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DEFINITY Enterprise Communications Server  Release 6
Maintenance for R6vs/si  
555-230-127   
Issue 1
August 1997
Maintenance Object Repair Procedures 
Page 10-312
CO-TRK (CO Trunk) 
10
CO Demand Diagnostic Test (#3)
For ground start trunks only, port circuit pack relays are operated and checks are 
made to see if the port can detect and apply ground on the Tip lead. This test 
also verifies that there is no external ground on the Ring lead. In the absence of 
other failures, the circuit pack should be replaced only if this test fails with the CO 
line disconnected.
For the TN2147 World Class Central Office circuit pack, this test also checks the 
on-board programmable transmission circuitry that allows the circuit pack to 
support the transmission characteristics of several countries.
1009
PASS
Detected tone was not pure dial tone. [G1, G3iV1.1-286] No action 
required.
PASS
Trunk was seized, and dial tone was detected. User-reported troubles on 
this port should be investigated by using other port tests and by examining 
trunk or external wiring.
0
NO 
BOARD
The test could not relate the internal ID to the port (no board).
1. Check to ensure that the board translations are correct. Translate the 
board, if necessary.
2. Issue the 
busyout board
 command.
3. Issue the 
reset board
 command.
4. Issue the 
release busy board
 command.
5. Issue the 
test board
 command. This should re-establish the linkage 
between the internal ID and the port.
Table 10-102.
TEST #3 CO Demand Diagnostic Test 
Error 
Code
Test 
Result
Description/ Recommendation
ABORT
Could not allocate system resources to run this test.
1. Retry the command at one-minute intervals a maximum of five times.
2. If the test continues to abort, escalate the problem.
Continued on next page
Table 10-101.
TEST #0 Dial Tone Test  — 
Continued
Error 
Code
Test 
Result
Description/ Recommendation
Continued on next page