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For Immediate Release
June 8, 2002

TIA/EIA to Publish Final Category 6 Standard

Officially Ratified Category 6 Cabling Standard (TIA/EIA-568-B.2-1) Opens the Door to a Whole New Realm of Possibilities for Copper-based Infrastructures

Watertown, CT — Years in the works, the TIA TR-42 sub-committee yesterday reached a major milestone by voting to publish the category 6 standard for telecommunications cabling. This represents a giant step forward in standardization of copper-based cabling infrastructures, offering performance parameters that are vastly improved over the TIA/EIA category 5e standard, which was officially approved in November, 1999. Ideal for applications running at 1 gigabit per second or better, the category 6 standard opens wide the door for future high-speed application development.

"This is a tremendous victory for the industry," said John Siemon, VP of engineering for The Siemon Company, and former chairman of the TIA TR-42.1 commercial building cabling committee. "Now, end-users throughout the world can install a standards-based copper cabling system that will provide them with a minimum of 250 MHz bandwidth and guaranteed power sum attenuation to cross talk (PSACR) margins up to 200 MHz - over twice the bandwidth they can get out of category 5e systems. This is the culmination of countless hours of work by members of the TIA TR-42 committee under the leadership of Masood Shariff and Valerie Rybinski. The timing is excellent. With the emergence of real-time data applications such as VoIP, lost packets have an audible impact on transmission quality. Category 6 not only provides a platform for new networking applications, but it enables higher quality of service for digital voice and video to the desk."

Final ratification of the category 6 standard will have a resounding effect on the telecommunications industry. Many end-users and applications developers who were reluctant to invest in technology that was not yet officially standardized can now install a system with confidence that will provide significantly improved performance.

"The approved category 6 standard provides an important benchmark for the industry," said Frank Velleca, business development manager for The Siemon Company. "It gives end-users a common set of performance parameters against which to judge competitive systems."

The Siemon Company is a pioneer in the category 6 marketplace, delivering the first solution to market in 1998. Siemon recently introduced the Ultra 6 line. The first system independently verified to surpass category 6 requirements extrapolated to 300 MHz for both components and systems. Siemon's Ultra 6 solution offers unsurpassed headroom over the new category 6 standard and provides the high-performance required for today's high bandwidth applications while future-proofing the network for the even more demanding multi-gigabit applications of tomorrow.

"The benefits of category 6 vs. category 5e are eye-opening," says Brian Celella, a lead electrical engineer for The Siemon Company and an active member of the TR-42 committee. "For small additional investment, you can have a cabling infrastructure that will deliver significantly higher bandwidth and system performance. When weighed against the time end-users wait for processing or downloads - real productivity time - a category 6 system is actually less expensive than a category 5e system."

For information on calculating total cost of your network and comparing the cost of a Category 5e system with a new Category 6 system, please visit

Final publication of the TIA/EIA-568-B.2-1 standard is scheduled for early July.


About Siemon
Established in 1903, Siemon is an industry leader specialising in the design and manufacture of high quality, high performance low voltage infrastructure solutions and services for data centres, LANs and intelligent buildings. Headquartered in Connecticut, USA, with global sales, technical and logistics expertise spanning 100 countries, Siemon offers a comprehensive suite of copper and optical fibre cabling systems, cabinets, racks, cable management, data centre power and cooling systems and intelligent infrastructure management solutions.

With more than 400 patents specific to structured cabling, Siemon Labs invests heavily in R&D and the development of industry standards, underlining the company’s long-standing commitment to its customers and the industry. Siemon Interconnect Solutions (SIS) is a Siemon business unit comprised of a team of dedicated technical sales professionals supported by Siemon Labs, mechanical, electrical and signal integrity engineers committed to solving industry and customer driven interconnect challenges. Siemon provides custom network infrastructure solutions to OEMs, leading manufacturers, value-added resellers and system integrators.
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