What is style of fire alarm system wiring such as style W Z B or Y?

Fire alarm system wiring styles refer to the configuration and arrangement of the wiring used to connect devices within the system. Styles are designated by letters and indicate how circuits are arranged and how devices are interconnected. For example, Style W is a conventional circuit that allows for a loop of devices, while Style Z provides a more complex arrangement with a return path for signals, enhancing reliability. Style Y indicates a circuit configuration where devices are wired in a way that ensures they can still function even if one segment of the circuit fails.