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Adding two-way intercom capability to your Liftmaster gate operator system is a simple process. You start by selecting the features you want for your intercom. All of our intercoms have the ability to connect to the Liftmaster via two wires. In the diagram below it shows running two wires from the exit loop contacts on the Liftmaster control board to the Relay connections on one of our intercoms.

When you press a button on the inside intercom, or on an app that connects to the intercom, then this closes the contacts of the relay to complete a circuit which opens the gate.

If you are currently using some sort of wireless opener with your Liftmaster, you will continue to use that system to open the gate when you drive up. This will not affect that operation.


Liftmaster gate intercom wiring


Benefits of IntercomsOnline