Paradyne 316x Troubleshooting Table F, Table F-1 Troubleshooting Symptom Possible Cause Solutions

Troubleshooting Table F

The ACCULINK 316x DSU/CSU is designed to provide you with many years of trouble-free service. However, Table F-1 gives you some direction if a

problem occurs. For problems other than those listed in the table, please contact your service representative immediately (see Chapter 1, Introduction, for more information).

Table F-1

(1 of 2)

Troubleshooting

Symptom		Possible Cause		Solutions
No power	1. The power cord is not securely plugged into		1.	Check that the power cord is securely
		the wall receptacle or rear panel connector.		attached at both ends.
	2.	The wall receptacle has no power.	2.	Check the wall receptacle power by plugging
				in some equipment that is known to be
				working.
Power-Up	The DSU/CSU has detected an internal hardware		Contact your field service representative.
Self-Test fails	failure.
Message LOS at	1. Network cable problem.		1.	Check that the network cable is securely
Net appears	2.	No signal is being transmitted at the far-end		attached at both ends.
		DSU/CSU.	2.	Check far-end DSU/CSU status.
	3.	T1 facility problem.	3.	Contact your T1 facility provider.
Message LOS at	1. DSX-1 cable problem.		1.	Check that the DSX-1 cable is securely
DTE appears	2.	No signal being transmitted from the DTE.		attached at both ends.
			2.	Check the DTE status.
Message OOF at	1. Incompatible framing format between the		1.	Check that the framing format for the network
Net appears		network and the DSU/CSU.		interface is correct.
	2.	Network cabling problem.	2.	Check that the network cable is securely
	3.	T1 facility problem.		attached at both ends.
			3.	Contact your T1 facility provider.
Message OOF at	1. Incompatible framing format between the		1.	Check that the framing format for the DSX-1
DTE appears		DSX-1 port on the CPE and the DSU/CSU.		(DTE) interface is correct.
	2.	DSX-1 cabling problem.	2.	Check that the DSX-1 cable is securely
				attached at both ends.
Message	1. Network cable problem.		1.	Check that your network cable is securely
Yellow at Net	2.	Far-end DSU/CSU/DTE has lost framing sync		attached at both ends.
appears
		on the T1 line.	2.	Check the status of the far-end device.
	3.	T1 facility problem.	3.	Contact your T1 facility provider.

3160-A2-GB22-10 December 1996 F-1