Paradyne 3160-A4, 3161, and 3165-A4 Power-On Self- Test

2. Installation
2-10 March 2001 3160-A2-GB24-10
Power-On Self- Test
After you connect the DSU/CSU to a power source, the unit performs the power-on
self-test to ensure that it is in good working order. The DSU/CSU performs this test
on itself upon power-on 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 c ode
checksum test, and basic verification tests of the internal components. The front
panel LCD displays the progress and pass/fail status of these power-on tests.
Procedure
The power-on self-test consists of the following steps:
1. Once the DSU/CSU is plugged in, the In Progress screen appears and the Fail
LED blinks ON and Off continuously.
2. All the LEDs then start to flash simultaneously in the patter n 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.
F1 F2 F3
Self-Test:
In Progress
F1 F2 F3
Self-Test:
Passed