1Chapter 11111System unitsSystem units 11.1 IntroductionThe basic system consists of three units: The terminal, the antenna and the IPhandset with cradle.There are two different types of antennas, depending on whether you have aSAILOR 500 FleetBroadband system or a SAILOR 250 FleetBroadband system.1.2 TerminalThe terminal – which contains the primary electronic parts – is designed forwall or desktop installation.The terminal supplies 18-29 V DC to the antenna through a single coaxialcable.The DC input for the terminal is designed for both 24 V DC and 12 V DC powersupply.