Troubleshooting An Rts Failure - Nortel DMS-100 Series Maintenance Manual

10-10 Advanced troubleshooting procedures
13 Check for bent pins behind the 6X51, 6X52, 6X53, 6X73, and 6X50
14 If the RLCM-EDC fails to load, SWACT the line group controller

Troubleshooting an RTS failure

Implement the RTS FORCE command if the RLCM-EDC fails to RTS. The
following procedure describes the RTS FORCE procedure.
1 Check logutil for RTS failure reasons.
2 Replace cards on the card list given at the MAP level or in the logs.
3 Unseat the NT6X51, NT6X52, and NT6X53 cards from unit 1. Unseat
4 If unit 0 fails to RTS, reseat the cards into unit 1. Unseat the NT6X51,
5 If the RLCM-EDC returns to service (RTS) and a C-side busy (CBsy)
6 If the RLCM-EDC RTS and a system busy (SysB) follows, a defective
7 If both units fail to RTS, contact the next level of support.
297-8381-550 Standard 02.02 April 1999
DMS-X control byte
EOM
ESC
If values equal the values in the table, the link functions. If values do
not equal values in the table, the link or host equipment is defective.
If values are correct, remove the loopback, verify that values equal
#FF and reseat the DS-1 interface card. If values are not correct,
check the loopback again. Verify that the loopback looped correctly,
troubleshoot the link or switch the link with the nonmessaging link at
both ends. Verify that proper hex values are present.
q. Enter <* * mp>.
r. Enter <quit>.
cards. Verify the connector on slot 5 of each shelf on the backplane is
secure.
(LGC). Contact the next level of support.
the NT6X50 (slot 20 of HIE shelf), NT6X73 (slot 18 of HIE shelf) and
the NT2X70 (slot 25 of the HIE shelf) cards. Attempt to RTS FORCE
unit 0.
NT6X52 and NT6X53 cards from unit 0. Unseat the NT6X50 (slot 19 of
HIE shelf), NT6X73 (slot 17 of HIE shelf), and NT2X70 (slot 22 of the
HIE shelf) cards. Reload unit 1 and attempt a RTS FORCE.
follows, SWACT the LGC and attempt again.
NT6X54 card, line card or drawer can be present. Check logutil for a
possible card list.
Value Meaning
#4B End of message
#4B Escape character