What are the differences between RJ45 and RJ11 connectors?
The most commonly used component in home network is Ethernet cable. Of course, various RJ connectors such as RJ45 connector or RJ11 connector are also used. The letter "RJ" is used to express the registered socket. It is a standard telecommunications network interface designed by Bell systems and managed by the Federal Communications Commission (FCC). It connects voice and data equipment to services or long-distance carriers provided by local switching operators.
RJ45 and RJ11 connectors are similar in appearance, but they have some differences. In terms of application, structure and wiring scheme 。
1. Application difference between RJ45 connector and RJ11 connector.
The actual location used is the biggest difference between the two. RJ45 connector is used to connect computers or other network elements; RJ11 is used for telephone, ADSL and modem cables.
2. Structural difference between RJ45 connector and RJ11 connector.
Carefully observe the two connectors. There are only four wires in RJ11 and eight wires in RJ45. RJ45 connectors are larger than RJ11 because they must accommodate more wires.
3. The difference of wiring scheme between RJ45 connector and RJ11 connector.
The classic RJ11 connector has six terminals, and generally only the middle four pins are used. For example, pots (ordinary old telephone line) usually includes two pairs of wires, which are designed to be used in two independent telephone lines. The central pin (red and green) includes the first telephone line, and the connection mode of the telephone system is also different.
As for RJ45 connector, it has two different connection modes - t-568a and t-568b. These two routing schemes can be used to make cross cables or direct cables. The crossover cable has a t-568a connector at one end and a t-568b connector at the other end. When there is no router, hub or switch, it is usually used to connect directly to the computer. There are t-568a or t-568b at both ends of the straight cable to connect different types of equipment.
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