User Guide
DEFINITY Enterprise Communications Server Release 5
Maintenance and Test for R5vs/si 
555-230-123
Issue 1
April 1997
Maintenance Object Repair Procedures 
Page 10-972M/T-DIG (Maintenance/Test Digital Port) [G3iV1-1.286, G3iV2-386] 
10
Clear Error Counters (#270)
This test is not an actual test in the strict sense of the word. Many circuit packs 
have counters in the Angel firmware. These counters are used so that Control 
Channel Message Set (CCMS) messages are not continuously sent uplink. Using 
this method, the message is sent once, when the counter reaches some preset 
threshold, and then not sent again until the counter is cleared.
The ports on the Maintenance/Test circuit pack continually run self-tests, 
whenever the port is idle. The Angel uses a counter so that the Background 
Maintenance Failure message is only sent uplink once (this keeps a failed 
7 FAIL Conference test failed on the primary information 
channel. In most cases, the user may not notice a 
disruption in service.
1. Run the circuit pack tests to check the Tone 
Generator circuit pack and the Tone Detector circuit 
pack via the test board PCSS command.
2. Resolve any problems that are detected on the Tone 
Generator circuit pack or Tone Detector circuit pack.
3. If the Tone Generator and Tone Detector circuit 
packs are functioning properly, and the test still fails, 
replace the Maintenance/Test circuit pack.
14 FAIL The primary information channel is not transmitting 
properly. User impact may range from nothing to not 
being able to use this port.
1. Run the circuit pack tests to check the Tone 
Generator circuit pack and the Tone Detector circuit 
pack using test board PCSS.
2. Resolve any problems that are detected on the Tone 
Generator circuit pack or Tone Detector circuit pack.
3. If the Tone Generator and Tone Detector circuit 
packs are functioning properly, and the test still fails, 
replace the Maintenance/Test Circuit Pack.
PASS The Maintenance/Test Digital Port digital trunk testing 
capability is operating correctly.
Table 10-279. TEST #13 Digital Port Loop Around Test — Continued
Error 
Code
Test 
Result Description/ Recommendation
Continued on next page










