Filter
Top Products
PowerDsine Presentation October 2005 Page 20
www.PowerDsine.com
How to solve the conflict – PSE side
Effects on PSE specifications
– PoEp PSE minimum voltage is 51V.
– However PSE's that have a 44V minimum output and are 802.3at-
complaint in any other aspect, are anyway able to power 802.3at-
complaint PD's with classes of Part (a)
. (Hence all OK so far..)
– Supplies power only if capable of (Like we do today in
IEEE802.3af)
– 802.3af PSE classification including class 4
should be mandatory
(In order to PSE to know if to power or not)
To differentiate between 802.3af PD and PoEp PD.
– 802.3at PSE extended classification is optional.
Like classification is currently optional in 802.3af