The POE-151S is an IEEE 802.3af Power over Ethernet Injector that provides DC 48V over Ethernet cables. The POE-151S IEEE 802.3af Power over Ethernet Injector inserts DC Voltage into Cat.5 cable, allowing the cable between the Injector (POE-151) and Splitter (POE-151S-5V/9V/12V) to transfer data and power simultaneously. The maximum distance between the Injector (POE-151) and Splitter (POE-151S-5V/9V/12V) is 100 meters. With POE-151 being installed, it combines the Ethernet digital data with power over the twisted pair cables as an IEEE 802.3af Power over Ethernet Injector. And the IEEE 802.3af Power over Ethernet splitter shall separate the digital data and the power into two outputs.