Power-Up Self-Test - Paradyne 3350 User Manual

ACCULINK 3350 E1 NTU

Power-Up Self-Test

After you connect the E1 NTU to a power source, the
unit performs the power-up self-test to ensure that it is in
good working order. The E1 NTU performs this test on
itself upon power-up or after a device reset, unless it has
been disabled by the Self-Test configuration option (see
Appendix C, Configuration Options).
The self-test includes a basic processor test, a limited
memory test, a code checksum test, and basic verification
tests of the internal components. The front panel LCD
displays the progress and pass/fail status of these
power-up tests.
The power-up self-test consists of the following steps:
1. Once the E1 NTU is plugged in, the In Progress
screen appears and the Fail LED blinks ON and
Off continuously.
Self-Test:
In Progress
F1
OK FAIL TEST SIG1 SIG2 OOF
NETWORK
2. All the LEDs then start to flash simultaneously in
the pattern twice ON, then Off. Then, the LCD
begins to flash characters and numbers in the same
pattern, alternating with the flashing LEDs.
3. If the self-test is successful, the Passed screen
appears for one second, the Fail LED turns Off
and the OK LED lights.
Self-Test:
Passed
F1
OK FAIL TEST SIG1 SIG2 OOF
NETWORK
2-8
F3
F2
ALRM SIG OOF ALRM PDV BPV
G.703
495-14750
F2 F3
ALRM SIG OOF ALRM PDV BPV
G.703
495-14751
June 1996
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 AT&T Paradyne personnel to determine the
cause of the self-test failure. The E1 NTU
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 the Self-Test Health section in Chapter 4,
Maintenance).
Self-Test:
Failed xxxxxxxx
F1 F2
OK FAIL TEST SIG1 SIG2 OOF ALRM SIG
NETWORK
4. The top-level menu screen appears.
E1 HDSL NTU
Stat Test
F1 F2
OK FAIL TEST SIG1 SIG2 OOF ALRM SIG
NETWORK
F3
OOF ALRM PDV BPV
G.703
495-14750
Cnfig
F3
OOF ALRM PDV BPV
G.703
495-14752
3350-A2-GB20-10