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097-55501-01 Issue 6 – June 2003 179
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Maintenance
5.2.2 Output Driver Card
To replace the output driver card, follow the steps in Procedure 5-2, and
refer to Figure 5-2.
5.2.3 Management Card
To replace the management card, follow the steps in Procedure 5-3, and
refer to Figure 5-3.
11 Tighten the captive screws at the top and bottom of the card front panel.
End of Procedure
Procedure 5-2. Output Driver Card Replacement
Step Action
1 Put on a properly grounded ESD wrist strap.
2 Using a #2 Phillips-head or Pozidrive screwdriver, loosen the captive screws at the top and
bottom of the card front panel.
3 Remove the card from the shelf.
4 Insert the replacement card into the shelf: ensure that the card aligns properly with its
mating backplane connector; push the card into place until it is fully seated into the
backplane connectors.
5 Wait for the Power lamp to light, the DS1 and/or CC lamps to light according to the output
connector cards installed, and the Fail and Alarm lamps to turn off.
6 Press the Cutoff pushbutton on the management card several times.
7 Verify that any alarm conditions are cleared.
8 Tighten the captive screws at the top and bottom of the card front panel.
End of Procedure
Procedure 5-1. Clock Card Replacement (Cont’d)
Step Action
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