Technician’s Handbook
98
Test Line Indicator LEDs
After the maintenance person enters a command sequence, the MCC
LEDs display the results as explained in the following table.
NOTE:
Failure of any test line command sequence necessitates using more sophisti-
cated maintenance tools.
Table 17: Test Line Status Indicator Codes
Code
Meaning
PA
The attempted operation was successful (pass).
FA
The attempted operation was unsuccessful (fail).
(blank) System is waiting for command input.
II
Test was inconclusive.
E5
Invalid command or device location entered; only those commands
in Table 16 are acceptable.
bb
Device was busy. Try again later.
7E
An invalid physical location number was entered. Enter bay number
(01), slot number (04), and circuit number (06).
FF
Unknown error. Attempt operation again - ensure correct use of
command codes (see Table 16).
1E
Error in acquiring the software ID of the test line. Attempt operation
again - ensure correct use of command codes (see Table 16). If
necessary, use maintenance terminal or console.
2E
Possible software error. Attempt operation again - ensure correct
use of command codes (see Table 16). Use maintenance terminal
or console if necessary.
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