Troubleshooting - Paradyne 3160-A3 Operator's Manual

4. Maintenance

Troubleshooting

The DSU/CSU is designed to provide you with trouble-free service. However,
Table 4-6,
For problems other than those listed in the table, please contact your service
representative.
Table 4-6.
4-14
Troubleshooting, gives you some direction if a problem occurs.
Troubleshooting (1 of 3)
Symptom Possible Cause
No power 1. The power module is not
securely attached.
2. The wall receptacle has no
power.
Power-Up The DSU/CSU has detected an
Self-Test fails internal hardware failure.
Message LOS at 1. Network cable problem.
NET appears
2. No signal is being transmitted
at the far-end.
3. Facility problem.
Message LOS at 1. DTE Drop/Insert (DSX-1)
DTE appears cable problem.
2. No signal being transmitted
from the DTE.
Message OOF at 1. Incompatible framing format
Net appears between the network and the
DSU/CSU.
2. Network cabling problem.
3. Facility problem.
Message OOF at 1. Incompatible framing format
DTE appears between the Drop/Insert port
on the customer premises
equipment and the
DSU/CSU.
2. DTE Drop/Insert (DSX-1)
cabling problem.
February 2001
Solutions
1. Check the power module
attachment.
2. Check the wall receptacle
power by plugging in some
equipment that is known to be
working.
Contact your service
representative.
1. Check that the network cable
is securely attached at both
ends.
2. Check the far-end status.
3. Contact your facility provider.
1. Check that the DTE
Drop/Insert (DSX-1) cable is
securely attached at both
ends.
2. Check the DTE status.
1. Check that the framing format
for the network interface is
correct.
2. Check that the network cable
is securely attached at both
ends.
3. Contact your facility provider.
1. Check that the framing format
for the DTE Drop/Insert
(DSX-1) interface is correct.
2. Check that the DTE
Drop/Insert (DSX-1) cable is
securely attached at both
ends.
3160-A2-GB21-90