A relay module is an electrical component. Various industries use this circuit board that houses one or more electric switches or relays in different circuits and electrical projects. Relay boards are ...

Last column, I wrote about various applications where fire alarm relays could be used to integrate a commercial fire alarm system with other electrical systems at a customer’s site to provide them ...

In a perfect world, the fire alarm control panel (FACP) would be a system that only required attention during premeditated events such as a valve being closed off for system maintenance or for ...