I'm in need of a gigabit switch that can be powered via PoE, rather than AC power. There isn't any AC power in the area where it needs to be installed. Is this possible?
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1You're going to have to run either AC or DC power to the area. How many ports are we talking?– David SchwartzMay 17, 2012 at 0:25
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You mean the switch, itself, needs power, and not just the ports coming from the switch?– Joel CoelMay 17, 2012 at 1:03
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4Normally, this would be deemed a shopping question. However, I think that this is a special application and there are very few products that can do this. I thought I'd share my experience since it could be helpful for future visitors.– ewwhiteMay 17, 2012 at 1:28
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1Shopping Questions are Off-Topic on any of the Stack Exchange sites because of their very limited lifespan. See Q and A is hard, lets go Shopping and the FAQ for more details.– Mark HendersonMay 17, 2012 at 1:33
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1** "is there a product that centrally stores all microsoft office documents in a database like structure for easy searching?", would that be a shopping question? ** Well, um, yes. What you're apparently saying is that a shopping question isn't a shopping question if what you're shopping for is difficult to find, and with respect, that's nonsense.– Rob MoirMay 17, 2012 at 11:59
2 Answers
The HP ProCurve 1810-8G Switch (J9449A) is an 8-port Gigabit switch that can be powered by an upstream PoE switch. I use it in environments where I can't accommodate a power brick or need to control power from a central location (e.g. a UPS in a central server room). They're also nice when you need to use small switches because of a lack of ethernet drops in a facility.
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1Wow, I have never seen a switch that ran off PoE. Those might be useful to put on our mobile lab carts. May 17, 2012 at 7:31
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Ditto @Zoredache - this is the kind of thing I'd have almost ruled out directly. Interesting to know– DanMay 17, 2012 at 12:04
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Does it forward the PoE current? This one is not Gbit but is able to do that, but I'm interested in Gbit, too. veracityglobal.com/products/ethernet-and-poe-devices/…– mguttJan 25, 2016 at 21:29
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I doubt you will find such a product. Instead, I would look for a generic PoE injector/extractor.
I think this is one of those products, but I can't get the website to load.
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I think OP wants to power the switch itself via POE. A midspan or injector still needs AC running to it.– jscottMay 17, 2012 at 0:20
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1That is not what I was suggesting. They make devices that sit at the end of the span and split Ethernet from the PoE.– longneckMay 17, 2012 at 0:34
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We use these for some impromptu wireless "access points" in an area that are really just specially configured consumer wifi routers, set up in area that needed simple wifi coverage very cheaply. Hopefully the so-called APs will start breaking soon so I can replace them with real equipment. May 17, 2012 at 1:06
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then this product is perfect. that's exactly what it's designed for: powering consumer-grade networking devices that need 12 or 5 volts.– longneckMay 17, 2012 at 1:13