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1. ERROR CODES

If an error code occurs, retry the communication. If the same problem occurs,
try to fix the problem as suggested below. Note that error codes 4-00, 01, 02,
and 10 only appear in the error code display and on the service report.
Code
Meaning
0-00
DIS/NSF not detected
within 40 seconds of Start
being pressed
0-01
DCN received
unexpectedly
0-03
Incompatible modem at
the other end
0-04
CFR or FTT not received
after modem training
0-05
Unsuccessful after modem
training at 2400 bps
0-06
The other terminal did not
reply to DCS
Suggested Cause/Action
Check the line connection.
Check the NCU - FCU connectors.
The machine at the other end may be incompatible.
Replace the NCU or FCU.
Check for DIS/NSF with an oscilloscope.
If the rx signal is weak, there may be a bad line.
The other party is out of paper or has a jammed printer.
The other party pressed Stop during communication.
The other terminal is incompatible.
Check the line connection.
Check the NCU - FCU connectors.
Try changing the tx level and/or cable equalizer
settings.
Replace the FCU or NCU.
The other terminal may be faulty; try sending to
another machine.
If the rx signal is weak or defective, there may be a
bad line.
Cross reference
Tx level - NCU Parameter 01 (PSTN)
Cable equalizer - G3 Switch 07 (PSTN)
Dedicated Tx parameters - Section 4
Check the line connection.
Check the NCU - FCU connectors.
Try adjusting the tx level and/or cable equalizer.
Replace the FCU or NCU.
Check for line problems.
Cross reference
See error code 0-04.
Check the line connection.
Check the FCU - NCU connectors.
Try adjusting the tx level and/or cable equalizer
settings.
Replace the NCU or FCU.
The other end may be defective or incompatible; try
sending to another machine.
Check for line problems.
Cross reference
See error code 0-04.
6-1
ERROR CODES

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