What is the difference between RJ45 and RJ11?

What is the difference between RJ45 and RJ11? RJ45 network cable plug RJ45 network cable plug, also known as Crystal Head, a total of eight core made, widely used in local area network and ADSL broadband internet users between the network equipment cable (called five wire or twisted pair) connection. RJ45 and RJ11 distinguish between different standards, different sizes. Due to the size difference between the two (4 or 6 pins for RJ11 and 8 pins for RJ45) , it is obvious that the RJ45 plug can not be inserted into the RJ11 Jack. The reverse is physically possible (the RJ11 plug is smaller than the RJ45 Jack) , giving the false impression that the two should or can work together. Not really. RJ11 plugs are not recommended for RJ45 sockets. Because the RJ11 is not international standard, its size, insertion strength, insertion angle, and so on are not uniformly designed in accordance with international standards for plug-in design, there is no guarantee of interoperability.

They even cause damage to both. Since the RJ11 plug is smaller than the RJ45 jack, the plastic parts on both sides of the plug will damage the metal pins of the inserted Jack. The RJ-45 port of the 10BASE-T network is usually identified as“ETH” in the router, while the RJ-45 port of the 100Base-TX network is usually identified as“10/100BTX”, this is mainly the current fast Ethernet router products or the use of 10/100Mbps bandwidth adaptive. The left figure shows the 10BASE-TX network RJ-45 port, while the right figure shows the 10/100Base-TX network RJ-45 port. In fact, the two RJ-45 port itself is exactly the same, but the port of the corresponding network circuit structure is different, so can not be randomly connected.

What is RJ45 interface RJ45 interface is usually used for data transmission, the most common application for network card interface. RJ-45 port is our most common port, it is our common 10BASE-T port, because in Fast Ethernet also mainly use twisted pair as the transmission medium RJ-45 is a type of different connector; RJ45 head according to the sort of line there are two different methods, one is orange-white, orange, green-white, blue, blue-white, green, brown-white, Brown; The other is green-white, green-white, orange-white, blue-white, orange-white, brown-white, Brown; therefore, the use of RJ45 connector line there are two: straight line, cross-line.

RJ45 network card interface 10100base TX RJ45 interface is commonly used Ethernet interface, support 10 megabits and 100 megabits adaptive network connection speed, there are two common types of RJ45 interfaces: DTE types for Ethernet cards, router Ethernet interfaces, and so on, and DCE types for switches and so on. DTE we can call"Data terminal device", DCE we can call"Data communication device". In a sense, DTE devices are called"Active communication devices" and DCE devices are called"Passive communication devices". When two devices of the same type communicate using the RJ45 interface, you must use a cross-line connection.