3 ms·
Minor correction: 802.3bt added 51W (Type 3) or 71W (Type 4). 60W isn't a standard power level. Some switches support up to 95W per port with PoH.
by bitbckt 3y ago
Minor correction: 802.3bt added 51W (Type 3) or 71W (Type 4). 60W isn't a standard power level. Some switches support up to 95W per port with PoH.
- OJFord 3y agoSurely they're all 'up to'? It's not 'you must sink this much current or else not compliant'? It seems like a weird thing for TFA to say anyway - my PoE[+] switch was the cheapest 8 port I could get a few years ago on Amazon, and does 30W per port. I don't really understand how you could look into it at all, be willing to attempt the hack, but not use a switch (or injector or whatever) that's capable of powering it under load.
- bitbckt 3y agoHah, yes they are all 'up to' on the device side. A switch port or injector is not compliant with a particular standard if it does not provide for the type-specific load, however.
- jtriangle 3y agoDepends. Within the standard, you can do 51w at the full 100m on standard cat6, which is 300ma/pair. If your runs are shorter, you should be good to go at the full type4 current, or, 960ma. This is a good reference for this: https://www.5gtechnologyworld.com/what-every-engineer-should-know-about-ieee-802-3bt-poe/ https://www.5gtechnologyworld.com/what-every-engineer-should... which goes into how to calc your total bundle dissipation and whatnot.
- donw 3y ago“By ‘Energy Star’ compliant, we mean that it burns as much energy as the sun.”
- dev_tty01 3y agoThey said it "can support 60W." As you point out, Type 4 can support up to 71W, so yes it can support 60W. They didn't assert that it is a standard power level.