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8. Troubleshooting
8-12 December 2002 9700-A2-GB20-20
Device Problems
Table 8-2. Device Problems
Symptom Possible Cause Solutions
Cannot access the unit
or the menu-driven
user interface.
Login/password is incorrect,
COM port is improperly
configured, or the unit is
otherwise configured so it
prevents access.
Reset the unit (see
Resetting
the Unit and Restoring
Communication
on page 8-3.)
Contact your service
representative.
Failure
xxxxxxxx
appears at the top of
the System and Test
Status screen for
Self-Test Results.
The unit has detected an
internal software failure.
Record the 8-digit code from
the System and Test Status
screen.
Reset the unit and try again.
Contact your service
representative and provide the
8-digit failure code.
No power or the LEDs
are not lit.
The power cord is not
securely plugged into the
wall receptacle and the rear
panel connector.
Check that the power cord is
securely attached at both ends.
The wall receptacle has no
power.
Check the wall receptacle
power by plugging in other
working equipment.
Check the circuit breaker.
Verify that your site is not on
an energy management
program.
Power-On Self-Test
fails. Only Alarm LED
is on after power-on.
The unit has detected an
internal hardware failure.
Reset the unit and try again.
Contact your service
representative.
Return the unit to the factory
(refer to
Warranty, Sales,
Service, and Training
Information
on page A of this
document).
Receiving data errors
on a multiplexed DLCI,
but frame relay is okay.
Frame Relay Discovery is
being used for automatic
DLCI and PVC
configuration.
The equipment at the other
end is not frame relay
RFC 1490-compliant.
Change the DLCI Type for each
network DLCI from Multiplexed to
Standard, turning off multiplexing.