15 Diagnostics

The omni can perform its own diagnostic tests, providing you with valuable information. This chapter provides diagnostic tables for interpreting test results.

The following table is a summary of the omni's self-tests for external models:

Test

LED

LED

LED

LED

Test Description

Seq.

LNK

B1

B2

AA

 

1

on*

off

off

off

Memory test.

2

off

on*

off

off

ISDN chip interface test.

3

off

off

on*

off

ISDN chip functional test.

4

off

off

off

on*

HDLC functional test.

* The LED lights up while test is in progress and blinks if a test fails.

The following table is a summary of the omni's self-tests for internal models:

Blinks

Test Description

1

Memory test failed.

2

ISDN chip interface test failed.

3

ISDN chip functional test failed.

4

HDLC functional test failed.

ONOTE: When a self test fails the LED will blink 1-4 times in succession, followed by a 1.5 second pause. After completing a successful self test the LED will remain off.

Diagnostics

The omni ISDN TA provides several diagnostic capabilities:

Power-on Self-test.

Local Digital Loopback Test.

100 Diagnostics

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ZyXEL Communications omni series user manual Diagnostics, Test Description, Seq