Power over Ethernet Systems

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superavi

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Jan 9, 2014
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I'm a manufacturer of Power over Ethernet computers/ thin clients. I'm curious to find out what the forum thinks of these devices?

We have the AMD G-Series SoC with 4GB RAM and 16GB Flash as standard, mated to an all-in-one 19/22 inch screen and available as PoE+ - these consume less than 25.5 W. Would there be interest in these systems?

Disclaimer - I work for thinlabs - the company that manufactures them.
 
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Someone Somewhere

Someone Somewhere

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Sep 23, 2012
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Looks interesting. I will note one thing though: Your website says
Power over Ethernet (PoE) can help organizations significantly increase the performance of one’s thin client network, while considerably reducing power and data costs...
Click to expand...
I don't much agree with that; PoE won't do much for performance, though it might reduce costs for power cabling. However, in most buildings, ethernet jacks are basically always next to power points. Only thing it really reduces is untidiness and set-up work. You need more complicated network hubs too, unless you're using pricey integrated switches.

I doubt there'd be much demand here, but enthusiasts wouldn't be your target audience.

Also, please get rid of the damned ken burns effect on your homepage.
 
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superavi

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Jan 9, 2014
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Someone somewhere - our main idea behind this is to reduce costs with respect to power cabling - applicable in say a new build environment rather than a replacement marketplace.

Also with mid-spans, you could convert any switch into a PoE+ switch - though that comes at a cost as well.
Thank you for your input.

(Will pass the message on the Ken Burns bit to the guys! - cheers!)
 
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Someone Somewhere

Someone Somewhere

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Sep 23, 2012
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Mid-spans generally prevent Gigabit, and add to mess in your comms cupboard.

Even in new builds, I'd be worried about future proofing if people weren't reticulating power everywhere.

I'd hope that the devices also had at least a socket for a DC input. Many IP phones allow you to use either PoE or an adapter, and IMO that's a good way to have it.
 
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superavi

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Jan 9, 2014
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I hadnt heard of this - considering that the pair of wires delivering power is different - would that still prevent Gigabit? Our tests havent shown any problems.

And yes - the devices have the dc slot as standard.
 
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Someone Somewhere

Someone Somewhere

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Sep 23, 2012
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100Mb and slower only needs two pairs. Gigabit and above uses all four.

While well built switches (and possibly some mid-span injectors) use transformers to inject power common-mode without disturbing the differential signalling, most cheap ones just parallel up each of the two pairs and force the device down to fast ethernet. Some poorly-programmed devices simply don't work if the negotiation says they should be able to do gigabit but two pairs don't work.
 
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