EXFO FTB-7000 OTDR Series for FTB-500 - Manual (Page 291)

Troubleshooting
OTDR 277
Error Messages
ToolBox Fatal Error:
OTDR Card Module
Unknown Model
Error
This error arises if the software
version is incompatible with the
hardware, or less frequently, if
the module memory has been
corrupted.
Take note of the module serial
number and the software
version.
Contact EXFO to verify that you
have the most recent software
version and to be sure that it is
compatible with the module.
ToolBox Fatal Error:
OTDR Card Module
APD Error
The photodetector is not
working. The module should not
be used.
Return the module to EXFO.
ToolBox Fatal Error:
OTDR Card Module
Offset Error
The voltage in the module is out
of specifications. The module
should not be used.
Return the module to EXFO.
ToolBox Fatal Error:
OTDR Card Module
Checksum Error
The memory is corrupted. The
module should not be used.
Return the module to EXFO.
ToolBox Fatal Error:
OTDR Card Module
Failed Insertion Loss
Reference Test. ORL
calculation can no
longer be performed
An optical component has been
damaged.
The equipment may still be
used, but the performance of
the module may not be optimal,
particularly with pulses shorter
than 1 μs.
ORL measurements will not be
accurate.
Return the module to EXFO.
Calibration EEPROM
data is corrupted
A problem was detected with
the calibration EEPROM
checksum.
Contact EXFO.
Timeout occurred
while attempting to
read calibration
EEPROM
Impossible to read the contents
of the calibration EEPROM
because the module is not
responding.
Contact EXFO.
Error Message Possible Cause Solution