Configuring GS116PP to power Echelon EX-5s 60w via PoE

[howell710gmail]

Can a 12v 5a PoE injector/splitter kit be used on the ethernet cable going to the remote exercise bike (non-PoE) to provide power?  Assuming this will work because the bike is not requesting power from the switch.

[howell710gmail · Accepted solution]

Planetechusa.com has a solution. 

POE-171A-60 Single-Port Multi-Gigabit 802.3bt PoE++ Injector (60 Watts)

POE-172S Single-Port 10/100/1000Mbps Ultra PoE Splitter (12V/19V/24V)

No concern about power loss during transmission. The GS116PP will see the injector as a non-PoE device and not provide any power on the connected port. The splitter will provide the 12v 5a that I need.

[plemans]

No. even if you could rig something to work, that switch can only supply 30 watts per port per its spec sheet. 

so not only would you be risking the switch but the bike as well. 

Better to just power the bike appropriately and not risk the switch and the bike with trying to rig something up to work

[schumaku]

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@howell710gmail wrote:

Can a 12v 5a PoE injector/splitter kit ....

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Technically not feasible, voltage must be higher so the cable loss (ohm'sches law) for the power transmission. There are reasons why the 802.11af and 802.11bt (for up to 90W) standard compliant systems use higher voltages, too. Of course, voltages could be multiplied, this won't be cost efficient then (highe voltage for the transmission, and lower voltage the the powered device). And no, this12v/5 idea has nothing to do with an kind of standards compliant PoE

[howell710gmail · Accepted solution]

Planetechusa.com has a solution. 

POE-171A-60 Single-Port Multi-Gigabit 802.3bt PoE++ Injector (60 Watts)

POE-172S Single-Port 10/100/1000Mbps Ultra PoE Splitter (12V/19V/24V)

No concern about power loss during transmission. The GS116PP will see the injector as a non-PoE device and not provide any power on the connected port. The splitter will provide the 12v 5a that I need.

[schumaku]

Planet has always special purpose hardware for affordable prices. Yes, as long this is all done on industry standards 802.3at/at/bt it's fine.