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RJ45 Connector: RJ45 Connector Color Code, Where and How to Use RJ45

INSERT RJ45 JACK TO IDC CON BULK The RJ45 connector is an eight-pin standard interface that is used to connect a computer to a local area network (LAN).

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Feb 1, 2022

Wanda Susan

An eight-pin standard interface

INSERT RJ45 JACK TO IDC CON BULK

The RJ45 connector is an eight-pin standard interface that is used to connect a computer to a local area network (LAN). This article is going to explain what is RJ45 featuring its pinout, specifications, applications, capabilities, alternatives comparison, and more about the RJ45 connector.

RJ45FC6AS12

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What is RJ45 Connector?

The RJ45 connector is an eight-pin standard interface that is used to connect a computer to a local area network  (LAN). Originally designed for telephone conversations, this connector is now utilized in a variety of applications. RJ45  is an abbreviation for Registered Jack-45. The wiring patterns of the jacks, rather than their physical properties, are the subject of registered jack specifications. The term RJ45 has also come to refer to a variety of Ethernet jack connectors. An 8P8C, or 8 Position/8 Contact connector, is a communications cable modular connector,  It is also known as an RJ45  unofficially.

RJ45 Connector Pinout

RJ45 Connector Pinout

RJ45 Connector Features

  • Crimp-on the plug for use with Cat6 solid Ethernet cable 

  • Includes insert to hold wires in place

  • Gold plated contacts

  • Clear plastic housing

RJ45 Connector Applications

  • Factory Automation

  • Industrial Process Control

  • Industrial Robotics (fabrication and assembly)

  • Test and Measurement Systems

  • Quality Control Systems

  • Voice over Internet Protocol (VOIP) Systems and Devices

  • Internet of Things (IOT) Network Devices

Specifications

HellermannTyton RJ45FC6AS12 technical specifications, attributes, parameters and parts with similar specifications to HellermannTyton RJ45FC6AS12.

RJ45FC6AS12 Tech Specifications

HellermannTyton RJ45FC6AS12 technical specifications, attributes, parameters and parts with similar specifications to HellermannTyton RJ45FC6AS12.

Product Attribute Attribute Value
Factory Lead Time4 Weeks
Part StatusActive
Moisture Sensitivity Level (MSL)1 (Unlimited)
Connector TypeRJ45
Product Attribute Attribute Value
StyleModular
Exterior Type (Adapter End)Modular Jack 8p8c (RJ45, Ethernet)
Interior Type (Adapter End)IDC, Pressdown, Punchdown Block
Exterior Housing ColorSilver
Product Attribute Attribute Value
RoHS StatusRoHS Compliant
RatingsCat6a
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RJ45 VS CAT5 VS CAT6

RJ45 is an electrical connecting standard that specifies the connector and how the wires are organized at the cable's end, whereas CAT5 is an Ethernet cable standard.

 

RJ45 is a connection, and CAT6 is a cable, both of which are used to connect computers in an  Ethernet network. RJ45  has eight pins: four visible colors and four striped pins, four of which are only used for Ethernet. CAT6 has six pins of various colors, one of which is used to connect Ethernet networking.

 

 

RJ45 VS RJ11

RJ45 connectors are often used with Cat5 and Cat6 cables, whereas RJ11 is only used with telephone cables,  Switchescables.  PCs, routers, and other devices in a copper cable network can all be connected with RJ45,  RJ11 connection switches typically have two sockets for a two-line telephone system.

Where to use RJ45?

Ethernet networking relies on RJ45 connectors to transmit voice and data media. They were created as a considerably smaller and less expensive alternative to the older hardwired telephone installation methods. The installation is made easier by the plug-and-play manner. RJ45  is more versatile than RJ11 and can be used for Ethernet networking, telephony, factory automation, and other applications. Ethernet cables, modems, PCs, laptops, printers, and other networking devices are often utilized.

How to Identify RJ45 Interface Color Code?

The two most prevalent wiring techniques for terminating twisted-pair cable onto the connector interface are T568A  and T568B. When connecting an RJ45  connector to a cable, the two standards describe how the individual eight wires are arranged. For electrical compatibility, these wiring configurations have their color scheme. The T-568B wiring design is the one that is most often utilized.

The color convention changes between  T568A and T568B are depicted in the diagram below.

How to Identify Color code

 

There are two different types of connectivity for the two standards. A straight-through connection is one in which both ends of the patch cords are wired to the same standard. If not, the link is a crossover. A crossover  Ethernet cable with a T-568A connector on one end and a T-568B connection on the other is required for some networking applications. When there is no router, hub, or switch accessible, this type of cable is often used for direct computer-to-computer communications.

RJ45 Connector Dimensions Outline

RJ45 Connector Dimensions Outline

RJ45 Connector Manufacturer

HellermannTyton is a leading global manufacturer of systems and solutions which help world-class customers better manage and identify wire, cable, and components. Located in over 34 countries,  HellermannTyton offers an integrated approach in the design, manufacturing, and delivery of its products which result in higher quality and lower costs for our customers.  HellermannTyton serves the aerospace, automotive, data communication, defense, industrial automation, OEM, rail, solar and wind, truck and heavy equipment and wire processing industries: Bundling and Securing, Application Tools, Routing, Protection and Insulation, and Identification

Datasheet PDF

RJ45FC6AS12 Documents

Download datasheets and manufacturer documentation for RJ45FC6AS12

Frequently Asked Questions

Is RJ45 the same as CAT6?
RJ45 is a connector, and CAT6 is a Cable, where both are used for the Ethernet network. RJ45 comes up with eight pins- four apparent colors and the other four in striped, where four only work for Ethernet. CAT6 has six pins in different colors, including those that connect Ethernet networking.
What are the differences between RJ45 and RJ11?
RJ45 connectors commonly connect to Cat5 and Cat6 cables, while RJ11 simply connects to a telephone cable. RJ45 can connect to various devices in a copper cable network such as switches, cables, computers, routers, and so on. Switches with RJ11 connectors comprise mainly two sockets for a 2-line telephone system.
Is Cat5 and RJ45 the same?
RJ45 is an electrical connecting standard that specifies the connector and how the wires are organized at the cable's end, whereas CAT5 is an Ethernet cable standard.
Is RJ45 and Ethernet the same?
RJ45 connectors are commonly seen with Ethernet network cables. Ethernet cables with RJ45 connectors are also called RJ45 cables. These RJ45 cables feature a small plastic plug on each end, and the plugs are inserted into RJ45 jacks of Ethernet devices.
What is the most common wiring technique for terminating twisted-pair cable onto the connector interface?
RJ45 Interface Color Code
What are the two most common wiring techniques for terminating twisted-pair cable onto the connector interface?
T568A and T568B
What is RJ45 an abbreviation for?
Registered Jack-45
What is the RJ45 connector?
An eight-pin standard interface
FAQ
Is RJ45 the same as CAT6?
RJ45 is a connector, and CAT6 is a Cable, where both are used for the Ethernet network. RJ45 comes up with eight pins- four apparent colors and the other four in striped, where four only work for Ethernet. CAT6 has six pins in different colors, including those that connect Ethernet networking.
What are the differences between RJ45 and RJ11?
RJ45 connectors commonly connect to Cat5 and Cat6 cables, while RJ11 simply connects to a telephone cable. RJ45 can connect to various devices in a copper cable network such as switches, cables, computers, routers, and so on. Switches with RJ11 connectors comprise mainly two sockets for a 2-line telephone system.
Is Cat5 and RJ45 the same?
RJ45 is an electrical connecting standard that specifies the connector and how the wires are organized at the cable's end, whereas CAT5 is an Ethernet cable standard.
Is RJ45 and Ethernet the same?
RJ45 connectors are commonly seen with Ethernet network cables. Ethernet cables with RJ45 connectors are also called RJ45 cables. These RJ45 cables feature a small plastic plug on each end, and the plugs are inserted into RJ45 jacks of Ethernet devices.
What is the most common wiring technique for terminating twisted-pair cable onto the connector interface?
RJ45 Interface Color Code
What are the two most common wiring techniques for terminating twisted-pair cable onto the connector interface?
T568A and T568B
What is RJ45 an abbreviation for?
Registered Jack-45
What is the RJ45 connector?
An eight-pin standard interface

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