Education

Copper Facts

Communications

Not long ago, it was thought that only fiber optics could handle big bandwidths. Not so. Communication between computers can now achieve data speeds approaching a gigabits per second on twisted pairs of copper wire

Recently introduced HDSL (High-Speed Digital Subscriber Line) and ADSL (Asymmetrical Digital Subscriber Line) technologies are making it possible for telephone companies to capitalize on existing copper lines and for businesses to accommodate lower-cost communications and networking options - without having to switch to high-cost fiber optics.

Category 5 (or better) wiring allows users to take maximum advantage of those new technologies. The most common jacketed cable consists of four tightly twisted pairs of #24 gauge insulated copper conductors. It is extensively used in commercial applications and is finding its way into new homes to meet rising consumer demand. It can accommodate bandwidths of 100 megahertz. Categories 6 and 7, now in development, will achieve even greater capacities - delivering data streams up to 1 gigabit per second.

ISDN (Integrated Services Digital Network) technology is currently available from most telephone companies throughout the country. Although not as fast (128 kilobits per second) as the xDSL technologies, it also allows for voice and data transmissions to be conducted simultaneously on the copper phone wires which exist in most of the nation's housing.

The information provided in this section has been collected from many varied sources and is true and accurate insofar as the Copper Development Association Inc. has been able to determine.

Additional Resources

The CDA web site provides many other resources for people interested in learning more about copper and its alloys.

Take a look at Innovations - our on-line magazine.

Please also check out Copper In Your Home - a section dedicated to consumers, with a special section just for kids!

If you need metallurgical or properties information, take a look at the Standards & Properties section.

Please also take a look at our application specific sections if you are looking for information regarding plumbing, electrical, architecture, and other copper alloy applications.