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angboontiong
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Strange POE information.

Tue Jan 22, 2019 5:15 am

poe.png
Hi,
if refer to the 802.3at, it should can provide up to 30Watt for the port.
But, refer to the technical spec for https://mikrotik.com/product/RB960PGS.

Max out per port output (input > 30 V) 450 mA, meanings this is only if ,
1) 48 VDC x 450mA = 21.6 Watt.
2) 48 VDC x 450mA = 22.5 Watt.

so, it cannot support 802.3at as min is 25.50 W for this standard.

Please correct me if i am wrong.

thanks.

vincent.
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Last edited by angboontiong on Wed Jan 23, 2019 7:06 pm, edited 1 time in total.
 
mkx
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Re: Strange POE information.

Tue Jan 22, 2019 9:24 am

so, it cannot support 802.3at as min is 25.50 W for this standard.

There's 802.3at Type 1 with maximum current of 350mA and there's 802.3at Type 2 "PoE+" with maximum current of 600mA. PSE conforming to the former is supposed to provide up to 15.40W (that's at 44V).

My source of information might disagree with yours though.
BR,
Metod

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