Error Codes
SM 27 D393
Fax Option
Type C5000
(D393)
Code Meaning Suggested Cause/Action
 Check for line noise or other line problems.
 Try asking the other end to adjust their tx level.
 Try adjusting the rx cable equalizer setting
and/or rx error criteria.
Cross reference
Rx cable equalizer - G3 Switch 07 (PSTN)
Rx error criteria - Communication Switch 02, bits 0
and 1
0-30
The other terminal did not
reply to NSS(A) in AI short
protocol mode
 Check the line connection.
 Try adjusting the tx level and/or cable
equalizer settings.
 The other terminal may not be compatible.
Cross reference
Dedicated tx parameters - Section 4
0-32
The other terminal sent a
DCS, which contained
functions that the receiving
machine cannot handle.
 Check the protocol dump list.
 Ask the other party to contact the
manufacturer.
0-33
The data reception (not
ECM) is not completed
within 10 minutes.
 Check the line connection.
 The other terminal may have a defective
modem/FCU.
0-52
Polarity changed during
communication
 Check the line connection.
Retry communication.
0-55
FCU does not detect the
SG3.
 FCU firmware or board defective.
 SG3 firmware or board defective.
0-56
The stored message data
exceeds the capacity of the
mailbox in the SG3.
 SG3 firmware or board defective.
0-70
The communication mode
specified in CM/JM was
 The other terminal did not have a compatible
communication mode (e.g., the other terminal
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