66-TYPE HARDWARE
Note: If a 4-pair station cable length longer than 200 feet (61.0 m) is
required, a 451A in-line adapter (double-ended modular female
connector) is attached to the cable and a second 4-pair cable is
plugged into the adapter for the additional distance (see Figure
4-37). The 451A in-line adapter is available in grey (Comcode 103
942 272) or ivory (Comcode 103 786 240).
Figure 4-36. 4-Pair Single Modular Plug-Ended Station Cable
Figure 4-37. Example of Extending 4-Pair Station Cables
Closets
Site Locations
The site locations are closets that provide a point in the station wiring for the
administration of remote powering. Adapters are used at site locations to terminate the 25-
pair station cables and provide connection points (modular jacks) for power adapters and 4-
pair station cables.
258A AND BR2580A ADAPTERS
The 258A and BR2580A adapters (Figure 4-38) plug into a 25-pair female cable connector.
These adapters divide the 25-pairs of leads on the cable into six individual 4-pair (modular
4-61
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