EXFO FTB-7000 OTDR Series for FTB-500 - Manual (Page 292)

Troubleshooting
278 OTDR
Error Messages
Communication test
with the module has
failed.
The module is not able to
perform the commands
properly.
Contact EXFO.
Unable to read
current version of the
calibration EEPROM.
The software version installed
on your FTB-500 is too old for
the module currently being
used.
Update ToolBox software
version (refer to the FTB-400
Universal Test System user
guide).Update the OTDR
software version (refer to the
Update Manager online help).
Module memory
error.
Impossible to access the
memory where data points are
stored.
Contact EXFO.
Unable to adjust the
amplification chain’s
offset.
Impossible to set an internal
component (ADC) to the
appropriate position when the
photodetector is not connected.
The module is probably
defective.
Contact EXFO.
Unable to adjust
offset with APD
connected.
Impossible to set an internal
component (ADC) to the
appropriate position when the
photodetector is connected.
Light is suddenly detected in the
module even though no sign of a
live fiber was detected at the
beginning of the acquisition.
³
Ensure that no live fiber is
connected to the OTDR
port.
³
Stop any acquisition that
could be underway,
disconnect the fiber from
the OTDR port and close
the connector’s cap to
ensure no light will reach
the port. Start a new
acquisition.
If the problem persists, contact
EXFO.
Error Message Possible Cause Solution