RJ45 Wall Jack Wiring Diagram: A Comprehensive Guide

RJ45 or Registered Jack-45 is an Ethernet cable that allows data transmission through twisted pair cables. RJ45 wall jack wiring diagram describes how to connect and terminate the Ethernet cable to wall plates that can hold multiple RJ45 connectors. In this article, we will provide you with a step-by-step guide on how to wire an RJ45 wall jack.

Introduction to RJ45 Wall Jack Wiring Diagram

Before we dive into the wiring process, let’s first understand the components of an RJ45 wall jack. RJ45 wall jack consists of a faceplate, a back box or bracket, and RJ45 connectors. The faceplate is the visible part that you see on the wall, and it can hold multiple RJ45 connectors. The back box or bracket is the part that you fix to the wall, and it provides the supporting structure for the faceplate. It also has knockouts for cable entry and exit.

RJ45 connector has eight wires that are color-coded as per the TIA/EIA 568A or 568B standard. The standard specifies the color coding of the wires to ensure compatibility across different devices. The standard also defines two wiring schemes, T568A and T568B, that you can use to wire the RJ45 connector.

Tools and Materials Required

Before you start the wiring process, make sure you have the following tools and materials:

Tools Materials
Screwdriver RJ45 wall jack
Punch Down Tool Category 5e or 6 Ethernet cable
Cable Tester Wall Plate

Make sure your Ethernet cable is of good quality and meets the Cat5e or Cat6 standard. Also, ensure that you have a wall plate that matches your faceplate.

Wiring Process

Step 1: Mount the Back Box or Bracket on the Wall

The first step is to mount the back box or bracket on the wall. Use a screwdriver to secure the back box or bracket on the wall. Make sure it is level and flush with the wall.

Step 2: Prepare the Ethernet Cable

Next, prepare your Ethernet cable by stripping two inches of the outer jacket using a cable stripper. You will see four twisted pairs of wires. Untwist each pair and ensure that they are straight.

Step 3: Arrange the Wires According to the Wiring Standard

Arrange the wires according to the wiring standard you will be using, either T568A or T568B. The wiring standards are as follows:

T568A T568B
Green/White Orange/White
Green Orange
Orange/White Green/White
Blue Blue
Blue/White Blue/White
Orange Green
Brown/White Brown/White
Brown Brown

Ensure that you arrange the wires in the correct order. If you are using a stranded cable, you will need to untwist the wires a bit more so that they can fit into the connector.

Step 4: Insert the Wires into the RJ45 Connector

Insert the wires into the RJ45 connector. You can use either a straight or cross-over cable, depending on your needs. Use a punch-down tool to secure the wires in place. Ensure that the wires are fully inserted and seated correctly. Repeat the process for all the connectors you want to install.

Step 5: Attach the Faceplate to the Back Box or Bracket

Attach the faceplate to the back box or bracket. Secure the faceplate using screws or clips provided. Make sure it is level and flush with the wall.

Step 6: Test the Connection

Once you have wired all the connectors, use a cable tester to check the connections. Ensure that the cable tester shows a good connection for all connectors. If there is a problem, recheck the wiring and test again.

FAQs

What is the difference between T568A and T568B wiring standards?

The difference between T568A and T568B wiring standards is the color coding of the wires. T568A uses green/white, green, orange/white, blue, blue/white, orange, brown/white, and brown wires. T568B uses orange/white, orange, green/white, blue, blue/white, green, brown/white, and brown wires. Both standards are equally valid and are used interchangeably. However, it is recommended to use one standard consistently to avoid confusion.

Can I use a Cat5e cable with a Cat6 wall jack?

Yes, you can use a Cat5e cable with a Cat6 wall jack. The wall jack is backward compatible and can accommodate both Cat5e and Cat6 cables. However, it is recommended to use a Cat6 cable with a Cat6 wall jack to maximize performance.

Do I need to use a punch-down tool to wire the RJ45 connector?

Yes, you need to use a punch-down tool to wire the RJ45 connector. The punch-down tool ensures that the wires are securely fastened and make good contact with the connector. It also helps in trimming the excess wires to ensure a neat and tidy installation.

What is the maximum distance for Ethernet cables?

The maximum distance for Ethernet cables depends on the type of cable and the data rate. For Cat5e and Cat6 cables, the maximum distance is 100 meters or 328 feet. Beyond this distance, the signal may degrade, and there may be data loss or errors. It is recommended to use signal boosters or repeaters to extend the distance beyond 100 meters.

What is the difference between a straight and cross-over cable?

A straight cable is used to connect different devices, such as a computer to a switch or a router to a modem. The wires at one end of the cable are arranged in the same order as the other end, following the same standard. A cross-over cable is used to connect similar devices, such as a computer to another computer or a switch to another switch. The wires at one end of the cable are arranged in a different order from the other end, following a different standard. This ensures that the transmitting and receiving devices are connected correctly.

Conclusion

Wiring an RJ45 wall jack may seem complicated, but it is a simple process once you understand the components and the wiring standards. Follow the steps mentioned in this article, and you will be able to wire an RJ45 wall jack easily. Remember to choose the right tools and materials and test the connection after wiring. If you have any questions or doubts, refer to the FAQs or consult a professional.