You could use chuck's GIGE-POE devices on every line to pull the DC off
the Ethernet line, then just run it into something to condition the
power so you don't overvoltage anything. Then just power the switch via
DC. If any 1 Ethernet line would have DC On it, then you could power
the switch.
On 12/22/2015 3:42 PM, Mathew Howard wrote:
I used to modify cheap switches to do passive PoE, which would work
that way... I just had pins 4/5 & 7/8 on all the ports hard wired to
the DC jack, so essentially all the ports were PoE in and out. It's
pretty simple on 10/100 stuff... of course gigabit would make it a lot
more complicated.
But I've never seen anything built to do that.
On Tue, Dec 22, 2015 at 3:27 PM, Adam Moffett <[email protected]
<mailto:[email protected]>> wrote:
Understood. I want PoE IN on all/any port.
On 12/22/2015 4:18 PM, Josh Reynolds wrote:
Ubiquiti, Mikrotik, and Netonix have several designs for routing
and switching that can be powered over POE in and sent 1 or more
ports of POE out.
On Dec 22, 2015 3:16 PM, "Adam Moffett" <[email protected]
<mailto:[email protected]>> wrote:
I was thinking about Dish Network MDU setups. The switch
they use gets power from the set top boxes via the coax
cables. As long as any one of the set top boxes in the
building is turned on, then the switch has power.
I was curious if there's an ethernet switch with a similar
capability. I've got a place where I'd like to put a managed
switch, but it would be easier and cheaper to supply a few
PoE injectors than to install an outlet.
Anybody heard of such a beast, or am I hunting the white whale?
