Wiring a gate operator (normally open), Wiring an auto-call sensor, Installation – Chamberlain TAC1 User Manual
Page 7: Relay 1 relay 2

7
AUTO CALL
12
Loop Sensor
NO
(Normally Open)
Loop
Detector
WIRING A GATE OPERATOR (NORMALLY OPEN)
Primary Gate
Operator
(Strike Open Input)
RELAY 1
RELAY 2
NO
(Normally Open)
COM
(Common)
The gate operator can be connected to Relay 1 or Relay 2. See the
Programming section for information about configuring Relays 1
and 2.
The Auto-Call feature will enable the unit to contact the resident
when a driveway sensor (or any device that provides a contact
closure) is activated.
WIRING AN AUTO-CALL SENSOR
INSTALLATION
>> WIRING A GATE OPERATOR (NORMALLY OPEN) AND
WIRING AN AUTO-CALL SENSOR
AU
TOCAL
L
EXI
T
2
COM
EXI
T
1
HOUSE
TELCO
Notes about wire connectors
(terminal blocks):
• Wire connectors can be
removed to simplify wiring.
• DO NOT overload wire
connectors. Use ONLY one
wire per hole.