What is the RJ45 interface?

The RJ45 interface is typically used for data transmission, and the most common application is the NIC interface.

RJ45 is a type of different joints; RJ45 head According to the order of the line there are two different ways, one is orange white, orange, green, blue, blue, white, green, brown, Brown, the other is green, white, green, orange, blue, blue, white, orange, brown, Brown, so there are two lines that use the RJ45 connector: Straight line, crossed line.

RJ45 Type Network Card interface

The 100base TX RJ45 interface is a common Ethernet interface that supports 10 gigabit and 100 Gigabit Adaptive network connection speeds, and there are two common RJ45 interfaces: DTE types for Ethernet network adapters, router Ethernet interfaces, and DCE types for switches. DTE we can call it "Data terminal equipment", DCE we can call "data communication device". In a sense, a DTE device is called an "active communication device", and a DCE device is called a "passive communication device." When two types of devices use the RJ45 interface to connect to communicate, you must use a crossover line to connect.

RJ45 Type Cable Plug

RJ45-type network cable plug also known as Crystal Head, a total of eight cores made, widely used in LAN and ADSL broadband Internet users of network equipment between networks (called five-type line or twisted pair) of the connection.

The difference between RJ45 and RJ11

Different standards, different sizes. Because the size of the two is different (RJ11 is 4 or 6 pins, RJ45 is a 8-pin connecting device), it is obvious that RJ45 plugs cannot be plugged into the RJ11 jack. Conversely, it is physically feasible (RJ11 plugs are smaller than RJ45 jacks), which makes people think they should or can work together. That's not actually the case. It is strongly recommended that you do not use RJ11 plugs for RJ45 jacks.

Because the RJ11 is not international standard, its size, insert strength, insertion angle and so on does not unify according to the International Standard Connector design request, therefore cannot ensure can have the interoperability. They even cause damage to both. Because the RJ11 plug is smaller than the RJ45 jack, the plastic parts on either side of the plug will damage the metal pins of the inserted jack.