Paradyne 7510 DSU manual Troubleshooting 1 Symptom Possible Cause Solutions

Messages and Troubleshooting

Troubleshooting

This DSU is designed to provide you with many years of trouble-free service. If a problem occurs, however, refer to Table 6-2 for possible solutions.

Table 6-2. Troubleshooting (1 of 2)

Symptom	Possible Cause	Solutions
Alarm LED is on.	One of several alarm	Refer to Table 4-2,Health and
	conditions exists. Health	Status Messages, for
	and Status displays the	recommended action.
	alarm condition.
Cannot access the	The terminal is not set up	H Check the cable and
DSU via the ATI.	for the correct rate or data	connections.
	format, or the DSU is	H Set up your terminal or PC
	configured so it prevents
		emulation as shown in
	access.
		Connecting to the Terminal Port
		in Chapter 2.
		H Power the DSU on and off and
		try again.
Device Fail appears	The DSU detects an	H Power the DSU off and on and
on the System and	internal hardware failure.	try again.
Test Status screen		H Contact your service
under Self-Test
		representative.
results.
An LED is not lit.	LED is burned out.	Run the Lamp test. If the LED in
		question does not flash with the
		other LEDs, then contact your
		service representative.
No power, or the	The power cord is not	Check that the power cord is
LEDs are not lit.	securely plugged into the	securely attached at both ends.
	wall receptacle and into the
	rear panel connection.
	The wall receptacle has no	H Check the wall receptacle power
	power.	by plugging in some equipment
		that is known to be working.
		H Check the circuit breaker.
		H Verify that your site is not on an
		energy management program.

Power supply has failed.

Replace power supply.

7510-A2-GB20-10 November 1997 6-3