Install Telecommunications Cabling
Station Wiring Design
SI Installation and Upgrades 417
June 2004
Station Wiring Design
The following hardware and cabling is used:
• Information Outlets on page 417 (modular wall jacks)
• Station Cables on page 417
• Closets on page 418
— Site locations
— Satellite locations
A brief description of each of the above listed items follows. Ordering information is not provided for
station cables and information outlets.
Information Outlets
Information outlets are 8-pin modular wall jacks. Most of the outlets are wired with push-on connections.
Information outlets are also available that connect to a double modular plug-ended 4-pair station cable
routed from the MDF, a site/satellite location, or an adapter.
Station Cables
For clarity, a station cable is either a 25-pair cable, multiple 25-pair cable, or 4-pair D-inside wire (DIW)
run from the equipment room, site/satellite location, or adapter to the information outlets. The following
station cables are available. See Figure 144, Example of Extending 4-Pair Station Cables,
on page 419.
25-pair station cable
— Use between the equipment room and site/ satellite locations or adapters. Use an
A25D cable (male to male) between the equipment room and satellite closet. Use a B25A cable between
the equipment room and site closet or adapter.
Multiple 25-pair station cable
— Use between the equipment room and site/satellite locations or
adapters. This cable consists of individually sheathed 25-pair cables with a factory-installed 25-pair
connector on each end. Use a male to female cable to connect between the equipment room and site
location or adapter. Use a male to male cable to connect between the equipment room and satellite
location. Staggered-finger cables are recommended for all multiple 25-pair station cables and are
available in both double-ended and single-ended types.
Single modular plug-ended 4-pair station cable
— Use this cable between adapters and information
outlets that require push-on connections. It can also be used when 4-pair station cables are field-
terminated on the 110-type terminal blocks in the equipment room or satellite closet and modularly
connected to information outlets. The station cables are available in the following lengths:
• 10 ft (3.05 m)
• 25 ft (7.62 m)
• 50 ft (15.24 m)
• 75 ft (22.86 m)
• 100 ft (30.5 m)
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