DIV 27 – COMMUNICATIONS Surface Mounted Raceway: • Shall be metallic (not plastic) and mechanically fastened to surfaces • Glues and/or adhesives are not allowed for mounting/attaching raceways. • Wire Manufacturer: Wiremold, Hubbell or approved equal • Powder coated conduit and accessories manufacturers: Sherwin Williams POWDURA Polyester TGIC Powder Coating Fire Alarm Communication • Fire alarms will communicate with the central station using an AES 7788F fire alarm communication radio. The radio will operate on the district frequency and will utilize an AES 7794 Intellipro panel to provide full contact ID where available. Battery Back-up Surge Protection: • TrippLite Smart 1500 LCDXL, or approved equivalent • Mount in rack with power cord clear of other low voltage wiring • Power directed from outlet when feasible Technology and Information Services Wiring Standard 1. Technical Requirements Architecture/Topology Summary 1.1 Provide all labor, materials, tools and equipment to install data wiring consistent with IEEE EIA/TIA 568B, TSB-36, TSB-40A and IEEE 802.3 100Base-T specification. Each data location will be provisioned with four pair category 6 UTP cable employing 568B termination on Leviton Cat 6 inserts. 1.2 A star or modified-star topology is required in the design of the distribution system. Transmission Media 1.3 All cabling employed will meet or exceed the requirements and specifications for Category 6, eight conductor, four pair unshielded twisted pair cable for LAN applications through data rates of 1000 Mb/s. 1.4 All network component hardware used in all installations will be certified by the manufacturer for data transport to 1000 Mb/s. All panels, cables, outlets, connectors, couplers, cords, and jumpers used in all installations will be provided and installed consistent with standards contained in EIA/TIA 568B, TSB- 36, and TSB-40A. 2. Connection Hardware and Design 2.1 Copper patch cable standards in network rooms are as follows: Color Utilization Example Green Servers Switch to server Red w/yellow striping X-over – Comcast Switch to switch Yellow w/ red banding Food Services Switch to panel Blue Workstations Switch to panel Purple Wireless Switch to panel White or Grey Security Devices/HVAC Switch to panel Pink VOIP Gateway Switch to Gateway Orange Analog Phone Voice field to panel 2.2 TIS will supply the patch cables used in the network rooms to maintain coordination of the colors and lengths. On projects with over 10 cables, the contractor will provide patch cords. The lengths of patch cords used should be factory made either 3’, 5’ or 7’ with boots. The length used should always be the shortest length that allows for proper routing through the wire management. Excessively long patch cords should not be coiled up and used in place of the correct length. Revision 8, December 1, 2016 Division 27 – Page 1 of 6 2.3 Make sure not to move any of the pink, orange, white, grey, green or red cables to any different ports on either the switches or patch panels. If they need to be temporarily disconnected for any reason, please make note of port numbers on the switch and patch panels where they are connected to ensure that they will be reconnected to the same ports. 3. Equipment Room 3.1 The data network cabling will terminate at a freestanding or wall-mounted rack. Unless otherwise noted, and space permitting, all Main Distribution Frame (MDF) wiring closets will utilize 7-foot freestanding data racks, listed in section 12. SKPS Technology must approve the placement of all racks. Where floor mount data racks are utilized, racks must be both bolted to the floor and secured to walls and meet all code requirements for seismic conditioning. At no time can racks, punch-down blocks or enclosures be secured to bare walls. A fire treated, 3/4-inch minimum plywood backboard must be first installed. All data racks must be grounded. Safety, security, and space utilization will be considered in the design of the MDF. 3.2 Exposed wire pairs will be protected and meet NEC requirements before terminating at the cross- connect field. 4. Satellite Closet Design 4.1 Satellite closet(s) or Intermediate Distribution Frame(s) (IDFs) will be located within six hundred feet (600’) of the Main Distribution Frame (MDF), or the next closest IDF, when within a building to allow horizontal copper cabling to remain within specs. When connecting separate buildings or portables, this does not apply. 4.2 The data network cabling will terminate at a freestanding or wall-mounted cabinet. When utilizing wall mount cabinets at IDF wiring locations, utilize a “swing-style” enclosed wall mount data cabinet, preferably with a minimum of 36-inch high by 19-inch wide by 18-inch deep (36”x19”x18”). Cabinets must be mounted securely onto a fire treated 3/4-inch minimum plywood backboard. Cabinets mounted to the wall must not exceed the height of 6 feet. All data racks must be grounded. Safety, security, and space utilization will be considered in the design of the IDF(s). 4.3 Exposed wire pairs will be protected and meet NEC requirements before terminating at the cross- connect field. 4.4 A. When creating a new IDF in portables the network cabling will terminate at a wall mounted cabinet, listed in section 12. Cabinets must be mounted securely onto a fire treated ¾ inch minimum plywood backboard. Cabinets mounted to the wall must not exceed the height of 6 feet. All data cabinets must be grounded. Safety, security, and space utilization will be considered in the design of the IDF. B. When adding a new portable to a school without existing portables nearby, a new IDF will be created in that portable as stated above, additionally a new fiber will be installed between the new portable IDF and the MDF (refer to fiber specification). C. When adding a new portable to an existing group of portables with an existing IDF in place, the new portable will be connected to the portable with the IDF by underground conduit so that new cabling for the portable can be routed to the IDF without the use of lightning blocks. New cabling will be outdoor rated when aerial and cannot exceed a length of 50’ within the building per code. 4.5 Lightning blocks when used shall be terminated above the ceiling and be properly grounded. Lightning blocks used must be able to pass 1gb data transmission speeds and also pass POE for Cisco devices, listed in section 12. 5. Information Outlets (Data Jacks) 5.1 Information outlets will be wired with EIA/TIA 568B standards. 5.2 RJ45 outlets will be used for voice and data drops. 5.3 See Section 12, Product List for a detail description of items used. 6. Wireless infrastructure support 6.1 Wireless access point installation locations shall be documented on plans. Each wireless access point shall have Cat 6 wiring pulled back to the nearest network room. 6.2 Wireless networks shall be installed only as extensions or additions to hard-wired networks, and not as a replacement for cabled data or phone networks. 6.3 Each WAP will be labeled with the WAP name and number; and also the network jack ID that it is plugged into. 7. Installations Technique 7.1 Where possible, and as the lowest cost solution, flush mounted wall outlets will be installed. 7.2 Wiring is to be installed inside the walls, and run above ceilings or in crawl spaces or passage ways/utility chases below the floors. Division 27 – Page 2 of 6 Revision 8, December 1, 2016 7.3 Any required surface mount cable runs will be protected by the Contractor provided raceway. When raceway must be used, it is preferred to use larger raceway to allow for future expansion. Panduit LD10 or Wiremold 2900 are the preferred sizes. Smaller raceway may be used when going to a location that won’t have additional cabling added in the future, such as a WAP location. 7.4 Wiring runs will not obstruct walkways or service access to mechanical/electrical equipment. All cable shall be self-supported and attached to the structure as required by code. Cable will follow a common path whenever possible, and will not run closer than 18” from any AC power or signal source. 7.5 All Category 6 cable runs shall be tested bi-directionally for end-to-end continuity and polarity. Testing must be performed by a recognized manufacturer’s unit (WireScope, Fluke, MicroTest, etc.), that performs all required certification tests at 350MHz. Each run tested must meet current EIA/TIA 568B standards. Hardcopy of each run’s test results, along with a disk backup, are required by the District. Each hardcopy test result must show the run’s unique identity number. Additionally, data runs shall be tested to meet TSB-40A specifications for attenuation and, NEXT, and return loss requirements. This means that each individual wire run, after termination, will be certified with a category 6 qualified testing device. All test results are to be documented and turned over to the Network Services Group at Technology and Information Services. 7.6 Each cable run will be tagged at both ends with the same assigned numbers or letters. All jacks will be labeled with the corresponding connection at the cross-connect field. 7.7 Materials that may be required by the vendor for horizontal sub-system includes, but is not limited to, the following: Horizontal Cable (four pair cabling for outlets) Wall outlets and faceplates at all locations All cross-connect fields and wiring termination Wire distribution rings, racks, raceway or troughs All fire stops required by code Labor and material required to restore vendor-damaged surfaces (walls, ceilings and floors).