Fault Clearing Process - Nortel 1000E Maintenance Manual

Page 64 of 162 Clearing faults

Fault clearing process

553-3041-500 Standard 1.00
To clear a fault in the CS 1000E, follow the steps in Procedure 3.
Procedure 3
Clearing a fault in the CS 1000E
1 Observe and record all fault indicators, system messages, and user
reports.
2 Look up all system messages in Software Input/Output: System
Messages (553-3001-411).
The interpretation of the message can identify faulty equipment and tell
the user what action to take to clear the problem. If the user cannot clear
the fault using a Maintenance Application or through information in the
Software Input/Output: Maintenance (553-3001-511), follow the process
in this chapter to isolate and clear the fault.
3 If the system messages are not current or seem incomplete, review
previous messages or initialize the system for information on the current
status, as required.
4 Try to enable or test disabled equipment.
5 Software re-enable cards by disabling and then re-enabling them. When
the cause of a fault is not clearly evident, perform a software test to help
identify the problem.
CAUTION WITH ESDS DEVICES
Wear an antistatic wrist strap when handling circuit
cards to prevent damage caused by static discharge.
6 Software disable the circuit cards, then hardware re-enable them by
unseating and then reinstalling the cards.
Note: To unseat a circuit card, unscrew all faceplate screws holding the
card in place. (Each circuit card has two screws except for the Drive
Carrier card, which has four). Then use the faceplate latches to eject the
card. When reseating a circuit card, ensure to latch it, then retighten all
screws.
September 2004