User's Manual

M1XRFTW Installation Manual Page 3
OVERVIEW
The "TW" model of the ELK-M1XRF Wireless RF Receiver (part # ELKM1XRFTW) allows an ELK-M1 and ELK-M1EZ8
Controls to accept Elk's complete line of Two-Way Wireless Sensors. Refer to the list of available transmitters in this manual.
Including this new Elk Two-Way Receiver, Elk now produces three (3) different models of wireless receivers for the M1 Control.
One is for Elk sensors (M1XRFTW), one is for GE sensors (M1XRF2G), and one is for Honeywell sensors (M1XRF2H).
Regardless of the receiver model, they each attach directly to the M1 via the four (4) wire Keypad Data Bus. And they enroll
and integrate in much the same way as a hardwired zone expander, with the exception that a single M1XRF can handle up
to 144 wireless Sensors/Zones. The benefits of operating from the data bus are: 1) Receiver(s) do not have to be installed
adjacent to the control, rather they can be installed virtually anywhere in a building up to the maximum distance of the data
bus. This provides optimum convenience and coverage. 2) Multiple receivers (up to 11 total) can be connected to a single
control, providing greater coverage as well as redundancy. Utilizing multiple receivers it is possible to cover hundreds if not
thousands of square feet with a receiver placed in strategic locations.
A strong point of the Elk Receivers is that all transmitter serial numbers and setup information is stored in the control panel
rather than in the receiver(s). There are two advantages of this: 1) Sensors need only be enrolled one time, yet they can
be received by any compatible format "redundant" receiver in the building. This is especially great for coverage of portable
Keychain (FOB) Remotes. 2) Should a receiver ever become damaged or need replacement it will not be necessary to re-
enroll the transmitters. Simply replace the receiver and perform a data bus enrollment of the receiver to the control panel.
IMPORTANT NOTE - THE BRAND OF TRANSMITTERS INSTALLED MUST BE MATCHED TO THE CORRECT RECEIVER.
Receiver brands can be mixed on a single M1 Control, allowing a mixture of transmitter brands. While this is
great for takeover situations, extreme care must be taken to assure that each transmitter is within range of it's
respective receiver model. In other words, the receiver/transmitters are physically and electronically different
and are only compatible within their own brands.