Alarm circuit composed of T630/T631

Relevant key device information applied in this article: RD9481 YN9101 HL-169B 9013 CD4017 CD4069 MK5087 T630 CD4066 This circuit uses the microwave sensing module RD9481 as the probe, uses DTMF (dual tone multi-frequency) encoding and decoding, and is composed of the long-wave transceiver component T630/ T631 transmits alarm signals and addresses, can display alarm locations, and is suitable for multi-channel (16-channel) cluster monitoring and alarm systems. This circuit consists of an extension and a host. Except for the different address codes, the circuits of each alarm extension are the same. Alarm extension circuit: Alarm host circuit: