PRELIMINARY
Maintenance and Spare Parts
Fault Tracing Guidelines
Table 15
LED status
Possible cause
Suggested action
Configuration 1 or 2 pair:
•
DC power failure.
•
Check the small fuse located
int the installation box close to
the PCM B terminal.
P005397A
2p
1p
-Pair 2
Upstream
-Pair 1
Downstream
-DC Power On
Refer to Section 5.3.5 on page
133.
Configuration 1 or 2 pair:
P005398A
2p
1p
-Pair 2
Upstream
-Pair 1
Downstream
-DC Power On
•
Link break.
•
Check transmission Line(s).
Configuration 2 pair:
P005399A
2p
1p
-Pair 2
Upstream
-Pair 1
Downstream
-DC Power On
•
Pair 1: Downstream
link missing
•
Check transmission Line
PAIR 1 Downstream link
Configuration 2 pair:
•
Pair 2: Upstream link
missing
•
Check transmission Line
PAIR 2 Upstream link
2p
1p
-Pair 2
Upstream
-Pair 1
Downstream
-DC Power On
P005400A
LZN 302 14
P3A-1
1999-11-10
93 (158)
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