User's Manual

5-27
Chart 2 Controller Removal and Replacement
PURPOSE
Use this procedure to remove and replace AE-37Y Controller.
SPECIAL TOOLS REQUIRED
None
STEP PROCEDURE
Wear ground straps according to local office procedures.
This is an in service procedure, however protection switching is dis-
abled. If another failure occurs during the performance of the proce-
dure, service will be interrupted.
1
Do you want to remove or install controller module?
If remove, go to step 2.
If install, go to step 6.
REMOVE:
2
Is controller installed in an OC3 radio?
If yes, go to step 3.
If no, go to step 5.
3
On front panel of controller module, press and hold ACO LT/OVRD
switch in
ACO LT (lamp test) position until TX, RX, and I/O ON LINE
LEDs on front of controller flash (approximately 5 seconds wait).
4 Release ACO LT/OVRD switch.
5
Remove controller module from shelf.
WARNING
Possibility of
Damage
to Equipment
CAUTION
Possibility of
Service
Interruption