Avaya Definity SI, Руководство по обслуживанию, Страница: 1225 / 2968

CO-TRK (CO Trunk)
Issue 4 May 2002 10-439 555-233-123
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
Type
Aux
Data Associated Test
Alarm
Level
On/
Off
Board Test to Clear Value
0
1
0 Any Any Any test port PCSSpp sh r 1
1 (a) 57347 None
15 (b) any Port Audit Update
Test (#36)
18 0 busyout trunk
<grp>/<mbr> WARNING OFF release trunk <grp>/<mbr>
130(c) None WARNING ON test trunk <grp>/<mbr>
257 (a) 50176 None
513 (a) 57364 None MAJ/MIN/
WRN
2
ON
769 (a) 57392 None MAJ/MIN/
WRN
2
OFF
1025 (e) Any Demand Diagnostic
Test (#3) MAJ/MIN/
WRN
2
OFF test port PCSS sh r 2
1281 (e) Any Demand Diagnostic
Test (#3) MAJ/MIN/
WRN
2
ON test port PCSS sh r 3
1537 Dial Tone Test (#0) MAJ/MIN/
WRN
2
OFF test port PCSS l r 2
1793 Loop Around and
Conference Test
(#33) MAJ/MIN/
WRN
2
ON test port PCSS l r 3
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