Networking giant Cisco Systems has cranked up the amount of juice its Catalyst 4500E switches can pump out over Ethernet to 60 watts – another step toward its goal of making its switches the throbbing heart of the modern office. The Catalyst 4500E switch was announced last October with 848Gb/sec of aggregate switching bandwidth …
Oh dear I wonder what the heating effect would be of driving 7KW through 120 narrow conductor UTP cables all bundled together in a cable tray?
Not an issue
Even if all the power was delivered over a single pair that gives a total conductor cross section of 24.6mm^2 for 120 cables. 32A mains wiring gives 7.36kW @ 230V and needs only 4mm^2 cable. Even with the lower voltage and hence higher current (PoE is not _that_ low voltage to begin with) there is plenty of slack in there.
Need more power.....
....so i can run my verboten 100 watt incandescent light bubs!!
How long until someone starts delivering power via tesla coils so we can get PoW (Power over Wifi)
me, I think it's simpler/better to use a wall wart to power those dumb terminals.
We believe we cajoled everyone into FCoE, let's see if we can pull this one off.
I have a friend that tests these sorts of thing for a living. He showed me an earlier version of the switch. Each port really can deliver the watts. Loading all of the ports ends up with a rather hot switch (it was a small one he showed me -- only 2Kw.
This is an example of "just because you can do something doesn't mean its necessarily a good idea"!
Coffee anyone ...
Wow! Now I can have a laptop that can make coffeee as well! Can see that - coming to your favourite appstore - the Barrista app - make coffee using the power of the Net!
Hmm.... powering desktops...
Well does that mean that switch will get a hefty Über-UPS (or ÜPS) or will the network shut down at a power outage?
However with good planning this might be an interesting idea.
a true tool for a BOFH
Especially with the premanufactured PoE splitter, but instead of jacking it into the server, jack it into the chair, or perhaps, the wrist-rest...
...taking jacking off to new heights...
It means fart in Afrikaans.
Gonna have a lot of fun here in SA with that acronym
PoEP in Dutch
Poep in Afrikaans might not be nice. Two guesses what it means in Dutch...
Someone please send cisco this link!
Beautiful - the three posts above just made my day
Time to off to the bar for a beer...
Mine's the one with the air freshner.
- Game Theory The agony and ecstasy of SteamOS: WHERE ARE MY GAMES?
- Intel's Raspberry Pi rival Galileo can now run Windows
- Hello, police, El Reg here. Are we a bunch of terrorists now?
- Microsoft and HTC are M8s again: New One mobe sports WinPhone
- Worstall on Wednesday Wall Street woes: Oh noes, tech titans aren't using bankers