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I stated exclude the PHY IC. 10G PHY ICs with EDC dissipate little more than 1W PD (linear) and
one without EDC (limiting) dissipate little bit less than 1W.
Bruce Tolley wrote:
Ali Good point Just to be clear, your PD number excludes the power/thermal burden of any associated ICs, for example XAUI serdes and XAUI to XFI/SFI gasket chip. Bruce Bruce Tolley Vice President, Marketing Solarflare Communications 9501 Jeronimo Road,Suite 250 Irvine, California 92618 ip phone 949 581 6830 X2014 mobile 650 862 1074 email@example.com -----Original Message----- From: Ali Ghiasi [mailto:aghiasi@BROADCOM.COM] Sent: Tuesday, April 10, 2007 12:00 PM To: STDS-802-3-HSSG@listserv.ieee.org Subject: Re: [HSSG] 40G MAC Rate Discussion Mikael Market adoption is the function of power, size, cost, and availability. Any solution which increases dramatically power consumption of a port or reduce total face plate data capacity will face market adoption. I like to put out what is possible currently with SFP+: - 1W PD for SR (300 m) and LR (10 km) reach - 48 ports of 10Gig on a 1U height chassis The 40G and 100G solution should be benchmark against these target, unless they can offer power and density advantage their market adaptation will be challenged. I know there is readily available solution based on QSFP that could do 40G copper with twin-ax cables. Copper solution are very attractive for sub-10m as they offer order of magnitude cost advantage. Longer reach cable not as attractive as you have to use heavier gage which increase the cable size, weight, cost, and the complexity of receiver increases. Thanks, Ali Mikael Abrahamsson wrote:On Tue, 10 Apr 2007, Paul Kolesar wrote:If this relationship is true and from what I know of such things, then the cost to the end user of an installed, tested, warranted,typical-length,12-fiber, MM structured cabling link, consisting of a cable terminated atCould you please do a comparison relating to 10GBASE-T as well? I do believe volume takes off when there is a copper alternative (due to lower cost both for cabling and equipment), I am interested in how this would relate in cost to a 40G fiber alternative, and/or if there is a proposed 40G copper variant.
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