Error Log Entries and Test to Clear Values

Error Log Entries and Test to Clear Values

Table 62. CO Trunk Error Log Entries �
Error Type	Aux Data	Associated Test	Alarm Level	On/Off Board	Test to Clear Value
0*	0	Any	Any	Any	test port GGGVSpp sh r 1
1 (a)	57347	None
15 (b)	any	Port Audit Update Test (#36)
18	0	busyout trunk	WARNING	OFF	release trunk grp#/mbr#
130(c)		None	WARNING	ON	test port GGGVSpp sh r 2
257 (a)	50176	None
513 (a)	57364	None	MAJ/MIN/ WRN**	ON
769 (a)	57392	None	MAJ/MIN/ WRN**	OFF
1025 (e)	Any	Demand Diagnostic Test (#3)	MAJ/MIN/ WRN**	OFF	test port GGGVSpp sh r 2
1281 (e)	Any	Demand Diagnostic Test (#3)	MAJ/MIN/ WRN**	ON	test port GGGVSpp sh r 3
1537		Dial Tone Test (#0)	MAJ/MIN/ WRN**	OFF	test port GGGVSpp l r 2
2561 (d)	57345	None
2817 (a)	57360	None
2817 (a)	57393	None
2817 (d)	57484	Dial Tone Test(#0)	MAJ/MIN/ WRN	OFF	test port GGGVSpp l r 1
3073 (d)	57376	None
3329 (d)	57408	None
3329 (d)	57484	Dial Tone Test(#0)	MAJ/MIN/ WRN	OFF	test port GGGVSpp l r 1
3585 (d)	57424	None
*Run the Short Test Sequence first. If all tests pass, run the Long Test Sequence. Refer to the appropriate test description and follow the recommended procedures.
**Major alarms may be downgraded to Warning alarms based on the value used in the set options command.

Notes:

(a) These are in-line errors that have no specific test associated with them. Refer to the following table for an explanation and appropriate action.
(b) This is a software audit error that does not indicate any hardware malfunction. Run Short Test Sequence and investigate associated errors.
(c) This error type indicates that the Media Module has been removed or has been insane for at least 11-minutes. To clear the error, reinsert or replace the Media Module.
(d) Aux data 57345 - Single polarity ringing current

Aux data 57376 - No loop current on incoming call

Aux data 57408 - No tip ground detected on outgoing call

Aux data 57424 - No loop current on outgoing call

Aux data 57484 - No dial tone on outgoing call

These errors cause the Dial Tone Test (#0) to run and are only considered a problem if the Dial Tone Test fails (in which case Error Type 1537 will also show up). In this case, the trunk may be put in Ready-For-Service state (shown as disconnected by status command), which allows only incoming calls. Run the Dial Tone Test (#0) and follow its outlined procedures.

If error count associated with this error type is very high (i.e., 225) and if Alarm Status on the Hardware Error Report is n (not alarmed), then the existence of this error type indicates that, despite the fact that many in-line error messages have been received, all Call Seizure Tests have passed. Problems at the CO may cause this condition rather than problems with the PBX.

(e) If test fails after two repetitions, replace Media Module.

Check for the use of MFT/Range extenders. If there are extenders present, and there are no other complaints or maintenance errors against this trunk, then there is a good chance that Test #3 failed due to excessive loop current and may be ignored.

Table 63. CO Trunk Errors with No Tests �
Error Type	Aux Data	Error Description and Repair Action
1	57347	Port error. Ringing without ground. This error is detected on an incoming call on a ground-start CO trunk. The CO trunk Media Module has not detected a Tip ground before ringing current is detected. This may indicate that the ground detector is not working. However, the call will be accepted. Busyout the affected port, and run a long test. Observe the test results. If any tests fail, refer to the description of the tests and the associated error codes. Release the port. If users continue to report troubles, check for other errors and make test calls to determine whether the problem should be referred to the CO.
257	50176	Battery reversal detected. This is usually caused by the CO (often seen with step-by-step and cross-bar offices in connection with outgoing calls). This is detected if the direction of the loop current changes from normal to reverse for at least 40 msec. Could occur if the trunk was just installed and for some reason the Tip and Ring wires were reversed at the PBX. If battery reversals occur during dialing, wrong numbers may result. Refer problem to CO. Ask them to remove the battery reversal option.
513	57364	Ground detector stuck active. After several occurrences, an on-board minor alarm is generated. Run the short test sequence. If test aborts with Error Code 1000, disconnect Tip and Ring and repeat short test. If test still aborts, replace Media Module. If test passes, refer problem to CO. If any other error code is received, pursue that problem.
769	57392	CO not releasing after call is dropped from PBX end, or the loop is not open after a disconnect. After several occurrences, an off-board warning alarm is generated. Refer problem to CO.
2561	57345	Single polarity ringing current. This error results from abnormal ringing current, but does not prevent the incoming call from being accepted. One cause could be that the reverse current detector associated with the port is failing. (Will not be detected by any tests.) Another cause could be that normal current is not detected. In this case, neither incoming nor outgoing calls can be completed, and the dial tone test will also fail. The last cause could be that certain types of noise are present on the CO line during the silent period of ringing. First check for other errors. If the count for this error is very high (255), and all tests pass, then either the reverse current detector is defective or the CO line is noisy. If the CO line is suspect, make Tip and Ring observations. If the line is determined to be noisy, refer the problem to the CO. If the reverse current detector is defective, ignore this error.
2817	57360	Ground but no ringing. This error occurs on an incoming call on a ground-start trunk. If ringing is not detected within 5 seconds of the Tip being grounded, the call is still accepted. If the CO is of the No. 5ESS. switch type, ringing delays of more than 5 seconds during heavy traffic are fairly common. Check for other errors.
2817	57393	The loop is opening too slowly after a disconnect. This error indicates an on-board problem, although the trunk may be functional. Check for other errors.
3073	57376	No loop current on incoming call. The incoming destination has already answered and no loop current has been detected. If this is a hard fault, the dial tone test and all outgoing calls should also fail. Check for other errors.
3329	57408	Trunk error. No Tip ground detected on outgoing call. This error occurs when an attempt is made to seize a ground-start CO trunk for an outgoing call and Tip ground is not detected or the caller hangs up before Tip ground is detected. Busyout the affected port, and run a long test. Observe the test results. If any tests fail, refer to the description of the tests and the associated error codes. Release the port. If users continue to report troubles, check for other errors and make test calls to determine whether the problem should be referred to the CO. Busyout the affected port, and run a long test. If Dial Tone Test #0 passes, ignore this error. Release the port.
3585	57424	No loop current on outgoing call. This error occurs on attempt to seize a loop or ground-start trunk for an outgoing call. An error occurs if loop current is not detected or the caller hangs up before it is detected. Busyout the affected port, and run a long test. If CO Demand Diagnostic Test #3 passes and this error keeps occurring, refer problems to CO. Release the port.