| Capital Projects Home Page |
|---|
| Division 16 Electrical |
|---|
| 16-9 | Voice Communications Wiring Standards |
| A. | Introduction |
| This section provides specific voice communications wiring standards for the campus telephone system. Voice communications wiring can be station, vertical or horizontal riser, underground, or aerial feeds. The twisted pair wiring may range from two pair to 1200 pair cable supporting analog, digital, and data services. The wiring standards include mounting backboards, punch down blocks, D-rings, station jacks, cross connects, and jumper cables. Variations on the specifications for voice wiring requirements may be proposed but must not be implemented without review and approval from the University's project manager who will consult with Telecommunications on any proposed deviations from this standard. |
| B. | Wiring Specifications |
| Voice communications wiring uses a radial cabling configuration to connect outlets to the communication service distribution closet. In the radial configuration, communication cables connect the outlet to the punch down block in the communications service distribution closets like spokes to the hub of a wheel. In some cases, telephone electronics may be located in the communications service distribution closets in support of specific voice communication services to the outlet. |
| 1. | Station Wiring Specifications: |
| a. | Non-plenum wiring must consist of a minimum of one category three cable with four pair (eight conductor) 24 gauge wire (AT&T standard) for all distribution outlets. |
| b. | Plenum station wiring must consist of a minimum of one category three cable with four pair (eight conductor) 24 gauge wire (Champlain PVC Jacket plenum/AT&T standard) for all distribution outlets. |
| 2. | Station Jack Specifications: |
| a. | Telephone RJ11 jacks shall be six conductor duplex (AT&T M-series standard) at all voice outlets. Color should match outlet faceplates. |
| b. | Telephone RJ45 data jacks shall be eight conductor duplex (AT&T M-series standard) at all data outlets. Color should match outlet faceplates. |
| 3. | Station Cable Testing: Station cable pair shall be tested for end-to-end continuity from the station jack to the communication punch down block located in the communications service distribution closets. |
| 4. | Station Cable Labeling: Each individual station cable pair and station jack shall be labeled identically. The labels for each station cable at the punch down block in the CSDC shall consist of the room number with a dash suffix to distinguish multiple outlets followed by a dash suffix of either a D for data or T for telephone. For example, the first telephone voice connection for room 235 would be labeled 235-1-T, the next voice connection 235-2-T. A telephone data connection would be labeled 235-1-D. |
| 5. | Station Cable Installation: All station cable shall be dressed neatly and physically secured to the punch down blocks and jacks to prevent accidental dislocation or damage. It is not permissible to secure cable to gas, plumbing, fire sprinklers, or steam pipes. Station cable shall not be secured to other utility structures in any fashion that might prevent maintenance or access to other facilities. |
| C. | Cable Terminations |
| All station and riser cable terminations shall be on punch down blocks (AT&T 66M standard) mounted on brackets (AT&T 89B standard). Brackets shall be mounted on the appropriate backboard unless the block is on a wiring frame. Punch down blocks shall be installed from left to right per AT&T/Pac Bell standards. All cable shall be dressed and installed neatly. No more than 8" of the outside sheath shall be removed from the cable. |
| D. | Wall Penetrations |
| Penetration of walls 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. |
|
|