Nortel Meridian 1 Series, Description

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Attendant console operation Page 41 of 64
Attendant Consoles Description
M1250 failure codes
A failure code will appear on the display screen in response to the detection
of a hardware fault. Refer to Table 3 for an explanation of failure codes and
possible solutions.
Table 3
M1250 failure codes (Part 1 of 2)
Failure code Reason What to do
20 H The 6818 RTC, U6, is faulty. Unplug the line cord and plug it in again. If the
failure code still appears, there is an electrical
fault in the console, and it should be returned.
Note: Log the failure code with the returned unit, as
the code gives an indication of which component has
failed.
10 H The RAM IC, U10, is faulty. Same as for 20H .
08H A key in column A is stuck. Unplug the line cord. Free the key that is stuck.
Plug in the line cord. If the failure code still
appears, the console is faulty and should be
returned.
09H A key in column B is stuck. Same as for 08H .
0AH A key in column C is stuck. Same as for 08H .
0BH A key in column D0 is stuck. Same as for 08H .
0CH A key in column D1 is stuck. Same as for 08H .
0DH A key in column D2 is stuck. Same as for 08H .