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Table 10-3. Troubleshooting related PWR(V) LED indication
No.
Content
Probable causes
Checking methods and measures
1
PWR(V) LED
is OFF.
Power supply for output not
present.
Check the power supply voltage for output being
supplied to the SI Unit.
Supply the voltage considering the voltage drop
on the wiring.
The communication/power cable is
broken.
Check the connection of the
communication/power cable.