EXFO iOLM - Manual (Page 42)

Setting User Preferences
36 iOLM
Naming iOLM Files Automatically
After an acquisition is successfully saved, the file name is the combination
of job ID, identifiers, and the wavelength. These values are separated in the
file name with an “_” (underscore).
For example, the file name after the first acquisition is
<Job ID>_A2_B1_K3_<wavelength>.iolm
Note: If the ONT, OLT, and location values are not specified, then the file name
will only contain the Job ID value, numeric identifiers value, and the
wavelength.
After a new acquisition is successfully saved, the location value will
increment by the set step value, that is, for the second acquisition file
name, the location value will be 6.
So, the file name after the second acquisition can be
<Job Id>_A2_B1_K6_<wavelength>.iolm
When the location value reaches the stop value, it resets to start value and
ONT value starts incrementing by step value.
The auto increment of values proceeds from right to left.
Note: The auto increment continues until the first number (that is, OLT value)
reaches the stop value.