INSTALLATION

4-Pair Cable Terminations

Each 4-pair cable supports one station (Figure 2-28).It connects to a wiring block on a 858A Adapter.

1.Run the 4-pair cable through the rings at the top of the 617A Panels.

2.Cut down the leads starting with Pin 1 of the wiring block located beside the modular jack (Figure 2-28).

Wiring Block

DIW Cable

Pin No.

Color Code

1

W-BL

2

BL-W

3

W-O

4

O-W

5

W-G

6

G-W

7

W-BR

8

BR-W

3.Using a felt-tipped pen, record the building wiring destination on the wiring block caps.

4.Repeat the process until all of the 4-pair building cables are connected to the SIP. Some spare adapters should be left on the SIP to accommodate growth.

5.Feed the six cables for each adapter into the two purse lock clips at the adapter. Twist the clips closed.

6.Document the connections you have made on the Voice and Data Station Records Form (Figure 2-26).

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ADTRAN 25 manual Pair Cable Terminations