Paradyne 3160 Operator's Manual page 34

Installation
2-10
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
Self-Test Health
test (see
Self-Test:
Failed xxxxxxxx
F1
4. The top-level menu screen appears.
DSU ESF
Stat Test
F1
March 1999
in Chapter 4, Maintenance ).
F2 F3
Cnfig
F2 F3
3160-A2-GB21-80