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RJ45 to RJ11 Explained

When it comes to connecting to the internet or your home phone, it’s important to know the type of cables you need. Knowing what these cables look like and knowing the name of each cable as well as telling the difference between the two cables is also important. If you’re connecting to the internet, whether it’s direct connect or through your modem, the cable you’re going to want to use is a RJ45 connector. The RJ45, short for registered Jack-45, is an 8-pin/8-position plug or jack. Connecting your home phone to the phone jack in your home or office you would want to use a RJ11 connector. The RJ11 connector also works with fax machines and modems. Both of these connectors look similar but following a few basic rules you’ll easily be able to tell the difference. Where the RJ24 has the 8-pin/8-position, also known as 8P8C, the RJ11 has six pins to run three copper pairs. The RJ45 connector is longer and more rectangular in shape where as the RJ11 is squared in shape and more compact.

How to Convert

RJ45 to RJ11 adapter

Though these two connections are for different uses, the RJ45 can be converted into a RJ11 using a RJ45 to RJ11 adapter if need be. There are two different ways this can be performed. The easiest way to convert a RJ45 to RJ11 is to use a converter but there is another way in a pinch. By replacing the connectors you can easily make your RJ45 connector into a RJ11 connector, permanently. Though, if you decide to go with the RJ45 to RJ11 converter, it’s best to purchase a product that will last you for years and will also keep a steady connection. Going cheaper is not always best. Make sure to purchase a converter with a company you know rather than something that is cheap and poorly made. If you’re new to purchasing a product like this please make sure to do some research on well known brands. Be sure to look at high reviews rather than lower prices. Like the saying goes, “you get what you pay for”.

rj45 to rj11 cable

Assuming you already have a RJ45 cable and want to manually convert it to a RJ11 connector, take a pair of wire cutters and cut the RJ45 connector off the end of the cable. Carefully strip roughly one inch of the outer cable insulation where you will reveal four pairs of inner wires. Arrange the four pairs of wires from left to right in the following order: White-and green, white-and-orange, solid blue, white-and-blue, solid orange and lastly the solid green wire. Once the wires are arranged in this order, carefully cut off the solid brown and the white-and-brown wires to the point where the wires are flush with the outer insulation. Holding the RJ11 connector in your left hand with the plastic locking tab on the bottom, insert the white-and-green wire closest to the left side in the connector. Continuing with the other wires in order from left to right until all are inserted where the solid green wire will be the closest to the right side. Once this is completed, it’s important to make sure all wires are properly positioned in the RJ11 connector to minimize signal interference. All wires should be slid as far as possible into the RJ11 connector until the insulation is flush with the connector. To finish up your project, insert the RJ11 connector into a crimping tool and squeeze until the connector clicks together then trim off excess wire that may be protruding through the front of the connector. Don’t forget to complete the other end following the same steps completing your RJ45 to RJ11 conversion.