As part of the gear I bought second hand I got a lot of the pigtail power injection t pieces. They have 3 pin plugs on all points of the tee. I thought this was odd as the power injection point only needs two cables. So I thought that the data cable on the data injection point must not be connected to anything. So I tested it. I hooked some pixels up to the output plug and the power injection plug and turned on the test signal. All pixels came on. How does this work. I gather the data cable just splits at the junction and goes both ways. So does this mean that each arm of the tee would get the same data passed on from that point. I'm not worried as when I power inject I will only use two wires and the data cable will never be involved but I was just wondering if this could be used as a way to split the signal and control two lines of pixels if for some reason you wanted them to be exactly the same.