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MRX-1 B
ASE
S
TATION
5. Observe the RF LED of the RFX-250. Cup your hand over the
RFX-250’s RF LED. If it is glowing or flickering you must relocate
the RFX-250 to a location where the LED does not flicker.
6. Observe the STATUS LED of the MRX-1. It is a little more sensi-
tive than the RFX-250. If you see any flickering of this LED, move
the RFX-250 to a new location. If your installation location sim-
ply doesn’t offer you any choice and you are detecting interfer-
ence everywhere you place the RFX-250, you have three last
resort options:
a. Remove the RFX-250’s antenna. This will reduce the
range enormously, but may still be enough for this client.
b. Extend a wire to another room. Try this over the floor
first, before attempting to conceal the wire.
c. Admit defeat and install a “pointing again” IR repeater
system. If no buttons are pressed on any remote control,
no valid RF transmissions are being received.
7. Once you have found a location that is absolutely clean with all
components on, test to see if the range is adequate and that
macro reliability is perfect. Start with the antenna angle set to 45
degrees and positioned so that the long side of the antenna is fac-
ing the customer’s favorite seating position. When testing, set
both the remote and the MRX-1 to the same VALID RF ID#. Keep
in mind that zero (0) is not a valid RFID#. Watch the STATUS
LED on MRX-1 - it should light every time you press a button on
the remote. This will tell you that the signal was received and
understood. You can ignore the RF LED on the RFX-250 (it only
indicates that a signal was received, not that it was understood).
8. If the range is inadequate, you may extend the wire to any area
that is not getting good results and place an additional RFX-250
in that area. Up to three RFX-250s can be connected to one
MRX-1.
9. Should you need more than six IR Outputs, connect as many as
three different MRX-1s to one RFX-250 in a daisy chain using the
supplied cable. To preserve addressability, set each MRX-1 to a
different RF ID number. Remember “0” (zero) is not a valid RF
ID.
