Adrian Young Snr. Technical Support Engineer Snr. Technical Support Engineer
ANSI/TIA‐568‐C • Group met in September 2010 Group met in September 2010 – Second discussion to adopt Cat 7A from ISO/IEC – No consensus No consensus • There are errors in the modeling of ISO/IEC 11801:2010 – Class FA limit does not support a three connector model pp
• Cannot simply copy and paste ISO/IEC into TIA • No application for Class FA (more on that in a moment) – Reluctance to work on a new standard with no application – Remember Cat 6 / Class E?
ISO/IEC 11801:2010 • WG3 met two weeks ago in Seattle g • Major work item is ISO/IEC 14763‐2, Planning and installation requirements – IIncludes quality planning, installation practices, documentation, l d lit l i i t ll ti ti d t ti testing, and maintenance. – New recommendations for AxT test sampling. – Still working on guidance for data and power cabling in common pathways.
• Liaison report from IEEE included results of 802.3ba, which p , includes 40G/100G over Twinax; not twisted pair cabling. • Clarification on reflectance requirements for field testing
IEC 14763‐2 Alien Crosstalk Sampling Alien Crosstalk Sampling • Fluke Networks proposal was modified and accepted: p p p Installation size (No. of total links)
• This This is equivalent to acceptance quality level (AQL) of 0,4 %, is equivalent to acceptance quality level (AQL) of 0 4 % normal inspection, general inspection level I as defined in ISO 2859‐1 for populations of up to 500,000 links.
IEEE 802.3 Ethernet Working Group • "Greater Greater than 10 Gb/s Copper Ethernet than 10 Gb/s Copper Ethernet“ Workshop Workshop – August 2009 at Pennsylvania State University
• Presentations and panel discussion participants from p p p a cross section of cabling and switch vendors Cisco Force10
Broadcom Solarflare
Nexans Siemon
Bel Stewart Penn State Univ Penn State Univ.
• No agreement on >10Gb/s Ethernet over Twisted Pair – “Th “The PHY vs. Channel, aka "Chicken or Egg" debate, continues...with chip PHY Ch l k "Chi k E "d b i i h hi vendors saying the cable channel needs to be established first, while the cable manufacturers say the PHYs need to be developed first.” ‐http://www.nexans.us/eservice/US‐en_US/navigatepub_0_‐22211/Nexans_co_sponsors_workshop_investigating_greater_.html p // / / _ / g p _ _ / _ _p _ p_ g g_g _
IEEE 802.3 Ethernet Working Group • IEEE Plenary Meeting 7‐12 November 2010 – Call for Interest on 100 GbE Backplane and Cu Cabling – Focus on Data Centers • Blade servers Bl d • Blade server to top of rack switches • Short distances between racks ( perhaps
