User Guide
3
The REX unit
The REX unit connects to a USB device using a conventional USB
cable. The REX unit allows you to connect up to four USB devices. It
is powered by an external AC adapter.
Front View
Rear View
1
2
3
4
3
4
3
4
3
4
6
5
1
Power LED
2
Power connector
3
Device LEDs
4
Device Ports (USB Type A)
5
Link LED
6
Link Port (MT-RJ)
Network Cabling
The LEX unit and the REX unit are interconnected by up to 500
meters of fiber-optic cabling. Two strands of 62.5/125 multimode or
50/125 multimode fiber-optic cabling are required. The cabling
subsystem must provide a duplex connection with crossover, and
must be terminated with MT-RJ connectors at both ends.
Fiber-optic cable
USB
USB
LEX
REX
cable
cable(s)
USB
device(s)
computer
AC power adapters
