Aiphone RY-AC-A Relay
The RY-AC/A Relay used to activate an external doorbell, buzzer, or signaling device when a call is received.
Aiphone Corporation RY-AC/A External Signaling Relay for Select Aiphone Audio Intercoms. Allows an external device to be triggered when intercom is called. External device will be activated momentarily as long as the call button on the door station is activated. DAK-2S required when used with C-123L/A / C-123LW and LEM / LEM-1DL.
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