![Chamberlain 8003EV Manual Download Page 21](http://html1.mh-extra.com/html/chamberlain/8003ev/8003ev_manual_2587762021.webp)
CH1
CH2
CH3
LEDs
SINGLE CHANNEL
Receiver
Single Operator(s)
THREE CHANNEL
Receiver
Operator 1
Operator 2
Operator 3
OPEN, CLOSE, STOP
Receiver
Single Operator
3-Button Control Device
Refer to your door operator
or gate operator wiring
diagrams for instructions on
connecting two or more
3-Button control devices.
CH1 Learn Button
CH2 Learn Button
CH3 Learn Button