What is an Rj45 connector? We don't necessarily know what it looks like, but in today's Internet age, as long as the Internet is useful, there must be RJ45. While we don't necessarily recognize it, we use it almost every day. Then let us unravel the mystery of the RJ45 connector together.
RJ45 connectors are used in many places in our daily life. It can be said that where the network is useful, RJ45 connectors are basically used, such as on computers, on modems (English name Modem), and Other places where the network, network cables, etc. are used. The RJ45 connector is a kind of information socket (ie, communication outlet) connector in the wiring system. This RJ45 connector is composed of a plug (joint, crystal head) and a socket (module), and each plug is composed of There are 8 grooves and 8 contacts. RJ= (Registered Jack) abbreviation, meaning "registered socket". In FCC, RJ is the interface describing the public telecommunication network. RJ45 of the computer network is a common name for the standard 8-bit modular interface. The RJ45 connector composed of these two components is connected between the wires to achieve the electrical continuity of the wires.
The role of the RJ45 connector
The RJ45 connector plug is also commonly known as the RJ45 modular plug (RJ45 Modular Plug), which is used for the termination of data cables to realize the connection and modification of equipment and distribution frame modules. The RJ45 crystal head is made of eight cores, and is widely used in the connection of network cables (called five types of lines or twisted pairs) between network devices of LAN and ADSL broadband Internet users. It has the functions of preventing loosening, plugging and unplugging, and self-locking. The RJ45 connector plug is a standard connector in copper cable wiring. It and the socket (RJ45 module) together form a complete connector unit. The connector composed of these two components is mainly connected between the wires in order to realize the wire electrical continuity. RJ45 usually connects the end to an Ethernet cable and is used to connect various network devices such as computers, routers, switches, etc.
Classification of RJ45 connectors
There are two types of RJ45 connector plugs: unshielded and shielded. The shielded RJ45 connector plug is covered with a shielding cladding, and its physical appearance is no different from that of an unshielded plug. There is also an industrial shielded RJ45 plug specially designed for the factory environment, which is used in conjunction with the shielded module. RJ45 plugs often use a non-slip plug sheath to protect the connector, prevent slipping and facilitate plugging and unplugging. In addition, it has various color options and can provide the same color as the embedded icon for proper connection.
RJ45 Connector Specifications
The commonly used RJ45 connector unshielded module is 2cm high, 2cm wide, and 3cm thick. 90° (vertical) or 45° oblique installation, special process design provides at least 750 times of repeated plugging and unplugging. The module uses the T568-A and T568-B wiring common labels. This kind of module is the most widely used module in the integrated wiring system. No matter from three categories, five categories, or super five categories and six categories, its shape remains quite consistent.
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RJ45 network card interface
The 10/100base-tx RJ45 interface is a commonly used Ethernet interface that supports 10M and 100M adaptive network connection speeds. There are two types of common RJ45 interfaces: the DTE type used for Ethernet network cards, router Ethernet interfaces, etc., There is also a DCE type for switches etc. DTE can be called "data terminal equipment", and DCE can be called "data communication equipment". In a sense, DTE equipment is called "active communication equipment", and DCE equipment is called "passive communication equipment". When two devices of the same type use the RJ45 interface to communicate, they must be connected with a crossover cable.
All in all, the RJ45 connector is a Modular Plug that connects various network devices, such as computers, routers, and switches. Interfaces with different rate specifications are matched according to different network speeds, such as 10/100base-tx RJ45 applied to Ethernet interfaces.
After this introduction, do you already have a little understanding of the RJ45 connector? If you still don't know what it is, and you still have doubts about the RJ45 connector, please watch the next round of CETUS explanation, thank you. Welcome to follow us.
