EXFO FTB-7000 OTDR Series for FTB-500 - Manual (Page 51)

Setting Up Your OTDR
OTDR 37
Defining Cables
3. Press the button next to the Color ID box.
4. From the Color Code In Use list, select a color code.
OR
Select None if you prefer not to use color information.
For information on how to create your own color codes, see the
corresponding procedure on page 43.
5. Under Color Identification, select your preference between the Full
Name of the color, or its Abbreviation.
6. Press OK to confirm.
The color name will appear in subsequent trace names, after the fiber
number, and in sequential order, according to the color code you have
chosen.