Gestetner A193 Service Manual page 754

1. ERROR CODES
The tables on the following pages show the error codes that will be printed on
the Service Monitor Report. See the Service Manual for the base machine for
instructions on how to print this report.
The meaning of the numbers in the Action column is as follows.
1. Check Layer 1 signalling with a protocol analyzer to determine the cause
of the problem. This may require assistance from a G4 specialist.
2. Repeat the communication. If the problem does not repeat itself, the prob-
lem was a temporary one caused by the user connecting the machine to
another interface. However, if the problem remains, there is a network
problem.
3. There is a network problem.
4. There is a network problem. Do the following:
•
Check the error bit rate of the network. If it is high, contact the network
and ask them to improve the line.
•
Check the network speed (is it 56 or 64 kbps), and make sure that the
bit switch setting is correct. You may also use the dedicated transmis-
sion parameters if this problem only occurs when dialling certain num-
bers.
•
Check that the user dialled the correct number.
5. There is a network problem, or a problem in the machine at the other end.
6. There is a problem in the machine at the other end; ask a technician to
check it.
7. The machine at the other end is not a Group 4 fax terminal.
8. The machine is not compatible with the machine at the other end. A com-
patibility test is needed.
Error codes related with the errors detected by the FCU are listed in the Serv-
ice Manual of the main body.
(A644) ISDN 3-1
ERROR CODES
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