G
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Archived from groups: comp.dcom.lans.ethernet (More info?)
I'm reading about PoE and I wonder why there are 2 alternatives (A and
B) to implement a PSE. Which are the benefits and drawbacks of each of
them?
I am designing an end-span Ethernet switch with PoE (PSE) and I don't
know which alternative is better. The IEEE 802.3af allows a PSE to use
either of the two alternatives, but not working simultaneously. So,
products the like in the market, which alternative do they implement?
It is cheaper to implement arternative B because you don't need a
special transformer. So, what's the point in using alternative A?
Regards,
Chesi
I'm reading about PoE and I wonder why there are 2 alternatives (A and
B) to implement a PSE. Which are the benefits and drawbacks of each of
them?
I am designing an end-span Ethernet switch with PoE (PSE) and I don't
know which alternative is better. The IEEE 802.3af allows a PSE to use
either of the two alternatives, but not working simultaneously. So,
products the like in the market, which alternative do they implement?
It is cheaper to implement arternative B because you don't need a
special transformer. So, what's the point in using alternative A?
Regards,
Chesi