Connecting a USB Device
1. Install any software required to operate the USB device(s). Refer to the documentation for the USB
device(s), as required.
2. Connect the USB device to the device port on the REX unit.
3. Check that the device is detected and installed properly in the operating system.
Compatibility
The USB Ranger® 2201 complies with USB 1.1 and USB 2.0 specifications governing the design of USB
devices. However, Icron Technologies Corporation does not guarantee that all USB devices are compatible
with the USB Ranger® 2201, as there are a number of different configurations that may impact the operation
of USB devices over extended distances.
Troubleshooting
The following table provides troubleshooting tips. The topics are arranged in the order in which they should
be executed in most situations. If you are unable to resolve the problem after following these instructions,
please contact technical support for further assistance.
PROBLEM
CAUSE
SOLUTION
All LEDs on LEX
unit are off.
• The LEX unit is not receiving
enough power from the USB
port or the (optional) LEX AC
adapter.
1. Ensure that the USB connection between the LEX
and host computer is properly installed.
2. Move the USB connector to another USB port on
the host computer.
All LEDs on REX
unit are off.
• The REX unit is not receiving
power from the AC adapter.
1. Ensure that the AC power adapter is properly
connected to the REX unit.
2. Check that the AC adapter is connected to a live
source of electrical power. Check that the REX
power LED is illuminated.
Link LEDs on
LEX unit and
REX unit are off.
• There is no connection between
the LEX unit and REX unit.
1. Ensure Cat 5 cable is connected between the LEX
unit and REX unit. Cat 5 or better cable, UTP with
a straight through connector and no crossovers,
and 8 connector RJ45 connectors are used at both
ends.
2. If the Cat 5 cable is defective, connect a short Cat
5 patch cord between the LEX unit and REX unit to
determine if the original Cat 5 cable is defective.
8
