EXFO FTB-2 - Manual (Page 16)

Introducing the FTB-2 and FTB-2 Pro
6 FTB-2 and FTB-2 Pro
LED Indicators Description
LED Indicators Description
There are two LED indicators located on the front panel of your unit,
providing you with information about the power and battery statuses.
LED Status Meaning
Green Unit is on.
Green, blinking Unit is in Sleep mode.
Off
Unit is off or in Hibernation mode.
Red There is a major hardware problem
with the unit. Contact EXFO.
Back
Battery compartment
Support