Power-On Self-Test

2. Installation

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 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-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.

Self-Test:

In Progress

F1 F2 F3

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 F2 F3

2-10

March 2001

3160-A2-GB24-10

3160-A4, 3161, and 3165-A4 specifications

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

Models: 3160-A4 3161 and 3165-A4