Lucent Technologies FiberReach DDM-2000 - Page 1462

TAP-113
: Trouble Clearing 363-206-305
Page 6 of 6 Issue 3, June 2000
DDM-2000 F
IBER
R
EACH
W
IDEBAND
S
HELF
32.
NOTE:
Replacing the
SYSCTL
involves updating the internal memory on the
circuit pack.
Replace the
SYSCTL
(
DLP-501
).
33. Is
MN
alarm LED still lighted?
If
YES
, continue with
Step 34
.
If
NO
,
STOP. YOU HAVE COMPLETED THIS PROCEDURE
.
34.
NOTE:
The problem appears to be in the backplane wiring of the DDM-2000
FiberReach shelf. One way to verify this is to swap the
SYSCTL
and any
circuit pack with an inconsistent diagnostic indication with the
corresponding circuit packs in another FiberReach shelf. If the problem
moves with the circuit packs, it means that one or more of the circuit
packs is defective. If the problem stays with the original FiberReach shelf,
the entire assembly, but not the circuit packs, should be replaced. The
FiberReach shelf has a printed backplane and cannot be repaired in the
field.
NOTE:
If the
MN
LED is lighted and there is no
MN
alarm indication in the Alarm
and Status Report after the reset is complete, do the LED test using
the test-led command. Verify that the
MN
LED goes out during this
test. If it does not, replace the User Panel.
Check for broken or bent pins, shorted pins, etc. If you need technical
assistance, notify your supervisor, your local technical support organization, or
call Lucent Technologies RTAC, per local operating instructions.
35.
STOP. YOU HAVE COMPLETED THIS PROCEDURE
.