Just what is an ethernet splitter? Do not make the collective false belief some might after looking on the internet and think they can use it to split an internet connection. As the name may imply, it's a 'splitter', so why shouldn't you be able to split your connection and use it on different computers? But the truth is they do not split your internet connection. Read further to see what a splitter is best suited and how they should be used and setup.
Ethernet splitters, as mentioned above, are not for sharing a connection. Do not be like some individuals who only discover this after they purchase it. So you may ask, what's it for then? A Splitter is intended to reduce how much cat 5 cable you need when connecting two networks. What we are speaking about here isn't an 'internet' network, but rather 2 LANs (local area networks) or 2 or more computers. Ethernet cable splitters must be used in pairs. They work because LAN traffic only uses 4 wires of an ethernet cable, but these cables actually have 8 wires internally.
So, an ethernet splitter can save on cable by forcing two lanes of traffic down one ethernet cable. Hopefully you can see now how they enable you to save on cable. If you had two computers in one room and needed to connect them with cable to two other computers in another room, you could run two sets of cables or you could use a pair of ethernet splitters. When using the ethernet splitters then you only need one cable and a splitter at either end. This is a typical scenario of how ethernet cable splitters can be used.
Another problem people do not realize is that splitters need to be used in pairs. Many people simply buy one ethernet cable splitter and get frustrated because nothing works. Pairs are required because the traffic going in and out of the cable needs to be merged on one end before it goes in and then separated on the other end when the traffic comes out. Pairs are required because the traffic going in and out of the cable needs to be merged on one end before it goes in and then separated on the other end when the traffic comes out.
If only one splitter were used, then there would be confusion at the receiving end. The receiving device sees one cable with 2 lanes of network traffic, this is not how network traffic should travel. This issue is solved by using a splitter which correctly separates the single lane of traffic back into two lanes before sending it onto the receiving computers. This is why using pairs of ethernet splitters is crucial, otherwise nothing will work.
Now you can probably see why and how ethernet cable splitters are used. Splitters are a good way for connecting just a few computers in a network and cutting down on the amount of cable that is required. Just remember they are not used for sharing internet connections.