Lucent Technologies 555-670-116 manual Technical Addendum, Maintenance Error Codes-Continued

MERLIN LEGEND Communications System Release 7.0			Issue 1
Pocket Reference 555-670-116			April 1999
Reference Documents			119
		Technical Addendum
	Maintenance Error Codes—Continued
	Error
	Code Description	Action

7401 TRK UPLINK MESSAGE ERROR:

Communication problems between processor and modules; unrecognized message from module to processor.

Test trunk with single-line telephone. If problem is not in trunk, replace module with one known to work. If problem is not seen with known working module, replace module and restart.

7402 LOOP CONTROL BIT NOT SET:

No loop current on outgoing call. If error occurs four times consecutively, and if automatic maintenance-busy is enabled with less than 50% maintenance busy, trunk is busied-out automatically.

Test trunk with single-line telephone. If problem is not in trunk, replace module with one known to work. If problem is not seen with known working module, replace module and restart.

7403 NO LOOP CURRENT:

Communication problems between module and CO. No loop current. If error occurs four times consecutively, and if automatic maintenance-busy is enabled with less than 50% maintenance busy, trunk is busied-out automatically.

Test trunk with single-line telephone. If problem is not in trunk, replace module with one known to work. If problem is not seen with known working module, replace module and restart.

7404 STUCK RINGING:

Communication problems between module and CO. If error occurs two times consecutively, trunk is busied-out automatically whether or not automatic maintenance-busy is enabled.

Test trunk with single-line telephone. If problem is not in trunk, replace module with one known to work. If problem is not seen with known working module, replace module and restart.

7801 NOT IN NORMAL OP MODE:

Module not in normal operation mode; reported in background module check.

Reset board. If problem persists, check module. Maintenance→Slot→ Slot Number→Reset

7802	SANITY INT NOT	Reset board. If problem
	GENERATED:	persists, check module.
	Applies only to modules with
	extension jacks.
7803	NO PORT BOARDS	None; delete entry from
	AVAILABLE:	transient log.
	Modules not present.
7804	INVALID SANITY	Reset board. If problem
	RESPONSE:	persists, check module.

Sanity test received invalid responses; applies only to modules with extension jacks.