AT&T 75 - Station Circuit Distribution from Equipment Room

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110-TYPE HARDWARE

The 110A-type terminal block that can be used in the satellite closet is the 110AE1-75FT. It

must be field-terminated to both the white and blue fields.

The 300-pair 110P-type terminal blocks that can be used in the satellite closet are the

110PE1-300CT, 110PE1-300CT/FT, and 110PE1-300FT. The 110PE1-300CT is connectorized

on both the white and blue fields. The 110PE1-300CT/FT is connectorized on the white field

and must be field-terminated on the blue field. The 110PE1-300FT must be field-terminated

on both the white and blue fields.

The 900-pair 110P-type terminal blocks that can be used in the satellite closet are the

110PE1-900CT/FT and the 110PE1-900FT. The 110PE1-900CT/FT is connectorized on the

white field and must be field-terminated on the blue field. The 110PE1-900FT must be

field-terminated on both the white and blue fields.

Station Circuit Distribution From Equipment Room

The following information should be helpful in explaining the station circuit distribution

from the equipment room to the information outlets for new wiring installations. Diagrams

are provided to show the options for running and connecting the station cables.

If most of the voice terminals that require remote powering are within 250 feet (76.2 m) of

the equipment room, 4-pair station circuits are run from the equipment room to the

information outlets. If this is not the case or if the customer requires 2-point

administration, 3-pair station circuits are run to satellite locations. From the satellite

locations, 4-pair station circuits are run to the information outlets.

4-Pair Station Circuits

Four-pair circuits can be run directly from an equipment room cross-connect field to a 258A

or BR2580A adapter as shown in Figure 3-75. Four-pair station cables (DIW) connect the

adapter to the information outlets.

The 4-pair DIW station cables can be run directly from the equipment room to the

information outlets if 4-pair terminal blocks are used in the Distribution Field (see Figure

3-76). The station cables must be field-terminated to the 110 terminal blocks. If modular

plug-ended station cable is to be used, an adapter can be connected directly to the 110

terminal block connectors (see Figure 3-77).

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