Federal Register / Vol. 62, No. 223 / Wednesday, November 19, 1997 / Rules and Regulations 61649 with no evidence of meaningful reforms rule, covering both the issues of ACTION: Final rule. to Japanese port conditions, took no licensing of port transportation business action to prevent the rule from operations and the system of prior SUMMARY: On August 22, 1997, the becoming effective. consultation. With regard to the latter, Commission released a report and order Over the last several months, and relevant parties have agreed on reform adopting final rules to amend the particularly in recent weeks, U.S. and of the existing system and the creation Commissions rules, which govern the Japanese Government negotiators have of an alternative process of prior terms and conditions under which worked assiduously to craft agreements consultations. We expect that these customer-provided terminal equipment and reform plans to remedy the changes, when fully implemented, will may be connected to the telephone unfavorable conditions that prompted remedy those unfavorable conditions network without causing harm to the the Commission’s final rule. On October identified in the final rule. public switched network. As a result of 27, 1997, it came to the Commission’s Accordingly, the Commission is now the amendments, manufacturers will be attention that these negotiators had suspending the effectiveness of the final able to test terminal equipment for come to terms on certain documents rule. This action has the effect of compliance with a single, consistent set which, upon ratification, would ceasing both the assessment of fees on of technical standards accepted in both constitute a comprehensive agreement Japanese carriers and the requirement the United States and Canada. The to reform Japanese port practices. Based that they report vessel calls. harmonization of terminal attachment on this positive development, the The Commission expects that it will rules in the United States and Canada Commission entered into a consent collect information periodically in the will be a model for our harmonization order with the Japanese shipping lines, normal course to remain apprised of efforts with other countries. accepting a compromise payment of changes in port conditions resulting EFFECTIVE DATE: April 20, 1998. $1.5 million in full satisfaction of the $4 from implementation of the Agreements. FOR FURTHER INFORMATION CONTACT: million owed (and overdue) for the However, we would note that the month of September, and agreed to take arrangements reached by U.S. and Technical Information: William no further action in this matter while Japanese negotiators include provisions VonAlven, (202) 418–2342 or email at the ratification of the agreements were for consultation. It is our hope that, [email protected]. pending. should any disputes or problems arise Legal Information: Marian Gordon, On November 10, 1997, Chairman in the implementation of these (202) 418–2320 or email at Creel received a letter from Under agreements, they can appropriately be [email protected]. The address for both Secretary of State for Economic, addressed through diplomatic and is: Network Services Division, Common Business, and Agricultural Affairs Stuart consultative mechanisms. To encourage Carrier Bureau, Federal E. Eizenstat and Acting Maritime such a process, if a complaint relating Communications Commission, 2000 M Administrator John Graykowski, to matters contained in this docket is Street, NW, Suite 235, Washington, DC conveying final signed copies of lodged with the Commission at any time 20054. The fax number is: (202) 418– correspondence between Secretary of by interested persons, the Commission 2345. The TTY number is: (202) 418– State Madeleine K. Albright and immediately will notify the Secretary of 0484. Ambassador Kunihiko Saito reflecting State of such complaint, and will SUPPLEMENTARY INFORMATION: the arrangements reached by the U.S. request the Secretary of State to seek and Japan delegations during the talks. resolution of the outstanding matters I. Introduction Mr. Eizenstat and Mr. Graykowski stated through diplomatic channels. At the 1. In this Report and Order (‘‘Order’’), that ‘‘this package represents a same time, however, the Commission we adopt final rules to amend part 68 reasonable basis to recommend that the retains its authority to take further of the Commission’s rules, which Commission compromise all the action, should it become necessary to do governs the terms and conditions under remaining assessments under Docket so. which customer-provided terminal No. 96–20 for October and November Therefore, it is ordered, That 46 CFR equipment may be connected to the and suspend further assessments and 586.2 as published March 4, 1997 (62 telephone network without causing the requirement for Japanese carriers to FR 9696), and amended by the harm to the network.1 The amendments report further vessel calls.’’ Attached to Commission April 16, 1997 (62 FR we adopt herein are designed to Ambassador Saito’s letter were copies of 18532) is hereby suspended. harmonize United States and Canadian two agreements among the Government requirements governing connection of of Japan and commercial interests By the Commission. terminal equipment to the public regarding the system of prior Joseph C. Polking, switched network (‘‘PSN’’) and to consultation. Secretary. The Commission is persuaded that the promote barrier-free trade between [FR Doc. 97–30277 Filed 11–18–97; 8:45 am] Canada and the United States, in arrangements reflected in these BILLING CODE 6730±01±M documents represent a significant step keeping with the spirit of the North in the process of remedying unfavorable American Free Trade Agreement Japanese port conditions. While the FEDERAL COMMUNICATIONS 1 See 47 CFR part 68. For a history of part 68, see Commission’s ultimate concern is the COMMISSION Proposals for New or Revised Classes of Interstate improvement of actual shoreside and Foreign Message Toll Telephone Service practices and policies, in this case— 47 CFR Part 68 (‘‘MTS’’) and Wide Area Telephone Service where the issues are complex and the (‘‘WATS’’); Revision of part 68 of the Commission’s [CC Docket No. 96±28; FCC 97±270] rules to Specify Standard Plugs and Jacks for the affected interests are several—the Connection of Telephone Equipment to the crafting and achievement of consensus Connection of Customer-Provided Nationwide Telephone Network; and Amendment on workable reform plans is a vital and Terminal Equipment to the Telephone of Part 68 of the Commission’s rules (Telephone commendable part of the process. The Equipment Registration) to Specify Standards for Network and Means of Connection of Telephone Equipment agreed-upon plans address in substance to Lamp and/or Annunciator Functions of Systems, all of the unfavorable conditions AGENCY: Federal Communications Memorandum Opinion and Order, 70 FCC 2d 1800 identified in the Commission’s final Commission. (1979), 45 FR 20841, Mar. 31, 1980. 61650 Federal Register / Vol. 62, No. 223 / Wednesday, November 19, 1997 / Rules and Regulations

(‘‘NAFTA’’).2 As a result of these created a joint working group co-chaired technical matters. We sought comment amendments to part 68, manufacturers by representatives from the United on these tentative conclusions.9 in one country will be able to design States and Canada to develop a III. Discussion and test terminal equipment to comply harmonized set of rules to comply with with a single, consistent set of technical both countries’ requirements for A. Technical Amendments 4 standards accepted in both the United terminal attachment. 4. Positions of the Parties. There is States and Canada. 3. In February 1996, in response to unanimity of opinion among TIA’s Petition and comments received II. Background commenters that harmonization of part on the petition, the Commission issued 68 and CS–03 will benefit terminal 1. On March 9, 1995, the a Notice of Proposed Rulemaking equipment manufacturers as well as the Telecommunications Industry (NPRM) proposing to amend Part 68 to telecommunications industry. There Association (‘‘TIA’’) filed a Petition for harmonize United States and Canadian were no oppositions to any of the Rulemaking (‘‘Petition’’) to amend requirements for connection to the proposed rules. Northern Telecom §§ 68.300–68.318 and portions of § 68.2 5 PSN. In the NPRM, the Commission (‘‘Nortel’’), for example, supports the of the Commission’s rules to harmonize tentatively concluded that the amended Commission’s proposal and suggests United States network protection rules would promote barrier-free trade that harmonization of technical standards and corresponding Canadian between the United States and Canada requirements for attachment of terminal CS–03 certification regulations. Subpart by eliminating unnecessary differences equipment to the PSN will facilitate D of part 68, which includes §§ 68.300 6 in terminal attachment requirements. trade between the United States and through 68.318, addresses ‘‘Conditions We tentatively concluded that the Canada because manufacturers will for Registration,’’ including amended rules would be consistent with need to design and test to only one set requirements for environmental the spirit of NAFTA, and might become of common standards.10 Lucent agrees simulation (simulation ‘‘mimics’’ a guide for harmonization efforts with 7 that the amendment of part 68 will stresses that terminal equipment other countries. Furthermore, we result in commercial advantages.11 undergoes in shipment and handling tentatively concluded that the amended NYNEX argues that, under the proposed that could potentially damage it), rules would create a more competitive rules, a de facto barrier to trade that was leakage current limitations, hazardous equipment marketplace, resulting in inconsistent with NAFTA will be lower costs for equipment, thereby voltage limitation, signal power eliminated.12 Ameritech says that the benefitting United States and Canadian limitations, longitudinal balance proposed rules are an example of how consumers. We also stated that the limitations, on hook impedance ‘‘the government and industry can proposed rules were consistent with our limitations, billing protection, and achieve agreement without the need for commitment to ensure that customers hearing aid compatibility. Section 68.2 additional regulation.’’ 13 addresses the scope of the Commission’s and manufacturers can connect terminal 5. TIA and Sprint propose editorial rules for terminal attachment. equipment to the telephone network 8 corrections to the part 68 rules in 2. TIA is a national trade association without causing harm to the network. attachments to each of their Finally, we tentatively concluded that with more than 570 member companies comments.14 Additionally, Sprint the Commission must retain ultimate engaged in the manufacture, sale and argues that the Commission should add responsibility for part 68 functions, but distribution of telecommunications any tariffed data rates, i.e., all speeds of should rely on standards bodies equipment including terminal data communications that telephone whenever possible to resolve complex equipment. TIA’s Petition is the companies agree to provide to the culmination of four years of technical public for a requested service, to the National Standards Institute (‘‘ANSI’’), as well as effort by United States and Canadian amendments to part 68.15 More industry. In September, 1990, TIA’s international standards bodies outside the United States, to harmonize telecommunications specifically, Sprint states that 38.4 kbps Engineering Subcommittee TR–41, equipment standards to avoid duplicating is an existing T1 subrate service and as sponsored by its User Premises standardization work already successfully completed. TIA’s stated trade policy goals include such ‘‘qualifies for protection in Equipment Division, proposed a project accordance with the purpose of the part to ‘‘address differences’’ between ‘‘removal of barriers to market access, full participation of United States government and 68 rules.’’ 16 Canadian and United States terminal industry in the standards-setting process 6. Discussion. Based on the record, we 3 attachment rules. The Subcommittee worldwide, and achievement of a minimum level of amend part 68 to harmonize it with standards required to ensure interoperability and Canada’s CS–03 and summarize our 2 In Canada, certification means the right to attach proper function of the international network.’’ See terminal equipment to the PSN. Certification TIA Petition at 2. amendments as follows. Section 68.302 4 requires submission of an application that includes According to TIA, a wide range of interest is designed to protect the network from a technical description of the equipment and a groups in the United States and Canada were harm by ensuring that, despite being represented including carriers, manufacturers, measurement report showing compliance with CS– subject to environmental stresses, 03, the Canadian terminal attachment standard. laboratories, consultants and government Canadian requirements for terminal attachment are personnel. terminal equipment will continue to issued by Industry Canada (‘‘IC’’). Under the 5 See Public Notice, ‘‘Pleading Cycle Established comply with part 68 and not harm the direction of IC, the Terminal Attachment Program for Comments on TIA’s Petition for Rulemaking to Amend part 68, Subpart D’’, 10 FCC Rcd 4548 Advisory Committee (‘‘TAPAC’’), a government and 9 Id. (March 27, 1995); Amendment of Part 68 of the industry advisory committee, reviews and 10 Commission’s Rules, Notice of Proposed Nortel Comments at 1; see also VeriFone recommends changes to equipment certification Comments at 1. programs. Canada amended its terminal attachment Rulemaking, 11 FCC Rcd 13282 (1996), 61 FR 11 Lucent Comments at 2. rules (CS–03 standards) to harmonize Canadian 15441, Apr. 8, 1996, Erratum, (Mar. 29, 1996) 12 standards for terminal equipment with those set (‘‘NPRM’’). Seven parties filed comments in NYNEX Comments at 2. forth in part 68 on August 14, 1996. Canada response to the NPRM. On April 16, 1996, one party 13 Ameritech Comments at 1; see also Verifone Gazette, part I, June 15, 1996, Notice No. SMSE– filed reply comments. Comments at 1. 003–96. 6 NPRM 11 FCC Rcd at 13295. 14 Sprint Comments at 1; TIA Comments at 2. 3 TIA’s technical work is conducted through its 7 Id. The rules are consistent with the aims of the 15 Sprint Comments at 3. Engineering Committees, which develop, maintain, World Trade Organization, which like NAFTA, seek 16 Sprint requests that the valid tariffed data rate and publish voluntary standards and technical to reduce trade barriers in order to promote of 38.4 kbps be included in § 68.308(h)(1)(i), Table reports. TIA encourages these committees to work competition. 68.308(c), and Table 68.310(b). NPRM, 11 FCC Rcd cooperatively with members of the American 8 Id. at 13241–42, 13431, 61 FR 15441, Apr. 8, 1996. Federal Register / Vol. 62, No. 223 / Wednesday, November 19, 1997 / Rules and Regulations 61651 network. Amended § 68.302 deletes excessive signal power. We update this continue to be used under the vibration, temperature, and humidity section by revising the ‘‘Through Gain’’ provisions of § 68.2. stresses from part 68, and applies Table to reflect services such as 12. The record supports our tentative mechanical shock stresses only to Integrated Services Digital Network conclusion that amendment of part 68 equipment that might be affected by (‘‘ISDN’’) and to delete references to the as described above should lower the such stress. We delete these stresses 4-wire Conventional Termination Set price consumers pay for terminal because experience has shown, and the 18 interface. We also expand subrate equipment by facilitating greater record supports, that they are digital channel rates to include all rates efficiencies in the manufacturing and unnecessary given the technological presently used by industry, and adopt testing of terminal equipment. Under evolution in telecom equipment from an the ANSI T1 standard to replace the the amended rules, the technical arrangement of discrete electronic standard in the previous rules.19 Section components to solid state circuitry. requirements of part 68 and CS–03 68.308 also protects the network from would be harmonized so that a Over the past ten years, failures during harm by addressing crosstalk part 68 registration testing involving manufacturer in one country can design interference. We reword this section for and test terminal equipment to a single, these stresses is negligible. The benefits clarity and rename this section of streamlining our regulations in this consistent set of technical standards ‘‘Transverse Balance Limitations’’ to accepted in both the United States or regard far outweigh any possible harm harmonize it with internationally Canada. We conclude that these to the network created by these stresses. recognized Institute of Electrical and efficiencies will lead to an even more In addition, as the result of industry Electronic Engineers’ (‘‘IEEE’’) competitive market for terminal coordination, we are including a new terminology. Type B surge test to better assure equipment than currently exists, operability of customer premises 10. Section 68.312 addresses the resulting in lower costs for equipment, equipment during lightning storms. impedance (i.e., the resistance a circuit thus benefitting United States and 7. Section 68.304 leakage current offers to alternating current) that must Canadian consumers. be maintained on a telephone line. The limitations ensure that telephone 13. Moreover, as commenters amended rules reorganize and reword connections are adequately insulated recognize, the amendments to part 68 this section for clarity. Specifically, the against hazards to telephone company reconcile differences in standards and amended rules reduce the categories of personnel caused by voltages within the testing consistent with NAFTA. equipment itself or as a result of ringer types. We also delete those sections addressing message registration Currently, terminal equipment accidental contact with commercial manufactured for use in the United power sources. Previously, § 68.304 because this technology is no longer in use. States must meet the technical required testing using a 60 Hertz test requirements of part 68. Similarly, voltage. Amended § 68.304 changes the 11. Section 68.314 ensures that terminal equipment manufactured for 60 Hertz standard to either 50 or 60 transmission of signals in the network use in Canada must comply with the Hertz to harmonize with international does not interfere with proper operation technical requirements contained in frequencies used for this purpose and of network billing equipment. The CS–03. Each country’s respective with Underwriters Laboratories and amendments to this section include technical requirements have differed Canadian Standards Association rewording the section for clarity and sufficiently that terminal equipment insulation standards. deleting operating requirements for complying with one set of regulations 8. Section 68.306 imposes ‘‘fail safe’’ AIOD because the technology has been requirements on hazardous voltage. would not necessarily comply with the replaced. We also add a new section to technical requirements of the other These limits are generally used clarify reverse battery billing (a type of country. These differences, as NYNEX throughout the telephone industry as loop signaling) requirements. Section correctly states, have created voltage limitations below which special 68.316 Hearing Aid Compatibility unreasonable burdens on manufacturers protection of telephone craft personnel requirements are not amended by this and are a de facto barrier to trade is not required. Equipment must be Order. Furthermore, we delete reference inconsistent with the goals of NAFTA. designed to avoid creating voltages to 1.544 Mbps digital ‘‘keep-alive’’ By reconciling differences in standards exceeding these limits under normal requirements from § 68.318 because and testing, harmonization promotes the operation. We amend this section to they are no longer in effect.20 Finally, goals of NAFTA.21 Furthermore, the delete hazardous voltage requirements we amend definitions in § 68.3. For record supports our tentative conclusion for Message Registration (‘‘MR’’) and example, we delete references to MR that, as amended, the rules remain Automatic Identification of Outward and AIOD equipment, but clarify that Dialing (‘‘AIOD’’) because these types of any MR and AIOD equipment that consistent with the Commission’s technology are no longer in use.17 In remains connected to the network may longstanding commitment to ensure that addition, this Order changes the current no public harm results from attachment of private equipment to the PSN. The voltage limitation from 80 to 60 volts to 18 The Through Gain Table shows the maximum harmonize it with international safety net amplification permitted in multiport systems record is unanimous that the amended standards. between ports. The 4-wire Conventional 9. The signal power limitations of Terminating Set interface was an older technology 21 At a February 1997 meeting of the § 68.308 are designed to protect the used for connection of customer provided Telecommunications Standards Subcommittee equipment to analog voiceband private line (‘‘TSSC’’), Mexico agreed to a ‘‘Minimal’’ set of network from interference caused by services. network protection standards pursuant to NAFTA 19 Subrate digital channel rates previously used Article 1304–1 (with minor exceptions to 17 Message Registration (‘‘MR’’) was a specific by the industry ranged from 2.4 to 64 kilobits/ accommodate national deviations in networks) traffic recording system provided by certain older second (kbps). consistent with our initiative here to harmonize types of telephone systems. Automatic 20 Keep-alive refers to constantly present direct United States and Canadian network protection Identification of Outward Dialing (‘‘AIOD’’) was a current voltage formally provided from the central standards. The TSSC was established under NAFTA private branch exchange (PBX) service feature that office. Section 68.318 previously stated that ‘‘(u)ntil (Article 913) to creat a work plan for ‘‘making identified the calling line on calls directed to a December 18, 1989, terminal equipment connecting compatible the standards-related measures for public switched telephone network for automatic to 1.544 Mbps services shall contain circuitry that authorized equipment.’’ It is comprised of officials message accounting recording purposes. assures continuity of output signal.’’ from NAFTA member countries. 61652 Federal Register / Vol. 62, No. 223 / Wednesday, November 19, 1997 / Rules and Regulations rules in no way diminish network the same pace as technology.24 of industry experts to resolve complex protection. Consequently, we tentatively concluded technical matters. As we stated in the 14. Finally, we have reviewed the that the Commission should rely, NPRM, the Consultative Committee on editorial corrections proposed by TIA whenever possible, on standards bodies Telecommunications (‘‘CCT’’) has and Sprint and find that they clarify our to resolve complex technical issues. We substantially assisted various rules. For this reason, our final rules stated our reluctance, however, to harmonization activities.30 incorporate these suggested changes. In substitute industry consensus for our Additionally, we recently sought addition, we have added the tariffed part 68 rulemaking function as such comment on whether standards for data rate that Sprint suggests to our consensus may not always promote the enhanced wire quality and for rules. While we decline to require that public interest.25 We noted that determining gold equivalence should be all tariffed rates be included, we agree standards bodies often lack the permanent standards and, if so, what that the specific tariffed rate Sprint Commission’s authority to ensure industry body or bodies shall determine suggests should be included to cover its compliance with fair rules supporting an appropriate voluntary standard.31 We currently available service. safe and direct electrical connection of decline, however, to substitute industry subscriber’s terminal equipment to the B. Grandfathering Provision consensus completely for our part 68 PSN.26 rulemaking function. While they often 15. Positions of the Parties. Lucent 18. Positions of the Parties. TIA and may most expeditiously resolve argues that the Commission should NYNEX urge the Commission to adopt complex technical matters, standards amend § 68.2(j) to ‘‘provide a rule requiring manufacturers to bodies lack the Commission’s authority grandfathering for existing equipment, comply with the technical to ensure compliance with fair rules recommendations of industry standards in order to avoid any requirement to re- supporting safe and direct electrical bodies with appropriate Commission register all the equipment that has connection of subscribers’ telephone oversight. NYNEX states that ‘‘(i)nstead already been registered under current terminal equipment to the PSN. We rules.’’ 22 Lucent argues that a of specifying technical interfaces and note, for example, that new section grandfathering provision is necessary to requirements for terminal equipment in 273(d)(4) of the Communications Act of avoid re-registration of products that are the rules, the Commission should 1934, as amended, seeks to ensure that already registered under current rules, simply adopt a rule that requires voluntary standards do not become de are in use, and do not cause harm to the manufacturers of such equipment to facto standards that operate to exclude network. Several of the commenters add comply with the technical requirements legitimate parties. Similarly, while it in that re-registration of these products and technical recommendations this proceeding has strived to would impose substantial expense developed by appropriate industry incorporate the advice and assistance of without yielding any benefits. We note standards bodies under the standards bodies to resolve complex that no party has objected to a Commission’s auspices * * * .’’ 27 technical matters, the Commission must grandfathering provision. NYNEX contends that through its 16. Discussion. We are persuaded by oversight of industry standards bodies, continue to ensure through its commenters that there would be no the Commission should be satisfied as rulemaking function that fair rules are benefit to requiring the re-registration of to the ‘‘reasonableness’’ of any resulting developed. equipment already in use and shown technical recommendations. TIA argues IV. Conclusion not to cause harm to the network. We that the current regulatory rulemaking therefore adopt a grandfathering process lags behind changes in 20. We conclude that the rules we provision.23 The new rule 68.2(j) reads technology and supports NYNEX’s adopt herein will eliminate unnecessary as follows: proposal.28 Moreover, TIA states that differences in terminal attachment Terminal equipment and systems NYNEX’s suggested approach would be requirements, and thereby promote registered prior to April 20, 1998, do not consistent with recent congressional barrier-free trade, between the United have to be re-registered unless subsequently directives.29 VeriFone contends that States and Canada. We find this to be modified. All new equipment and systems industry standards bodies should consistent with the spirit and letter of manufactured after May 19, 1999, must remain responsible for technical issues, NAFTA, which mandates elimination of conform to the requirements. but concurs with the Commission’s trade barriers through reconciliation of C. Regulatory Process decision to retain ultimate differences in standards and testing responsibility in matters pertaining to 17. Background. In the NPRM, we procedures. These rules may become a part 68 rulemaking authority. model for our harmonization efforts stated that although harmonization of 19. Discussion. We acknowledge that technical requirements for attachment of with countries around the world and efforts to harmonize our terminal should benefit consumers by creating a terminal equipment satisfies NAFTA attachment rules with those of other requirements in a manner consistent more competitive equipment countries will be impeded if the marketplace, thereby lowering the with the interests of United States regulatory rulemaking process fails to industry in facilitating greater prices they pay for equipment. We keep pace with technological changes. conclude that these rules are consistent efficiencies in manufacturing terminal Therefore, we conclude that the equipment, we recognized that the with the Commission’s long-standing Commission should rely, whenever commitment to ensure that no public usefulness of a harmonized standard is possible, on standards bodies composed jeopardized if our regulatory process harm results from attachment of private does not allow the standard to evolve at 24 NPRM, 11 FCC Rcd at 13294. 30 NPRM, 11 FCC Rcd at 13294. 25 Id. at 13295. 31 Review of §§ 68.104 and 68.213 of the 22 Lucent Comments at 2; see also TIA Comments 26 Id. at 2–3. Commission’s Rules Concerning Connection of 27 NYNEX Comments at 3. Simple Inside Wiring to the Telephone Network, 23 We note, however, that based on past 28 TIA Comments at 3; TIA Reply Comments at Order on Reconsideration, Second Report and experience, the vast majority of equipment covered 3–5. Order and Second Further Notice of Proposed by the grandfathering rule will be phased out of 29 See, e.g., National Technology Transfer and Rulemaking, CC Docket No. 88–57, FCC 97–209 production and replaced by models that will be Advancement Act of 1995, Pub. L. 104–113, sec. 12, (June 17, 1997), at paras. 54–55, 62 FR 36463, Jul. subject to the new rules. 110 Stat. 775, 782–83 (1996). 8, 1997. Federal Register / Vol. 62, No. 223 / Wednesday, November 19, 1997 / Rules and Regulations 61653 equipment to the public switched proposed rules. The RFA defines the decision and rules adopted in this network. term ‘‘small entity’’ as having the same Order. meaning as the terms ‘‘small business,’’ V. Regulatory Flexibility Analysis Description of Projected Reporting, ‘‘small organization,’’ and ‘‘small 21. Final Regulatory Analysis: As Recordkeeping and Other Compliance business concern’’ under section 3 of Requirements required by the Regulatory Flexibility the Small Business Act.33 A small 32 Act (‘‘RFA’’), an Initial Regulatory business concern is one which: (1) Is 27. There are no reporting or Flexibility Analysis (‘‘IRFA’’) was independently owned and operated; (2) recordkeeping requirements. incorporated in the Notice of Proposed is not dominant in its field of operation; Manufacturers will be required to test Rulemaking in this proceeding, 11 FCC and (3) satisfies any additional criteria terminal equipment to a single, Rcd 13282 (1996); Erratum, (released established by the SBA.34 SBA has consistent set of technical standards March 29, 1996) (‘‘NPRM’’). The defined a small business for Standard accepted in both the United States and Commission sought written public Industrial Classification (‘‘SIC’’) Canada. comments on the proposals in the category 4813 (Telephone NPRM, including comment on the IRFA. Steps Taken to Minimize Significant Communications), Except This present Final Regulatory Flexibility Economic Impact on Small Entities, and Radiotelephone) to be a small entity Analysis (‘‘FRFA’’) in this Report and Significant Alternatives Considered when it has no more than 1,500 Order (‘‘Order’’) conforms to the RFA. 28. We are adopting § 68.2(j), which employees.35 states that equipment already registered Need for, and Objectives of, This Order 25. Consistent with our prior practice, and the Rules Adopted Herein under the current rules does not need to we here exclude small incumbent local be re-registered under the new rules. We 22. Consistent with the intent of the exchange carriers (LECs) from the believe that such a provision will save North American Free Trade Agreement definition of small entity and small manufacturers, some of which may be (‘‘NAFTA’’), this Order amends part 68 business concern. While such a small businesses, the expenses incurred of the Commission’s rules to promote company may have 1500 or fewer in re-registering equipment that is barrier-free trade between the United employees and thus fall within the already in use and has been shown not States and Canada. Part 68 governs the SBA’s definition of a small to cause harm to the network.38 No terms and conditions under which telecommunications entity, such alternative to this beneficial action was customer provided terminal equipment companies are either dominant in their suggested. may be connected to the telephone field of operations or are not Report to Congress network. As a result of the amendments independently owned and operated. Out to part 68, manufacturers will be able to of an abundance of caution, however, 29. The Commission will send a copy test terminal equipment for compliance for regulatory flexibility analysis of the Order, including this FRFA, in a with a single, consistent set of technical purposes, we will consider small report to be sent to Congress pursuant standards accepted in both the United incumbent LECs within this present to the Small Business Regulatory States and Canada. The harmonization analysis and use the term ‘‘small Enforcement Fairness Act of 1996, see 5 of terminal attachment rules in the incumbent LECs’’ to refer to any U.S.C. 801(a)(1)(A). A copy of the Order United States and Canada will be a incumbent LEC that arguably might be and this FRFA (or summary thereof) model for our harmonization efforts defined by SBA as a small business will also be published in the Federal with other countries. We adopt a concern. Register, see 5 U.S.C. 604(b), and will be grandfathering provision to cover sent to the Chief Counsel for Advocacy 26. Manufacturers of equipment already registered under of the Small Business Administration. current rules. Telecommunications Equipment: The Commission has not developed a VI. Ordering Clauses Summary of Significant Issues Raised by definition of small manufacturers of 30. Accordingly, it is ordered that, Public Comments in Response to the terminal equipment. The closest IRFA pursuant to sections 1, 4, 201–205, 218, applicable definition under SBA rules is 220, 226, 227, 255, and 710 of the 23. No comments were submitted for manufacturers of telephone and Communications Act of 1934, as specifically in response to the IRFA. We telegraph apparatus (SIC 3661), which amended, 47 U.S.C. 151, 154, 201–205, have reviewed the general comments to defines a small manufacturer as one 218, 220, 226, 227, 255, and 610, and 5 identify issues that may have a having 1000 or fewer employees.36 U.S.C. 552 and 553, this Report and significant economic impact on small According to 1992 Census Bureau data, Order is adopted, and part 68 of the businesses. All commenters addressing there were 479 such manufacturers, and the proposed amendments to part 68 of of those, 436 had 999 or fewer 38 The rule changes ameliorate potential technical our Rules supported the amendments. employees, and 7 had between 1000 and barriers to entry in both the U.S. and Canada 1499 employees.37 Consequently, we markets, thereby allowing manufacturers and Description and Estimate of the Number estimate that there are fewer than 443 suppliers, including small manufacturers and of Small Entities To Which Rules Will suppliers, a reasonable opportunity to conduct Apply small manufacturers of terminal business in both markets. This result in consistent equipment that may be affected by the with the general purposes of section 257 of the 1996 24. The RFA directs the Commission Telecommunications Act, 47 U.S.C. 257. That section requires, among other things, that the to provide a description of and, where 33 See 5 U.S.C. 601(3) (incorporating by reference Commission eliminate market entry barriers for feasible, an estimate of the number of the definition of ‘‘small business concern’’ in 5 small businesses who may provide parts or services U.S.C. 632). small entities that will be affected by the to providers of telecommunications services and 34 15 U.S.C. 632. information services. Id. at section 257(a). The 32 See 5 U.S.C. 603. The RFA, see 5 U.S.C. 601 35 See 13 CFR 121.201. Commission recently issued a report in GN Docket et seq., has been amended by the Contract With 36 13 CFR 121.201, SIC 3661. No. 96–113 regarding its implementation of Section America Advancement Act of 1996, Pub. L. 104– 37 1992 Economic Census, Industry and 257. See Section 257 Proceeding to Identify and 121, 110 Stat. 847 (1996) (CWAAA). Title II of the Employment Size of Firm, Table 1D (data prepared Eliminate Market Entry Barriers for Small CWAA is the Small Business Regulatory by U.S. Census Bureau under contract to the U.S. Businesses, Report No. 97–8, 1997 WL 232120 Enforcement Fairness Act of 1996 (SBREFA). Small Business Administration). (1997). 61654 Federal Register / Vol. 62, No. 223 / Wednesday, November 19, 1997 / Rules and Regulations

Commission’s rules are amended as set outward dialing, and message Figure 68.3(i) is revised to read Figure forth below. registration): 68.3(g) and Figure 68.3(j) is revised to 31. It is further ordered, that the rule * * * * * read Figure 68.3(h). amendments set forth below shall be (4) PBX (or similar) systems § 68.3 Definitions. effective April 20, 1997. connected with automatic identified 32. It is further ordered, that the outward dialing or message registration * * * * * Commission shall send a copy of this private line services of a type that Capture Level: Equipment with AGC Order, including the Final Regulatory complies with paragraphs (d)(l) and (Automatic Gain Control) signal power Flexibility Analysis, to the Chief (d)(2) of this section may remain limiting has virtually no output signal Counsel for Advocacy of the Small connected for life without registration for input levels below a certain value. Business Administration. unless subsequently modified. At some input signal power, the output level will become significant (usually List of Subjects in 47 CFR Part 68 * * * * * (j) Terminal equipment including corresponding to the expected output Administrative practice and premises wiring and protective level) for the service application. The procedure, Communications common apparatus (if any) directly connected to input level at which this occurs is carriers, Communications equipment, the network on April 20, 1997, may defined as the ‘‘capture level.’’ Telephone. remain connected and be reconnected * * * * * Federal Communications Commission. for life without registration, unless Dual Tone Multi Frequency (DTMF) subsequently modified. New network control signalling is a method William F. Caton, installations of terminal equipment, of signalling using the voice Acting Secretary. including premises wiring and transmission path. The method employs 47 CFR part 68 is amended as follows: protective apparatus (if any) may be sixteen (16) distinct signals each installed (including additions to composed of two (2) voiceband PART 68ÐCONNECTION OF existing systems) up to May 19, 1999, frequencies, one from each of two (2) TERMINAL EQUIPMENT TO THE without registration of any terminal geometrically spaced groups designated TELEPHONE NETWORK equipment involved, provided that the ‘‘low group’’ and ‘‘high group.’’ The terminal equipment is of a type directly selected spacing assures that no two 1. The authority citation for part 68 connected to the network as of April 20, frequencies of any group combination continues to read as follows: 1998. This terminal equipment may are harmonically related. Authority: Sec. 1, 4, 5, 201–5, 208, 215, remain connected and be reconnected to * * * * * 218, 226, 227, 303, 313, 314, 403, 404, 410, the network for life without registration, Overload Point: (1) For signal power 522 of the Communications Act of 1934, as unless subsequently modified. amended, 47 U.S.C. 151, 154, 155, 201–5, limiting circuits incorporating 208, 215, 218, 226, 227, 303, 313, 314, 403, * * * * * automatic gain control method, the 404, 410, 522. 3. Section 68.3 is amended by adding ‘‘overload point’’ is the value of the the following definitions for Capture input signal that is 15 dB greater than 2. Section 68.2 is amended by revising Level, Dual Tone Multi Frequency the capture level. paragraphs (a)(3); (d), introductory text, (DTMF), Overload Point, and Voiceband (2) For signal power limiting circuits and paragraph (j) and adding new in alphabetical order; by revising the incorporating peak limiting method, the paragraph (d)(4) to read as follows: definition for ‘‘Zero Level Decoder’’; ‘‘overload point’’ is defined as the input § 68.2 Scope. removing the definitions for AOID Data level at which the equipment’s through Channel Simulator, AIOD Leads, (a) * * * gain decreases by 0.4 dB from its Message Register Leads, Message nominal constant gain. (3) Of all PBX (or similar) systems to Register Signaling Channel Simulator; * * * * * private line services for tie trunk type in the definition for Tie Trunk Voiceband: The voiceband for analog interfaces and off premises station lines. Transmission Interfaces, by removing interfaces is the frequency band from Services may only be added to this paragraph (c) 4-wire Conventional 200 Hz to 3995 Hz. section as a result of rulemaking Terminating Set (CTS); removing figures proceedings and equipment connected 68.3(a), 68.3(f), 68.3(g), 68.3(h), 68.3(i), * * * * * to such added services is afforded a 68.3(j), 68.3(k), 68.3(l) and 68.3(m) and Zero Level Decoder: The zero level reasonable transition period. adding in their place Figures 68.3(a), decoder shall comply with the u=255 * * * * * 68.3(f), 68.3(g), 68.3(h), 68.3(i), 68.3(j) PCM encoding law as specified in ITU– (d) Grandfathered private branch and 68.3(k). Figure references are TSS (CCITT) Rec. G.711 for voiceband exchange (or similar) systems for corrected in the following definitions: In encoding and decoding. See also Fig. connection to private line type services Local Area Data Channel Simulator, 68.3(j). (tie trunk type services, off-premises Figure 68.3(k) is revised to read Figure * * * * * station lines automatic identified 68.3(i), and in Loop Simulator Circuit, BILLING CODE 6712±01±P Federal Register / Vol. 62, No. 223 / Wednesday, November 19, 1997 / Rules and Regulations 61655 61656 Federal Register / Vol. 62, No. 223 / Wednesday, November 19, 1997 / Rules and Regulations Federal Register / Vol. 62, No. 223 / Wednesday, November 19, 1997 / Rules and Regulations 61657 61658 Federal Register / Vol. 62, No. 223 / Wednesday, November 19, 1997 / Rules and Regulations Federal Register / Vol. 62, No. 223 / Wednesday, November 19, 1997 / Rules and Regulations 61659 61660 Federal Register / Vol. 62, No. 223 / Wednesday, November 19, 1997 / Rules and Regulations Federal Register / Vol. 62, No. 223 / Wednesday, November 19, 1997 / Rules and Regulations 61661 61662 Federal Register / Vol. 62, No. 223 / Wednesday, November 19, 1997 / Rules and Regulations Federal Register / Vol. 62, No. 223 / Wednesday, November 19, 1997 / Rules and Regulations 61663

BILLING CODE 6712±01±C 61664 Federal Register / Vol. 62, No. 223 / Wednesday, November 19, 1997 / Rules and Regulations

§ 68.222 [Removed] telephone line surges, Type A and Type equipment, connected together. Surges 4. Section 68.222 is removed. B, shall be applied as specified in are applied as follows: 5. Section 68.300 is revised to read as paragraphs (b) and (c) of this section. (i) With the equipment in all states follows: Different failure criteria apply for each that can affect compliance with the surge type. requirements of this part 68. If an § 68.300 Labeling requirements. (a) Mechanical shock. (1) Hand-Held equipment state cannot be achieved by (a) Registered terminal equipment and Items Normally Used at Head Height: 18 normal means of power, it may be registered protective circuitry shall have random drops from a height of 1.5 achieved artificially; prominently displayed on an outside meters onto concrete covered with 3 (ii) With equipment leads not being surface the following information in the millimeters asphalt tile or similar surged (including telephone following format: surface. connections, auxiliary leads, and Complies With Part 68, FCC Rules (2) Table (Desk) Top Equipment 0–5 terminals for connection to non- registered equipment) terminated in a lllll kilograms: Six random drops from a FCC Registration Number: height of 750 millimeters onto concrete manner that occurs in normal use; llllllll Ringer Equivalence: covered with 3 millimeters asphalt tile (iii) Under reasonably foreseeable (b) Registered terminal equipment and or similar surface. disconnection of primary power registered protective circuitry shall also (3) The drop tests specified in the sources, as for example, with primary have the following identifying mechanical shock conditioning stresses power cords plugged and unplugged. information permanently affixed to it. shall be performed as follows: The unit Note to paragraph (b)(2): The surge shall (1) Grantee’s name. should be positioned prior to release to have an open circuit voltage waveform in (2) Model number, as specified in the ensure as nearly as possible that for accordance with Figure 68.302(b) with a front µ µ registration application. every six drops there is one impact on time (tf ) of 10 ms ( seconds) maximum and (3) Serial number or date of each of the major surfaces and that the a decay time (td) of 160 ms minimum, and manufacture. surface to be struck is approximately shall have a short circuit current waveshape in accordance with Figure 68.302(c) having a (4) Country of origin of the parallel to the impact surface. lllll front time (tf) of 10 ms maximum and a decay equipment: ‘‘Made in .’’ (b) Telephone Line Surge—Type A.— Required if the equipment is not time (td) of 160 ms minimum. The peak (1) Metallic. Apply two metallic voltage voltage shall be at least 1500 volts and the manufactured in the United States. surges (one of each polarity) between peak short circuit current shall be at least 200 (Country of origin shall be determined any pair of connections on which amperes. in accordance with 19 U.S.C. 1304 and lightning surges may occur; this regulations promulgated thereunder.) (3) Failure Modes resulting from includes: application of Type A telephone line (5) As used herein, permanently (i) Tip to ring; affixed means that the required surges. Regardless of operating state, (ii) Tip 1 to ring 1; and equipment and circuitry are allowed to nameplate data is etched, engraved, (iii) For a 4-wire connection that uses stamped, indelibly printed or otherwise be in violation of the longitudinal simplexed pairs for signalling, tip to balance requirements of § 68.310(b) and permanently marked. Alternatively, the ring 1 and ring to tip 1. required information may be (c) and, for terminal equipment permanently marked on a nameplate of Note to paragraph (b)(1). The surge shall connected to Local Area Data Channels, have an open circuit voltage waveform in metal, plastic, or other material fastened the longitudinal signal power accordance with Figure 68.302(b) having a requirements of § 68.308(f)(3), if: to the enclosure by welding, riveting, or µ front time (tf)) of 10 s maximum and a decay (i) Such failure results from an with a permanent adhesive. Such a µ time (td) of 560 s minimum, and shall have intentional, designed failure mode that nameplate must be able to last for the a short circuit current waveshape in has the effect of connecting telephone or expected lifetime of the equipment and accordance with Figure 68.302(c) having a auxiliary connections with earth must not be readily detachable. front time (tf) of 10 ms maximum and a decay µ ground; and, (6) When the device is so small or for time (td) of 560 s minimum. The peak (ii) If such a failure mode state is such use that it is not practical to place voltage shall be at least 800 volts and the reached, the equipment is designed so the statements specified in this section peak short circuit current shall be at least 100 amperes. Surges are applied: that it would become substantially and on it, the information required by noticeably unusable by the user, or an paragraphs (a) and (b) of this section (A) With the equipment in all states that can affect compliance with the requirements indication is given (e.g., an alarm), in shall be placed in a prominent location of this part 68. If an equipment state cannot order that such equipment can be in the instruction manual or pamphlet be achieved by normal means of power, it immediately disconnected or repaired. supplied to the user. The FCC may be achieved artificially; Registration Number and the Model (B) With equipment leads not being surged Note to paragraph (b)(3)(ii): The objective Number shall be displayed on the (including telephone connections, auxiliary of paragraph (b)(3)(ii) is to allow for safety device. leads, and terminals for connection to non- circuitry to either open-circuit, which would registered equipment) terminated in a cause a permanent on-hook condition, or to 6. Section 68.302 is revised to read as short-circuit to ground, as a result of an follows: manner that occurs in normal use; (C) Under reasonably foreseeable energetic lightning surge. Off-hook tests § 68.302 Environmental simulation. disconnection of primary power sources, would be unwarranted if the off-hook state cannot be achieved. A short to ground has with primary power cords plugged and Unpackaged Registered Terminal the potential for causing interference unplugged, if so configured. Equipment and Registered Protective resulting from longitudinal imbalance, and Circuitry shall comply with all the rules (2) Longitudinal. Apply two therefore designs must be adopted which will specified in this subpart, both prior to longitudinal voltage surges (one of each cause the equipment either to be and after the application of the polarity) from any pair of connections disconnected or repaired rapidly after such a mechanical and electrical stresses on which lightning surges may occur. state is reached, should it occur in service. specified in this section, This includes the tip-ring pair and the (c) Telephone Line Surge—Type B.— notwithstanding that certain of these tip 1—ring 1 pair, to earth grounding (1) Metallic. Apply two metallic voltage stresses may result in partial or total connections, and to all leads intended surges (one of each polarity) to destruction of the equipment. Both for connection to non-registered equipment between any pair of Federal Register / Vol. 62, No. 223 / Wednesday, November 19, 1997 / Rules and Regulations 61665 connections on which lightning surges (C) Under reasonably foreseeable plugged and unplugged, if so may occur; this includes: disconnection of primary power sources, as configured. (i) Tip to ring; for example, with primary power cords plugged and unplugged. Note to paragraph (c)(2): For each output (ii) Tip 1 to ring 1; and lead of the surge generator, with the other (iii) For a 4-wire connection that uses (2) Longitudinal. Apply two lead open, the surge shall have an open simplexed pairs for signalling, tip to longitudinal voltage surges (one of each circuit voltage waveform in accordance with ring 1 and ring to tip 1. polarity) from any pair of connections Figure 68.302(b) having a front time (tf) of 9 µ ± µ ± Note to paragraph (c)(1): The surge shall on which lightning surges may occur. s ( 30%) and a decay time (td) of 720 s ( have an open circuit voltage waveform in This includes the tip-ring pair and the 20%) and shall have a short circuit current accordance with Figure 68.302(b) having a tip 1—ring 1 pair to earth grounding waveshape in accordance with Figure ± 68.302(c) having a front time (tf) of 5 µs front time (tf) of 9 ms ( 30%) and a decay connections and to all leads intended µ ± (±30%) and a decay time (td) of 320 µs time (td) of 720 s ( 20%) and shall have a for connection to non-registered (±20%). The peak voltage shall be at least short circuit current waveshape in equipment, connected together. Surges 1500 volts and the peak short circuit current accordance with Figure 68.302(c) having a are applied as follows: front time (tf) of 5 ms (±30%) and a decay shall be at least 37.5 amperes. The wave (i) With the equipment in all states time (td) of 320 µs (±20%). The peak voltage shapes are based on the use of ideal shall be at least 1000 volts and the peak short that can affect compliance with the components in Figure 68.302)(a) with S2 in circuit current shall be at least 25 amperes. requirements of this part 68. If an Position L. The wave shapes are based on the use of equipment state cannot be achieved by ideal components in Figure 68.302(a) with S2 normal means of power, it may be (3) Failure Modes resulting from in Position M. Surges are applied: achieved artificially. application of Type B telephone line (A) With the equipment in all states that (ii) With equipment leads not being surges. Registered terminal equipment can affect compliance with the requirements surged (including telephone and registered protective circuitry shall of this part 68. If an equipment state cannot connections, auxiliary leads, and be capable of withstanding the energy of be achieved by normal means of power, it terminals for connection to non- Surge Type B without causing may be achieved artificially. registered equipment) terminated in a permanent opening or shorting of the (B) With equipment leads not being surged manner that occurs in normal use. interface circuit and without sustaining (including telephone connections, auxiliary damage that will affect compliance with leads, and terminals for connection to non- (iii) Under reasonably foreseeable registered equipment) terminated in a disconnection of primary power these rules. manner that occurs in normal use. sources, with primary power cords BILLING CODE 6712±01±P 61666 Federal Register / Vol. 62, No. 223 / Wednesday, November 19, 1997 / Rules and Regulations

BILLING CODE 6712±01±C Federal Register / Vol. 62, No. 223 / Wednesday, November 19, 1997 / Rules and Regulations 61667

(d) Power Line Surge. (1) Apply six but excluding terminals for connection suppressor), may have the component power line surges (three of each to other terminal equipment; providing the conducting path removed from polarity) between the phase and neutral (d) All terminals for connection to the equipment for the leakage current test in terminals of the ac power line while the registered protective circuitry or non- that operational state. Components removed registered equipment; for this reason shall comply with the equipment is being powered. The surge requirements of § 68.306(e)(2). shall have an open circuit voltage (e) All auxiliary lead terminals; (f) All E&M lead terminals, and (5) Filter paths, such as capacitors used in waveform in accordance with Figure EMI filters, are left in place during leakage (g) All PR, PC, CY1 and CY2 leads. 68.302(b) having a front time (tf) of 2 µs current testing, since these components can maximum and a decay time (td) of 10 µs be a path for excessive leakage. minimum and shall have a short circuit TABLE 68.304(a).ÐVOLTAGE APPLIED (6) For multi-unit equipment current waveshape in accordance with FOR VARIOUS COMBINATIONS OF interconnected by cables, that is evaluated and registered as an interconnected Figure 68.302(c) with a front time (tf) of ELECTRICAL CONNECTIONS combination or assembly, the specified 10 2 µs maximum and a decay time (td) of mA peak maximum leakage current 10 µs minimum. The peak voltage shall Voltage source connected between: ac value1 limitation other than between power be at least 2500 volts and the peak short connection points and other points, may be circuit current shall be at least 1000 (a) and (b) (see NOTES 1, 2, 3) ...... 1500 increased as described here to accommodate amperes. Surges are applied: (a) and (c) (see NOTES 1, 2) ...... 1000 cable capacitance. The leakage current (i) With the equipment in all states (a) and (d) (see NOTES 1, 2) ...... 1000 limitation may be increased to (10N+0.13L) that can affect compliance with the (a) and (e) (see NOTES 1, 2) ...... 1000 mA peak where L is the length of requirements of this part 68. If an (a) and (f) (see NOTES 1, 2) ...... 1000 interconnecting cable in the leakage path in equipment state cannot be achieved by (a) and (g) (see NOTES 1, 2) ...... 1000 meters and N is the number of equipment normal means of power, it may be (b) and (c) (see NOTE 3) ...... 1500 units that the combination or assembly will (b) and (d) (see NOTE 3) ...... 1500 achieved artificially; place in parallel across a telephone (b) and (e) (see NOTE 3) ...... 1500 connection. (ii) With equipment leads not being (b) and (f) (see NOTE 3) ...... 1500 (7) RF filters and surge protectors on the surged (including telephone (b) and (g) (see NOTE 3) ...... 1500 line side of power supplies may be connections, auxiliary leads, and (c) and (e) (see NOTES 1, 2) ...... 1000 disconnected before making § 68.304 leakage terminals for connection to non- (c) and (f) (see NOTES 1, 2) ...... 1000 measurements. As an alternative to registered/non-certified equipment) (d) and (e) (see NOTE 2) ...... 1000 disconnecting these filters and surge terminated in a manner which occurs in (d) and (f) (see NOTE 2) ...... 1000 protectors, this measurement may be made normal use. (e) and (f) (see NOTE 2) ...... 1000 using a dc voltage equal to the peak ac test voltage. (2) Failure Modes resulting from 1 Value to which test voltage is gradually in- application of power line surge. creased. 9. Section 68.306 is revised to read as Registered terminal equipment and Notes to Table 68.304(a): follows: registered protective circuitry shall (1) Gradually increase the voltage from comply with all the criteria contained in zero to the values listed in Table 68.304(a) § 68.306 Hazardous voltage limitations. the rules and regulations in this subpart, over a 30-second time period, then maintain (a) General. Under no condition of both prior to and after the application of the voltage for one minute. The current in the failure of registered terminal equipment the power line surge specified in mesh formed by the voltage source and these or registered protective circuitry that points shall not exceed 10 mA peak at any paragraph (d )of this section, not can be conceived to occur in the withstanding that this surge may result time during this 90-second interval. (2) Equipment states necessary for handling, operation or repair of such in partial or total destruction of the compliance with the requirements of this equipment or circuitry, shall the open equipment under test. section that cannot be achieved by normal circuit voltage on telephone connections 8. Section 68.304 is revised to read as means of power shall be achieved artificially exceed 70 volts peak after one second, follows: by appropriate means. except for voltages for network control (3) A telephone connection, auxiliary lead, signalling, alerting and supervision. § 68.304 Leakage current limitations. or E&M lead that has an intentional dc Registered terminal equipment and conducting path to earth ground at (1) Type I E&M Leads. Registered registered protective circuitry shall have operational voltages (such as a ground start terminal equipment shall comply with a voltage applied to the combination of lead), may be excluded from the leakage the following requirements for terminal points listed in the table below. The test current test in that operational state. Leads or equipment on the ‘‘A’’ or ‘‘B’’ side of the voltage shall be ac of 50 or 60 Hz rms. connections excluded for this reason shall interface as shown in Figures 68.3(e)(i): comply with the requirements of (a) All telephone connections; (i) The dc current on the E lead shall § 68.306(e)(1). not exceed 100 mA. (b) All power connections; (4) A telephone connection, auxiliary lead, (c) All possible combinations of or E&M lead that has an intentional dc (ii) The maximum dc potentials to exposed conductive surfaces on the conducting path to earth ground for ground shall not exceed the following exterior of such equipment or circuitry protection purposes at the leakage current when measured across a resistor of 20 including grounding connection points, test voltage (such as through a surge kohms ±10%:

TABLE 68.306(a).ÐTYPE I E&M, DC POTENTIALS

E lead M lead

TE on ``B'' side originates signals to network ±5 V ...... ±5 V. on E lead. TE on ``A'' side originates signals to network ¥56.5 V; no positive potential with respect to ¥56.5 V; no positive potential with respect to on M lead. ground. ground.

(iii) The maximum ac potential between E&M leads and ground reference shall not exceed 5V peak. (iv) M lead protection shall be provided so that voltages to ground do not exceed 60 volts. For relay contact implementation, a power dissipation capability of 0.5 watt shall be provided in the shunt path. 61668 Federal Register / Vol. 62, No. 223 / Wednesday, November 19, 1997 / Rules and Regulations

(v) If the registered terminal equipment contains an inductive component in the E lead, it must assure that the transient voltage across the contact as a result of a relay contact opening does not exceed the following voltage and duration limitations: (A) 300 volts peak, (B) A rate of change of one volt per microsecond, and (C) A 60-volt level after 20 milliseconds. (2) Type II E&M Leads. Registered terminal equipment shall comply with the following requirements: (i) For terminal equipment on the ‘‘A’’ side of the interface, the dc current in the E lead shall not exceed 100 mA. The maximum ac potential between the E lead and ground shall not exceed 5 V peak. (ii) For terminal equipment on the ‘‘B’’ side of the interface, the dc current in the SB lead shall not exceed 100 mA. The maximum ac potential between the SB lead and ground shall not exceed 5 V peak. (iii) The maximum dc potentials to ground shall not exceed the following when measured across a resistor of 20 kohms ±10%:

TABLE 68.306(b).ÐTYPE II E&M, DC POTENTIALS

E lead M lead SB lead SG lead

TE on ``B'' side of the interface origi- ±5 V ...... ±5 V ¥56.5 V; no positive potential with ±5 V. nates signals to network on E lead. respect to ground. TE on ``A'' side of the interface origi- ¥56.5 V; no positive potential with ±5 V ±5 V ...... ±5 V. nates signals to network on M lead. respect to ground.

(iv) The maximum ac potential to supervisory purposes must be negative (iv) Combined ac and dc voltages ground shall not exceed 5V peak on the with respect to ground, shall not be between any conductor and ground are following leads, from sources in the more than ¥56.5 volts dc with respect less than 42.4 volt peak when the terminal equipment: to ground, and shall not have a absolute value of the dc component is (A) M, SG and SB leads for terminal significant ac component.2 less than 21.2 volts, and less than (32.8 equipment on the ‘‘A’’ side of the (5) Local Area Data Channel + 0.454 × Vdc) when the absolute value interface. Interfaces. For Local Area Data Channel of the dc component is between 21.2 (B) E, SG and M leads for terminal interfaces, during normal operating and 60 volts. equipment on the ‘‘B’’ side of the modes including terminal equipment (6) Ringdown Voiceband Private Line interface. initiated maintenance signals, registered and Voiceband Metallic Channel (v) If the registered terminal terminal equipment shall ensure, except Interface. During normal operation, equipment contains an inductive during the application of ringing registered terminal equipment for component in the (E) or (M) lead, it (limitations specified in paragraph (d) of connection to ringdown voiceband must assure that the transient voltage this section), with respect to telephone private line interfaces or voiceband across the contact as a result of a relay connections (tip, ring, tip 1, ring 1) that: metallic channel interfaces shall ensure contact opening does not exceed the (i) Under normal operating that: following voltage and duration conditions, the rms current per (i) Ringing voltage does not exceed limitations: conductor between short-circuit the voltage and current limits specified (A) 300 volts peak, conductors, including dc and ac in paragraph (d) of this section, and is: (B) A rate of change of one volt per components, does not exceed 350 (A) Applied to the ring conductor microsecond, and milliamperes. For other than normal with the tip conductor grounded for 2- (C) A 60-volt level after 20 operating conditions, the rms current wire interfaces, or milliseconds. between any conductor and ground or (B) Simplexed on the tip and ring (3) Off premises station voltages. (i) between short-circuited conductors, conductors with ground simplexed on Talking battery or voltages applied by including dc and ac components, may the tip 1 and ring 1 conductors for 4- the PBX (or similar systems) to all exceed 350 milliamperes for no more wire interfaces. classes of OPS interface leads for than 1.5 minutes; (ii) Except during the signaling mode supervisory purposes must be negative (ii) The dc voltage between any or for monitoring voltage, there is no with respect to ground, shall not be conductor and ground does not exceed significant positive dc voltage (not over more than ¥56.5 volts dc with respect 60 volts. Under normal operating +5 volts) with respect to ground: to ground, and shall not have a conditions it shall not be positive with (A) For 2-wire ports between the tip significant ac component.1 respect to ground (though positive lead and ground and the ring lead and (ii) Ringing signals applied by the voltages up to 60 volts may be allowed ground and PBX (or similar systems) to all classes of during brief maintenance states); (B) For 4-wire ports between the tip OPS interface leads shall comply with (iii) AC voltages are less than 42.4 lead and ground, the ring lead and requirements in paragraph (d) of this volts peak between any conductor and ground, the tip 1 lead and ground, and section. Ringing voltages shall be ground, (terminal equipment shall the ring 1 lead and ground. applied between the ring conductor and comply while other interface leads are (iii) The dc current per lead, under ground. both): short circuit conditions shall not exceed (4) Direct Inward Dialing (DID). (A) Unterminated, and 140 milliamperes. Voltages applied by the PBX (or similar (B) Individually terminated to (b) Connection of non-registered systems) to DID interface leads for ground); and, equipment to registered terminal equipment or registered protective 1 The ac component should not exceed 5 volts 2 The ac component shall not exceed 5 volts peak, circuitry.—General. Leads to, or any peak, when not otherwise controlled by § 68.308. where not otherwise controlled by § 68.308. elements having a conducting path to Federal Register / Vol. 62, No. 223 / Wednesday, November 19, 1997 / Rules and Regulations 61669 telephone connections, auxiliary leads 21.2 volts and less than (32.8 + 0.454 × shall include a current-sensitive ring or E&M leads shall: V dc) when the absolute value of the dc trip device in series with the ring lead (1) Be reasonably physically separated component is between 21.2 and 60 that will trip ringing as specified in and restrained from and be neither volts. Figure 68.306(a) in accordance with the routed in the same cable as nor use the (d) Ringing Sources. Except for class following conditions: same connector as leads or metallic A OPS interfaces, ringing sources shall (A) If the ring trip device operates as paths connecting power connections; meet all of the following restrictions: specified in Figure 68.306(a) with (2) Be reasonably physically separated (1) Ringing Signal Frequency. The R=500 ohm (and greater) no monitoring and restrained from and be neither ringing signal shall use only frequencies voltage is required; routed in the same cable as nor use whose fundamental component is equal (B) If, however, the ring trip device adjacent pins on the same connector as to or below 70 Hz. only operates as specified in Figure metallic paths to lead to nonregistered (2) Ringing Signal Voltage. The 68.306(a) with R=1500 ohm (and equipment, when specification details ringing voltage shall be less than 300 V greater) then the ringing voltage source provided to the Commission, pursuant peak-to-peak and less than 200 V peak- shall also provide a monitoring voltage to, § 68.200(g), do not show that to-ground across a resistive termination between 19 V dc and 56.5 V dc, negative interface voltages are less than non- of at least 1 megohm. with respect to ground, on the tip or hazardous voltage source limits in (3) Ringing Signal Interruption Rate. ring conductor. paragraph (c) of this section. The ringing voltage shall be interrupted (iii) If the ringing current through a (c) Non-Hazardous Voltage Source. A to create quiet intervals of at least one 500-ohm (and greater) resistor exceeds voltage source is considered a non- second (continuous) duration each 100 mA (peak-to-peak) but does not hazardous voltage source if it conforms separated by no more than 5 seconds. exceed 100 mA peak-to-peak with 1500- with the requirements of § 68.302, During the quiet intervals, the voltage to ohm (and greater) termination, the § 68.304 and paragraph (b) of this ground shall not exceed the voltage ringing voltage source shall include section, with all connections to the limits given in paragraph (a)(3)(i) of this either a ring trip device that meets the source other than primary power section. operating characteristics specified in connections treated as ‘‘telephone (4) Ringing Signal Sources. Ringing Figure 68.306(a) with 500-ohm (and connections,’’ and if such source voltage sources shall comply with the greater) resistor, or a monitoring voltage supplies voltages no greater than the following requirements: as specified in paragraph (d)(4)(ii)(B) of following under all modes of operation (i) If the ringing current through a 500 this section. and of failure: ohm(s) (and greater) resistor does not Note to paragraph (d)(4)(iii): If the (1) AC voltages less than 42.4 volts exceed 100 mA peak-to-peak, neither a operating characteristics specified in Figure peak; ring trip device nor a monitoring voltage 68.306(a) are not met with both the 500-ohm (2) DC voltages less than 60 volts; and are required. and 1500-ohm terminations, then the (3) Combined ac and dc voltages less (ii) If the ringing current through a terminal equipment under test fails (See than 42.4 volts peak when the absolute 1500 ohm (and greater) resistor exceeds Table 68.306(c)). value of the dc component is less than 100 mA peak-to-peak, the ringing source BILLING CODE 6712±01±P 61670 Federal Register / Vol. 62, No. 223 / Wednesday, November 19, 1997 / Rules and Regulations

BILLING CODE 6712±01±C Federal Register / Vol. 62, No. 223 / Wednesday, November 19, 1997 / Rules and Regulations 61671

TABLE 68.306(C).ÐSUMMARY OF RING TRIP REQUIREMENTS

Ringing current (mA p.p) Function required Section 68.306 (d)(4). R=500 R=1500 Ring trip device operates per figure ohms and ohms and Ring trip Monitor voltage 68.306(a) greater greater

(i) ...... <100 <100 Optional ...... Optional ...... Optional. (ii)(A) ...... N/A >100 Yes ...... Optional ...... Yes for both resistances. (ii)(B) ...... N/A >100 Yes ...... Yes ...... Yes for R=1500 ohms and greater. No for R=500 ohms and greater. (iii) ...... >100 <100 Either Ring-Trip device or Monitor Yes for R=500 ohms and greater, if Voltage required Ring Trip Device is used.

(e) Intentional paths to ground (as 10. Section 68.308 is revised to read voice signals delivered to a 600 ohm required by § 68.304). (1) Connections as follows: termination shall not exceed ¥13 dBm with operational paths to ground. when averaged over any 3-second Registered terminal equipment and § 68.308 Signal power limitations. interval. registered protective circuitry having an (a) General. Limits on signal power (vi) For voiceband private lines using intentional dc conducting path to earth shall be met at the interface for all 2- inband signaling in the band 2600 ± 150 ground at operational voltages that was wire network ports and, where Hz, the maximum power delivered to a excluded during the leakage current test applicable to offered services, both 600 ohm termination shall not exceed of § 68.304 shall have a dc current transmit and receive pairs of all 4-wire ¥8 dBm during the signaling mode. The source applied between the following network ports. Signal power maximum power delivered to a 600 ohm points: measurements shall be made using termination in the on-hook steady state (i) Telephone connections, including terminations as specified in each of the supervisory condition shall not exceed tip, ring, tip 1, ring 1, E&M leads and following limitations. The transmit and ¥20 dBm. The maximum power of auxiliary leads, and receive pairs for 4-wire network ports other than live voice signals delivered to (ii) Earth grounding connections. shall be measured with the pair not a 600 ohm termination during the non- under test connected to a termination signaling mode and for other inband Note to paragraphs (e)(1)(i) and (e)(1)(ii): equivalent to that specified for the pair systems shall not exceed ¥13 dBm For each test point, gradually increase the under test. Through gain limitations current from zero to 1 ampere, then maintain when averaged over any 3-second the current for one minute. The voltage apply only in the direction of interval. between (e)(2)(i) and (e)(2)(ii) of this section transmission toward the network. (2) Limitations on internal signal shall not exceed 0.1 volt at any time. (b) Voiceband metallic signal power. sources primarily intended for network Note to paragraphs (e)(2)(i) and (e)(2)(ii): (1) Limitations at the interface on control signaling, contained in voice (1) In the event there is a component or internal signal sources not intended for and data equipment. circuit in the path to ground, the requirement network control signaling: (i) For all operating conditions of shall be met between the grounded side of (i) The power of all signal energy, in registered terminal equipment and the component or circuit and the earth the 200–3995 Hz voiceband, delivered registered protective circuitry, the grounding connection. by registered terminal equipment or maximum power in the frequency band (2) Connections with protection paths to registered protective circuitry to the ground. Registered terminal equipment and below 3995 Hz delivered to a loop protective circuitry having an intentional dc appropriate loop simulator—other than simulator circuit shall not exceed the conducting path to earth ground for non-permissive data equipment or data following when averaged over any 3- protection purposes at the leakage current protective circuitry shall not exceed ¥9 second interval: test voltage that was removed 1 during the dBm when averaged over any 3 second (A) 0 dBm when used for network leakage current test of § 68.304 shall, upon its interval. control (DTMF); replacement, have a 50 or 60 Hz voltage (ii) For 2-wire and 4-wire lossless tie (B) 0 dBm when DTMF is used for source applied between the following points: trunk type interfaces, the maximum manual entry end-to-end signaling. (i) Simplexed telephone connections, power of other than live voice signals When the device is used for this including tip and ring, tip 1 and ring 1, E&M delivered to a 600-ohm termination leads and auxiliary leads, and purpose it shall not generate more than (ii) Earth grounding connections. shall not exceed ¥15 dBm when 40 DTMF digits per manual key stroke. (3) Gradually increase the voltage from averaged over any three second interval. (C) ¥9 dBm in all other cases. zero to 120 volts rms for registered terminal (iii) For OPS lines, the maximum (ii) For tie trunk applications, the equipment, or 300 volts rms for protective power of other than live voice delivered maximum power delivered to a 600 ohm circuitry, then maintain the voltage for one to an OPS line simulator circuit shall termination for registered terminal minute. The current between not exceed ¥9 dB with respect to one equipment and registered protective §§ 68.306(d)(4)(i) and 68.306(d)(4)(ii) shall milliwatt, when averaged over any 3- circuitry under all operating conditions not exceed 10 mA peak at any time. As an second interval. shall not exceed ¥4 dBm over any 3 alternative to carrying out this test on the (iv) For registered test equipment or second interval. complete equipment or device, the test may registered test circuitry the maximum (3) Registered one port and multiport be carried out separately on components, subassemblies, and simulated circuits, signal power delivered to a loop terminal equipment and protective outside the unit, provided that the test results simulator circuit shall not exceed 0 dBm circuitry with provision for through would be representative of the results of when averaged over any 3-second transmission from other terminal testing the complete unit. interval. equipment, excluding data equipment (v) For voiceband private lines using and data protective circuitry that are 1 The path to ground is reestablished when the ringdown or inband signaling the registered in accordance with leads are replaced. maximum power of other than live § 68.308(b)(4). 61672 Federal Register / Vol. 62, No. 223 / Wednesday, November 19, 1997 / Rules and Regulations

(i) Where through-transmission (i) Data circuit terminal equipment TABLE 68.308(a)ÐContinued equipment provides a dc electrical intended to operate with a programming signal to equipment connected resistor for signal level control shall not Pro- therewith (e.g., for powering of electro- exceed the programmed levels given in grammed data acoustic transducers), dc conditions Table 68.308(a). Programming resistor (Rp)* equip- shall be provided which fall within the (ii) Data circuit terminal equipment (ohms) ment sig- range of conditions provided by a loop intended to operate in the fixed loss nal power simulator circuit unless the combination loop (FLL) state shall not transmit signal output power that exceeds ¥4 dBm, in the of the through-transmission equipment 1240 ...... ¥5 dBm. and equipment connected therewith is 200—3995 Hz voiceband, when 1780 ...... ¥6 dBm. registered as a combination which averaged over any and all 3 second 2520 ...... ¥7 dBm. conforms to paragraphs (b)(1) and (b)(2) intervals. 3610 ...... ¥8 dBm. of this section. (iii) Data circuit terminal equipment 5490 ...... ¥9 dBm. shall not transmit signals from 200 to (ii) Through-transmission equipment 3995 Hz that exceed ¥9 dBm, when *Tolerance ) 1%. to which remotely connected data averaged over any and all 3 second (5) Registered one-port and multiport terminal equipment may be connected intervals. terminal equipment and protective shall not be equipped with or connected circuitry with provision for through- to either a Universal or Programmed TABLE 68.308(a) transmission from ports to other Data Jack used in data configurations. equipment which is separately (See paragraph (b)(4) of this section and Pro- registered for the public switched § 68.502(e)). grammed network, or ports to other network data (4) Registered data circuit terminal Programming resistor (Rp)* equip- interfaces. equipment shall be capable of operation (ohms) ment sig- (i) Registered terminal equipment and in at least one of the states discussed in nal power registered protective circuitry shall have paragraphs (b)(1)(i), (b)(1)(ii) or output no adjustments that will allow net (b)(1)(iii) of this section. The output Short ...... 0 dBm. amplification to occur in either power level of the data circuit terminal 150 ...... ¥1 dBm. direction of transmission in the through- equipment shall not be alterable, by the 336 ...... ¥2 dBm. transmission path within the 200–3995 customer, to levels which exceed the 569 ...... ¥3 dBm. Hz voiceband that will exceed the signal power limits specified herein. 866 ...... ¥4 dBm. following:

TABLE 68.308(b).ÐALLOWABLE NET AMPLIFICATION BETWEEN PORTS (A)(C)(D)(E)

To Tie trunk type ports Public Integrated OPS ports switched HCC digi- Subrate Subrate services (2-wire) network tal PBX± 2 1.544 1.544 From (E) ¤4-wire Mbps sat- Mbps tan- trunk (B) ports CO 4-wire ellite 4W dem 4W (2-wire)

2¤4-Wire Tie ...... 0 dB 3 dB 3 dB 3 dB 6 dB Subrate 1.544 Mbps Satellite 4W Tie ...... 0 dB 3 dB 3 dB 6 dB Subrate 1.544 Mbps Tandem 4W Tie ...... ¥3 dB 0 dB 0 dB 0 dB 3 dB Integrated Services Trunk ...... ¥3 dB 0 dB 0 dB 0 dB 3 dB RTE Digital ...... 0 dB 0 dB 0 dB 0 dB 3 dB 3 dB 0 dB. RTE (B) PSTN/OPS ...... ¥3 dB ¥3 dB ¥3 dB ¥3 dB 0 dB 0 dB ¥3 dB OPS (B) (2-Wire) ...... ¥2 dB 1 dB 1 dB 1 dB 4 dB 4 dB 1 dB. Public Switched Network (2-Wire) ...... 3 dB 3 dB HCC Digital PBX±CO (4-Wire) ...... 3 dB

(A) The source impedance for all (D) Registered terminal equipment ensure that the absolute signal power measurements shall be 600 ohms. All and registered protective circuitry may levels specified in this section, for each ports shall be terminated in appropriate have net amplification exceeding the telephone network interface type to be loop or private line channel simulator limitations of this subsection provided connected, are not exceeded. circuits or 600 ohm terminations. that, for each network interface type to (G) Registered terminal equipment or (B) These ports are for 2-wire on- be connected, the absolute signal power protective circuitry with the capability premises station ports to separately levels specified in this section are not for through transmission from registered terminal equipment. exceeded. voiceband private line channels or (C) These through gain limitations are (E) The indicated gain is in the voiceband metallic private line channels applicable to multiport systems where direction that results when moving from to other telephone network interfaces channels are not derived by time or the horizontal entry toward the vertical shall assure, for each telephone network frequency compression methods. entry. interface type to be connected, that Terminal equipment employing such (F) Registered terminal equipment or signals with energy in the 2450 to 2750 compression techniques shall assure protective circuitry with the capability Hz band are not through transmitted that equivalent compensation for for through transmission from unless there is at least an equal amount through gain parameters is voiceband private line channels or of energy in the 800 to 2450 Hz band demonstrated in the registration voiceband metallic channels to other within 20 milliseconds of application of application. telephone network interfaces shall signal. Federal Register / Vol. 62, No. 223 / Wednesday, November 19, 1997 / Rules and Regulations 61673

(ii) The insertion loss in through dB (maximum loss in the 800 to 2450 conditions of registered terminal connection paths for any frequency in Hz band minus minimum loss in the equipment and registered protective the 800 to 2450 Hz band shall not 2450 to 2750 Hz band plus 1 dB). circuitry, the following limitations shall exceed the loss at any frequency in the (6) For tie trunk interfaces— be met: Limitation on idle circuit stability 2450 to 2750 Hz band by more than 1 (i) For the two-wire interface: parameters. For idle state operating

 log(f /200 )  log(2 . 5 )  9− 3 dB; for 200 Hz ≤ f ≤ 500 Hz RL ≥   6dB; for 500 Hz≤ f ≤ 3200 Hz  (ii) For the four-wire lossless interface:

 log(f /200 )  log(2 . 5 ) 10− 4 dB; for 200 Hz ≤ f ≤ 500 Hz ≥ t1f   6dB; for 500 Hz≤ f ≤ 3200 Hz  > t1r 40 dB ≥ RLi, RL o 3 dB

Note: The following definitions apply to Ii (1) Power resulting from internal return loss requirements: t1∆ 20 log r 10 I signal sources contained in registered RL the return loss of 2-wire terminal r protective circuitry and registered equipment at the interface with respect Where Ii is the current sent into the transmit terminal equipment (voice and data), µ to 600 ohms+2.16 F (i.e., Zref=600 port and Ir is the current received at the not intended for network control ohms+2.16 µF). receive port terminated at 600 ohms. signaling. For all operating conditions of Note, the source impedance of Ii is 600 registered terminal equipment and ohms. + registered protective circuitry that ZZPBX ref (7) Registered terminal equipment and RL ∆ 20 log incorporate signal sources other than 10 ZZ− registered protective circuitry shall sources intended for network control PBX ref provide the following range of dc signaling, the maximum power Rli the terminal equipment input (receive) conditions to off-premises station (OPS) delivered by such sources in the 3995– port return loss with respect to 600 ohms lines. 4005 Hz band to an appropriate (i.e., Zref=600 ohms). (i) DC voltages applied to the OPS simulator circuit, shall be 18 dB below interface for supervisory purposes and maximum permitted power specified in paragraph (b) of this section for the ZZ+ during network control signaling shall RL ∆ 20 log PBX() input ref meet the limits specified in voiceband. i 10 − (2) Terminal equipment with ZZPBX() input ref § 68.306(a)(3)(i). (ii) DC voltages applied to the OPS provision of through-transmission from RLo the terminal equipment output interface during the talking state shall other equipment. The loss in any (transmit) port return loss with respect to through-transmission path of registered 600 ohms (i.e., Zref=600 ohms). meet the following requirements: (A) The maximum open circuit terminal equipment and registered voltage across the tip (T(OPS)) and ring protective circuitry at any frequency in + the 600 to 4000 Hz band shall not ZZPBX() output ref (R(OPS)) leads for all classes shall not RL ∆ 20 log exceed 56.5 volts, and exceed, by more than 3 dB, the loss at o 10 − any frequency in the 3995 to 4005 Hz ZZPBX() output ref (B) Except for class A OPS interfaces, band, when measured into an the maximum dc current into a short tl the transducer loss between the receive appropriate simulator circuit from a and transmit ports of the 4-wire PBX. tlf circuit across tip (T(OPS)) and ring source that appears as 600 ohms across is the transducer loss in the forward (R(OPS)) leads shall not exceed 140 mA. tip and ring. direction from the receive port to the (8) For connections to 1.544 Mbps transmit port of the PBX. (d) Longitudinal voltage at digital services, the permissible code frequencies below 4 kHz. The weighted words for unequipped Mu-255 encoded rms voltage 3 averaged over 100 subrate channels are limited to those milliseconds that is resultant of all of ∆ Ii corresponding to signals of either t1f 20 log10 the component longitudinal voltages in I r polarity, of magnitude equal to or less the 100 Hz to 4 kHz band after than X48, where code word, XN is Where Ii is the current sent into the receive weighting according to the transfer derived by: port and Ir is the current received at the transmit port terminated at 600 ohms. XN = (255 – N) base 2 3 Average magnitudes may be used for signals that have peak-to-rms ratios of 20 dB and less. The rms tlr is the transducer loss in the reverse ¥XN = (127 – N) base 2 limitations must be used instead of average values direction, from the transmit port to the (c) Signal power in the 3995–4005 Hz receive port of the PBX. if the peak-to-rms ratio of the interfering signal frequency band. exceeds this value. 61674 Federal Register / Vol. 62, No. 223 / Wednesday, November 19, 1997 / Rules and Regulations function of f/4000 where f is the (e) Voltage in the 4 kHz to 6 MHZ this section shall not exceed the frequency in Hertz, shall not exceed the frequency range-general case—2-wire maximum indicated below. For maximum indicated under the and 4-wire lossless interface (except paragraphs(e)(1) and (e)(2)(i) of this conditions stated in paragraph (g) of this LADC). Except as noted, rms voltage as section, ‘‘f’’ is the center frequency in section. averaged over 100 milliseconds at the kHz of each of the possible 8-kHz bands telephone connections of registered beginning at 8 kHz. Maximum terminal equipment and registered (1) Metallic Voltage. 4 kHz to 270 Frequency range weighted Impedance rms volt- protective circuitry in all of the possible kHz: age 8 kHz bands within the indicated frequency range and under the 100 Hz to 4 kHz ...... ¥30 dBV 500 ohms. conditions specified in paragraph (g) of

Metallic Center frequency (f) of 8 kHz band Max voltage in all 8 kHz bands terminating impedance

8 kHz to 12 khz ...... ¥(6.4 + 12.6 log f) dBV ...... 300 ohms. 12 kHz to 90 kHz ...... 135 ohms. 90 kHz to 266 kHz ...... (23±40 log f) dBV ¥55 ...... 135 ohms.

(2) Longitudinal voltage. (i) 4 kHz to 270 kHz. (ii) 270 kHz to 6 MHZ. The rms value of the longitudinal voltage components in the frequency range of 270 kHz to 6 MHZ, shall not exceed ¥30 dBV. This limitation applies with a longitudinal termination having an impedance of 90 ohms.

Longitu- dinal termi- Center frequency (f) of 8 kHz band Max voltage in all 8 kHz bands nating im- pedance

8 kHz to 12 kHz ...... ¥(18.4 + 20 log f) dBV ...... 500 ohms 12 kHz to 42 kHz ...... 90 ohms 42 kHz to 266 kHz (2¥40 log f) dBV ¥62 dBV ...... 90 ohms

(f) LADC interface. The metallic all the component metallic voltages in center frequencies and under the voltage shall comply with the general the band after weighting according to conditions specified in paragraph (g) of requirements in paragraph (f)(1) of this the transfer function of f/4000 where f this section shall not exceed the section as well as the additional is the frequency in Hertz, shall not maximum indicated below: requirements specified in paragraphs exceed the maximum indicated below (f)(2) and (f)(3) of this section. The under the conditions stated in Max volt- requirements apply under the paragraph (g) of this section. Center freq (f) of all 100-Hz bands age in all conditions specified in paragraph (g) of 100-Hz bands this section. Terminal equipment for Maximum Frequency range voltage which the magnitude of the source and/ 4.05 kHz to 4.6 kHz ...... 0.5 dBV. or terminating impedance exceeds 300 10 Hz to 4 kHz ...... +3 dBV. 4.60 kHz to 5.45 kHz ...... (59.2Ð90 ohms, at any frequency in the range of log f) 100 kHz to 6 MHz, at which the signal (ii) RMS Voltage in 100 Hz bands in dBV. (transmitted and/or received) has the frequency range 0.7 kHz to 4 kHz. 5.45 kHz to 59.12 kHz ...... (7.6Ð20 significant power, shall be deemed not The rms metallic voltage averaged over log f) to comply with these requirements. A dBV. 100 milliseconds in the 100-Hz bands 59.12 kHz to 266.00 kHz ...... (43.1Ð40 signal is considered to have ‘‘significant having center frequencies between 750 power’’ at a given frequency if that log f) Hz and 3950 Hz shall not exceed the dBV. frequency is contained in a designated maximum indicated below. set of frequency bands that collectively have the property that the rms voltage Where f = center frequency in kHz of each Max volt- of the possible 100 Hz bands. of the signal components in those bands Center freq (f) of 100-Hz bands age in all is at least 90% of the rms voltage of the 100-Hz bands (ii) 8-kHz bands over frequency range total signal. The designated set of of 4 kHz to 270 kHz. The rms voltage frequency bands must be used in testing 750 to 3950 Hz ...... ¥6 dBV. as averaged over 100 milliseconds in all all frequencies. of the possible 8-kHz bands between 4 (1) Metallic voltages—frequencies (2) Metallic Voltages—frequencies kHz and 270 kHz for the indicated range below 4 kHz. above 4 kHz—LADC interface. of center frequencies and under the (i) Weighted rms voltage in the 10 Hz (i) 100-Hz bands over frequency range conditions specified in paragraph (g) of to 4 kHz frequency band. The weighted of 4 kHz to 270 kHz. The rms voltage this section shall not exceed the rms metallic voltage in the frequency as averaged over 100 milliseconds in all maximum indicated below: band from 10 Hz to 4 kHz, averaged over possible 100-Hz bands between 4 kHz 100 milliseconds that is the resultant of and 270 kHz for the indicated range of Federal Register / Vol. 62, No. 223 / Wednesday, November 19, 1997 / Rules and Regulations 61675

Center freq (f) of 8- Max voltage in all 8- (iv) Peak Voltage. The total peak (i) Frequencies below 4 kHz. The kHz bands kHz bands voltage for all frequency components in weighted rms voltage in the frequency the 4 kHz to 6 MHZ band shall not band from 10 Hz to 4 kHz,averaged over 8 kHz to 120 kHz ...... (17.6Ð20 log f) dBV. exceed 4.0 volts. 100 milliseconds is the resultant of all 120 kHz to 266 kHz .. (59.2Ð40 log f) dBV. (3) Longitudinal voltage. Frequencies the component longitudinal voltages in the band after weighing according to the below 4kHz: The weighted rms voltage Where f = center frequency in kHz of each transfer function of f/4000, where f is in the frequency band from 10 Hz to 4 of the possible 8-kHz bands. the frequency in Hz, shall not exceed kHz,averaged over 100 milliseconds is the maximum indicated below under (iii) RMS Voltage at frequencies above the resultant of all the component 270 kHz. The rms value of the metallic the conditions stated in paragraph (g) of longitudinal voltages in the band after this section. voltage components in the frequency weighing according to the transfer range of 270 kHz to 6 MHZ, averaged function of f/4000, where f is the Frequency range Maximum over 2 microseconds, shall not exceed frequency in Hz, shall not exceed the RMS voltage -15 dBV. This limitation applies with a maximum indicated below under the metallic termination having an conditions stated in paragraph (g) of this 10 Hz±4 kHz ...... ¥37 dBV. impedance of 135 ohms. section. (ii) 4 kHz to 270 kHz.

Longitu- dinal termi- Ctr freq (f) of 8 kHz bands Max voltage in all 8 kHz bands nating im- pedance

8 to 12 kHz ...... ¥(18.4+20 log f) dBV ...... 500 ohms. 12 to 42 kHz ...... (3±40 log f) dBV ...... 90 ohms 42 to 266 kHz ...... ¥62 dBV ...... 90 ohms. Where f = center frequency in kHz of each of the possible 8-kHz bands. (iii) 270 kHz to 6 MHZ. The rms value of the longitudinal voltage components in the frequency range of 270 kHz to 6 MHZ shall, averaged over 2 microseconds, not exceed ¥30 dBV. This limitation applies with a longitudinal termination having an impedance of 90 ohms. (d) Longitudinal voltage at frequencies below 4 kHz. The weighted rms voltage 4 averaged over 100 milliseconds that is resultant of all of the component longitudinal voltages in the 100 Hz to 4 kHz band after weighting according to the transfer function of f/4000 where f is the frequency in Hertz, shall not exceed the maximum indicated under the conditions stated in § 68.308(g).

Frequency range Maximum weighted rms voltage Impedance

100 Hz to 4 kHz ...... ¥30 dBV ...... 500 ohms.

(e) Voltage in the 4 kHz to 6 MHZ frequency range—general case—2-wire and 4-wire lossless interface (except LADC). Except as noted, rms voltage as averaged over 100 milliseconds at the telephone connections of registered terminal equipment and registered protective circuitry in all of the possible 8 kHz bands within the indicated frequency range and under the conditions specified in paragraph (g) of this section shall not exceed the maximum indicated below. For paragraph (e)(1) and paragraph (e)(2)(i) of this section, ‘‘f’’ is the center frequency in kHz of each of the possible 8-kHz bands beginning at 8 kHz. (1) Metallic Voltage. 4 kHz to 270 kHz:

Metallic Center frequency (f) of 8 kHz band Max voltage in all 8 kHz bands terminating impedance

8 kHz to 12 kHz ...... ¥(6.4 + 12.6 log f) dBV ...... 300 ohms. 12 kHz to 90 kHz ...... (23±40 log f) dBV ...... 135 ohms. 90 kHz to 266 kHz ...... ¥55 dBV ...... 135 ohms.

(2) Longitudinal voltage (i) 4 kHz to 270 kHz. (ii) 270 kHz to 6 MHZ. The rms value of the longitudinal voltage components in the frequency range of 270 kHz to 6 MHZ, shall not exceed ¥30 dBV. This limitation applies with a longitudinal termination having an impedance of 90 ohms.

Longitu- dinal termi- Center frequency (f) of 8kHz band Max voltage in all 8 kHz bands nating im- pedance

8 kHz to 12 kHz ...... ¥(18.4 + 20 log f) dBV ...... 500 ohms. 12 kHz to 42 kHz ...... (2±40 log f) dBV ...... 90 ohms.

4 Average magnitudes may be used for signals that have peak-to-rms ratios of 20 dB and less. The rms limitations must be used instead of average values if the peak-to-rms ratio of the interfering signal exceeds this value. 61676 Federal Register / Vol. 62, No. 223 / Wednesday, November 19, 1997 / Rules and Regulations

Longitu- dinal termi- Center frequency (f) of 8kHz band Max voltage in all 8 kHz bands nating im- pedance

42 kHz to 266 kHz ...... ¥62 dBV ...... 90 ohms.

(f) LADC interface. The metallic frequency bands must be used in testing The rms metallic voltage averaged over voltage shall comply with the general all frequencies. 100 milliseconds in the 100-Hz bands requirements in paragraph (f)(1) of this (1) Metallic voltages—frequencies having center frequencies between 750 section as well as the additional below 4 kHz. Hz and 3950 Hz shall not exceed the requirements specified in paragraphs (i) Weighted rms voltage in the 10 Hz maximum indicated below. (f)(2) and (3) of this section as stated. to 4 kHz frequency band. The weighted The requirements apply under the rms metallic voltage in the frequency Max volt- conditions specified in § 68.308(g). age in all band from 10 Hz to 4 kHz, averaged over Center freq (f) of 100-Hz bands 100-Hz Terminal equipment for which the 100 milliseconds that is the resultant of bands magnitude of the source and/or all the component metallic voltages in terminating impedance exceeds 300 the band after weighting according to 750 to 3950 Hz ...... ¥6 dBV. Ohms, at any frequency in the range of the transfer function of f/4000 where f 100 kHz to 6 MHz, at which the signal is the frequency in Hertz, shall not (transmitted and/or received) has (2) Metallic Voltages—frequencies exceed the maximum indicated below above 4 kHz—LADC interface. significant power, shall be deemed not under the conditions stated in (i) 100-Hz bands over frequency range to comply with these requirements. A paragraph (g). signal is considered to have ‘‘significant of 4 kHz to 270 kHz. The rms voltage power’’ at a given frequency if that Maximum as averaged over 100 milliseconds in all frequency is contained in a designated Frequency range voltage possible 100-Hz bands between 4 kHz set of frequency bands that collectively and 270 kHz for the indicated range of have the property that the rms voltage 10 Hz to 4 kHz ...... +3 dBV. center frequencies and under the of the signal components in those bands conditions specified in § 68.308(g) shall is at least 90% of the rms voltage of the (ii) RMS Voltage in 100 Hz bands in not exceed the maximum indicated total signal. The designated set of the frequency range 0.7 kHz to 4 kHz. below:

Max voltage in all 100- Center freq (f) of all 100-Hz bands Hz bands

4,05 kHz to 4.6 kHz ...... 0.5 dBV. 4.60 kHz to 5.45 kHz ...... (59.2±90 log f) dBV. 5.45 kHz to 59.12 kHz ...... (7.6±20 log f) dBV. 59.12 kHz to 266.00 kHz ...... (43.1±40 log f) dBV. Where f = center frequency in kHz of each of the possible 100 Hz bands. (ii) 8-kHz bands over frequency range of 4 kHz to 270 kHz. The rms voltage as averaged over 100 milliseconds in all of the possible 8-kHz bands between 4 kHz and 270 kHz for the indicated range of center frequencies and under the conditions specified in § 68.308(g) shall not exceed the maximum indicated below:

Max voltage in all 8- Center freq (f) of 8-kHz bands kHz bands

8 kHz to 120 kHz ...... (17.6±20 log f) dBV. 120 kHz to 266 kHz ...... (59.2±40 log f) dBV. Where f = center frequency in kHz of each of the possible 8-kHz bands. (iii) RMS Voltage at frequencies above 270 kHz. The rms value of the metallic voltage components in the frequency range of 270 kHz to 6 MHZ, averaged over 2 microseconds, shall not exceed ¥15 dBV. This limitation applies with a metallic termination having an impedance of 135 ohms. (iv) Peak Voltage. The total peak voltage for all frequency components in the 4 kHz to 6 MHZ band shall not exceed 4.0 volts. (3) Longitudinal voltage. (i) Frequencies below 4kHz. The weighted rms voltage in the frequency band from 10 Hz to 4kHz, averaged over 100 milliseconds is the resultant of all the component longitudinal voltages in the band after weighing according to the transfer function of f/4000, where f is the frequency in Hz, shall not exceed the maximum indicated below under the conditions stated in § 68.308(g).

Maximum Frequency range RMS volt- age

10 Hz±4 kHz ...... ¥37 dBV.

(ii) 4 kHz to 270 kHz Federal Register / Vol. 62, No. 223 / Wednesday, November 19, 1997 / Rules and Regulations 61677

Longitu- dinal termi- Center freq (f) of 8-kHz bands Max voltage in all 8-kHz bands nating Voltage

8 kHz to 12 kHz ...... ¥(18.4 + 20 log f) dBV ...... 500 ohms. 12 kHz to 42 kHz ...... (3±20 log f) dBV ...... 90 ohms. 42 kHz to 266 kHz ...... ¥62 dBV ...... 90 ohms Where f = center frequency in kHz of each of the possible 8-kHz bands. (iii) 270 kHz to 6 MHZ. The rms value of the longitudinal voltage components in the frequency range of 270 kHz to 6 MHZ shall, averaged over 2 microseconds, not exceed -30 dBV. This limitation applies with a longitudinal termination having an impedance of 90 ohms.

BILLING CODE 6712±01±P 61678 Federal Register / Vol. 62, No. 223 / Wednesday, November 19, 1997 / Rules and Regulations

BILLING CODE 6712±01±C Federal Register / Vol. 62, No. 223 / Wednesday, November 19, 1997 / Rules and Regulations 61679

(g) Requirements in paragraphs (d), to comply with the requirements in (ii) Template for maximum output (e) and (f) of this section apply under paragraph (f)(1)(ii) of this section pulse. When applied to a 135 Ohm the following conditions: (1) All provided that, for automatically resistor, the instantaneous amplitude of registered terminal equipment, except originated DTMF signals, the duty cycle the largest isolated output pulse equipment to be used on LADC, and all is less than 50 percent. obtainable from the registered terminal registered protective circuitry must (6) LADC registered terminal equipment shall not exceed by more comply with the limitations when equipment shall comply with all than 10% the instantaneous voltage connected to a termination equivalent to applicable requirements, except those defined by a template obtained as the circuit depicted in Figure 68.308(a) specified in paragraphs (f)(1) (i) and (ii) follows: The limiting pulse template and when placed in all operating states of this section, during the transmission shall be determined by passing an ideal of the equipment except during network of each possible data signal sequence of 50% duty cycle rectangular pulse with control signaling. LADC registered any length. For compliance with the amplitude/pulse rate characteristics terminal equipment must comply with paragraph (f)(3)(i) of this section, the defined in Table 68.308(c) through a the metallic voltage limitations when limitation applies to the rms voltage single real pole low pass filter having a connected to circuits of § 68.3(i) and averaged as follows: cutoff frequency in Hertz equal to 1.3 must comply with the longitudinal (i) For digital signals, baseband or times the bit rate. For bit rates of 2.4, limitations when connected to circuits modulated on a carrier, for which there 3.2, 4.8, 6.4, 9.6 and 12.8 kbps, the of Figure 68.308(a), as indicated. are defined signal element intervals, the filtered pulses shall also be passed (2) All registered terminal equipment rms voltage is averaged over each such through a filter providing the additional and registered protective circuitry must interval. Where multiple carriers are attenuation in Table 68.308(d). comply with the limitations in the off- involved, the voltage is the power sum hook state over the range of loop of the rms voltages for the signal TABLE 68.308(c).ÐDRIVING PULSE currents that would flow with the element intervals for each carrier. AMPLITUDE equipment connected to an appropriate (ii) For baseband analog signals, the simulator circuit. rms voltage is averaged over each period Line rate User data rate Amplitude (3) Registered terminal equipment and (cycle) of the highest frequency of the (kbps) (R) (kbps) (A) (volts) registered protective circuitry with signal (3 dB point on the spectrum). For analog signals that are modulated on a 2.4 ...... 2.4 ...... 1.66 provision for through-transmission from 1 carrier (whether or not the carrier is 3.2 ...... 2.4 with SC .... 1.66 other equipments shall comply with the 4.8 ...... 4.8 ...... 1.66 limitations with a 1000 Hz tone applied suppressed), it is averaged over each 6.4 ...... 4.8 with SC 1 .... 1.66 from a 600-ohm source (or, if period (cycle) of the carrier. Where 9.6 ...... 9.6 ...... 0.83 appropriate a source which reflects a multiple carriers are involved, the 12.8 ...... 9.6 with SC 1 .... 0.83 600-ohm impedance across tip and ring) voltage is the power sum of the rms 19.2 ...... 19.2 ...... 1.66 at the maximum level that would be voltage for each carrier. 25.6 ...... 19.2 with SC 1 .. 1.66 applied during normal operation. (iii) For signals other than the types 38.4 ...... 38.4 ...... 1.66 Registered protective circuitry for data defined in paragraphs (g)(6)(i) and (ii) of 51.2 ...... 38.4 with SC 1 .. 1.66 shall also comply with the tone level 10 this section, the peak amplitude of the 56 ...... 56 ...... 1.66 72 ...... 56 with SC 1 ..... 1.66 dB higher than the overload point. signal must not exceed +1 dBV. 72 ...... 64 ...... 1.66 (4) For registered terminal equipment (7) Equipment shall comply with the or registered protective circuitry with requirements in paragraphs (f)(1)(i) and 1 SC: Secondary Channel. non-registered signal source input, such (ii) of this section, during any data as music on hold, the out of band signal sequence that may be transmitted TABLE 68.308(d).ÐMINIMUM power requirements shall be met using during normal use with a probability ADDITIONAL ATTENUATION an input signal with a frequency range greater than 0.001. If the sequences of 200 Hz to 20 kHz and the level set transmitted by the equipment are Attenu- Attenu- at the overload point. application dependent, the user ation in ation in frequency frequency (5) Except during the transmission of instruction material shall include a Line rate (R) (kbps) band 24± band 72± ringing (§ 68.306(d)) and Dual Tone statement of any limitations assumed in 32 kHz 80 kHz Multi-frequency (DTMF) signals, LADC demonstrating compliance of the (dB) (dB) registered terminal equipment shall equipment. comply with all requirements in all (8) In addition to the conditions 2.4 ...... 5 1 operating states and with loop current 3.2 ...... 5 1 specified in paragraph (g)(5) of this 4.8 ...... 13 9 that may be drawn for such purposes as section, LADC registered terminal 6.4 ...... 13 9 loop back signaling. The requirements equipment which operates in one or 9.6 ...... 17 8 in paragraph (f)(1) of this section except more modes as a receiver, shall comply 12.8 ...... 17 8 in paragraphs (f)(1)(i) and (f)(1)(ii) of with requirements in paragraph (f)(3) of Note: The attenuation indicated may be re- this section also apply during the this section with a tone at all duced at any frequency within the band by the application of ringing. The requirement frequencies in the range of potential weighting curve of Table 68.308(e). Minimum in paragraph (d) and the requirements in received signals and at the maximum rejection is never less than 0 dB; i.e., the paragraphs (f)(1)(i) and (f)(1)(ii) of this power which may be received. weight does not justify gain over the system section apply during ringing for (h) Interference limitations for without added attenuation. frequencies above 300 Hz and with the transmission of bipolar signals over maximum voltage limits raised by 10 digital services.—(1) Limitations on TABLE 68.308(e).ÐATTENUATION dB. DTMF signals which are used for Terminal Equipment Connection to CURVE the transmission of alphanumeric Subrate Digital Services—(i) Pulse Attenu- information and which comply with the repetition rate. The pulse repetition rate 24±32 kHz band 72±80 ation fac- requirements in paragraph (f)(1)(i) and shall be synchronous with 2.4, 3.2, 4.8, kHz band tor dB in paragraphs (f)(2) or (f)(3) of this 6.4, 9.6, 12.8, 19.2, 25.6, 38.4, 56.0, or section as applicable, shall be deemed 72 kbps per second. 24 ...... 72 ¥18 61680 Federal Register / Vol. 62, No. 223 / Wednesday, November 19, 1997 / Rules and Regulations

TABLE 68.308(e).ÐATTENUATION dBm when averaged over any 3-second instantaneous amplitude of the output CURVEÐContinued time interval. The maximum equivalent from the registered terminal equipment power of encoded analog signals as obtained when Option B is 72±80 Attenu- derived by a zero level decoder test implemented shall fall within the pulse 24±32 kHz band kHz band ation fac- configuration for signals intended for template obtained by passing the tor dB network control signaling shall not bounding pulses permitted by Figure 25 ...... 73 ¥3 exceed ¥3 dBm when averaged over 68.308(b) through the following transfer 26 ...... 74 ¥1 any 3-second interval. function. 27 ...... 75 0 (2) Limitations on Terminal 2 + + 29 ...... 76 0 Equipment Connecting to 1.544 Mbps Vout = n2 S n1 S n 0 29 ...... 77 0 Digital Services.—(i) Pulse repetition V d S3 + d S2 + d S + d 30 ...... 78 ¥1 rate: The free running line rate of the in 3 2 1 0 31 ...... 79 ¥3 transmit signal shall be 1.544 Mbps with where: 32 ...... 80 ¥18 ± ± 6 a tolerance of 32 ppm., i.e., 50 bps. n0=1.6049×10 × ¥1 (iii) Average power. The average (ii) Output pulse templates. The n1=7.9861 10 registered terminal equipment shall be ¥8 output power when a random signal n2=9.2404×10 capable of optionally delivering three 6 sequence, (0) or (1) equiprobable in each d0=2.1612×10 pulse interval, is being produced as sizes of output pulses. The output pulse d1=1.7223 measured across a 135 ohm resistance option shall be selectable at the time of × ¥7 shall not exceed 0 dBm for 9.6 and 12.8 installation. d2=4.575 10 ¥14 kbps or +6 dBm for all other rates (A) Option A output pulse. When d3=3.8307×10 shown in Table 68.308(b). applied to a 100 ohm resistor, the S=j 2 Π f (iv) Encoded analog content. If instantaneous amplitude of the largest f=frequency (Hertz) registered terminal equipment output pulse obtainable from the connecting to subrate services contains registered terminal equipment shall fall (C) Option C output pulse. When an analog-to-digital converter, or within the pulse template illustrated in applied to a 100-ohm resistor, the generates signals directly in digital form Figure 68.308b). The mask may be instantaneous amplitude of the output that are intended for eventual positioned horizontally as needed to from the registered terminal equipment conversion into voiceband analog encompass the pulse, and the amplitude obtained when Option C is signals, the encoded analog content of of the normalized mask may be implemented shall fall within the pulse the digital signal must be limited. The uniformity scaled to encompass the template obtained by passing the pulses maximum equivalent power of encoded pulse. The baseline of the mask shall obtained in Option B through the analog signals for other than live voice coincide with the pulse baseline. transfer function in Option B a second as derived by a zero level decoder test (B) Option B output pulse. When time. configuration shall not exceed ¥12 applied to a 100-ohm resistor, the BILLING CODE 6712±01±P Federal Register / Vol. 62, No. 223 / Wednesday, November 19, 1997 / Rules and Regulations 61681

BILLING CODE 6712±01±C

MAXIMUM CURVE

Nano-seconds ¥500 ¥250 ¥175 ¥175 ¥75 0 175 220 500 750

Normalized Amplitude ...... 05 .05 .8 1.2 1.2 1.05 1.05 ¥.05 .05 .05

MINIMUM CURVE

Nano-seconds ¥500 ¥150 ¥150 ¥100 0 100 150 150 300 396 600 750

Normalized Amplitude ...... ¥.05 ¥.05 .5 .9 .95 .9 .5 ¥.45 ¥.45 ¥.26 ¥.05 ¥.05

Figure 68.308(b) (Ref. EIA/TIA 547–1989)—Isolated Pulse Template and Corner Points for 1.544 Mbps Equipment Note to Figure 68.308(b): The pulse amplitude is 2.4 to 3.6 V. (Use constant scaling factor to fit normalized template.)

(iii) Adjustment of signal voltage. The Terminal equipment below that in a 3 kHz band about 772 signal voltage at the network interface Cable loss at 772 kHz kHz. must be limited so that the range of (dBV) Output Loss at (v) Encoded Analog Content. If pulse 772 kHz pulse amplitudes received at the first registered terminal equipment telephone company repeater is 15 to 22 ...... Option A .. 0 connected to 1.544 Mbps digital service controlled to ±4 dB. This limitation is 7.5 to 15 ...... Option B .. 7.5 contains an analog-to-digital converter, achieved by implementing the 0 to 7.5 ...... Option C .. 15 or generates signals directly in digital appropriate output pulse option as a form that are intended for eventual function of telephone company cable (iv) Output power. The output power conversion into voiceband analog loss as specified at time of installation. in a 3 kHz band about 772 kHz when an signals, the encoded analog content of all ones signal sequence is being the subrate channels within the 1.544 produced as measured across a 100 ohm Mbps signal must be limited. The terminating resistance shall not exceed maximum equivalent power of encoded +19 dBm. The power in a 3 kHz band analog signals for other than live voice about 1.544 MHz shall be at least 25 dB that are not intended for network 61682 Federal Register / Vol. 62, No. 223 / Wednesday, November 19, 1997 / Rules and Regulations

control signaling as derived by a zero (1) Where eL is the longitudinal values of dc loop current that the port level decoder test configuration shall voltage produced across a longitudinal under test is capable of drawing when not exceed ¥12 dBm when averaged termination Z1 and eM is the metallic attached to the appropriate loop over any 3-second time interval. The voltage across the tip-ring or tip 1 and simulator circuit (See § 68.3). An maximum equivalent power of encoded ring 1 interface of the input port when illustrative test circuit that satisfies the analog signals as derived by a zero level a voltage (at any frequency between f1 above conditions is shown in Figure decoder test configuration for signals and

TABLE 68.310(a)

Analog 1.544 Mbps voiceband Subrate digital digital

Longitudinal TerminationÐZl ...... 500 ohms ...... See Table 310(b) ...... 90 ohms. Metallic Source ImpedanceÐZ0 ...... 600 ohms ...... 135 ohms ...... 100 ohms. Lower FrequencyÐf1 ...... 200 Hz ...... 200 Hz ...... 10 kHz. 1 Upper FrequencyÐf2 ...... 4 kHz ...... ( ) 1.544 MHz. Metallic Voltage for TestÐE ...... 0.775 V ...... 0.367 V ...... 0.316 V. 1 The upper frequency equals the digital line rate for the subrate service under test (See Table 68.310(b)).

(b) Analog voiceband equipment. All shall be met with either terminal of the terminated in their appropriate registered analog voiceband equipment interface to other equipment connected networks, as will be identified below, shall be tested in the off-hook state. The to earth ground. The interface to other and when interface connections other minimum transverse balance equipment shall be terminated in an than the ports are terminated in circuits requirement in the off-hook state shall impedance that will be reflected to the appropriate to that interface. The be 40 dB, throughout the range of telephone connection as 600 Ohms in minimum transverse balance frequencies specified in Table 68.310(a). the off-hook state of the registered coefficients shall also be satisfied for all For some categories of equipment, protective circuit, and the interface values of dc loop current that the additional requirements also apply to should not be terminated in the on-hook registered equipment is capable of the on-hook state. When both off-hook state. Figure 68.310(b) shows the drawing through each of its ports when and on-hook requirements apply, they interface of the protective circuitry these ports are attached to the loop are: being tested and the required simulator circuit specified in these arrangement at the interface to other rules. The termination for all ports other State Frequency (f) Balance equipment. than the particular one whose transverse (4) For analog registered protective balance coefficient is being measured Off-hook .... 200 Hz : f : 4000 Hz 40 dB. On-hook .... 200 Hz : f : 1000 Hz 60 dB. circuitry with ground-start and reverse- shall have a metallic impedance of 600 On-hook .... 1000 Hz : f : 4000 40 dB. battery signaling only off-hook ohms. Hz. requirements apply. Criteria shall be (6) For analog multi-port equipment met with either terminal of the interface with ground-start and reverse-battery (1) For analog one-port 2-wire to other equipment connected to earth signaling, only off-hook requirements terminal equipment with loop-start, ground. The interface to other apply. Criteria shall be satisfied for all ringdown, or inband signaling or for equipment shall be terminated in an ports when all ports not under test are voiceband metallic channel impedance that will be reflected to the terminated in their appropriate applications, both off-hook and on-hook telephone connection as 600 ohms in networks as will be identified below, requirements apply. the off-hook state of the registered and when interface connections other (2) For analog one port equipment protective circuit. Figure 68.310(b) than the ports are terminated in circuits with ground-start and reverse-battery shows the interface of the protective appropriate to that interface. The signaling only off-hook requirements circuitry under test and the required minimum transverse balance apply. arrangement at the interface to the other coefficients shall be satisfied for all (3) For analog registered protective equipment. values of dc loop current that the circuitry for 2-wire applications with (5) For analog multi-port equipment registered equipment is capable of loop-start, ringdown, or inband with loop-start signaling both off-hook drawing through each of its ports when signaling; or for voiceband metallic and on-hook requirements apply. these ports are attached to the loop channel applications, both off-hook and Criteria shall be satisfied for all ports simulator circuit specified in these on-hook requirements apply. Criteria when all the ports not under test are rules. The terminations for all ports Federal Register / Vol. 62, No. 223 / Wednesday, November 19, 1997 / Rules and Regulations 61683 other than the particular one whose battery, ringdown, or inband signaling; the off-premises line simulator circuit transverse balance coefficient is being or for voiceband metallic channel specified in these rules. measured shall have a metallic applications. Criteria shall be satisfied (9) For Type Z equipment with loop- impedance of 600 ohms and a for all network ports when all the ports start signaling, both off-hook and on- longitudinal impedance of 500 ohms. not under test are terminated as defined hook requirements apply. Equipment Figure 68.310(c) shows this termination. below, and when interface connections that has on-hook impedance (7) For analog registered terminal other than the network ports are characteristics which that do not equipment and protective circuitry for terminated in circuits appropriate to the conform to the requirements of § 68.312 4-wire network ports, both the off-hook interface. The criteria shall also be (e.g., Type Z), shall comply with and on-hook requirements apply. The satisfied for all values of dc loop current minimum transverse balance pair not under test shall be terminated that when the port is connected to the requirements of 40 dB in the voiceband. in a metallic impedance of 600 ohms. appropriate 4-wire loop simulator See § 68.312(h) for conditions upon Other conditions are as follows: circuit. The terminations for both pairs registration of ‘‘Type Z’’ equipment. (i) For analog registered protective of all network ports not under test shall (c) Digital equipment. The minimum circuitry with loop-start, ground-start, have a metallic impedance of 600 ohms transverse balance requirements for reverse battery, ringdown, or inband and a longitudinal impedance of 500 registered terminal equipment signaling; or for voiceband metallic ohms. Figure 68.310(c) shows this connected to digital services shall be channel applications. Criteria shall be termination. met with either terminal of the interface equalled or exceeded for the range of to other equipment connected to earth (8) For analog PBX equipment (or frequencies applicable for the ground. The interface to other similar systems) with class B or class C equipment under test and under all equipment shall be terminated in an off-premises interfaces, only off-hook reasonable conditions of the application impedance that will result in 600 ohms requirements apply. Criteria shall be of earth ground to the equipment. All at each of the transmit and receive pairs satisfied for all off-premises station such terminal equipment shall have a of the 4-wire telephone connection in interface ports when these ports are transverse balance in the acceptable the off-hook state of the registered terminated in their appropriate region of Figure 68.310(e) for the range protective circuit, and the interface networks for their off-hook state, and of frequencies shown in Table 68.310(b) should not be terminated in the on-hook when all other interface connections are for the specified digital service in state. Figure 68.310(d) shows the terminated in circuits appropriate to question. The metallic impedance used interface of the protective circuitry that interface. The minimum transverse for the transverse balance measurements being tested and the required balance coefficients shall also be for all subrate services shall be 135 arrangement at the interface to other satisfied for all values of dc loop current ohms and for 1.544 Mbps shall be 100 equipment. that the registered PBX is capable of ohms. The longitudinal termination for (ii) For analog multiport equipment providing through off-premises station 1.544 Mbps and subrate services shall with loop start, ground start, and reverse ports when these ports are attached to be as defined in Table 68.310(b).

FREQUENCY RANGES OF TRANSVERSE BALANCE REQUIREMENTS FOR DIGITAL SERVICES

Longitudinal Metallic ter- Digital service Frequency range termination mination (ohms) (ohms)

2.4 ...... 200 to 2.4 kHz ...... 500 135 3.2 ...... 200 to 3.2 kHz ...... 500 135 4.8 ...... 200 to 4.8 kHz ...... 500 135 6.4 ...... 200 to 6.4 kHz ...... 500 135 9.6 ...... 200 to 9.6 kHz ...... 500 135 12.81 ...... 200 to 12.8 kHz ...... 500/90 135 19.21 ...... 200 to 19.2 kHz ...... 500/90 135 25.61 ...... 200 to 25.6 kHz ...... 500/90 135 38.41 ...... 200 to 38.4 kHz ...... 500/90 135 561 ...... 200 to 56 kHz ...... 500/90 135 721 ...... 200 to 72 kHz ...... 500/90 135 1.544 ...... 10 kHz to 1.544 MHz ...... 90 100 1 For 200 to 12 kHz the longitudinal termination shall be 500 ohms and above 12 kHz the longitudinal termination shall be 90 ohms.

BILLING CODE 6712±01±P 61684 Federal Register / Vol. 62, No. 223 / Wednesday, November 19, 1997 / Rules and Regulations Federal Register / Vol. 62, No. 223 / Wednesday, November 19, 1997 / Rules and Regulations 61685 61686 Federal Register / Vol. 62, No. 223 / Wednesday, November 19, 1997 / Rules and Regulations Federal Register / Vol. 62, No. 223 / Wednesday, November 19, 1997 / Rules and Regulations 61687 61688 Federal Register / Vol. 62, No. 223 / Wednesday, November 19, 1997 / Rules and Regulations

BILLING CODE 6712±01±C Federal Register / Vol. 62, No. 223 / Wednesday, November 19, 1997 / Rules and Regulations 61689

12. Section 68.312 is revised to read start or ground-start interfaces, in the Note to § 68.312: Throughout this section, as follows: following configuration: references will be made to simulated ringing. (1) The tip and ring conductors are Ringing voltages to be used and impedance § 68.312 On-hook impedance limitations. connected together and treated as one of limitations associated with simulated ringing (a) General. Requirements in this the conductors of a tip and ring pair. are shown in Table 68.312(a). section apply to the tip and ring (2) The tip 1 and ring 1 conductors are conductors of 2-wire interfaces. These connected together and treated as the requirements also apply to 4-wire loop- other conductor of a tip and ring pair.

TABLE 68.312(a)

Range of com- Impedance Ringing type patible ringing Simulated ringing voltage superimposed on 56.5 volts limitations frequencies (Hz) dc (ohms)

A ...... 20±3 ...... 40 to 130 volts rms ...... 1400 30±3 ...... 40 to 130 volts rms ...... 1000 B ...... 15.3 to 34 ...... 40 to 130 volts rms ...... 1600 >34 to 49 ...... 62 to 130 volts rms ...... 1600 >49 to 68 ...... 62 to 150 volts rms ...... 1600

(b) Limitations on individual greater than 100 kohms. The equipment associated with each Ringing Type letter equipment intended for operation on must comply with each ringing type designation for which it is valid. loop-start telephone facilities. listed in the ringer equivalence. (1) For individual equipment Registered terminal equipment and (c) Limitations on individual intended for operation on loop-start registered protective circuitry shall equipment intended for operation on telephone facilities, the ringer conform to the following limitations: ground start telephone facilities. equivalence is five times the impedance (1) On-hook resistance, metallic and Registered terminal equipment and limitation listed in Table 68.312(a), longitudinal (up to 100 Vdc). The on- registered protective circuitry shall divided by the minimum measured ac hook dc resistance between the tip and conform to the following limitations: impedance, as defined in paragraph ring conductors of a loop start interface, (1) DC current during ringing. During (b)(1)(iv) of this section, during the and between each of the tip and ring the application of simulated ringing, as application of simulated ringing as conductors and earth ground, shall be listed in Table 68.312(a), to a ground listed in Table 68.312(a). (2) For individual equipment greater than 5 megohms for all dc start interface, the total dc current intended for operation on ground-start voltages up to and including 100 volts. flowing between tip and ring conductors (2) On-hook resistance, metallic and telephone facilities, the ringer shall not exceed 3.0 milliamperes. The longitudinal (100 V to 200 Vdc). The on- equivalence is five times the impedance equipment must comply for each hook dc resistance between tip and ring limitation listed in Table 68.312(a), ringing type listed as part of the ringer conductors of a loop start interface, and divided by the minimum measured ac equivalence. between each of the tip and ring impedance, defined in paragraph (c)(2) conductors and earth ground shall be (2) Ringing frequency impedance of this section, during the application of greater than 30 kOhms for all dc (metallic). During the application of simulated ringing as listed in Table voltages between 100 and 200 volts. simulated ringing, as listed in Table 68.312(a). (3) DC current during ringing. During 68.312(a), to a ground start interface, the (e) Ringer equivalence number the application of simulated ringing, as total impedance of the parallel labeling. Registered terminal equipment listed in Table 68.312(a), to a loop start combination of the ac impedance across and registered protective circuitry shall interface, the total dc current shall not tip and ring conductors and the ac have at least one Ringer Equivalence exceed 3.0 milliamperes. The impedance from the ring conductor to Number shown on the registration label. equipment must comply for each ground (with ground on the tip Where options that will vary the Ringer ringing type which is listed as part of conductor) shall be greater than the Equivalence are involved, either each the ringer equivalence. value specified in Table 68.312(a). The option that results in a Ringer (4) Ringing frequency impedance equipment must comply for each Equivalence Number greater than 0.1 (metallic). During the application of ringing type listed as part of the ringer and its corresponding Ringer simulated ringing, as listed in Table equivalence. Equivalence shall be listed on the 68.312(a), to a loop start interface, the (d) Ringer Equivalence Definition. The registration label, or the largest Ringer impedance between the tip and ring ringer equivalence number is defined to Equivalence Number that can result conductors (defined as the quotient of be the value determined in paragraphs from such options shall be stated on the applied ac voltage divided by resulting (d)(1) or (d)(2) of this section, as label. A trained, authorized agent of the true rms current) shall be greater than or appropriate, followed by the ringer type Grantee may disconnect ringers, bridge equal to the value specified in Table letter indicator representing the ringers to another line, or execute 68.312(a). The equipment must comply frequency range for which the number options affecting Ringer Equivalence for each ringing type which is listed as is valid. If Ringer Equivalence is to be after the telephone company has been part of the ringer equivalence. stated for more than one Ringing Type, notified in accordance with § 68.106. (5) Ringing Frequency Impedance testing shall be performed at each (f) Maximum ringer equivalence. All (longitudinal). During the application of frequency range to which Ringer registered terminal equipment and simulated ringing, as listed in Table Equivalence is to be determined in registered protective circuitry that can 68.312(a), to a loop start interface, the accordance with the above, and the affect the ringing frequency impedance impedance between each of the tip and largest resulting Ringer Equivalence shall be assigned a Ringer Equivalence. ring conductors and ground shall be Number so determined will be The sum of all such Ringer Equivalences 61690 Federal Register / Vol. 62, No. 223 / Wednesday, November 19, 1997 / Rules and Regulations on a given telephone line or loop shall § 68.314 Billing protection. signals are for one or more of the not exceed 5. In some cases, a system (a) Call duration requirements on data following purposes: that has a total Ringer Equivalence of 5 equipment connected to the public (i) Disabling echo control devices, or less may not be usable on a given switched network, or to tie trunks, or to (ii) Adjusting automatic equalizers telephone line or loop. private lines that access the public and gain controls, (g) OPS interfaces for PBX with DID switched network. Registered data (iii) Establishing synchronization, or (Ring trip requirement). PBX ringing terminal equipment and registered (iv) Signaling the presence and if supplies whose output appears on the protective circuitry shall comply with required, the mode of operation, of the off-premises interface leads shall not the following requirements when data terminal at the remote end of a trip when connected to the following answering an incoming call, except in connection. tip-to-ring impedance that terminates off-hook states in which the signals are (b) Voice and data equipment on- the off-premises station loop: A transmitted and/or received by hook signal requirements for equipment terminating impedance composed of the electroacoustic transducers only. connected to the public switched parallel combination of a 15 kohms Note to paragraph (a) of this section: This network, or to tie trunks, or to private resistor and an RC series circuit (resistor paragraph is applicable to terminal lines that access the public switched and capacitor) whose ac impedance is as equipment and registered protective circuitry network. Registered protective circuitry specified in Table 68.312(b) below. employed with digital services where such and registered terminal equipment shall digital services are interconnected with the comply with the following: TABLE 68.312(b) analog telephone network. (1) The power delivered into a 2-wire (1) Registered protective circuitry. loop simulator circuit or into the ac impedance ohms Registered protective circuitry transmit and receive pairs of a 4-wire loop simulator or into a 600 ohm Ringing freq Hz Class connected to associated data equipment B or C Class A shall assure that the following signal termination (where appropriate) in the power limitations are met for at least the on-hook state, by loop-start or ground- 20 ± 3 ...... 7000/N 1400 first 2 seconds after the off-hook start equipment shall not exceed ¥55 30 ± 3 ...... 5000/N 1000 condition is presented to the telephone dBm within the voiceband. Registered NÐNumber of ringer equivalences, as spec- network in response to an incoming protective circuitry shall also assure that ified by the manufacturer, which can be con- call: for any input level up to 10 dB above nected to the off-premises station loop. (i) Signals that appear at the the overload point, the power to a 2- protective circuitry/telephone network wire loop simulator circuit or the (h) Type Z Ringers. Equipment that interface for delivery to the telephone transmit and receive pairs of a 4-wire has on-hook impedance characteristics network shall be limited to -55 dBm, (at loop simulator circuit or into a 600 ohm which do not conform to the any frequency in the range of 200 to termination (where appropriate) does requirements of this section may be 3200 Hertz), as such signals are not exceed the above limits. conditionally registered, delivered into a loop simulator circuit (2) The power delivered into a 2-wire notwithstanding the requirements of or a 600 ohm termination, as loop simulator circuit or into the this section, provided that it is labeled appropriate; and transmit and receive pairs of a 4-wire with a Ringing Type designation ‘‘Z’’. It (ii) Signals that appear at the loop simulator circuit, in the on-hook should be noted that registration of protective circuitry-associated data state, by reverse battery equipment shall equipment bearing the designation ‘‘Z’’ equipment interface for delivery to not exceed ¥55 dBm, unless the does not necessarily confer any right of associated data equipment shall be equipment is arranged to inhibit connection to the telephone network limited as follows: for any received incoming signals. under these rules. Any equipment signal power (appearing at the (c) Voice and data equipment loop registered with the type Z designation protective circuitry-telephone network current requirements for equipment may only be used with the consent of interface) up to 0 dB with respect to one connected to the public switched the local telephone company, provided milliwatt (at any frequency in the range network. The loop current through that the local telephone company does of 200 to 3200 Hertz), the power of registered terminal equipment or not discriminate in its treatment of signals delivered to associated data registered protective circuitry, when equipment bearing the type Z equipment shall be no greater than the connected to a 2-wire or 4-wire loop designation. signal power that would be delivered as simulator circuit with the 600 ohm (i) Transitioning to the Off-Hook a result of received signal power of -55 resistor and 500 microfarad capacitor of State. Registered terminal equipment dBm. the 2-wire loop simulator circuit or both and registered protective circuitry shall (2) Registered terminal equipment. pairs of the 4-wire loop simulator circuit not by design leave the on-hook state by Registered terminal equipment for data disconnected shall, for at least 5 operations performed on tip and ring applications shall assure that, when an seconds after the equipment goes to the leads for any other purpose than to incoming telephone call is answered, off-hook state that would occur when request service or answer an incoming the answering terminal equipment answering an incoming call: call, except that terminal equipment prevents both transmission and (1) Be at least as great as the current that the user places in the off-hook state reception of data for at least the first two obtained in the same loop simulator for the purpose of manually placing seconds after the answering terminal circuit with minimum battery voltage telephone numbers in internal memory equipment transfers to the off-hook and a maximum loop resistance when a for subsequent automatic or repertory condition. For the purpose of this 200 ohm resistance is connected across dialing shall be registerable. Make-busy requirement, a fixed sequence of signals the tip and ring of the 2-wire loop indications shall be transmitted by the that is transmitted (and originated simulator circuit or connected across use of make-busy leads only as defined within) and/or received by the the tip/ring and tip 1/ring 1 conductors in § 68.3 and § 68.200(j). registered terminal equipment each time (tip and ring connected together and tip 13. Section 68.314 is revised to read it answers an incoming call shall not be 1 and ring 1 connected together) of the as follows: considered data, provided that such 4-wire loop simulator circuit in place of Federal Register / Vol. 62, No. 223 / Wednesday, November 19, 1997 / Rules and Regulations 61691 the registered terminal equipment or shall be applied within 0.5 seconds of which employ means for detecting both registered protective circuitry; or the time that: busy and reorder signals shall be (2) Not decreased by more than 25 (i) The terminal equipment permits permitted an additional 13 attempts if a percent from its maximum value the acceptance of further digits that may busy or reorder signal is encountered on attained during this 5-second interval; be used to route the incoming call to each attempt. The dialer shall be unable unless the equipment is returned to the another destination. to re-attempt a call to the same number on-hook state during the above 5 second (ii) The terminal equipment transmits for at least 60 minutes following either interval. signals towards the calling party, except the second or fifteenth successive (3) The above requirements also apply for the call progress tones, i.e., busy, attempt, whichever applies, unless the in the hold state and any off-hook state. reorder and audible ring, and the call is: dialer is reactivated by either manual or (d) Signaling interference (A) Answered by the called, or external means. This rule does not requirements. (1) The signal power another station; apply to manually activated dialers that delivered to the network interface by the (B) Answered by the attendant; dial a number once following each registered terminal equipment and from (C) Routed to a customer controlled or activation. signal sources internal to registered defined recorded announcement, except Note to paragraph (b)(1): Emergency alarm protective circuitry in the 2450 Hz to for ‘‘number invalid,’’ ‘‘not in service’’ dialers and dialers under external computer 2750 Hz band shall be less than or equal or ‘‘not assigned;’’ control are exempt from these requirements. to the power present simultaneously in (D) Routed to a dial prompt; or (2) If means are employed for detecting the 800 Hz to 2450 Hz band for the first (E) Routed back to the public both busy and reorder signals, the automatic 2 seconds after going to the off-hook switched telephone network or other dialing equipment shall return to its on-hook state. destination and the call is answered. If state within 15 seconds after detection of a (2) Registered terminal equipment for the status of the answered call cannot be busy or reorder signal. connection to subrate or 1.544 Mbps (3) If the called party does not answer, the reliably determined by the terminal automatic dialer shall return to the on-hook digital services shall not deliver digital equipment through means such as, signals to the telephone network with state within 60 seconds of completion of detection of answer supervision or voice dialing. encoded analog content energy in the energy, removal of audible ring, etc., the (4) If the called party answers, and the 2450 to 2750 Hertz band unless at least off-hook state shall be applied after an calling equipment does not detect a an equal amount of encoded analog interval of not more than 20 seconds compatible terminal equipment at the called energy is present in the 800 to 2450 from the time of such routing. The off- end, then the automatic dialing equipment Hertz band for the first two seconds hook state shall be maintained for the shall be limited to one additional call which after going to the off-hook state. duration of the call. is answered. The automatic dialing equipment shall comply with paragraphs (e) On-hook requirements for (2) For registered protective circuitry: registered terminal equipment for (b)(1), (b)(2), and (b)(3) of this section for (i) Registered protective circuitry shall additional call attempts that are not connection to subrate and 1.544 Mbps block transmission incoming from the digital services. Registered terminal answered. network until an off-hook signal is (5) Sequential dialers shall dial only once equipment and registered protective received from the terminal equipment. to any individual number before proceeding circuitry shall comply with the (ii) Registered protective circuitry to dial another number. following: shall provide an off-hook signal within (6) Network addressing signals shall be (1) The power delivered to the 0.5s following the receipt of an off-hook transmitted no earlier than: telephone network in the on-hook state signal from the terminal equipment and (i) 70 ms after receipt of dial tone at the as derived by a zero level decoder shall network demarcation point; or shall maintain this off-hook signal for not exceed ¥55 dBm equivalent power (ii) 600 ms after automatically going off- the duration of the call. for digital signals within the voiceband. hook (for single line equipment that does not (2) Registered protective circuitry 14. Section 68.316 is amended by use dial tone detectors); or shall also assure that the power to a zero revising the section heading to read as (iii) 70 ms after receipt of CO ground start at the network demarcation point. level decoder does not exceed the above follows: limits for any input level up to 10 dB § 68.316 Hearing aid compatibility: (c) Line seizure by automatic above the overload point. Technical requirements. telephone dialing systems. Automatic (3) Reverse battery interface. The * * * * * telephone dialing systems which deliver power derived by a zero level decoder, 15. Section 68.317 is amended by a recorded message to the called party in the on-hook state, by reverse battery revising the section heading to read as must release the called party’s equipment, shall not exceed ¥55 dBm, follows: telephone line within 5 seconds of the unless the equipment is arranged to time notification is transmitted to the inhibit incoming signals. § 68.317 Hearing aid compatibility volume system that the called party has hung (f) Off hook requirements. Off-hook control: technical standards. up, to allow the called party’s line to be signal requirements for registered * * * * * used to make or receive other calls. terminal equipment connecting to 1.544 16. Section 68.318 is revised to read (d) Telephone facsimile machines; Mbps digital services. Upon entering the as follows: Identification of the sender of the normal off-hook state, in response to message. It shall be unlawful for any alerting, for subrate channels, registered § 68.318 Additional limitations. person within the United States to use terminal equipment shall continue to (a) General. Registered terminal a computer or other electronic device to transmit the signaling bit sequence equipment for connection to those send any message via a telephone representing the off-hook state for 5 services discussed below must facsimile machine unless such message seconds, unless the equipment is incorporate the specified features. clearly contains, in a margin at the top returned to the on-hook state during the (b) Registered terminal equipment or bottom of each transmitted page or on above 5-second interval. with automatic dialing capability. (1) the first page of the transmission, the (g) Operating requirements for direct Automatic dialing to any individual date and time it is sent and an inward dialing. (1) For registered number is limited to two successive identification of the business, other terminal equipment, the off-hook state attempts. Automatic dialing equipment entity, or individual sending the 61692 Federal Register / Vol. 62, No. 223 / Wednesday, November 19, 1997 / Rules and Regulations message and the telephone number of List of Subjects in 47 CFR Part 73 the Dockets Facility, U.S. Department of the sending machine or of such Radio broadcasting. Transportation, 400 Seventh Street, SW, business, other entity, or individual. Plaza 401, Washington, DC 20590–0001. Telephone facsimile machines Federal Communications Commission. Comments should identify the docket manufactured on and after December 20, Douglas W. Webbink, number of this DFR, RSPA–97–2096. 1992, must clearly mark such Chief, Policy and Rules Division, Mass Media Persons should submit the original and identifying information on each Bureau. one copy. Persons wishing to receive transmitted message. [FR Doc. 97–30281 Filed 11–18–97; 8:45 am] confirmation of receipt of their (e) Requirement that registered BILLING CODE 6712±01±P comments must include a stamped, self- equipment allow access to common addressed postcard. Alternatively, carriers. Any equipment or software comments may be submitted via e-mail manufactured or imported on or after DEPARTMENT OF TRANSPORTATION to [email protected]. The Dockets April 17, 1992, and installed by any facility is open from 10:00 a.m. to 5:00 aggregator shall be technologically Research and Special Programs p.m., Monday through Friday, except on capable of providing consumers with Administration Federal holidays. access to interstate providers of operator 49 CFR Parts 191, 192 and 195 FOR FURTHER INFORMATION CONTACT: L.E. services through the use of equal access Herrick, (202) 366–5523 or e-mail codes. The terms used in this paragraph [Docket No. RSPA 97±2096; Amdt Nos. 191± [email protected] regarding the shall have meanings defined in § 64.708 12; 192±81; 195±59] subject matter of this DFR, or the of this chapter (47 CFR 64.708). RIN 2137±AC99 Dockets Facility, (202) 366–5046, [FR Doc. 97–29925 Filed 11–18–97; 8:45 am] regarding copies of this DFR or other Pipeline Safety: Regulations information in the docket. BILLING CODE 6712±01±P Implementing Memorandum of Understanding With the Department of SUPPLEMENTARY INFORMATION: FEDERAL COMMUNICATIONS the Interior Background COMMISSION AGENCY: Research and Special Programs Under an MOU dated May 6, 1976, Administration (RSPA), DOT. RSPA regulated hazardous liquid, 47 CFR Part 73 ACTION: Direct final rule. carbon dioxide, and natural gas pipelines located downstream of the [MM Docket No. 97±97, RM±9047] SUMMARY: This direct final rule (DFR) outlet flange of each facility where would implement a provision of a hydrocarbons are first produced or Radio Broadcasting Services; Mt. December 10, 1996, Memorandum of where produced hydrocarbons are first Juliet and Belle Meade, TN Understanding (MOU) between the separated, dehydrated, or otherwise Department of the Interior (DOI) and the AGENCY: Federal Communications processed, whichever facility is farther Department of Transportation (DOT) Commission. downstream. DOI regulated those regarding Outer Continental Shelf (OCS) pipelines located upstream of this point. ACTION: Final rule. pipelines by redesignating the point at The Departments agreed to change this which an OCS pipeline is subject to SUMMARY: This document denies a regulatory boundary with the signing of RSPA regulations. Under this rule, Petition for Reconsideration filed by the the December 10, 1996, MOU. The 1996 RSPA would establish and enforce Cromwell Group, Inc. directed to the MOU was the result of negotiations that design, construction, operation, and Report and Order in this proceeding began in the summer of 1993, which maintenance regulations and investigate which reallotted Channel 294A from Mt. included a high degree of participation certain accidents for all pipelines Juliet to Belle Meade, Tennessee, and from the regulated industry. RSPA and located downstream of the point at modified the Station WNPL DOI’s Minerals Management Service which operating responsibility for the construction permit to specify Belle (MMS) solicited public comments on a pipelines transfers from a producing Meade as the community of license. See draft MOU through a joint Federal operator to a transporting operator. 62 FR 40949, July 31, 1997. With this Register notice (60 FR 27546; May 24, DATES: action, the proceeding is terminated. This direct final rule takes effect 1995). The notice also announced a March 19, 1998. If RSPA does not public meeting at the MMS Gulf of EFFECTIVE DATE: November 19, 1997. receive any adverse comment or notice Mexico regional office in New Orleans, FOR FURTHER INFORMATION CONTACT: of intent to file an adverse comment by Louisiana, on August 1, 1995, to discuss Robert Hayne, Mass Media Bureau (202) January 20, 1998 the rule will become the proposal. Over 70 people attended 418–2177. effective on the date specified. RSPA the meeting, which generated over 100 SUPPLEMENTARY INFORMATION: This is a will issue a subsequent notice in the pages of comments from natural gas and synopsis of the Commission’s Federal Register by February 17, 1998, petroleum trade organizations; natural Memorandum Opinion and Order after the close of the comment period, gas and oil exploration and production adopted October 22, 1997, and released to confirm that fact and reiterate the companies; transmission companies; October 31, 1997. The full text of this effective date. If an adverse comment or offshore construction companies; and decision is available for inspection and notice of intent to file an adverse industry consultants. Twenty-three copying during normal business hours comment is received, RSPA will issue a individuals and organizations submitted in the FCC Reference Center (Room timely notice in the Federal Register to written comments on the Federal 239), 1919 M Street, NW, Washington, confirm that fact and to withdraw the Register notice. A transcript of this D.C. The complete text of this decision DFR in whole or in part. RSPA may then meeting and copies of the comments are may also be purchased from the incorporate the adverse comment into a available in Docket No. RSPA–97–2096. Commission’s copy contractor, subsequent DFR or may publish a notice In May 1996, RSPA and MMS met International Transcription Service, of proposed rulemaking. with an industry workgroup Inc., (202) 857–3805, 1231 M Street, ADDRESSES: Written comments on the representing OCS oil and natural gas NW, Washington, DC 20036. subject of this DFR may be submitted to producers and transmission pipeline