Maintenance Scenarios - Nortel DMS-100 Series Maintenance Manual

Maintenance scenarios

Errors can arise during lines diagnostics. Error messages can arise during
use of the
>DIAG
error messages appear as part of ALT101 or LINE101 logs.
Tests can be aborted when the following conditions occur:
connection fail
PM not ready
no SMS P-side channel
check CTU/line card
PM reply time-out
PM reply that is not planned
software error
test alarm return code.
When a test is aborted because of the conditions mentioned earlier, Nortel
recommends the following actions:
1 Check the RCS for PM reply time-out and a PM reply that is not
planned. Post the RCS at the MAP terminal and enter the command
string
>QUERYPM FLT
defective equipment.
2 Try the test again for a PM not ready and no SMS P-side channel is
available. The following messages result from temporary conditions:
PM Not Ready
Another
being processed when the line diagnostic was requested.
No SMS P-side Channel
All DS-1 channels are BSY.
If, during this condition, repeated attempts cause the test to be repeatedly
aborted, you must make sure to insert the line card correctly.
3 A check CTU/line card message arises when the system cannot establish
communication between the DMS switch and the tested line card. The
possible causes for this problem are a lost line card or a defective CTU
card.
4 Check log reports for a software error. The DMS-100 switch must
generate PM180 and SWERR logs when software errors occur. The logs
indicate possible areas of defective software.
5 Test link A for a failed connection.
, , ,
>VDC >VAC >RES
. All faults present at the RCS appear. Replace the
command was entered for the line. This command was
>MAP
DMS-100 Family SMS Maintenance Manual XPM10 and up
Trouble isolation and correction 9-25
, , and
>CAP >LNTST
commands. The