Honeywell XLS140 Intelligent Addressable Fire Alarm System, as a stand-alone small-to-large system, or as a large network, Honeywell’s XLS140 meets virtually every application requirement. Designed with modularity and for ease of system planning, the XLS140 can be configured with just a few devices for small building applications, or for a large campus or high-rise application. Simply add additional peripheral equipment to suit the application.