Troubleshooting - Paradyne 3160-A4 Operator's Manual

Paradyne acculink dsu/csu data service unit models 3160-a4, 3161, 3164-a2, and 3165-a4 operator's guide
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7. Monitoring and Troubleshooting

Troubleshooting

Use
occurs.
For problems other than those listed in the table, please contact your service
representative.
Table 7-7.
7-16
Table 7-7,
Troubleshooting, to determine your course of action if a problem
Troubleshooting (1 of 3)
Symptom
Possible Cause
DTE is sending an AIS.
AIS at DTE
message appears
1. Upstream device is
AIS at Network
message appears
transmitting an AIS.
2. The network is transmitting
an AIS.
BPV LED is ON
1. Incompatible line coding
format between the DTE and
the DSU/CSU.
2. DTE Drop/Insert (DSX-1)
cable problem.
Busy Signal
The modem is receiving a busy
signal.
Facility problem.
EER at Network
message appears
Internal DSU/CSU problem.
Failure
message appears
followed by an
8-digit code
Invalid Number
The modem cannot dial because
the phone number is invalid or
there is no number in the
selected directory.
1. DTE Drop/Insert (DSX-1)
LOS at DTE
message appears
cable problem.
2. No signal being transmitted
from the DTE.
1. Network cable problem.
LOS at Network
message appears
2. No signal is being transmitted
at the far end.
3. Facility problem.
March 2001
Solutions
Check the DTE.
1. Check the status of the
upstream device(s).
2. Contact your facility provider.
1. Check that the line coding
format for the DTE Drop/Insert
(DSX-1) interface is correct.
2. Check that the DTE cable is
securely attached at both
ends.
Redial the phone number later.
Contact your facility provider.
Record the 8-digit code, then
contact your service
representative.
Check that the selected phone
number is correct.
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 network cable
is securely attached at both
ends.
2. Check the far-end status.
3. Contact your facility provider.
3160-A2-GB24-10

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