Fujitsu FLM 150 ADM, Maintenance And Trouble Clearing

Page: 89 / 198

3.75: TMGSW
Issue 9, May 1999 FNC and FNC Customer Use Only Vol. ll, Page 480.3-47
Maintenance and Trouble Clearing
FJTU-320-515-480
3.75 TMGSW
These messages indicate a switch in the timing reference:
TMGSW/PRS/STU/ST2/ST3/SIC/ST4/RES/FAIL/NA
3.76 TRCM
Table 3-73: TMGSW (Timing Reference Switch)—Transient Condition
AID
Type
Direction Probable Cause Suggested Corrective Action
SYNCIN NA A system timing reference
is detected. • The TCA-ENH unit is defective.
• Check the upstream ADM for optical channel
unit failure or removal.
• Check the fiber-optic path and perform trouble
analysis as needed.
Table 3-74: TRCM (Path Trace Mismatch)—Transient Condition
AID
Type
Direction Probable Cause Suggested Corrective Action
STS1 TRMT/RCV Incoming path
trace label does
not match
expected path
trace label. • The provisioning of the near-end expected path trace does
not agree with the provisioning of the far-end path trace.
Correct the provisioning that is in error. Do not change
expected trace based only on the basis of the incoming trace
value. This would defeat the purpose of this feature.
• If the path trace value provisioned at the far end is identical
to the provisioned expected trace at the near end, a
mismatch indicates a cross-connect error somewhere in the
path.
• If a cross-connect error is suspected in a ring configuration,
manually switch the channel to the other direction. If the
TRCM clears, check the cross-connects in the suspect
direction.