Paradyne 317x E1 Power-Up Self-Test, Self-Test In Progress, Self-Test Passed, Failed nnnnnnnn

Installation

Power-Up Self-Test

After you connect the E1 DSU/CSU to a power source, the unit performs the power-up self-test to ensure that it is in good working order. The E1 DSU/CSU 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 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

If the self-test fails, the Failed screen appears for five seconds. The Fail LED lights, and an eight-digit failure code (nnnnnnnn) is displayed for use by service personnel to determine the cause of the self-test failure. The E1 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 test (see the Self-Test Health section in Chapter 4, Maintenance).

Self-Test:

Failed nnnnnnnn

F1 F2 F3

4. The top-level menu screen appears.

DSU E1 CEPT

Stat Test Cnfig

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3170-A2-GB20-20 December 1996 2-9