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For Immediate Release
16 January 2007

Testing with Solarflare® Communications Confirms 10GBASE-T Performance for Three Siemon® Copper Cabling Systems

Watertown, CT and Irvine, CA — Recent testing performed by Solarflare® Communications confirms that Siemon's® 10G 6A™ UTP, 10G 6A F/UTP and Category 7/Class F TERA® copper cabling systems meet or exceed all 10GBASE-T performance parameters dictated by the now ratified IEEE 802.3an-2006 standard.

Three separate Siemon cabling systems were individually tested at Solarflare's test facility (Irvine, CA). Utilizing Solarflare's compliant IEEE 802.3an-2006 10GBASE-T 10Xpress™ PHY products, all tests were performed on 100 metre channel lengths, based on a worst-case six around one (6A1) alien crosstalk configuration. The 10GBASE-T standard requires that all PHY products claiming compliance with the standard perform on this 100 metre worst-case channel. More specifically, the 6A1 configuration simulates a worst-case alien crosstalk environment, with six disturber cables bundled tightly around a seventh victim cable. Full line rate 10Gb/s bi-directional Ethernet traffic was launched on each channel. A total of fourteen Solarflare 10GBASE-T compliant PHY cards were required to simulate a fully stressed environment (i.e. seven PHY's utilized on each end of 6A1 configuration).

Under these challenging worst-case conditions, Siemon's 10G 6A UTP, 10G 6A F/UTP and TERA end-to-end solutions satisfied the 802.3an standard's stringent bit error ratio (BER) requirements for 10Gb/s performance. The TERA S/FTP channel performed particularly well when compared to a typical category 6A UTP channel. The TERA channel exhibited on average an SNR margin of 30.2 dB, which is approximately 6 dB better than a typical category 6A UTP channel.

These tests underscore the commercial viability of 10GBASE-T by confirming overall compliance to full 802.3an system requirements as well as the interoperability of Solarflare's10 Gb/s electronics with the following cabling constructions recognised within IEEE 802.3an: Category 6A UTP, Category 6A F/UTP (screened) and Category 7 S/FTP (shielded), all with 100 metre reach. The two companies will conduct testing on Category 6 UTP at 55 metres in the future.

"Siemon's extensive research and design capabilities were highlighted by Solarflare's results," states Daniel J Mullin, Director of Siemon Labs™, the company's R&D arm. "In addition to our 10G6A UTP solution, the verification of 10G 6A F/UTP and TERA systems confirms the market practicality of screened and shielded systems. This is a great validation of Siemon's expertise and significant investment in screened and shielded technologies over the years ".

According to Bruce Tolley, vice president of marketing at Solarflare, "the successful testing of Siemon's three copper cabling products paves the way for many enterprise data centres and networks to cost-effectively move to high-performance 10 Gigabit Ethernet, It's another important step toward market adoption of this key technology."

Solarflare is the first company to publicly demonstrate 100-metre, standards-compliant 10GBASE-T products, and the first company to deliver samples to customers. These customers require 100 metre reach on their cabling system and demand support of and interoperability with the 10GBASE-T standard. Solarflare products undergo a rigorous test and validation process to ensure 10GBASE-T compliance and 100 metre performance. The 6 around one testing with Siemon shows how robust the 10Xpress solution is at 100 metres.

For more information on Siemon's comprehensive line of end-to-end 10GBASE-T compliant solutions, including 10G 6A UTP, 10G 6A F/UTP and the industry's highest performing, most secure copper cabling solution - Category 7 TERA., visit www.siemon.com/uk/e-catalog.

For more information on Solarflare Communications 10GBASE-T PHY products, visit www.solarflare.com.

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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.
About Solarflare Communications
Solarflare Communications Inc. is a leading silicon vendor delivering Ethernet products that enable the rapid adoption of 10 Gigabit for data center and enterprise networks. Solarflare is the first company to demonstrate and sample to customers a 10GBASE-T PHY reaching 100 meters over an IEEE 802.3an standards-compliant Category 6A link. The company's high-performance Ethernet solutions will lower the cost of 10G networking for data center and enterprise customers. The privately held company is headquartered in Irvine, California with a development center in Cambridge, UK. For more information, visit http://www.solarflare.com.
For further information or supporting picture please contact:
CLEAR Communications
Susann Bladwell, PR Consultant
M: +49 (0)176 7863 4709
E: sbladwell@clearcommunictions.de

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