A cable splitter gives a person options for connecting two electronic devices with one input feed. A cable splitter has two output jacks and one input jack. The input jack connects to your cable, satellite or antenna. The information going through the input jack goes out of both output jacks. The output jacks connect to televisions, VCRs and DVD players/recorders. The output jacks run the feed from the input jack into two separate rooms or devices. The splitter allows you to watch the same show in different rooms or record the show on a VCR or DVR.
Write the letter "C" on the input jack on the splitter in permanent marker. Next, mark the left output jack with the letter "A," and on the other output jack, write the letter "B."
Connect one end of the coaxial cable to the satellite receiver, cable box or antenna's output jack. Connect the other end of the cable to the splitter jack marked "C."
Attach one end of a coaxial cable to the input jack on one electronic device. It can be a television, VCR, DVD player or DVR. Connect the other end to the splitter jack marked "A."
Hook the last coaxial cable to the input jack on the second electronic device. It can be a television, VCR, DVD player or DVR. Attach the other end of the coaxial cable to the splitter marked "B."
Turn on all the devices connected to the splitter, and make sure the splitter is receiving and sending the signal to each electronic device correctly.
When connecting coaxial cable, always connect the ends of the cable to the opposite jacks. For example, when connecting from an output jack, the other end will be connected to the input jack. Never connect the cable end from an input jack to an input jack. It's like connecting an extension cord to another extension cord. There is only one way to connect them together. Instead of connecting a second device to the splitter's output, you can connect one output jack to a device and the other to the input jack of a second splitter. This allows you space for three devices from one input source. The signal weakens every time you add a splitter.