Lucent DDM-2000 OC-3 User And Service Manual page 861

DLP-515
: Detailed Level Procedure
Page 3 of 4
6. If test is being performed on OLIU(s) installed in FUNCTION UNITS slot(s),
enter one of the following commands:
• rtrv-pm-line:fn-{a or b or c}-1 if service line is being tested.
• rtrv-pm-line:fn-{a or b or c}-2 if protection line is being tested.
• rtrv-pm-line:fn-{a or b or c}-all if both lines are being tested.
7. Has performance-monitoring report been obtained from all shelf locations
associated with optical span(s) being tested?
If NO, then continue with Step 8.
If YES, then proceed to Step 9.
8. Repeat this procedure from Step 3 at other locations.
9. Did report indicate errors?
If YES, then continue with Step 10.
If NO, then STOP. YOU HAVE COMPLETED THIS PROCEDURE.
10. Trouble may be in optical fiber and/or connections. Trouble may also be in
OLIUs. If the report indicated trouble when the report was obtained from the
near end of the span, trouble may be in the receive direction (see Figure 1). If
the report indicated trouble when the report was obtained from the far end of
the span, trouble may be in the transmit direction. Check optical fiber and
connections. Clean optical fiber connections [DLP-527]. If no trouble found in
the optical fibers, replace OLIU(s) [DLP-523] associated with the address
indicated in the report.
11. STOP. YOU HAVE COMPLETED THIS PROCEDURE.
DDM-2000 OC-3 M
Issue 2, February 2000
ULTIPLEXER
363-206-285