What is the use of the relay module in the fire fighting weak electricity system?
Relay, from the name will know. It is the module of locating and transmitting the related signals. Forward the incoming signal to the device that requires the signal. Return the signal of the equipment to the incoming party. Because there are so many terminals, it is impossible for each terminal to get a set of lines to central control, which is too expensive. Therefore, after the relay module is combined and then central control, the cost can be saved.
The technical parameters of the current relay module are as follows:(1) the quiescent current is less than 20mA.(2) load carrying capacity and compatibility: it can be equipped with 1~242 point bus equipment and compatible with all bus equipment.(3): bus isolation voltage input and output bus isolation voltage of more than 1500V.(4) the use of the environment: temperature: -10 to +50 DEG C relative humidity is less than 95%, no condensation.(5) dimensions: 85mm * 128mm * 56mm.
A relay module is a module used to connect two different devices. Powered by the DC24V bus signal, electrical isolation between input and output, the signal transmission bus isolation detector, can enhance the anti-interference capability of the whole system, and has extended bus communication distance function detector. Relay module is mainly used in the area where the bus is in strong electromagnetic interference and the length of the bus is longer than 1000m and needs to extend the communication distance of the bus.
