EXFO FTB-500 - Function Buttons Description

Introducing the FTB-500
FTB-500 3
Main Features
USB ports (2)
Back supports
Right side
(four-slot model)
Module slots
Serial port (male DB-9)
Audio in port
(for any commercially available
microphone and having a 3.5 mm
connector)
Audio out port
(for any commercially available speaker
or headset, and having a 3.5 mm
connector)
Power meter (optional)
VFL port (optional);
laser radiation emitted at this port
when VFL is active