Aiphone RY-AC/A

External Signaling Relay

RY-AC/A

Used to activate an external doorbell, buzzer, or signaling device when a call is received. It can be used for call extension on the LEF, TD-H, TD-Z and IE-8MD systems.

• Allows an external device to be triggered when the intercom is called
• External device will be activated momentarily as long as the call button on the door station is activated