| Capital Projects Home Page |
|---|
| Appendix XIV | Technical Specifications for the Installation of UTP Cabling |
| 1. | Introduction |
| Communication and Network Services (CNS) currently specifies the installation and use of Category 5 Unshielded Twisted Pair (UTP) cable to support voice and data communication services on the Berkeley campus. |
| The standard UTP communications cabling specified for use on the Berkeley campus shall be of a specific type and must be installed according to the following standards. The standards for communications cable may be more restrictive than those normally encountered by cable installers. In general the requirements include: |
| 2. | General |
| Cables shall be installed in unbroken segments from central utility closets to individual communication outlet locations. In the utility closets UTP 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 EIA/TIA 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 Type |
| All installed cable shall be 100 ohm, 4 pair, unshielded twisted pair (UTP), #24 AWG solid copper inside wire which meets or exceeds EIA 568, section 10 standards for UL Category 5 cable, (Belden part number 1583A, or equivalent). |
| Cable jackets shall be legibly marked with the following information: |
| Cable specification sheets for all cable must be provided to the Manager of Network Development/Communication and Network Services, (510) 643-5805, prior to installation. |
| Plenum rated cable shall be used in all plenum spaces and elsewhere as specified by CNS. The campus Fire Marshall shall have the final decision about the plenum requirement for any given space. Plenum rated cable is an acceptable superior substitute for riser rated material. |
| 4. | Physical Installation |
| 4.1 | General Topology |
| Cabling between utility closets 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 utility closet and the communications outlet. It is imperative that only the specified Category 5 cable be used in all cabling and that the factory twist be maintained throughout the runs. |
| 4.2 | Concealed Cabling |
| All cabling shall be installed inside walls or ceiling spaces wherever possible. Any exposed cable-run of more than three feet must be enclosed in appropriate raceway, as described below. |
| 4.2.1 | Raceways |
| Cable 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 L. Protective raceways must be permanently attached to underlying wall surfaces with appropriate wall anchors. |
| 4.2.2 | Wall Penetrations |
| Cable penetrations of walls or floors designed as fire barriers are to be sleeved with metallic conduit and packed with fire blocking material in compliance with campus and state fire codes. |
| 4.3 | Maximum Length |
| The maximum length of any cable run shall not exceed 90 meters, (295 feet). |
| 4.4 | Securing Cables |
| All 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 in any fashion that might prevent maintenance of or access to those facilities. 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 any tie-wraps or other securing straps must not be cinched excessively tight. Care should be taken to avoid routing cables within 18 inches of electrical noise generating devices such as transformers and lighting ballasts. |
| 5. | Cable Termination |
| Cables shall be terminated on 110-style cross-connect blocks in the utility closets and on communications outlets at the office locations. |
| 5.1 | 110-Style Cross Connect Blocks |
| The following 110-style punch blocks and associated materials are specified for use on the U.C. Berkeley campus. |
| Siemon S110AW1-100, 100 pair type 110 wiring block |
| Siemon S110AW1-300, 300 pair type 110 wiring block |
| Siemon S110-HLDR, Plastic label holder |
| Siemon S20A, White spool (mushroom) |
| AT&T 110AB2-100FT 100 pair type 110 wiring block |
| AT&T 100AB2-300FT 300 pair type 110 wiring block |
| 5.2 | Communications Outlets (CO's) |
| Each cable shall be terminated at the user location on the specified communications outlet. |
| 5.2.1 | Specifications |
| The specified communications outlets have spaces for multiple adapter inserts. Normally, only one will be used for data and one for voice applications. The data insert is to be the topmost space, or the left-most space for horizontal mountings. For voice applications the insert to be used in the lower or right-most space for horizontal mounting. A blank insert shall be installed in the unused spaces. |
| CNS has standardized on the use of several communications outlets for campus installations. Products from AMP, Panduit, and AT&T are authorized for installation. Clearance as to type to be installed must be obtained from the Manager of Network Development/Communication and Network Services, (510) 643-5805, prior to the installation of outlets. Communications outlets for installation at Berkeley shall consist of the following. |
| 5.2.1.1 | Flush Mount |
| For flush mounting in recessed wall boxes use: |
| 5.2.1.1.1 | AMP |
| AMP 558621-1 Unshielded installation kit (110 connectors) |
| AMP 555650-1 Single Gang Face Plate, or |
| AMP 555670-1 Double Gang Face Plate |
| 5.2.1.1.2 | Panduit |
| Panduit MBX4EI Non-adhesive base and cover or |
| Panduit MFPD6EI 6 position |
| Panduit MFPD4EI 4 position horizontal mount, vertical row |
| Panduit MEFP4EI 4 position, 2 rows of 2 |
| Panduit MBX4EI 4 position vertical mount, horizontal row |
| Panduit MFPD8EI 8 position, Double gang |
| 5.2.1.1.3 | AT&T |
| M13C-246 Modular Triplex Furniture Faceplate Elect. Ivory |
| M13C-262 Modular Triplex Furniture Faceplate Elect. White |
| M14C-003 Modular Quadplex Furniture Faceplate Elect. Black |
| M14C-270 Modular Quadplex Furniture Faceplate Elect. Gray |
| M10AF-246 Faceplate Frame Elect. Ivory |
| M10AF-262 Faceplate Frame Elect. White |
| M105FR1-246 One Outlet Modular Mounting Frame Elect. Ivory |
| M105FR1-262 One Outlet Modular Mounting Frame Elect. White |
| M106FR2-246 Modular Duplex Mounting Frame Elect. Ivory |
| M106FR2-262 Modular Duplex Mounting Frame Elect. White |
| M106FR4-246 Modular Quadplex Mounting Frame Elect. Ivory |
| M106FR4-262 Modular Quadplex Mounting Frame Elect. White |
| M10A-246 Single Outlet Faceplate Elect. Ivory |
| M10A-262 Single Outlet Faceplate Elect. White |
| M10A-270 Single Outlet Faceplate Elect. Gray |
| M12A-246 Duplex Outlet Faceplate Elect. Ivory |
| M12A-262 Duplex Outlet Faceplate Elect. White |
| M12A-270 Duplex Outlet Faceplate Elect. Gray |
| M14A-246 Quadplex Outlet Faceplate Elect. Ivory |
| M14A-262 Quadplex Outlet Faceplate Elect. White |
| M14A-270 Quadplex Outlet Faceplate Elect. Gray |
| M16A-246 Sixplex Outlet Faceplate Elect. Ivory |
| M16A-262 Sixplex Outlet Faceplate Elect. Ivory |
| M16A-270 Sixplex Outlet Faceplate Elect. Ivory |
| 5.2.1.2 | Surface Mount |
| For surface mounting use either: |
| 5.2.1.2.1 AMP |
| Wiremold 2348 Single Gang Box. or |
| Wiremold 2348-2 Double Gang Box, |
| and |
| AMP 558621-1 unshielded installation kit, (110 connectors) and appropriate: |
| AMP 555650-1 Single Gang Face Plate, or |
| AMP 555670-1 Double Gang Face Plate |
| 5.2.1.2.2 | Pandit |
| Panduit MBX4EI Non-adhesive base and cover or |
| Panduit MBX4EI-A 4 position |
| Panduit MBX2EI-A 2 position |
| 5.2.1.2.3 | AT&T |
| M101SMB-246 Single Outlet Box Elect. Ivory |
| M101SMB-262 Single Outlet Box Elect. White |
| M101SMB-270 Single Outlet Box Elect. Gray |
| M102SMB-246 Duplex Outlet Box Elect. Ivory |
| M102SMB-262 Duplex Outlet Box Elect. White |
| M102SMB-270 Duplex Outlet Box Elect. Gray |
| M104SMB-246 Quadplex Outlet Box Elect. Ivory |
| M104SMB-246 Quadplex Outlet Box Elect. White |
| M104SMB-246 Quadplex Outlet Box Elect. Gray |
| M106SMB-246 Sixplex Outlet Box Elect. Ivory |
| M106SMB-246 Sixplex Outlet Box Elect. White |
| M106SMB-246 Sixplex Outlet Box Elect. Gray |
| 5.2.1.3 | Blanks and Dust Covers |
| 5.2.1.3.1 | AMP |
| AMP 558513 Blank Insert |
| 5.2.1.3.2 | Pandit |
| Panduit MDC Dust Cover |
| Panduit MMB3EI-X 3 position blanks |
| Panduit MMB1EI 1 position |
| 5.2.1.3.3 | AT&T |
| M20AP-246 Front Snap-in (100 pk) Elect. Ivory |
| M20AP-262 Front Snap-in (100 pk) Elect. White |
| M20AP-270 Front Snap-in (100 pk) Elect. Gray |
| M81--246 Rear Snap-in (100 pk) Elect. Ivory |
| M81--262 Rear Snap-in (100 pk) Elect. White |
| M81--270 Rear Snap-in (100 pk) Elect. Gray |
| 5.2.2 | Location |
| Where possible, the communications outlet shall be located so that its 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 the Manager of Network Development/ Communication and Network Services, (510) 643-5805. Surface mounted outlets are acceptable if well secured. Recessed outlets 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. |
| 5.2.3 | Adapter Inserts |
| A 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 5, T568A wiring. It is critical that only those specified below be used. |
| 5.2.3.1 | AMP |
| AMP 557248-1 (Category 5, T568A wiring) |
| 5.2.3.2 | Pandit |
| Panduit MUJC588AEI 568A Outlet (jack) |
| 5.2.3.3 | AT&T |
| M100BH1-270 8 Position Jack Elect. Ivory |
| M100BH1-262 8 Position Jack Elect. White |
| M100BH1-270 8 Position Jack Elect. Gray |
| 5.3 | Utility Closet Station Cable Terminations |
| In the utility closet all cables shall be terminated on horizontally mounted 110 style cross-connect blocks firmly connected to a plywood backboard. Where necessary, a new 3/4" plywood panel shall be firmly anchored to the wall to accommodate mounting of the blocks. Voice and Data block fields shall be separated, but adjacent. Data blocks shall be located adjacent to any existing data wiring blocks. The proposed locations of all blocks and/or plywood backboards must be approved by CNS staff before installation begins. |
| Each cable shall be left with a service loop (slack) of approximately six inches at the 110 block 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 5 UTP cable at either the wiring closet or workstation termination location. |
| 6. | Labeling |
| Each individual cable and communications outlet shall be labeled. Cable labels shall be attached from between 6 and 9 inches from the cable ends and made with permanent black ink on laminated white labels. Installers should check with CNS staff for the next available suffix in rooms where existing cables are located. Installers shall label each copper station cable and it's associated 568A jack at the Telecommunication outlet as well as at the associated C-4 Connecting Block with a unique identifier consisting of the following format: |
| 1. | The Telecommunication Room Number where the station cable is terminated, ###. |
| 2. | The End User Room Number in which the four pair cable is terminated and the Telecommunication Outlet is located in, ###. |
| 3. | A three digit serial number reset to 001 for each room which sequentially identifies each Telecommunication Jack/Cable in a room, ###. |
| 4. | An alphanumeric, three place number, reset to 1 for each faceplate, which sequentially identifies whether the jack carries data ('D' designation) or voice ('V' designation). |
| 5. | Example of Dwinelle Office Building Level B, TDR, (IDF or MDF), 2228, user room 2205, faceplate number two, jack number 3 (data cable 2): |
| 2228- | 2205- | 002- | D2 |
| Serial Number | TDR Number | ||
| Voice or Data Line Number | Room Number |
| In the wiring closets, each punch-down connection is to be labeled on the designation strips and on the cable jacket with an appropriate, permanently attached, label using the same scheme as above. |
| 7. | Compliance Testing |
| 7.1 | General |
| Category 5 UTP cabling may be used for 10BaseT or 100BaseT Ethernet as well as voice applications. CNS requires that all pairs of all installed level five UTP wiring are tested for full compliance with Category 5 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 DSP LAN Cable Meter running Version 3 software formatted according to DCNS 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. Contact the Manager of Network Development/Communication and Network Services, (510) 643-5805, for appropriate cable test parameters and download procedures. |
| 7.2 | Testing Strategy |
| After installation all cables shall be tested for Category 5 compliance. Tests shall be run from the utility closet 110 termination through the installed communications outlet at the workspace end of the cable. |
| 7.3 | Testing Parameters |
| All 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. |
| Frequency | Attenuation |
| MHz | dB |
| 0.512 | 4.5 |
| 0.772 | 5.5 |
| 1.000 | 6.3 |
| 4.000 | 13 |
| 8.000 | 18 |
| 10.00 | 20 |
| 16.00 | 25 |
| 20.00 | 28 |
| 25.00 | 32 |
| 31.25 | 36 |
| 62.50 | 52 |
| 100.0 | 67 |
| Frequency | Attenuation |
| MHz | dB |
| 0.150 | 74 |
| 0.772 | 64 |
| 1.000 | 62 |
| 4.000 | 53 |
| 8.000 | 48 |
| 10.00 | 47 |
| 16.00 | 44 |
| 20.00 | 42 |
| 25.00 | 41 |
| 31.25 | 40 |
| 62.50 | 35 |
| 100.0 | 32 |
| 8. | Exceptions |
| Any exceptions to the above specifications must be approved in writing by CNS 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. It is incumbent upon 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 Communication and Network Services, (510) 643-5805. |
| Rev. 6.9 - November, 1997 |
|