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ACCULINK 317x E1 DSU/CSU
4-2 December 1996 3170-A2-GB20-20
Overview
The E1 DSU/CSU can detect and report faults, and
perform diagnostic tests. These features ensure that your
E1 DSU/CSU is giving you optimum performance in your
network.
Self-Test Health
Use the Self-T
est Health command to display the
results of the power
-up self-test. Possible messages are
listed in Table 4-1. See Chapter 2, Installation, for more
information about power-up self-test.
To display power-up self-test results,
1. Press F1 to select Stat from the top-level menu
screen.
F1
DS
U E
1 CEPT
Stat Test Cnfig
F2
F3
2. From
the Status screen, press F2 to select ST
est.
F1
Status:
DevHS STest Perf
F2
F3
3. V
iew the results of the last power
-up self-test. If
no problems were found during power-up, the
following message appears.
F1
SelfTst Health:
Passed
F2
F3
Table 4-1
Self-Test Health Messages
Message
Description
Passed No problems were found during power-up.
CPU fail The central processing unit failed internal testing.
DTE E1 fail The unit failed to internally loop data on the DTE circuit.
Failure xxxxxxxx An 8-digit hexadecimal failure code is provided for service personnel.
LCD fail The front panel liquid crystal display (LCD) failed.
Memory fail The unit failed program checksum verification.
NET E1 fail The unit failed to internally loop data on the network circuit.
Device fail One or more of the unit’s integrated circuit chips failed to pass internal device level testing.
HDB3/LOS fail The unit failed to encode data properly or to detect Loss Of Signal.
Alarm fail The unit failed to transmit AIS or to detect an RAI alarm.
DSU fail The unit failed to internally loop data on the DSU.
DSU Port
n
fail
Port’s integrated circuitry failed to pass device internal testing.
Unknown Exp Dev The unit is not able to recognize the expansion device connected to the main circuit card.