Connecting the Control Unit to the Network Interface

Labeling Trunks

You can have up to 80 central office trunk jacks on the communications system (1 to 80). Follow this procedure to label each D2R or D8W cord, network interface jack, and control unit module jack.

Procedure: Labeling Trunks

1.Review the System Form 2c, System Numbering—Trunk Jacks to determine each central office trunk assignment on the control unit.

2.Place a green cord label (packaged with the basic carrier) at each end of every D2R or D8W cord.

The green label indicates the number of the central office trunk jack to which the cord is connected.

3.Label the jacks on the termination blocks.

4.Leave a copy of the System Form 2c in a secure place near the control unit.

4-16Labeling Trunks

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AT&T Release 2.0 manual Procedure Labeling Trunks