The CAT5E2PAIRSPLIT is a Type 08 RJ45 splitter, designed to separate the 4-pair configuration into two 2-pair sets. This allows you to operate two devices over a single Cat5e cable to prevent having to run another wire. To operate correctly, each network-capable device you use requires its own IP address. This includes computers, mobile devices, printer, VoIP phones, and many other home and office essentials. Using a splitter improperly can cause many performance issues including unreliable or slow connections. To avoid this issue, you will need two of the CAT5E2PAIRSPLIT splitters.
To use a Cat5E splitter, you connect two cables from your router or switch to one splitter then attach your splitter to the single Ethernet run. Then, on the other side of the run, you connect your second Ethernet splitter and then run two cables to each device. Even though Ethernet splitters will allow you to connect two devices to one wire, it is still advised that only device be used at once.