186 097-55501-01 Issue 6 – June 2003
1
TimeHub 5500 System Guide
5.3.4 EC Card
To replace the fuse on the EC card, follow the steps in Procedure 5-8, and
refer to Figures 5-4 and 5-7.
Procedure 5-8. EC Card Fuse 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 Using a GMT fuse puller, remove the fuse from the fuseholder labeled F1.
5 Replace the fuse with a 1 amp GMT fuse: when inserting the fuse, do not force; the fuse
should easily snap-fit into the fuseholder.
6 Insert the 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.
7 Wait for the Power lamp to light, the Shelf Power and Expansion Links lamps to light, and
the Fail and Alarm lamps to turn off.
8 Press the Cutoff pushbutton on the management card several times.
9 Verify that any alarm conditions are cleared.
10 Tighten the captive screws at the top and bottom of the card front panel.
End of Procedure
To Next Page
Loading...
Need help?
General
