EXFO FTB-500 - Manual (Page 12)

Introducing the FTB-500
4 FTB-500
Main Features
Back support
Right side
(eight-slot model)
Module slots
Bottom support
Front module lock
USB ports (2)
Serial port (male DB-9)
Fiber inspection probe connector
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