EXFO FTB-1v2 Guide De L'utilisateur page 271

4. From the LINS offset value list, select a value that will be used when
assigning the LINS that will help you identify the instruments more
easily if you are working with several units housing modules.
If you prefer to access the instruments using the LINS as is, leave the
offset value to 0.
Note: The LINS offset value that you select applies only to the unit on which you
configure the parameters.
Note: The LINS offset value that you select will be used when assigning the LINS
of the next instruments that you will insert in the unit. The LINS of the
instruments that were already in the system when you selected the LINS
offset value will not be updated.
FTB-1v2 and FTB-1v2 Pro
Preparing for Automation
Configuring Your Instruments
259