User's Manual

4 • RF Sensor System I&O Manual 026-1702 Rev 0 10-30-00
The sensing element and transmitting
antenna for the RF Product Sensor are inside the
enclosure and may transmit to receivers up to
150 feet away. The sensor also has an internal
clean switch, which is activated by pressing a
button on the enclosure.
1.1.2. RF Receiver
The RF Receiver (P/N 837-3510) is an
antenna that mounts to the ceiling of the sales
area or on top of a refrigerated case. The RF
Receiver accepts transmissions from RF Ambi-
ent Temperature Sensors and RF Product Simu-
lators. It passes the sensor readings it receives to
the RF Gateway by way of an RS485 network
connection.
Up to six RF Receivers may be mounted
within a single building.
1.1.3. RF Gateway
The RF Gateway (P/N 810-3500) is an
RS485 peripheral board compatible with both
Einstein and REFLECS (RMCC, BEC, and
BCU) systems. The RF Gateway serves as an
interface between the RF Receivers, which send
messages from the sensors, and the area control-
lers, which use the sensor values for logging,
controlling, and alarming. Each Einstein or
REFLECS controller that will read values from
RF Sensors must be equipped with an RF Gate-
way.
Sensors and product simulators that will be
used by an Einstein must be “commissioned” in
the RF Gateway’s software. Once a sensor is
commissioned, the gateway then assigns the sen-
sor to a virtual "board and point" address. This
allows the area controller to tie application
inputs to RF Sensor values in the same way tra-
ditional 16AI board and point inputs are set up.
Figure 1-5 - RF Receiver
Figure 1-6 - RF Gateway Board