Avaya 03-300430 User Manual

Notes:

a. Error Type 0: Run the short test sequence first.  If every test passes, run the long test 

sequence.  Refer to each appropriate test’s description, and follow its recommended 
procedures.

b. Error Type 1: problem with the primary DS1 reference.  It is cleared when the primary 

reference is restored.  The following steps should give an indication of the source of the 
problem:

1. Check if the primary DS1 interface circuit pack is inserted in the carrier with list 

configuration board location.

2. Verify that the administered primary reference matches the DS1 reference from the 

network synchronization plan.

3. Test the primary DS1 interface circuit pack with test board location long.  Check 

the Error Log for DS1-BD or UDS1-BD errors and see 

on page 2374 to resolve 

any errors associated with the primary DS1 (DS1 or UDS1) interface circuit pack.  If the 
only errors against DS1-BD or UDS1-BD are slip errors, then follow the procedures 
described in the troubleshooting section above.  If no errors are listed in the Error Log for 
the primary DS1 interface circuit pack, continue with the following steps.

4. Test the active Tone-Clock circuit in the master PN with test tone-clock location long.  

Check the Error Log for TDM-CLK errors and verify that TDM Bus Clock Test #148 (TDM 
Bus Clock Circuit Status Inquiry test) passes successfully.  If Test #148 fails with an Error 
Code 2 through 32, see 

on page 2252 to resolve the 

problem.

c. Error Type 257: problem with the secondary DS1 reference.  It is cleared when the 

secondary reference is restored.  Refer to note (a) to resolve this error substituting 
secondary for primary in the preceding resolution steps.

d. Error Type 513: the ATM switch clock is inferred to be providing the timing source for the 

system.  The primary and secondary (if administered) are not providing a valid timing signal.  
Investigate errors 1 and 257 to resolve this error.

e. Error Type 1537: over half of the DS1s that are administered with slip detection enabled 

through the Slip Detection field set to y are experiencing slips. It may take up to 1 hour for 

these alarms to clear via the “leaky bucket” strategy.

f. Error Type 1793: inferred excessive switching of system synchronization references has 

occurred.  When this error occurs, it is inferred that the ATM switch clock has become the 
synchronization reference for the system. It may take up to 1 hour for these alarms to clear 
via the “leaky bucket” strategy.

1. Check for timing loops and resolve any loops that exist.