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6.16 Raceway System for Communications

Communications systems for all GSA buildings will meet the requirements of EIA/TIA Standard 569: Commercial Building Standard For Telecommunications Pathways And Spaces (and related bulletins). Communications systems for all GSA buildings will be designed by the Federal Technology Service (FTS) and installed by FTS or the tenant. Only the raceway system is part of the building design and construction. It consists of manholes, duct banks, entrance rooms and vaults, communications equipment room(s), closets, and the sleeves, ducts, conduits, raceways and outlets that comprise the horizontal pathways, backbone pathways and workstation outlets of the technology infrastructure.

Bonding for communication system must comply with EIA/TIA Standard 607: Commercial Building Grounding (Earthing) And Bonding Requirements For Telecommunications (and related bulletins).

Since FTS will manage the design of the communications systems, all criteria for routing and types of raceways must be obtained from FTS.

Communications Equipment or Frame Room. A communications equipment or frame room should be provided in every building. It must be sized to accommodate voice and data distribution and transmission equipment and support equipment with adequate equipment access clearances. FTS will provide detailed information on the communications equipment. A 5 ohm (maximum) signal ground and an emergency power receptacle should be provided in the room. The electrical service should be sized to accommodate the largest commercial switch of the type designated by FTS. The room should be shielded from radio and noise interference. (See Chapter 3: Architectural and Interior Design, Space Planning, Mechanical and Electrical Rooms for additional information on frame room requirements.)

Communications Closets. Communications closets shall meet the requirements of EIA/TIA Standard 607: Commercial Building Grounding (Earthing) And Bonding Requirements For Telecommunications (and related bulletins). See Chapter 3: Architectural and Interior Design, Communications Closets for additional information on communications closets. Communications and electrical closets should be located adjacent to each other. Communications closets must be stacked vertically. Communications closets should be sized to accommodate telephone terminal boards and broadband and narrowband data communications equipment, including cross-connects, light wave terminal cabinets, and equipment racks with patch panels and concentrators. Telecommunications closets will contain the mechanical terminations for that portion of the horizontal wiring system and portion of the backbone wiring system for the building area served by the closet. It may also contain the main or intermediate cross-connect for the backbone wiring system. The telecommunications closet may also provide the demarcation point or interbuilding entrance facility. Closets will have the capability for continuous HVAC service, and be equipped with fire protection per Chapter 7: Fire Protection Engineering.

Communications Raceways Raised Access Floor. The standard option for delivering communications services in Federal buildings is by laying the cable in a tray for main runs and then branching directly on the floor slab below the raised access flooring system.

Above Ceiling Delivery. Communications distribution in ceilings should be avoided and only used where no other alternative exists. Where necessary, communications cabling above ceilings must be run in cable tray and/or conduit.

Administration of Communications Infrastructure. Long-term use of the communications infrastructure requires administration of the systems including placing identification on all elements, keeping records and drawings on all elements, and task order information on work performed on all infrastructure elements. The administration system must maintain information on horizontal and backbone pathways, equipment rooms and closet spaces, cables, termination hardware, termination positions, splices, grounding system and bonding conductors. The information should be compatible with other building management and facility maintenance systems employed at the site.

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