Power over Ethernet Injector 12V TO 18V 1, Spec: Passive POE (Power Over Ethernet) adapter, ... uses unused pairs of 100baseT Power over Ethernet Injector 12V TO 18V1), Spec: Passive POE (Power Over Ethernet) adapter, uses ... ,5 = positive, RJ45 pins 7,8 = negative.3), voltage IS 12V TO 18V4), Efficiency - DC-DC converter is required for 802 ...