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Technical Specifications for the Installation of UTP Cabling 1. IntroductionCommunication and Network Services (CNS) currently specifies the installation and use of plenum rated (CMP) Category 5E (Cat5E) Unshielded Twisted Pair (UTP) cable to support voice and data communication services on the Berkeley campus. The standard UTP communications cabling required for use on the Berkeley campus shall be of a specific type and must be installed according to the following standards and specifications. The standards for communications cable may be more restrictive than those normally encountered by cable installers. In general the requirements include:
2. GeneralCables shall be installed in unbroken segments from Telecommunications Rooms (TR) to individual communication outlet locations. In the TR, cables shall be terminated on 110-style cross-connect blocks from specified manufacturers designated for voice and data communication service. At each workspace location cables shall be terminated in a wall mounted TIA/EIA 568A compliant communications outlet from specified manufacturers. All installed cabling runs shall be tested for compliance with specified parameters, documentation provided, and both ends of each cable run shall be labeled. Test results must be verified for compliance and entered into the CNS database prior to activation of cables for voice or data use. 3. Cable TypeAll installed cable shall be 100 ohm, 4 pair, unshielded twisted pair (UTP), #24 AWG solid copper inside wire which meets or exceeds ANSI/TIA/EIA 568-B.2-2001 standards for UL Category 5E cable, (Belden part number 1701A, or equivalent). Cable insulation jackets are to be color coded for the service type; blue for data and white for voice applications. Cable jackets shall be legibly marked with the following information:
Cable specification sheets for all cable must be provided to Network Development/Communication and Network Services, (510) 643-5954 prior to installation. 4. Physical InstallationWhere cable pathways transition from horizontal to vertical, there shall be installed an appropriate ‘waterfall’ component to provide minimum bend radius. No cable or cable support structure may be installed in any fashion that might prevent maintenance of or access to any utility facility. 4.1 General TopologyCabling between TR and communication outlet locations shall be made as individual home runs. No intermediate punch down blocks or splices may be installed or utilized between the TR and the communications outlet. It is imperative that only the specified plenum rated Category 5E cable be used in all cabling and that the factory twist be maintained throughout the runs. 4.2 Concealed CablingAll cabling shall be installed inside walls or ceiling spaces wherever possible. Within office spaces any exposed cable-run must be enclosed in appropriate raceway, as described below. 4.2.1 RacewaysCable that can not be run inside a protected space must be enclosed in protective raceway such as cable tray or Wiremold 400, 800, 2300 or Panduit type LD10. Protective raceways must be permanently attached to underlying wall surfaces with appropriate wall anchors. 4.2.2 Wall PenetrationsCable penetrations of walls or floors are to be sleeved with metallic conduit and bushings. Cable penetrations of walls or floors designed as fire barriers are to be sleeved with metallic conduit and bushings and packed with fire blocking material in compliance with campus and state fire codes. 4.3 Maximum LengthThe maximum length of any cable run shall not exceed 89 meters, (295 feet). 4.4 Securing Exposed CablesAll exposed cables shall be dressed neatly and physically secured to prevent accidental dislocation or damage. It is not permissible to secure cabling to the outside of conduit or to gas, plumbing, steam, or any other functional pipes. Cables shall not be secured to any utility structures. No staples may be used to secure cables to any surface. Since modern twisted pair cabling must be expected to carry high signal rates, it is necessary to avoid stressing the wire. Tight 90-degree bends are not permissible, and no plastic “cinch-type” tie-wraps are to be used. Care should be taken to avoid routing cables within 18 inches of electrical noise generating devices such as transformers and light ballasts. 5. Cable TerminationCables shall be terminated on 110-style cross-connect blocks in the TR and on communications outlets at the office locations. 5.1 110-Style Cross Connect Blocks and HardwareThe following 110-style cross-connect blocks and associated materials are specified for use on the U.C. Berkeley campus. Exact configurations must be cleared with CNS/Network Development prior to installation. 5.1.1 Siemon Siemon S110AW1-100, 100 pair type 110 wiring block 5.1.2 Avaya Avaya 110AB2-100FT 100 pair type 110 wiring block 5.1.2.1 110-Type Field Termination Towers (Kits) 110PB2-300FT (w/ 300pair) (ComCode 107 058 810) 5.2 Communications Outlets (CO's)Each cable shall be terminated at the user location on the specified communications outlet. 5.2.1 SpecificationsThe specified communications outlets have spaces for multiple adapter inserts. Typical office outlet configuration will contain two data jacks and one voice jack. The data insert is to be installed in the topmost space, or the left-most space for horizontal mountings. For voice applications the insert is to be installed in the lower or right-most space for horizontal mounting. Blank inserts shall be installed in all unused jack appearance locations. CNS has standardized on the use of several communication outlets for campus installation. Products from Panduit and Avaya are authorized for installation. As part numbers are subject to change without notice, contractor is to obtain CNS approval for use of any parts not listed. Clearance as to type to be installed must be obtained from Network Development/Communication and Network Services, (510) 643-5954, prior to the installation of outlets. Communications outlets for installation at Berkeley shall consist of the following. 5.2.1.1 Flush Mount/Furniture MountedFor flush mounting in recessed wall boxes use: 5.2.1.1.1 Panduit CFPL4EI - 4 module, single gang, mini-com faceplate. Panduit MFFPEIW - Mini-Com snap-on modular furniture faceplate extender Panduit CFFP4EI - 4 module, Mini-Com snap-on modular furniture faceplate 5.2.1.1.2 Avaya M13C-246 Modular Triplex Furniture Faceplate Elect. Ivory 5.2.1.2 Surface MountFor surface mounting use either: 5.2.1.2.1 Panduit Panduit MBX2EI-A - Adhesive base, 2-port, modular, communication
outlet 5.2.1.2.2 Avaya M101SMB-246 Single Outlet Box Elect. Ivory 5.2.1.3 Blanks and Dust Covers5.2.1.3.1 Panduit Panduit MMB1EI-X - Blank, Single, Ivory 5.2.1.3.2 Avaya M20AP-246 Front Snap-in (100 pk) Elect. Ivory 5.2.2 LocationWhere possible, the communications outlet shall be located so that its horizontal centerline is 18 inches above floor level or 12 inches above permanent bench surfaces. In no case shall it be installed lower than 12 inches above floor level without prior written approval from CNS/Network Development, (510) 643-5954. Surface mounted outlets are acceptable if well secured. Recessed outlets are preferred and require metal-mounting boxes in any wall designated as a fire barrier. Outlets shall not be mounted on temporary, movable, or removable surfaces, doors, or access hatches. This restriction does not apply to modular furniture. (e.g. Steel Case 9000) 5.2.3 Adapter InsertsA variety of inserts are available to make the specified communications outlets usable for different wiring applications. For all installations, unless specified otherwise, the default installed insert shall be the one designated for Category 5E, T568A wiring. It is critical that only those specified below be used. 5.2.3.1 Panduit Panduit CJ5888ABL - Mini-Jack, EIA568A Outlet for DATA 5.2.3.2 Avaya M100BH1-270 8 Position Jack Elect. Ivory 5.3 Telecommunication Rooms Station Cable TerminationIn the TR all cables shall be terminated on horizontally mounted 110-style cross-connect blocks firmly connected to a plywood backboard. Where necessary, a new fire-rated 3/4" plywood panel, properly painted and inspected by CNS/ND, shall be firmly anchored to the wall to accommodate mounting of the blocks. Voice and Data block fields shall be separate, but adjacent. Data blocks shall be located adjacent to any existing data wiring blocks. CNS/Network Development staff must approve the proposed locations of all blocks and/or plywood backboards before installation begins. Each cable shall be left with a service loop (“figure 8”) of approximately five (5) feet in the overhead cable pathway in the TR to facilitate future changes. At the 110-style cross-connect block, it is imperative that the twist of each individual pair be maintained up to the connection point. Only the minimum amount of sheath shall be removed at each connection point. There shall never be more than one half inch of unsheathed Category 5E UTP cable at the termination location. 5.4 Outlet Station Cable TerminationAt the communications outlet "service slack" of approximately six (6) inches shall be provided to facilitate future changes or re-termination. There shall never be more than one half inch of unsheathed Category 5E UTP cable at the workstation termination location. 6. LabelingEach individual cable and communications outlet shall be labeled. Cable labels shall be attached from between 6 and 9 inches from both cable ends. Labels must be machine printed with permanent black ink on laminated white label material. Installers must check with CNS staff for the next available cable I.D. in rooms where existing cables are located. Installers shall label each copper station cable and its associated 568A jack at the telecommunication outlet as well as at the associated 110-style cross-connect block designation strip with a unique identifier in compliance with the following format. The intended format and label material must be cleared or provided by CNS/ND before labeling begins.
In the TR, each punch-down connection shall be labeled on the designation strip and on the cable jacket with an appropriate, machine made, permanently attached label using the same scheme as above. 6.1 TR Designation StripsTR designation strips covers shall be clear plastic. Designation strips must be machine printed with permanent black ink on white background. 7. Compliance Testing
7.1 General Category 5E UTP cabling may be used for 10BaseT, 100BaseT, or Gigabit
Ethernet as well as all voice applications. CNS requires that all pairs
of all installed UTP wiring is tested for full compliance with Category
5E specifications regardless of intended use. Contractors are required
to provide documentation of test results for all conductor pairs of
each cable. Testing must be accomplished with a FLUKE DTX-1800
Cable Analyzer equipped with a DTX CHA001 Channel/Traffic Adapter For
CAT6/ClassE;
Version 6 (for both the MAIN TESTER UNIT and the Smart Remote) utilizing
with Software version 1.31; Hardware version 12, configured according
to CNS cable test parameters. Documentation of test results must include
all parameters listed below and be provided to and accepted by CNS
prior to cable activation for voice or data applications. Contractors
must contact CNS/Network Development, (510) 643-5954, for appropriate
cable test parameters and download procedures before any testing
begins.
After installation all cables shall be tested for Category 5E compliance. Tests shall be run from the TR 110 cross-connect termination through the installed communications outlet at the workspace end of the cable. 7.3 Testing ParametersAll four pairs shall meet or exceed the following measured specifications. Any cable not meeting or exceeding the following shall be inspected for anomalies, and re-terminated or replaced if necessary to ensure compliance. And compliance to the following specifications: ANSI/TIA/EIA-568-B.1 (4/01) (TR-42) Standards Proposal 4195-B (A)
8. ExceptionsCNS must approve any exceptions to the above specifications in writing before work begins. Communication cabling specifications and usage are dynamic in nature. CNS reserves the right to change specifications and practices as changes in technology warrant. The most recent published versions of the UCB/CNS UTP installation specifications can be found on-line at: It is incumbent upon consultants, designers, and cable installers to check with CNS prior to planning and installation to ensure that current specifications and practices are understood and met. Requests for clarification or exceptions to these specifications are to be directed to Communications and Network Services, (510) 643-5954. 9. Related Specifications
Version 8.2.5 Updated 8/1/2006 Send comments to msawyer@socrates.berkeley.edu Internal |
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