Filter
Top Products
ACCULINK 316x DSU/CSU
F-2 December 1996 3160-A2-GB22-10
Table F-1
(2 of 2)
Troubleshooting
Symptom SolutionsPossible Cause
Message
Yellow at DTE
appears
DTE has detected an LOS or OOF condition. 1. Check the status of the DTE.
2. Check that the DSX-1 cable is securely
attached at both ends.
Message
AIS at Net
appears
1. Upstream DSU/CSU is transmitting AIS
(keep-alive signal).
2. The network is transmitting an AIS.
1. Check status of upstream DSU/CSU(s).
2. Report problem to carrier.
Message
AIS at DTE
appears
DTE is sending an AIS. Check DTE.
Message EER at
Net appears
T1 facility problem. Contact your T1 facility provider.
BPV LED is ON 1. Incompatible line coding format between the
DTE and DSU/CSU.
2. DSX-1 cable problem.
1. Check that the line coding format for the
DSX-1 Drop/Insert port (DTE) is correct.
2. Check that the DTE cable is securely attached
at both ends.
Message Failed #
#
# # # # # #
appears
Internal DSU/CSU problem. Record the 8-digit code, then contact your field
service representative.
SNMP Link Down 1. The SNMP manager configuration is
mismatched with the device configuration.
2. The SNMP manager’s link layer protocol is not
running.
1. Check that the configurations are matched.
2. Start the link layer protocol.
Invalid Number The modem cannot dial because the phone
number is invalid or there is no number in the
selected directory.
Check that the selected phone number is correct.
No Dial Tone The modem cannot dial because there is no dial
tone.
Check that the modem is connected properly.
Busy Signal The modem is receiving a busy signal.
Redial the phone number later
.
No Answer Tone The remote end does not answer within
45 seconds.
Redial the phone number later
.
Modem In Use The modem is in use.
Redial the phone number later
.