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Cable Assembly complies with SFF specification for 10 Gbps.
Cable Assembly complies with SFF specification for 10 Gbps.
October 19, 2009 -
Fully compliant with SFF-8431 Revision 4.1 specification, 10 meter SFP+ Copper Cable Assembly can go 3-5 m longer than other passive options. Product uses GORE(TM) EYE-OPENER+® Conductor Technology and low-loss expanded PTFE cable dielectric, which balances waveform distortion penalty and voltage modulation amplitude parameters to achieve results within specification limits set forth by SFF-8431 committee. dWDP and VMA loss are 5.60 dBe and 3.95 dBe, respectively.
Gore Introduces Spec-Compliant, Passive 10 Meter SFP+ Cable
LANDENBERG, PA, OCTOBER 12, 2009 - - W. L. Gore & Associates, Inc. has developed a 10 meter SFP+ copper cable assembly that is fully compliant with the SFF-8431 Revision 4.1 specification. Gore's SFP+ (Small Form-factor Pluggable) offering can go 3 to 5 meters longer than other passive options and provides a lower cost alternative to power-consuming and heat-generating SFP+ transceiver modules. In comprehensive internal testing, Gore is the only cable assembly vendor who has demonstrated this use length while still complying with the SFF specification for 10 Gigabits/second (10 GbE, 10 FCoe).
Through the use of patented GORE(TM) EYE-OPENER+® Conductor Technology and an extremely low loss expanded PTFE cable dielectric, Gore is able to balance the dWDP (waveform distortion penalty) and VMA loss (voltage modulation amplitude) parameters to achieve results within the specification limits set forth by the SFF-8431 committee. Gore has demonstrated typical values for VMA loss of 3.95 dBe and a dWDP of 5.60 dBe. The SFF-8431 specification calls out maximum limits of 4.40 and 6.75, respectively.
Gore's proprietary expanded PTFE is branded as GORE-TEX® in the fabrics market.
Russ Hornung, Product Manager at Gore, comments, "We continue to meet the challenges of the industry and set the benchmark for performance. Quite frankly, we utilize better processes and materials in both our cable and our connector printed circuit boards. Combined with our unique technologies, this allows us to offer a product that is more economical, more efficient, and also more robust than fiber optic transceivers for the critical 10 meter use length for rack-to-rack installations. Additional operational cost savings are realized with this product since it doesn't generate the heat of optical transceivers."
Chris Ericksen, Application Engineer at Gore, adds, "Our unique material set allows us to develop a product that further extends the useful length of passive copper. We see a market that seems to struggle to achieve 5 to 7 meter use lengths reliably." Chris highlights, "The SFF specification was written around the best conventional 8.5 meter cable that the committee identified as being interoperable. They measured the performance and then added margin. Thus, the VMA and dWDP values reflect a maximum 7 meter for a good cable, or something less for a marginal cable. The fact that we can go another 40% is quite remarkable and is a testament to our superior materials and processes."
Since August 2008, Gore has offered both 7 and 8 meter SFP+ passive cables with significant performance margins. The addition of low-profile 2.10 mm cable in January 2009 and now the passive 10 meter cable round out a highly valued platform for Gore.
For more information about Gore's full line of cables and assemblies, visit gore.com/highspeed.
About W. L. Gore & Associates, Inc.
With more than $2.5 billion in annual sales and 9,000 employees in over 50 facilities worldwide, W. L. Gore & Associates, Inc., provides diverse, high-performance solutions in consumer, industrial, electronic, medical, and surgical markets. As well-known for its unique corporate culture as for its products, Gore's 50-year success story rests equally on product and organizational innovation. Perhaps best known as the inventors of expanded PTFE (ePTFE) and the makers of GORE-TEX® fabric, Gore is a leading manufacturer of thousands of advanced technology products that comprise a breadth of capabilities.
Contacts:
General Information:
Jason Rodriguez
USA
Phone: 610-268-1930 E-mail this person Company Information: Name: W. L. Gore & Associates Cable & Assemblies Address: 385 Starr Rd. City: Landenberg State: PA ZIP: 19350 Country: USA Phone: 610-268-1000 FAX: 610-268-1790 http://www.gore.com/electronics
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