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(3)
Communication errors (TX)
Code
Description
• Protocol failure in
33
V.34 sequence
• Busy tone while wait-
70
ing for initial identifica-
tion signal
• Timeout or modem
failure while detecting
2nd dialing tone
• Cannot dial due to
dialing/ringing conflict
• T1 timeout while wait-
ing for initial identifica-
tion signal when FAX
signal is not detected
• T1 timeout while wait-
71
ing for initial identifica-
tion signal after FAX
signal is detected
• Detected reverse
polarity while waiting
for initial identification
signal
• Received DCN in
72
phase B while waiting
for commands other
than DCN
• Received DIS or DTC
74
3 times while waiting
for response to TCF
• No response even
after sending TSI/
DCS and TCF 3 times
• Received FTT twice
even TCF has lowest
speed
• Reverse polarity while
76
waiting for signal
other than initial iden-
tification
Cause - Re: Remote, Li: Line, Lo: Local
Cause
Failure in remote
machine
Line failure
Failure in remote
machine
Line failure
Failure in remote
machine
Line failure
Interruption or fail-
ure in remote
machine
Failure in remote
machine
Line failure
Failure in FAX1
board
Failure in MFB2
board
Failure in remote
machine
Line failure
T-4
Re
Li
Lo
Try another remote
machine.
Try another line.
Try another remote
machine.
Try another line.
Try another remote
machine.
Try BACK to BACK
communication.
Check the remote
system and retry
TX.
Try another remote
machine.
Try another line.
Replace FAX1
board
Replace MFB2
board
Check the remote
system and retry
TX.
If same error will be
experienced sev-
eral times, set the
soft switch (MODE
082 Bit 3) 0.
Remedy
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