The Acronyms Guide edited by Erin Malone Chris Janson 1st edition Publisher Acknowledgement: This is the first edition of this book. Please notify us of any acronyms we may have missed by submitting them via the form at www.ciena.com/acronymsguide. We will be happy to include them in further editions of “The Acronyms Guide”. For additional information on Ciena’s Carrier Ethernet or Optical Communications Certification programs please contact [email protected]. Table of Contents Numerics ..........................1 A .......................................1 B .......................................2 C .......................................3 D .......................................5 E .......................................7 F........................................9 G .....................................10 H .....................................11 I .......................................12 J ......................................14 K .....................................14 L ......................................14 M ....................................15 N .....................................17 O.....................................18 P .....................................20 Q.....................................22 R .....................................22 S......................................23 T .....................................26 U .....................................28 V .....................................29 W ....................................29 X .....................................30 Z......................................30 Acronym Guide ADI Asset Distribution Interface Numerics ADM Add/Drop Multiplexer 2F Two-Fiber ADP Actual Departure Potential; Automatic 10 GbE 10 Gigabit Ethernet Data Processing ADSL 10 GFC 10 Gigabit Fibre Channel (Same as Asymmetric Digital Subscriber Line FC1200) ADT Actual Departure Time; Automatic Data 100G 100 Gigabits Transmission AE 16-QAM 16 (points) Quadrature Amplitude Automation Engine; Automation Envi- Modulation ronment AES 3D Three Dimensional Advanced Encryption Standard; Application Environment Specific 3G 3rd Generation AESA ATM End System Address; ATM End 40G 40 Gigabits Station Address 4C Consortium of Intel, IBM, Matsushita, AFI Authority and Format Identifier and Toshiba AFM APS Mode Mismatch Failure 4F Four-Fiber AGC Automatic Gain Control; Access Group 5C Consortium of Intel, Sony, Matsushita, Controller Toshiba, and Hitachi AGGR Aggregate A AID Access Identifier; Application Identifier A/D Analog-to-Digital AIM Auto Image Management; Active AAL ATM Adaptation Layer Inventory Map AAL0 ATM Adaptation Layer Type 0 AIN Advanced Intelligent Network AAL1 ATM Adaptation Layer Type 1 AINI ATM Inter-Network Interface AAL2 ATM Adaptation Layer 2 Transport AINS Automatic in Service State AAL3/4 ATM Adaptation Layer Type 3 and 4 AIR Additive Increase Rate AAL5 ATM Adaptation Layer 5 AIS Alarm Indication Signal ABR Available Bit Rate AISDP Alarm Indication Signal Decay Period ABT Advanced BiCMOS Technology AISIP Alarm Indication Signal Integration AC Alternating Current; Administrative Period Complex; Atomic Clock AIS-L Alarm Indication Signal - Line AC-3 Audio Coding Revision 3 AIS-P Alarm Indication Signal - Path ACAC Actual Call Admission Control AIS-S Alarm Indication Signal - Section ACEG Alternating Current Equipment Ground AIS-V VT Alarm Indication Signal ACK Acknowledge ALS Automatic Laser Shutdown; Application ACL Active Control List; Access Control List Layer Service ACO Alarm Cutoff AM Amplitude Modulation; Application ACQ Acquire Manager ACR Allowed Cell Rate AMF APS Mode Mismatch Failure ACS Automatic Channel Shutdown; Alarm AMI Access Method Interface; Alternate Correlation and Suppression Mark Inversion ACSE Association Control Service Element AMP Amplifier; Amperes ACSS Automatic Channel Shutdown AMS Asset Management System; Agent Suppression; Automatic Channel Management System Shutdown State ANSI American National Standards Institute ACT Active AO Autonomous Output ADC Analog-to-Digital Converter; Add/Drop AOD Advertising on Demand Coupler APC Angled Physical Contact 1 APD Avalanche PhotoDiode AU-n Administrative Unit n API Application Program Interface AUX Auxiliary APS Automatic Protection Switching AVC Attribute Value Change APSBF Automatic Protection Switching Byte AWG American Wire Gauge Failure AWGN Additive White Gaussian Noise APSCM Automatic Protection Switching Channel Mismatch B APSMM Automatic Protection Switching Mode Mismatch B/P Backplane ARC Alarm Reporting Control B3ZS Bipolar With 3-Zero Substitution ARP Address Resolution Protocol B6ZS Bipolar With 6-Zero Substitution ARPU Average Revenue per Unit (or User) B8ZS Bipolar With 8-Zero Substitution AS Autonomous System BA Booster Amplifier ASAP Alarm Severity Assignment Profile BB Broadband ASCII American Standard Code for Informa- BBE Background Block Error tion Interchange BBER Background Block Error Ratio ASD Access Security Device BBE-RS Background Block Error Regenerator ASE Amplified Spontaneous Emission; Ap- Section (an SDH regenerator section plication Service Element error) ASI Asynchronous Serial Interface; BC Business Continuity; Broadcast Asynchronous SCSI Interface BCD Binary-Coded Decimal ASIC Application-Specific Integrated Circuit BCST Broadcast ASN.1 Abstract Syntax Notation One B-DCS Broadband Digital Cross-connect ASP Applications Service Provider; Average System Selling Price BDFB Battery Distribution Fuse Bay; Battery ASYNC Asynchronous Distribution Fuse Board AT Advanced Technology BE Block Error; Best Effort AT&T American Telephone and Telegraph BECN Backward Explicit Congestion Notifica- Company tion ATA Advanced Technology Attachment BELLCORE BELL Communications Research, Inc. ATAF ATM Test Access Function BER Bit Error Rate ATAG Autonomous Tag BE-RS Block Errors-Regenerative Section ATAGSEQ Autonomous Tag Sequence BER-SD-P Path Signal Degrade BER ATC Alarm Traffic Controller BER-SF-P Path Signal Failure BER ATDMA Asynchronous Time Division Multiple BERT Bit Error Rate Test Access BFP Back Facet Power; Basic Format Packet A-TDMA Advanced Time Division Multiple BGP Border Gateway Protocol Access BGP4 Border Gateway Protocol, version 4 ATM Asynchronous Transfer Mode BICI Broadband Inter-Carrier Interfaces; ATM SAM ATM Service Access Multiplexer B-ISDN Inter-carrier Interface ATMVCL ATM Virtual Channel Link BICSI Building Industry Consulting Services ATMVPL ATM Virtual Path Link International ATTN Attenuator BIOS Basic Input/Output System AU/AU-x Administrative Unit BIP Bit Interleaved Parity; Breaker Interface Panel AUG Administrative Unit Group B-ISDN Broadband ISDN AUI Autonomous Unit Interface 2 BIT Built-In Test; Binary Digit CA Content Archived; Carrier Access BITS Building Integrated Timing System CAB Conformity Assessment Body bits/sym Bits per Symbol CAC Connection Admission Control; Call BLSR Bidirectional Line Switched Ring Admission Control BML Business Management Layer CAD Computer Aided Design BNC Bayonet Neill-Concelman British CALA Central America and Latin America National Connector CAM Content Addressable Memory BOC Bell Operating Company CANARIE Canadian Network for Advancement of BOD Bandwidth on Demand Research BOL Beginning of Life CAP Competitive Access Provider BOM Bill of Materials CAPEX Capital Expenditure BONDING Bandwidth ON Demand CAS Channel Associated Signaling Interoperability Group CATV Community Antenna Television; Cable BOOTP Bootstrap Protocol Television BP Backplane CB, C/B Circuit Breaker BPI Baseline Privacy Interface CBDS Connectionless Broadband Data Service BPI+ Baseline Privacy Interface Plus CBN Common Bonding Network B-PON Broadband Passive Optical Network CBR Constant Bit Rate BPP Backplane Protocol CC Cross Connection; Clear Channel; bps bits per second Calling Centers BPSR Bidirectional Path Switched Ring CCAF Call Control Agent Function, IN block BPT Band Pass-Through CCB Configuration Control Board BPV BiPolar Violations CCC Cross Connect Controller B-RAS Broadband Remote Access Server CCC768 Cross Connect Fabric with 768x768 BRI Basic Rate Interface STS-1 capacity BRM Backward RM CCCG Cross Connection and Control Group BSC Board SC Connector CCC-PC CCC Processor Card BSP Board Support Package CCDF Complementary Cumulative BSS Business Support System Distribution Function BT British Telecom; Burst Tolerance CCI Content Control Information Btag Beginning Tag CCITT Consultative Committee on Interna- tional Telegraphy and Telephony BTM Bits Termination Circuit Pack CCK Complimentary Code Keying BTO Build Transfer Operate CCW Counterclockwise BTS Business Telecom Services CDE Common Desktop Environment (UNIX) BTU/hr British Thermal Unit per hour CDMA Code Division Multiple Access BW Bandwidth CDP Contracted Deadline Potential BWDM Band Wavelength Division Multiplexer CDR Call Detail Recording; Clock and Data BYT Total Byte Count Recovery CD-ROM Compact Disc Read Only Memory C CDT Connection Dropping Threshold C Celsius; Critical CDTS Chromatic Dispersion Test Set C/I Carrier-to-Interface Ratio CDV Cell Delay Variation C/N Carrier-to-Noise Ratio CDVT Cell Delay Variation Tolerance C2O Cable to Optic CD-WO Compact Disc - Write One 3 CE Consumer Electronics CME Compressed Multiplication Equipment CEA Consumer Electronics Association CMF Channel Mismatch Failure; Client CELP Code Excited Linear Predictive Management Frame CER Cell Error Ratio; Codeword Error Ration CMIP Common Management Information Protocol CES Circuit Emulation Service CMIS Common Management Information CEV Controlled Environmental Vault Services CFDM Command