Paradyne 336x E1 manual Power-Up Self-Test, E1 Hdsl NTU

Installation

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 F2 F3

OK FAIL TEST SIG1 SIG2 OOF ALRM SIG OOF ALRM PDV BPV

NETWORK DTR TXD RXD CTS RTS

495-14747

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

OK FAIL TEST SIG1 SIG2 OOF ALRM SIG OOF ALRM PDV BPV

NETWORK DTR TXD RXD CTS RTS

495-14748

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 service 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 F3

OK FAIL TEST SIG1 SIG2 OOF ALRM SIG OOF ALRM PDV BPV

NETWORK DTR TXD RXD CTS RTS

495-14747

4. The top-level menu screen appears.

E1 HDSL NTU

Stat Test Cnfig

F1 F2 F3

OK FAIL TEST SIG1 SIG2 OOF ALRM SIG OOF ALRM PDV BPV

NETWORK DTR TXD RXD CTS RTS

495-14749

3360-A2-GB20-20 December 1996 2-9