Ethernet cables connect computers, routers, modems, and peripherals such as printers to Ethernet networks and communication cards. Cables carry signals that allow data transfer over a local or wide area network. Ethernet couplers are plastic or metal connectors placed between two Ethernets. The coupler allows you to join cables together and make a longer cable. This computing accessory makes it unnecessary to open up an Ethernet cable and expose the wiring so it can be spliced into a second cable.
Cat 5 cable with RJ45 plug.
A standard Ethernet coupler is a small rectangular box that is open at both ends. The design allows the signal from the cable that plugs into each end to travel to the cable that plugs into the opposite end. Inside each open side of the Ethernet coupler are corresponding strands that match those of the cable.
Ethernet cables are often used to make physical connections to routers.
An Ethernet coupler has color-coded wires inside the open end of the coupler box. When someone properly inserts the end of an Ethernet cable that has connectors covered with a plastic sleeve, the cable can make contact with the wires inside the coupler box. A coupling box also has a notch that corresponds to a flexible guide in the cable jacket. This notch allows you to secure the cable and prevents it from being inserted incorrectly. To complete the coupler, insert the second Ethernet cable into the opposite end of the coupler box.
Before you buy an Ethernet coupler, you need to determine the type of Ethernet cable it will be connected to. The most common classes of Ethernet cables used by consumers are Cat 5, Cat 5e, Cat 6, and Cat 6a. Each of these cables has a different data transmission speed. These cables typically have their rating printed on their outer protective jacket.
Cat 6 cables are backwards compatible with Cat 5 cables, but ideally match cable types and couplers when connecting Ethernet cables. Ethernet coupler retailers have specifications that match Cat 5 or Cat 6 cables. Using an incorrectly rated Ethernet coupler may result in loss of data transmission signal or failure between the network card and the device. to which it is connected.
The maximum length, including the Ethernet couplers used in the configuration, is different for each class of cable. The upper limit for Cat 5 cables is 328 feet (100 meters). For Cat 6 cables, the maximum recommended cable length is the same; in mixed network cabling configurations, however, the recommended length is reduced to 180 feet (55 meters).
