The battery cable is the ideal connection between the NPA-PoE adapter and on alternate power source: such as a car battery. THEREFORE You can cost-intensive and time-consuming CT sparen.Sie to get the cable with integrated 2.5 A fuse and a cable length of 2m.Anwendungsgebiete can be: cars, buses, trucks, ships or any other vehicle with a 12-42 volt power source. IMPORTANT: PoE Injector BLUE" is silent needed Art 83371 MX-NPA-PoE RJ