Avaya 03-300430 User Manual

This test is destructive.
The SNI runs a destructive loop around of the on- and off-board looparounds. This test returns 
the result of the off-board loop around, while Test 757 returns the result of the on-board loop 
around. For SNI-to-SNI fiber links, this test is run on both SNI circuit pack endpoints of the fiber 
link.

FAIL

EI circuit pack can’t frame up to incoming signal. Several fail codes may be 
returned depending on which endpoint can’t frame up. Error codes 2326, 
2327, and 2328 denote Endpoint 1, Endpoint 2, and both endpoints, 
respectively.

1. Clear any SYNC and TDM-CLK errors listed in the error log.

2. Run test board location for each EI board on this fiber link and 

follow the appropriate repair sequence for any failing tests.

3. If the EI circuit pack fails Test #238 and is in the PN, and the red LEDs 

are ON for a large number of circuit packs, then reseat any Tone-Clock 
circuit packs in the PN. See the “How to replace Tone-Clock circuit 
packs” section of 

Maintenance documentation.

4. Enter display errors and follow the associated repair procedures 

for any SNC-BD (if applicable to this fiber link configuration) or 
TDM-BUS errors.

5. Perform the 

 in Maintenance Procedures (03-300192)”, described in 

Chapter 5.

6. If the test continues to abort, follow normal escalation procedures.

PASS

The EI circuit pack(s) have detected the valid framing signal on the fiber.

1. Refer to errors from other EI circuit packs, SNI (SNI) tests, or DS1 

Converter tests (if present) if the link is still not functioning.

 2 of 2