Aiphone RY-ES External Signaling Relay

Extend an Aiphone intercom installation with an external signaling relay for applications that need notification outside the normal intercom station interface. The RY-ES provides the relay function used to connect a compatible intercom system to an auxiliary signaling workflow, such as an external annunciator, notification circuit, or building signal interface. It is intended for physical-security deployments where an intercom event must be communicated to personnel or equipment away from the master or door station. Compatibility spans the JA, JR, JK, KB, KC, AX, NEM, and DB Aiphone intercom series. That broad series coverage makes the relay appropriate when maintaining an installed Aiphone platform while adding external indication capability. Match the relay to the intercom series in use and to the electrical and connection requirements of the external device that will receive the signal. The RY-ES is specifically an external signaling component rather than an intercom station, door release device, or communication endpoint. Its role is to extend signaling from the supported system into a connected auxiliary circuit. This distinction matters in installations that require a separate audible, visual, or monitored indication path while retaining the existing Aiphone intercom equipment for visitor communication and access control operations.