The power lead assembly can be ordered as a separate part, in addition to the one supplied with all transceivers. The 12VDC power supply cables are 5m in length and supplied with in–line fuses and an ignition sensing wire. The loudspeaker interface is offered on a standard 2-pole connector and the 4 Input/Output lines are presented on free tails, typically for connection to one or more of the three external alarm inputs and external alarm output.