NEC ELECTRA ELITE IPK II - Page 629

Electra Elite IPK II Document Revision 3
System Hardware Manual 14 - 17
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Ringing Problem on SLT
E2
Replace SLT.
Problem
solved?
Yes
Yes
Yes
No
No
No
SLT defective.
Check to see if ringing
problem is intermittent.
Intermittent
Problem?
Check to see if SLT
is call forwarded.
Call
Forward?
Cancel call
Forwarding.
Check SLI(4)/(8)-U10 ETU for
ring voltage output with AC
meter.
Pass
Fail
Busy
Idle
Check BLF indication
for station.
Replace SLI(4)/(8)-U10 ETU.
RSG Test?
BLF
Indication?
Busy
Idle
Terminate SLT on MDF.
Check/replace
station cable.
BLF
Indication?
1. Reset/replace SLI(4)/(8)-U10 ETU, and test.
2. Perform Second Initialization, and test; then
perform First Initialization and test.
3. Change CPUII( )-U( ) ETU, and test
using default program.
Check MDF
connection.