Introduction of the RJ45 Interface for industrial telephone telecom

The RJ45 interface is usually used for data transmission, and the most common application is the network card interface. RJ45 is a type of various connectors (for example: RJ11 is also a type of connector, but it is used on phones).

What Is RJ45 ?

RJ45 interface is the most common twisted-pair connector for Ethernet cables and networks. “RJ” means “registered jack”, which is a standardized telecommunication network interface for connecting voice and data equipment to a service provided by a local exchange carrier or long distance carrier. The physical connectors that registered jacks use are mainly the modular connector and 50-pin miniature ribbon connector types. RJ45 connector is an 8-position, 8-contact (8P8C) modular plug and jack, which is commonly used to connect computers onto Ethernet-based local area networks (LAN). RJ45 cable plug is usually made of a plastic piece with eight pins on the port. Four of the pins are used for sending and receiving data, and the other four are used for other technologies or power networking devices.

T568A or T568B Wiring Standard

T568A and T568B are the two colour codes used for wiring eight-position modular plugs. Both are allowed under the ANSI/TIA/EIA wiring standards. The only difference between the two color codes is that the orange and green pairs are interchanged.

There is no transmission differences between T568A and T568B cabling schemes. North America’s preference is for T568B. Both ends must use the same standard. It makes no difference to the transmission characteristics of data.

T568B wiring pattern is recognized as the preferred wiring pattern.

Wiring an RJ45 to the T568B Specification

When wiring the connector, follow the layout shown. Your connector will conform to the T568B standard.

Use a good quality crimping tool along with quality connectors.

Ningbo Joiwo Explosionproof is specializing in industrial  telephone for more than 15 years.

The telephone could be choosen by Analog type or VOIP type.We use this standsard  RJ45 interface for our telephone which could be used for VOIP/SIP/IP  system.