Short for Category 5, network cabling that consists of four twisted pairs of copper wire terminated by RJ45 connectors. Cat-5 cabling supports frequencies up to 100 MHz and speeds up to 1000 Mbps. It can be used for ATM, token ring, 1000Base-T, 100Base-T, and 10Base-Tnetworking.
Computers hooked up to LANs are connected using Cat-5 cables, so if you're on a LAN, most likely the cable running out of the back of your PC is Category 5.
Cat-5 is based on the EIA/TIA 568 Commercial Building Telecommunications Wiring Standard developed by the Electronics Industries Association as requested by the Computer Communications Industry Association in 1985.
Stay up to date on the latest developments in Internet terminology with a free weekly newsletter from Webopedia. Join to subscribe now.
Webopedia's student apps roundup will help you to better organize your class schedule and stay on top of assignments and homework. Read More »List of Free Shorten URL Services
A URL shortener is a way to make a long Web address shorter. Try this list of free services. Read More »Top 10 Tech Terms of 2015
The most popular Webopedia definitions of 2015. Read More »
Java is a high-level programming language. This guide describes the basics of Java, providing an overview of syntax, variables, data types and... Read More »Java Basics, Part 2
This second Study Guide describes the basics of Java, providing an overview of operators, modifiers and control Structures. Read More »The 7 Layers of the OSI Model
The Open System Interconnection (OSI) model defines a networking framework to implement protocols in seven layers. Use this handy guide to compare... Read More »