Question

Explain about RJ45 connector.

Answer 1

1. The RJ45 connector is a small plastic cup which will be used to connect the wire inside the connector and ready to connect the Internet.
2. The RJ45 connector looks similar like a telephone jack but it looks slightly wider.
3. The Ethernet cables are sometime called as RJ45 cables.
4. In RJ45 the “RJ” stands for the Registered Jack and the “45” simply refers to the number of interface standard in the cable.
5. Each RJ45 connector has eight pins and connected to each end of the Ethernet cable, since it has 8-position, 8-contact (8P8C) modular plug,
6. It is also known as 8P8C connector. These plugs (connector) are then inserted into Ethernet port of the network card.

• Wiring schemes and color codes of the connector:

1. The RJ45 connector has eight small jack inside to connect eight small wires of the patch cable.
2. The eight cables are in eight different colors. Let’s discuss that eight colors and where does that eight colors connect to the RJ45 connector.
3. Wiring schemes specifies how the wires to be connected with RJ45 connector. There are two wiring schemes available to terminate the twisted-pair cable on each end, which are T-568A and T-568B.
4. Although four pairs of wires are available in the cable, Ethernet uses only two pairs: Orange and Green. The other two colors (blue and brown) can be used ISDN or phone connections.