Installation
2-10 3160-A2-GB21-80
March 1999
If the self-test fails, the Failed screen appears for five seconds. The Fail LED
lights, and an eight-digit failure code (
xxxxxxxx
) is displayed for use by
service personnel to determine the cause of the self-test failure. The
DSU/CSU continues to try to operate. If you are in doubt about the results of
the self-test, use the Self-Test Health command to display the status of this
test (see

Self-Test Health

in Chapter 4,

Maintenance

).
F1
Self-Test:
Failed
xxxxxxxx
F2 F3
4. The top-level menu screen appears.
F1
DSU ESF
Stat Test Cnfig
F2 F3