Paradyne 7510 DSU manual Resetting the DSU, Displaying DSU Identity Information

Messages and Troubleshooting

Table 6-2. Troubleshooting (2 of 2)

Symptom

Possible Cause

Solutions

Not receiving data;	H DDS line rate/speed has	H Verify that your subscriber loop is
DSU is not	changed.	running at 56 or 64 CC kbps.
responding.	H Excessive BPVs causing	H Verify that the DSU is set to the
	DSU to become stuck in	same rate as your subscriber
	Autobaud mode.	loop. (The DSU's rate is
	H Excessive Loop Loss	displayed on the Network
	causing DSU to become	Interface Status screen.)
	stuck in Autobaud mode.	H If getting Excessive BPVs, verify
		that you do not have a bad cable.
		If the cable is good, contact the
		network provider.
		H If getting excessive Loop Loss
		(dB) indications, install a higher
		quality cable. Refer to Table D-2,
		Model 7510 DSU LADS
		Connection Distances, in
		Appendix D.
		H If the DDS Line Rate (Kbps) field
		shows Autobaud, the DSU may
		be stuck in Autobaud mode.
		Configure Line Rate (Kbps) for
		56 or 64 kbps.
		H Run Loopback tests. Refer to
		Running Network Tests in
		Chapter 5.
Power-Up Self-Test	The DSU has detected an	H Reset the DSU and try again.
fails. Only Alarm	internal hardware failure.	H Contact your service
LED is on after
		representative.
power-up.

Resetting the DSU

The DSU can be reset locally or remotely.

To reset the DSU, follow this menu selection sequence:

Main Menu → Control → Reset Device

The DSU reinitializes itself, performing a Device Self-Test. Refer to Table 4-3,

Self-Test Results Messages.

Displaying DSU Identity Information

To display the DSU's system name, location, contact, serial number, model number, and software and hardware revision numbers, follow this menu selection sequence:

Main Menu → Status → Identity

6-4 November 1997 7510-A2-GB20-10