Exfo FTB-3930 MultiTest Manual de usuario descargar pdf (Pagina 84)

100

101

Troubleshooting

78 FTB-3930

Solving Common Problems

Unable to establish FASTEST

communication.

 Remote unit’s FASTEST

port is in use.

 Remote unit is not

compatible.

 Selected port on master

unit differs from actual

port to which fiber is

connected.

 Compatibility set to

FOT-930 / FTB-3930

but remote unit is not

an FOT-930 or

FTB-3930.

 Wait until FASTEST

completes, turn source

and ORL meter off or exit

Probe mode (FOT-930).

 Make sure remote unit

isan FOT-930, FTB-3930,

FOT-920 or FTB-3920.

 Set the port (SM or MM)

correctlyin Setup (F

ASTEST

tab) on master unit.

 Set the compatibility to

FOT-920 / FTB-3920 in

Setup (F

ASTEST tab) on

master unit.

During F

ASTEST, you get a

message saying that

loopback reference was

not performed.

Loopback reference was

selected, but not performed

(or reference is outdated).

Perform a loopback reference

before F

ASTEST measurement.

ORL values are inaccurate

for short fibers at 1310 nm

during a F

ASTEST.

— Measure ORL manually.

Unable to communicate

with an FOT-920 using the

talk set.

Talk sets of the FOT-920 and

FOT-930/FTB-3930 are not

compatible.

Use text messaging instead.

Unable to establish

connection with

compatible talk set.

Probe mode is activated on

remote unit(FOT-930 only).

Deactivate Probe mode.

Problem Possible Cause Solution

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Exfo FTB-3930 MultiTest Manual de usuario Pagina 84

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