902 MHz Wireless Relays Application Manual B1867
Thermostat
Thermostat
Power
Dry Contact Output (Call)
Dry Contact Input
RIBWxxxB-EN3
RIBWxxxB-EN3
or RIBWxxC-EN3
Relay Output
Device Power
Hot Neutral or Other Phase
Heater, A/C,
or Fan
Device Power
Unidirectional Control with a Thermostat
In this application the thermostat dry-contact output controls the transmitter and a RIBWxxxB-EN3 or RIBWxxC-EN3 is the receiver.
Bidirectional Control with a BAS System
In this application the BAS system dry-contact output controls the transmitter on a RIBWxxxB-EN3. A second RIBWxxxB-EN3 receives the signal and activates it relay. A current
switch detects current flow through the load and closes the dry-contact input on the second RIBWxxxB-EN3. The first RIBWxxxB-EN3 receives the transmission and closes its
relay. This contact closure to the BAS system lets the controller know the load status.
Load
60Hz A/C Power
DO
DI
BAS Panel
BAS C
on
tr
oller
O
rg
Ye
l
Wht/Red and Wht/Blu
Wht/Blu
Wht/Red
Yel
Org
Blk
Wht or Red
RIBWxxxB-EN3
RIBWxxxB-EN3
RIBX Series
(not included)
LRN CLR
LRN CLR
LRN
CLR
LRN CLR
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