Diagnostics - ZyXEL Communications ACCESSING INTERNET & INTRANET omni series User Manual

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
Seq. LNK
on*
1
off
2
off
3
off
4
* 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
1
2
3
4
: When a self test fails the LED will blink 1-4 times in succession,
O
NOTE
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
LED LED
B1 B2
off off
on* off
off on*
off off
Test Description
Memory test failed.
ISDN chip interface test failed.
ISDN chip functional test failed.
HDLC functional test failed.
LED Test Description
AA
off Memory test.
off ISDN chip interface test.
off ISDN chip functional test.
on* HDLC functional test.