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802.3bt

Posted: Wed Apr 05, 2017 2:18 am
by hrehm
Hello Netonix,

PoE+ (60W) is out on 802.3bf.
(When) Are you going to support it?

Best,
Heiko

Re: 802.3bt

Posted: Wed Apr 05, 2017 7:36 am
by Julian
We already do. This document is a fairly simple abstract of the 802.3bt standard: http://cds.linear.com/docs/en/article/M ... _802.3.pdf

And if you look, the standard for powered device is compatible with our VH port powering scheme, so to answer your question; We have for a couple of years. Any powered device compatible with the standard will only draw 60w peak, which is comfortably within the 75w our design is capable of supplying.

Re: 802.3bt

Posted: Wed Apr 05, 2017 8:40 am
by sirhc
Also Remember our 48 volt POE options are really 50V so....

48V is
.75 Amp @ 50V = 37.5 watts
using 2 pair pins 4,5 as positive and pins 7,8 as negative
which is 802.3af/at MODE B

48VH is
1.5 Amp @ 50V = 75 watts
using 4 pair pins 1,2,4,5 as positive and pins 3,6,7,8 as negative
which is 802.3af/at MODE A and MODE B at the same time