Crossover Pca Replacement Procedure - Nortel DMS-10 Series Quick Reference Manual

52 56K Crossover PCA Replacement Procedure (NT6M48xx)
Procedure 8
56K Crossover PCA (NT6M48xx) replacement
Step
8 Properly reroute all cables. Make sure all wires and cables are
routed so they are not pinched or in contact with the arc of the
fan blades.
9 To clear any alarms on the active processor. At the mainte-
nance terminal, enter:
>RSERR 00 (cr)
Alarms will clear if there are no faults.
10
To clear any alarms on the standby processor. At the mainte-
nance terminal, enter:
>DOS S RSERR 00 (cr)
Alarms will stay clear on the standby processor if there are no
faults.
11 After RSERR, alarms may reappear. Perform diagnostics on
both the standby and active processors. Enter: (at the terminal)
>DOS S TEST (cr)
>CP TEST STDBY (cr)
>TEST (cr)
>CP TEST ACT (cr)
Note: The tests will take several minutes to execute, and the program
test is the last test to run.
If all tests do not pass, use the BMC maintenance manual and/
or contact the next level of support.
12 Display all active alarms. Enter: (at the terminal)
>ERRMAP ALARMS (cr)
If active alarms are present, troubleshoot using the BMC main-
tenance manual and/or contact the next level of support.
13
Verify replacement PCA has corrected original error.
14 Test the polling function.
15
When all maintenance activities are complete, be sure to
replace the rear panel in its fully seated position and reinstall
the slotted pan head screws previously removed.
Also replace the front panel of the BMC if removed. Carefully
line up the four captive screws of the front panel with their
mounting holes. Tighten the captive screws; but do not bear
down.
The procedure is complete.
297-6201-500 BMCA001 and up
Description
Standard 02.01 July 1997