Paradyne 9788, 9720 manual Device Problems Symptom Possible Cause Solutions

8. Troubleshooting

Device Problems

Table 8-2. Device Problems

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

8-12 December 2002 9700-A2-GB20-20