Accon have just launched their Trilogy system (Patents Pending) which combines a Category A Fire signal, Network data, and Uninterruptable Power through a single Cat5e/6 cable, removing the need to install any services at the door.
With a traditional system, running separate fire signal, network, and power cables to each door or device can sometimes be difficult, time consuming and expensive, PoE is an option but you still have to run a separate fire cable/interface to the door and supply batteries at some point.
