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For Immediate Release

Siemon Proves Performance Risks Associated with Low-Cost Generic Fiber Assemblies for High Speed Networks

July 20, 2016. Watertown, CT — Siemon, a leading global network infrastructure specialist, has released the results of comprehensive testing on the performance of plug and play optical fiber cable assemblies used in 40 and 100 Gigabit applications. Outlined in a new white paper "A Closer Look at Plug and Play MPO/MTP Assemblies," the results clearly show that lower-cost generic assemblies from unknown suppliers can compromise performance in today's high speed fiber optic links.

Siemon Labs evaluated random samples of multi-fiber MPO/MTP assemblies acquired via standard distribution from four different low-cost assembly houses and from Siemon. Each MPO/MTP fiber assembly was tested to TIA and IEC standards for end face geometry, cleanliness, optical performance and mechanical reliability. Each assembly was also tested to Siemon's specifications which are more stringent to ensure superior performance and application assurance. The testing showed a significant discrepancy between Siemon's high quality products and the generic products, with the majority of the generic assemblies failing to meet minimum standards requirements across the range of performance-critical parameters. Siemon was the only manufacturer to pass all the parameters for all tests.

"With the Internet of Things and Big Data driving the need for more bandwidth and increased transmission speeds to 40 and 100 Gig in data center fiber links that use preterminated plug and play MPO/MTP fiber assemblies, overall performance of these assemblies has become a critical factor," says Mike Corke, fiber application engineer for Siemon. "Unfortunately, not all MPO/MTP assemblies are created equal, and data center managers need to aware that the savings from using substandard components is not worth putting critical network performance at risk."

Part of its LightHouse™ Advanced Fiber Cabling Solutions, Siemon MPO/MTP plug and play assemblies are manufactured using the highest quality materials and via rigorous process control over end face geometry, cleanliness and mechanical reliability to ensure superior optical performance. As detailed in the white paper, the testing clearly demonstrates that strict control of the fiber connector polishing process has a direct correlation to end face geometry and performance, while the design of fiber breakout and furcation sub units has a significant impact on the ability of assemblies to withstand real-life installation conditions.

To access the detailed results of this testing, download the white paper "A Closer Look at Plug and Play MPO/MTP Assemblies" at:


About Siemon
Established in 1903, Siemon is an industry leader specializing in the design and manufacture of high quality, high performance IT infrastructure solutions and services for Data Centers, LANs and Intelligent Buildings. Headquartered in Connecticut, USA, with global sales, technical and logistics expertise spanning 100 countries, Siemon offers the most comprehensive suites of copper and optical fiber cabling systems, cabinets, racks, cable management, data center 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. Through an ongoing commitment to waste and energy reduction, Siemon's environmental sustainability benchmarks are unparalleled in the industry, including 179% global carbon negativity and zero-landfill status
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. We provide custom network infrastructure solutions to: OEM's, Leading Manufacturers, Value-Added Resellers and System Integrators.
Press Contact:
Betsy Conroy
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