one ethercon cable two connections
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T-adapters for CAT5e (ethernet) applications are great cost saving devices that help to reduce the number of lines needed to connect two distant points. They ARE NOT splitters in the traditional sense. You CAN NOT use it to split a single port on a modem, computer, switch, router or hub. What they do allow you to do is connect 2 ports on a switch, hub or router to 2 different computers using a single Ethernet cable to bridge the two points. It takes the initial two Ethernet connections from two PC's into the two female ports on the "T" adapter. The male Ethernet cable attached to the "T" adapter, connects to a wall plate/inline coupler/network panel.
Quote: A normal ethernet cable has 4 pairs but only 2 of those pairs are used under normal conditions. Those 2 pairs are used on pins 1,2,3 & 6 If you wanted to use the other 2 pair for something else, you'd see that they would be on pins 4,5,7 & 8, but that isnt going to work because the device you want to use expects to use pins 1,2,3 & 6 So what the splitter is doing is taking the 4 pairs of wire, splitting off the first 2 pair which will end up on pins 1,2,3 & 6 of first connector, then it splits off the second 2 pair and puts them on pins 1,2,3 & 6 of the 2nd connector.