Since we can't do 3af power with GigE, that one connection would have to be 100Mb. If we're going to use two cables for power let's hope we'll be given the chance to use two data channels as well.
Chuck -----Original Message----- From: Tomo [mailto:[EMAIL PROTECTED] Sent: Wednesday, June 27, 2007 4:14 AM To: [email protected] Subject: Re: [WIRELESS-LAN] The strategic importance of 5GHz The Airwave webinar (for which a link was sent round last week) mentioned that some vendors are looking at providing two Ethernet sockets on MIMO / 802.11n Access Points, so they could draw 2 x 802.3af power connections and one live Ethernet connection. _________________________________ Tomo | Senior Network & Telecommunications Infrastructure Engineer Direct line: +44 (0)20 7000 7777 | Email: [EMAIL PROTECTED] www.london.edu > -----Original Message----- > From: Frank Bulk - iNAME [mailto:[EMAIL PROTECTED] > Sent: 27 June 2007 02:32 > To: [email protected] > Subject: Re: [WIRELESS-LAN] The strategic importance of 5GHz > > Dale: > > I've heard from at least one vendor that a b/g radio with and 802.11n > radio may operate within 802.3af power limits. But I've heard nothing > absolutely definite so far and I anticipate that we'll know more by > the end of the > summer as these products move from short-run samples to production. > > The whole 802.11n PoE and GigE port thing really puts most organizations > into a pickle...they can cheat with using 100BaseT at the edge but if you > really want to do full 802.11n on two radios it's going to necessitate a > midspan, PoE injectors, or a new switch (and that will be at least a year > away). If vendors can make an AP with an 802.11b/g radio and an 802.11n > radio operate within 802.3af power limits that should give organizations > the > breathing room they need to upgrade their edge switching infrastructure > over > the next 3-5 years. > > Frank > > -----Original Message----- > From: Dale W. Carder [mailto:[EMAIL PROTECTED] > Sent: Tuesday, June 26, 2007 3:55 PM > To: [email protected] > Subject: Re: [WIRELESS-LAN] The strategic importance of 5GHz > > On Jun 25, 2007, at 11:57 AM, Enfield, Chuck wrote: > > We currently only have one UTP cable to an AP location. > > > > The alternative is one GigE drop with either local power or > > proprietary UTP based power (including possible pre-standard > > 802.3at). > > One thing we did for the last 3 years is to pull siamese cable to each > AP location, setting up the infrastructure in advance for a technology > change. > > What will probably screw us as you mention is not enough PoE via 802.3af. > Having an AP with bg on 2.4 and MIMO on 5 will probably require 802.3at. > So in addition to replacing your AP's, you are now also forklifting your > PoE switches... > > Dale > > ********** > Participation and subscription information for this EDUCAUSE Constituent > Group discussion list can be found at http://www.educause.edu/groups/. > > ********** > Participation and subscription information for this EDUCAUSE Constituent > Group discussion list can be found at http://www.educause.edu/groups/. > > ______________________________________________________________________ > > This email has been scanned by the MessageLabs Email Security System > on behalf of the London Business School community. > For more information please visit http://www.messagelabs.com/email > ______________________________________________________________________ ______________________________________________________________________ This email has been scanned by the MessageLabs Email Security System on behalf of the London Business School community. For more information please visit http://www.messagelabs.com/email ______________________________________________________________________ ********** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/. ********** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/.
