The RY-AC/A relay is used to activate an external doorbell, buzzer, or signalling device when a call is received. It can be used for call extension on the LEF, TD-H, TD-Z & IE-8MD systems.
Content, including images, displayed on this website is protected by copyright laws. Downloading, republication, retransmission or reproduction of content on this website is strictly prohibited. Terms of Use
| Privacy Policy