• Code: 555
• Description: Transmitted PIN after receiving EOR.
• Causes: Line is faulty and Operator Call requested by RX side.

• Code: 570
• Description: Password or machine code did not match during remote diagnostic communication.
• Causes:

• Code: 571
• Description: Remote unit did not have the remote diagnostic function.
• Causes:

• Code: 580
• Description: Sub-address transmission to a unit that has their DIS bit 49 (NSF bit 155) OFF.
• Causes: Sub-address transmission to a unit that has no Sub-address function.

• Code: 581
• Description: Sub-address Password transmission to a unit that has their DIS bit 50 (NSF bit 156) OFF.
• Causes: Sub-address transmission to a unit that has no Sub-address function.

• Code: 601
• Description: ADF Door was opened during ADF transmission.
• Causes:

• Code: 623
• Description: No original was in the ADF. (Builtin dialer engaged)
• Causes: Operator removed the original from the ADF after dialing was completed. Original was not set properly in the ADF.

• Code: 630
• Description: Redial count over.
• Causes: No dial tone detected. Sensor dial tone is not detected. (destination dependent) Busy tone is detected. (destination dependent) T1 timer (35±5 sec.) elapsed without a signal from the receiver.