Error Codes
SM 21 D432/D433
D432/D433
Fax Option
Type
C2550/C2530
Code Meaning Suggested Cause/Action
0-80
The line was disconnected
due to a timeout in V.34
phase 2 – line probing.
0-81
The line was disconnected
due to a timeout in V.34
phase 3 – equalizer
training.
0-82
The line was disconnected
due to a timeout in the V.34
phase 4 – control channel
start-up.
0-83
The line was disconnected
due to a timeout in the V.34
control channel restart
sequence.
 The guard timer expired while starting these
phases. Serious noise, narrow bandwidth, or
low signal level can cause these errors.
If these errors happen at the transmitting terminal:
 Try making a call at a later time.
 Try using V.17 or a slower modem using
dedicated tx parameters.
 Try increasing the tx level.
 Try adjusting the tx cable equalizer setting.
If these errors happen at the receiving terminal:
 Try adjusting the rx cable equalizer setting.
 Try increasing the tx level.
 Try using V.17 or a slower modem if the same
error is frequent when receiving from multiple
senders.
0-84
The line was disconnected
due to abnormal signaling
in V.34 phase 4 – control
channel start-up.
 The signal did not stop within 10 s.
 Turn off the machine, then turn it back on.
 If the same error is frequent, replace the FCU.
0-85
The line was disconnected
due to abnormal signaling
in V.34 control channel
restart.
 The signal did not stop within 10 s.
 Turn off the machine, then turn it back on.
 If the same error is frequent, replace the FCU.
0-86
The line was disconnected
because the other terminal
requested a data rate
using MPh that was not
available in the currently
selected symbol rate.
 The other terminal was incompatible.
 Ask the other party to contact the
manufacturer.
0-87 The control channel started  The receiving terminal restarted the control
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