User manual
DEFINITY Enterprise Communications Server Release 6
Maintenance for R6vs/si 
555-230-127  
Issue 1
August 1997
Maintenance Object Repair Procedures 
Page 10-629EXP-INTF (Expansion Interface Circuit Pack) 
10
2500 ABORT  An internal operation failed; the test could not be completed.
1. Retry the command at 1-minute intervals a maximum of 5 times.
1 FAIL The test did not detect the test tone through the loop around connection.
NOTE:
If the circuit pack is a TN570, the packet portion of this test was not 
run since the circuit portion failed.
1. Test the Active Tone-Clock on the Port Network that contains the 
defective Expansion Interface circuit pack to verify that dial tone is 
being supplied.
2. If the Tone-Clock is healthy, issue the test board PCSS long 
command on the Expansion Interface circuit pack.
3. If this test continues to fail, replace the Expansion Interface circuit 
pack or transceiver. Then, reissue the test board PCSS long 
command on the new Expansion Interface circuit pack.
2 FAIL The test tone was transmitted and detected correctly, but the correct data 
packet was not detected by the TN778 Packet Control circuit pack. This 
error only applies to the TN570 Expansion Interface circuit pack.
1. Test the TN778 Packet Control circuit pack to verify that it is 
functioning properly. If any tests fail, investigate those tests and repair 
the Packet Control circuit pack.
2. If the Packet Control circuit pack checks out OK, issue the test board 
PCSS long command on the Expansion Interface circuit pack.
3. If Test #242 continues to fail, replace the Expansion Interface circuit 
pack. Then, issue the test board PCSS long command on the new 
Expansion Interface circuit pack.
4. If Test #242 continues to fail, replace the lightwave transceiver, reset 
the circuit pack and issue the test board PCSS long command on the 
Expansion Interface circuit pack.
Table 10-213. TEST #242 Expansion Interface Lightwave 
Transceiver Loop Around Test — Continued
Error 
Code
Test 
Result Description/Recommendation
Continued on next page










