3/22/2023 0 Comments Rj11 connector![]() 4-core telephone cable are listed at Standard 4-Core. ![]() RJ11 and RJ12 are commonly used for telephone systems with RJ12 being used in different configurationsĥ. Connector RJ11 / 4 pins - Micro wiring plug - Useful-advices. RJ11 4-pin connector used with telephone cable from fax machines, ADSL routers, analogue telephones etc. RJ12 utilizes all six slots while RJ11 only uses four of the six available slotsĤ. RJ11 and RJ12 only differs in the wiringģ. RJ11 and RJ12 wiring uses the same six slot connectorĢ. With that said the additional two lines that are made available when using the RJ12 standard can become quite handy in a PBX system where you can add extra lines on your own.ġ. There is really no individual decision whether to choose RJ11 or RJ12 in your connection as this is often dictated by the telephone company that you are subscribed to. This has even developed into the connector itself being popularly referred to as RJ11. RJ11, on the other hand, is relatively very common because it is used in the majority of the phone units and wiring of some telephone companies. Because of this, RJ12 is not really very common and only the people who have experience working with large company’s telephone systems are familiar with RJ12 wiring. Keyed telephone systems and PBXs may take advantage of the additional two connectors. But there are also other applications that make use of the RJ12 standard. Because of this, you would need to pay close attention to the cables that you are utilizing as cable used four RJ11 might not be suitable for RJ12, even if they look identical.ĭespite the differences, both wiring standards are used for the same purpose, telephone lines commonly using the center pair. RJ11 is a 6P4C wiring standard and only has four wires connected and the remaining two slots are no longer used. This means that there are also 6 wires that are terminated in the connector, occupying all the available slots. Telephone Connectors with thick 50 micro-inch gold plating on contacts to prevent erosion and extend connector life Data plugs with three-pronged contacts for. The only difference between these two is in how they are wired and the number of the wires that are being used. This is because they both use the same six slot connector. The RJ11 and RJ12 standards are quite closely related and in fact look identical to each other to the uninitiated. It is abbreviated into RJ and is then followed by two digits that identify the specific standard. Given below is the color code description of RJ11.The registered jack standard has been around for some time for people to follow in wiring their telephone lines. RJ11 Connector Pinout and color codeĪs per the standard, the connector with 6 positions and 4 wires is called RJ11. But an advantage of RJ11 is that it can be easily plugged into the jack of RJ45. These days, RJ11 is being replaced by RJ45 on many devices. ![]() It can also be used as an RJ11C jack.Īlthough RJ11 is mainly used in voice communication lines, older versions of fax machines and modems also use RJ11. RJ11W: RJ11W jack is used for wall telephones.It comes with a cord to connect with the line. RJ11C: RJ11C jack is used on a table-top telephone. RJ11 connectors are one of the many modular connector types that are used for telephone, telephone connector wiring and networking applications.RJ11 jack or socket is available in two forms to use on telephone lines. It connects a telephone with the wall socket and handset to the telephone. Since the connector has 6 positions, it can hold up to 3 telephone lines(2 wires/pair are needed for communication). The RJ11 is mainly used in telephone lines. RJ11 is smaller in size compared to the other registered jacks. It is considered as an extra pair, to be used in case of failure of the working pair. One pair of wires in RJ11 is left unused. These 4 wires are used in 2 pairs to make connections. But the technical and general standard for RJ11 is 6P4C. Note: In IT, 6P6C connectors are also addressed as RJ11. That is the connector of RJ11 has 6 positions(sockets) and 4 wires.
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