User`s guide

6. Monitoring and Troubleshooting
7990-A2-GB20-00 May 2002
6-21
DSL Hardware Revision:
The 3-digit hardware revsion level of the DSL
transceiver installed in the device.
DSL Line Code:
Displays SHDSL as the type of line code the device is using.
Troubleshooting
The unit is designed to provide many years of trouble-free service. However, if a
problem occurs, refer to Table 6-6, Troubleshooting, for possible solutions.
Table 6-6. Troubleshooting (1 of 2)
Symptom Possible Cause Solutions
ALARM LED is on. One of several alarm
conditions exists. Health and
Status displays the alarm
condition.
Refer to Table 6-1, Health and
Status Messages, for a
recommended action.
An LED is not lit that
should be lit.
LED is burned out.
Use Table 6-5, Front Panel
LEDs, to determine the
correct behavior of the LEDs.
Run the Lamp test. If the
LED in question does not
flash with the other LEDs,
then contact your service
representative.
Cannot access the
unit
via the ATI.
The terminal is not set up for
the correct rate or data
format, or the unit is
configured so it prevents
access.
Check the cable and
connections.
Ensure the unit is configured
properly. Verify IP address
and communication port
usage.
Reset the unit.
Device Fail
appears on the System
and Test Status screen
under Self-Test results.
The unit detects an internal
hardware failure.
Reset the unit.
Contact your service
representative.