Every time I bring up switching to 48v (though 802.3xx would be better), I get all kinds of hate from people that did 12v or 24v plants... because nothing in IT ever changes.
Honestly, the days of PoE are numbered anyway. Fiber + DC is where they should be moving to instead of different PoE standards. If you're going to change, change once and change it to the right damn place. ----- Mike Hammett Intelligent Computing Solutions http://www.ics-il.com Midwest Internet Exchange http://www.midwest-ix.com ----- Original Message ----- From: "Forrest Christian (List Account)" <[email protected]> To: "af" <[email protected]> Sent: Thursday, July 23, 2015 1:14:37 AM Subject: Re: [AFMUG] DC POE Switches There are lots of gigabit poe switches on the market. But, they're almost all 802.3af and its variants. The netonix does more wisp-friendly injection, but doesn't handle everything. Admittedly the midspans tend to be a bit of a mess, but there are a lot of less-messy ways to get a midspan in place. A syncinjector reduces the wiring load by 1/4 (one fuse per 4 radios). The 12 port version will reduce this further and will be jumper configurable for a lot more different radios - if I can ever get the @()#$* thing shipping. Personally, I'm more puzzled by the fact that the radio industry hasn't just switched to 802.3af or 802.3at for PoE. If you look at the root cause of the PoE mess, it's more a symptom of the mismatched poe injection methods. 802.3af came out in 2003 and provides 15.4W per port. 802.3at came out in 2009, which provides 25.5W of power, and there's a "semi-standard non-standard" way of getting 51W using all 4 pairs of the cable. -forrest On Wed, Jul 22, 2015 at 10:06 PM, TJ Trout < [email protected] > wrote: Is there really no gigabit poe switches on the market available now? I just really don't understand why there aren't a bunch of types of these on the market already! I posed the question to Forrest at afmug and he stated that no one wants to be locked into a specific switch, really guys? Using a midspan injector that requires power cabling to each port, fusing, and a rats nest of ethernet cables seems so 2006, do you guys really see it that way? Yes I know about netonix, but how are they the first to market, it's 2015!??? -- Forrest Christian CEO , PacketFlux Technologies, Inc. Tel: 406-449-3345 | Address: 3577 Countryside Road, Helena, MT 59602 [email protected] | http://www.packetflux.com
