ADTRAN 25 manual Add Cabinet

APPENDIX C: System Additions or Changes

Add Cabinet

Add a cabinet if all the slots in the existing cabinets are full and you need to add a CP. Also, if the addition of a CP to a cabinet will cause the unit load to exceed 80, a cabinet must be added. The system can support a maximum of three cabinets.

Perform this task outside normal business hours, if possible, to avoid interfering with normal business operations.

Caution: Service is interrupted when the TDM Bus cable is connected to working cabinets.

1.M a k e sure that the new cabinet power switch is in the OFF position.

2.Stack the new cabinet on top of the existing cabinet(s).

3.Remove the front and upper back covers.

4.Label the connectors on the bottom back cover following the instructions under “Install System Cabinets” in Section 2.

5.On the backplane near the center, note an “address plug” installed in one of the positions marked 1 -3 on a black address connector. This indicates the cabinet number. If it is not in the correct position, pull it out and insert it in the correct position. (The new cabinet will be either Cabinet 2 or 3.) Take care to avoid bending the pins on the backplane.

C-8