Ricoh Type M12, Field Service Manual

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Code Meaning Suggested Cause/Action
0-22
The signal from the other end was
interrupted for more than the
acceptable modem carrier drop
time (default: 200 ms)
• Check the line connection.
• Replace the FCU.
• Defective remote terminal.
• Check for line noise or other line problems.
• Try adjusting the acceptable modem carrier
drop time.
Cross reference
Acceptable modem carrier drop time - G3 Switch
0A, bits 0 and 1
0-23 Too many errors during reception
• Check the line connection.
• Replace the FCU.
• Defective remote terminal
• 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
0-29
Data block format failure in ECM
reception
• Check for line noise or other line problems.
• Check the FCU - NCU connectors.
• Replace the NCU or FCU.
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.
Error Codes
53