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No POE+ Function Support

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Posted at 6/3/2019 12:01:26     
Last edited by YLCHEN In 6/3/2019 12:03 Editor

Hi,

We tested ROC-RK3399-PC POE expansion board. According to its SPEC, it can support POE+ (802.3 AT, output power 30W). But we only saw 15.4W in our test.

Does anyone have the same problem and know the cause?
Thanks very much.
POE2.png
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Posted at 6/5/2019 17:42:41     
I wonder what powers your ROC-RK3399-PC board?
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Posted at 6/6/2019 11:47:28     
Thanks for asking. The PoE Gigabit Switch we're using is VigorSwitch P2261. Here's the link for your reference:
https://www.draytek.co.uk/products/legacy/vigorswitch-p2261
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Posted at 6/17/2019 15:00:18     
Any update on this?
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Posted at 6/18/2019 14:11:23     
Hi, YLCHEN. IMO, the board is served as power consumed device, requesting 15.4W.
Anything wrong about this?
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Posted at 6/25/2019 13:34:21     
penguin Posted at 6/18/2019 14:11
Hi, YLCHEN. IMO, the board is served as power consumed device, requesting 15.4W.
Anything wrong abo ...

Thanks for the reply.
We think the POE expansion board supports POE+ (30W) so the "Power Requested" and "Power Allocated" showed on POE Gigabit Switch should be 30W, instead of 15.4W.
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