EXFO FOT-930 Multifunction Loss Tester - Manual (Page 92)

Troubleshooting
84 FOT-930
Solving Common Problems
Unable to send a text
message.

Selected port differs
from actual port to
which fiber is
connected.

Receiving unit’s port is
in use.

Remote unit is not
compatible.

On the sending unit, set
the correct port (SM or
MM) in F
AS
T
ES
T Setup.

Wait until F
AS
T
ES
T
completes, turn source
and ORL meter off or exit
Probe mode.

Make sure remote unit is
an FOT-930, FTB-3930,
FOT-920 or FTB-3920.
Problem Possible Cause Solution