Avaya S8700 Maintenance Manual page 304

Maintenance Object Repair Procedure
System Technician-Demanded Tests:
Descriptions and Error Codes
Always investigate tests in the order presented in the table below. For example,
by clearing error codes associated with the Digital Line Electronic Power Feed
test (#11), you may also clear errors generated from other tests in the testing
sequence.
Order of Investigation
Digital Line Electronic Power Feed test (#11)
DIG-LINE Station Lamp Updates test (#16)
Station (Digital) Audits test (#17)
1. D = Destructive; ND = Nondestructive
Digital Line Electronic Power Feed/Positive
Temperature Coefficient/PPF Test (#11)
This is an Electronic Power Feed (EPF) restoration test. In this test, the processor
requests that the EPF be turned on for a given port, and an attempt is made to
turn on the power supply to the station. If no current is drawn, the station is
probably not connected. If an overcurrent condition is sensed, there may be a
short in the loop. A message is returned reporting that either the EPF was
successfully turned on, or that an overcurrent condition was sensed. This test is
repeated again 5 seconds later.
8-1000 Issue 1 May 2002
Short Test Long Test
Sequence Sequence
X
X X
X X
1
D/ND
ND
ND
ND
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