ZyXEL Communications ACCESSING INTERNET & INTRANET omni series - Manual (Page 112)

100 Diagnostics
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
Seq. LED
LNK LED
B1 LED
B2 LED
AA Test Description
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.
O NOTE
: 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.