Nortel DMS-100 Series Maintenance Manual page 612

12-4 Advanced troubleshooting procedures
9 If unit 0 fails to load, replace the 6X73 (slot 18 of HIE shelf) and the
10 If both units fail to load, replace the 6X50 cards that correspond, in the
11 Power down and unseat the 2X59, 6X74, 2X09, and 2X06 cards in the
12 Perform the following steps to determine if links to the RLCM are
297–8351–550 Standard 04.01 August 1999
6X50 (slot 20 of HIE shelf) cards. Attempt to load unit 1.
host XPM.
remote maintenance module (RMM) shelf. Attempt to load each unit.
defective:
WARNING
Possible service interruption
Use caution when you use PMDEBUG on a peripheral
that operates. Use only the commands shown.
a. Perform a QUERYPM on the RLCM. Note the node number. Enter
TRNSL C and note the XPM or RCC that hosts.
b. To PMDEBUG the host XPM, enter <pmdebug hosting XPM> (that
is, pmdebug LTC 0, ...).
c. To find the internal node number, enter <mp * * * * * cp e nn 0>
(where nn equals the external node number obtained from
QUERYPM in step a.).
d. Enter <sp * * * * * n>. This entry accesses the signal processor new
messaging level.
e. Enter <n>. This entry accesses the netlayer sublevel.
f. Enter <neta>. This entry accesses the net address sublevel.
g. Enter the internal node number obtained in step a. when the system
prompts for the number.
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 action accesses the dl data level.
k. Enter <v dl> (where dl equals the data link number obtained in steps
h and i). This action verifies you work with the proper link. The
output indicates the same type PM as the remote you work with (for
example, rlcm_fmt).
l. Enter <r dl> (same as step k). This displays hex values that
correspond to control bytes received from the remote. (To halt this
action, enter return twice.)
m. Remove the DS-1 interface card for the link at the remote end.