Nortel DMS-100 Series Maintenance Manual page 597

9. If unit 0 fails to load, replace the 6X73 (slot 18 of HIE shelf). Replace the
6X50 (slot 20 of HIE shelf) cards. Attempt to load unit 1.
10. If both units fail to load, replace the associated 6X50 cards in the host
XPM.
11. Power down and unseat the 2X59, 6X74, 2X09, and 2X06 cards in the
remote maintenance module (RMM) shelf. Attempt to load each unit.
12. Perform the following to determine if links to the OPM are defective:
a. QUERYPM the OPM. Note the node number of the OPM. Enter the
command string TRNSL C and note the host XPM or RCC.
b. Enter <pmdebug hosting XPM> to PMDEBUG the host XPM. An
example is of the PMDEBUG command is pmdebug LTC 0.
c. Enter <mp * * * * * cp e nn 0> to determine the internal node number.
In this command, nn equals the external node number obtained from
QUERYPM in step a.
d. Enter <sp * * * * * n>. This command accesses the signal processor
new messaging level.
e. Enter <n>. This command accesses the netlayer sublevel.
f. Enter <neta>. This command accesses the net address sublevel.
g. When prompted, enter the internal node number obtained in step
a.Item a, "QUERYPM the OPM. Note the node number of the OPM.
Enter the command string TRNSL C and note the host XPM or
RCC." on page 12-5
h. Enter the unit that corresponds to the messaging link in question.
i. Note the data link number specified as open.
j. Enter <* d>. This command accesses the dl data level.
k. Enter <v dl>. For this command dl equals the data link number
obtained in steps h and i. This command verifies if you have the
correct link. The output indicates the same type PM as the remote
you work with. An example of output is opm_fmt.
l. Enter <r dl>. This command displays hex values that correspond to
control bytes received from the remote. Enter Return two times to
halt the display.
m. Remove the DS-1 interface card for the link at the remote end.
n. Verify hex values equal #FF. If the hex values do not equal #FF, make
sure you remove the correct DS-1 interface card and the correct data
link number is monitored. If you removed the correct DS-1 interface
card and the correct data link number is monitored, check for
miswires or shorts on the link. To check for miswires or shorts on the
link, remove repeater cards until values equal #FF. Correct the
Advanced troubleshooting procedures 12-5
DMS-100 Family OPM Maintenance Manual XPM14 and up