What Is an Ethernet Connector?

Ethernet is a method for attaching nearby computers to a network so they can communicate with one another and perhaps access the Internet from a centralized point. The cables used for this type of network have a distinctive look.

Basics

The connector is the part at the end of the cable that gets plugged into an Ethernet port. The back of a desktop computer and the side of a laptop computer usually have an Ethernet port.

Physical Distinctiveness

An Ethernet connector looks a lot like the one used for a home phone but is wider. The technical term for this connector is "8P8C," but it is often incorrectly referred to as "RJ45."

8P8C Terminology

8P8C means "8 Position 8 Contact." This means that the internal cabling is split into eight different sections of wire when it reaches the connector, and all eight of these sections have electrical contact points.

RJ45 Terminology

RJ stands for "registered jack." "Registered" means that the cable follows an industry standard, and "jack" refers to the port that the cable connects to.

Ethernet Connector Uses

In addition to Ethernet networks, 8P8C connectors are also used for serial communication such as GPS devices; they also are used to carry electricity or handle phone calls.

References

• Netgear: What are Ethernet Cables?
• American Tech Supply: EIATIA Standards