Troubleshooting
322 MAX-700
Solving Common Problems
The application displays
a message indicating
that a “live fiber error”
occurred and the fiber
was not connected to
the SM Live port.
Light has been
detected on the OTDR
port during the
acquisition or while
you were monitoring a
fiber in real-time
mode.
Disconnect the fiber from the OTDR
port. Press OK to close the message.
Start another acquisition without any
fiber connected to the OTDR. The
message about live fiber error should
not appear and the OTDR trace
should look “normal”.
If you still see the message about live
fiber error even if no fiber is
connected to the OTDR, contact
EXFO.
Never connect a live fiber to the
OTDR port without a proper setup.
Any incoming optical power ranging
from –65 dBm to –40 dBm will affect
the OTDR acquisition. The way the
acquisition will be affected depends
on the selected pulse width.
Any incoming signal greater than
– 20 dBm could damage your
MAX-700 permanently. For live-fiber
testing, refer to the SM Live port
specifications for the characteristics
of the built-in filter.
Problem Cause Solution
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