Avaya Definity SI Maintenance Manual page 1225

CO-TRK (CO Trunk)
B. Incoming Call
1. CO Off-Hook (Seizure): CO applies ground on Tip, CO applies ringing
voltage
a. PBX Response: Detect ringing, ring destination
2. PBX Off-Hook (Answer Message): Close loop
a. CO Response: Trip ringing, provide loop current
3. PBX On-Hook first (Drop Message): Open the Tip-Ring Loop, no loop
current
a. CO Response: Open circuit on Tip
4. CO On-Hook first (Disconnect): Open circuit on Tip, no loop current
Hardware Error Log Entries and Test to Clear
Values
Table 10-163. CO Trunk Error Log Entries
Error Aux
Type Data
1
0 0 Any
1 (a) 57347 None
15 (b) any Port Audit Update
Test (#36)
18 0 busyout trunk
<grp>/<mbr>
130(c) None
257 (a) 50176 None
513 (a) 57364 None
769 (a) 57392 None
1025 (e) Any Demand Diagnostic
Test (#3)
1281 (e) Any Demand Diagnostic
Test (#3)
1537 Dial Tone Test (#0)
1793 Loop Around and
Conference Test
(#33)
555-233-123
Alarm
Associated Test Level
Any
WARNING
WARNING
MAJ/MIN/
WRN
MAJ/MIN/
WRN
MAJ/MIN/
WRN
MAJ/MIN/
WRN
MAJ/MIN/
WRN
MAJ/MIN/
WRN
On/
Off
Board Test to Clear Value
Any test port PCSSpp sh r 1
OFF release trunk <grp>/<mbr>
ON test trunk <grp>/<mbr>
ON
2
OFF
2
OFF test port PCSS sh r 2
2
ON test port PCSS sh r 3
2
OFF test port PCSS l r 2
2
ON test port PCSS l r 3
2
Continued on next page
Issue 4 May 2002 10-439