Advanced Setup – Pairing a LEX unit and a REX unit
The following instructions are for advanced users only.
These instructions should only be executed if specifically required and if you are comfortable with the operations. Under normal operating conditions, you should never need to pair a LEX unit and a REX unit.
Paired units are defined as a LEX unit and a REX unit that are aware of each other’s unique address and communicate exclusively.
Pairing is accomplished by infrared (IR) communication through the IR windows on the LEX unit and the REX unit; pairing information is not sent over the 802.11g radios. The IR communication distance is limited to an approximate distance of 20 cm.
NOTE: The WiRanger’s LEX unit and REX unit are shipped paired from the factory.
NOTE: If the Pair/CH button is pressed whether accidentally or purposefully and the LEX unit and the REX unit are not able to communicate via the IR interface no effect in operation will be detected and pairing will not occur.
1.Place the LEX unit and the REX unit 5 cm apart from each other with their IR windows pointed directly at each other. The IR windows must have a clear and unobstructed view of each other.
2.Power on both the LEX unit and the REX unit and wait for approximately 20 seconds before proceeding to step 3. If the units are already on, proceed to step 3.
3.Press the Pair/CH button on either unit for approximately 1 second. Upon release of the button the Host, Link and Activity LED’s on both the LEX unit and the REX unit should begin to blink rapidly.
NOTE: DO NOT remove power while LED’s are blinking.
NOTE: If step 3 is attempted too early after power up, the pairing procedure will not occur. Wait a few seconds longer and retry step 3.
NOTE: If the rapid blinking of the LED’s does not occur, confirm that the IR windows on the LEX unit and the REX unit are unobstructed, pointed at each other, and are 5 cm apart.
Retry pressing the PAIR button. If the LED’s still do not blink upon release of the button unplug both units for at least 10 seconds and return to step 1.
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