The RJ45 connector is used for the termination of the data cable to realize the connection and modification of equipment and distribution frame modules. The RJ45 crystal head is required to have good conduction performance; the gold-plated thickness of the contact three-pronged reed is 50μm, which meets the Super Category 5 transmission standard and conforms to the T568A and T568B line sequence; it has the functions of preventing loosening, plugging and unplugging, and self-locking.

The RJ45 connector is a standard connector in copper cabling, and it and the socket (RJ45 module) together form a complete connector unit. The connector composed of these two components is connected between the wires to realize the electrical continuity of the wires. It is also an integral part of the finished jumper of the integrated wiring technology, and the RJ45 crystal head is usually connected to both ends of the twisted pair cable. In the standard integrated wiring design and installation, this accessory product is usually not listed separately, that is, it is not recommended that the user complete the connection between the twisted pair and the RJ45 plug by himself.

Classification

RJ45 connectors are divided into two types: unshielded and shielded. The shielded RJ45 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 connectors often use a non-slip plug boot to protect the connector plug, prevent slippage and facilitate insertion and removal, and it is also available in a variety of color options to provide the same color as the embedded icon for proper connection.

wiremap connection

The RJ45 plug and twisted pair are terminated in two structures, T568A or T568B, which are the structures supported by the TIA/EIA-568-A and TIA/EIA-568-B integrated wiring standards. The sequence number of the RJ45 crystal header pins should be observed as follows: turn the front of the RJ45 plug (the side with the copper pins) toward you, the copper pin end up, and the connecting cable end down, and connect the 8 copper pins from left to right. The needles are numbered from 1 to 8 in sequence.

The corresponding thread sequence from lead pin 1 to lead pin 8 is:

T568A: white-green, green, white-orange, blue, white-blue, orange, white-brown, brown.

T568B: White-orange, orange, white-green, blue, white-blue, green, white-brown, brown.

There is no essential difference between the two international standards, only the difference in color. It should be noted that when connecting two RJ45 crystal heads, it must be ensured that the pair of pins 1 and 2 is a winding pair, and the pair of pins 3 and 6 is a winding pair. , 4 and 5 feet are a winding pair, and 7 and 8 feet are a winding pair. In the same integrated wiring system project, only one connection standard can be used. The TIA/EIA-568-B standard is generally used for the production of connecting wires, sockets, patch panels, etc., otherwise, it should be clearly marked.

The cable needs to be terminated with the same type of connection device. For example, Category 5 and Category 6 connectors are similar in appearance, but are physically different. Terminating a Category 5e cable with a Category 3 standard connector or patch panel reduces the performance of the cable channel to Category 3. Therefore, in order to ensure the performance index of the cable, the module connector must also meet the corresponding standards.