Paradyne 8310 MVL, 8510 DSL manual 3. Minor Alarms 1 of Failure Type Action, Margin, Threshold

Diagnostics and Troubleshooting

Minor Alarms

Use Table 7-3 to determine the appropriate action to take for each Minor Alarm.

Table 7-3. Minor Alarms (1 of 2)

Failure Type Action

Config Error 1. Check the Selftest Results display by following the menu sequence:

Diagnostics → Selftest.

2. Do another Selftest (Reset) and check results.

± If the results are normal, the problem was transient. Log the results.

± If Selftest results still show configuration corruption, there is a card problem. The card's nonvolatile RAM should be erased and the configuration reentered. Perform a configuration download.

± If the configuration has not been saved, use reset and erase NVRAM to force the card to the factory default. Enter the basic default route to the MCC and reconfigure the card manually.

NOTE: The following are minor alarms where thresholds have been exceeded and

	are primarily indications of degraded quality on the DSL loop. They are not
	necessarily related to problems with the DSL card.
Margin		H If DSL speed is set to a Fixed Rate, you may choose to lower the
Threshold		speed in the direction indicated by the threshold alarm (Fixed Up
(A trap		Speed or Fixed Down Speed) to get a better Margin and improved
message is		error performance.
sent if margin		H If DSL speed is set to Rate Adaptive and the Margin Threshold is
falls below
		> 0, then this alarm is a warning that the loop has degraded. The
selected
		actual bit rate should still be above 10-7. This condition may be
value.)
		temporary due to high temperature or humidity/rain, or it may be
		permanent due to high noise from additional digital circuits installed in
		the same cable bundle.
		H If DSL speed is set to Rate Adaptive and the Margin Threshold is
		< 0, then this alarm is a warning that the loop has seriously degraded.
		The actual bit rate may be below 10-7. This condition may be
		temporary or permanent. However, if it persists, the loop may have to
		be reengineered for better performance by performing one of the
		following:
		± Remove bridge taps
		± Change cable gauge on a cable section
		± Run new cable
		± Remove other noise-generating digital circuits from the cable
		bundle

7-6 May 1998 8000-A2-GB26-00