B&B Electronics 00-00347--50 - Manual - Manual (Page 11)

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
power from the USB port. 1. Ensure that the host computer is connected to
the LEX.
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 5e cable is connected between the
LEX unit and REX unit. Cat 5e or better cable, UTP
with a straight through connector and no
crossovers, and 8 conductor RJ45 connectors are
used at both ends.
2. Connect a short Cat 5e patch cord between the
LEX unit and REX unit to determine if the original
Cat 5e cable is defective.
Link LEDs are
blinking. • There is no connection between
the LEX unit and REX unit. 1. Ensure both the LEX and REX units are connected
directly together directly.
Link LED on LEX
unit is on, Host
LED on LEX unit
is off. • The host computer is not
powered on.
• The LEX unit is not
connected to the computer .
• The host computer is not
recognizing the LEX.
• The computer does not
support USB hubs.
• The Ranger 2304 is
malfunctioning.
1. Disconnect all USB devices from the REX unit.
2. Disconnect the LEX unit from the computer.
3. Disconnect the REX unit from the AC power
adapter.
4. Reconnect the LEX unit to the computer.
5. Reconnect the REX unit to the AC power adapter.
6. In the Universal Serial Bus controllers section of
Device Manager, check that the Ranger 2304 is
recognized as a “Generic USB Hub”.
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