[8023-POEP] 802.3af Isolation 33.4.1
I would like to know
the reasoning for the change to the Isolation requirements in paragraph
33.4.1.
Previously, 2250VDC
was an acceptable test option. That option is no longer shown in the
802.3af specification.
The MDI interface
will typically have a capacitive path to frame ground to attenuate common mode
noise. This capacitance will conduct AC current up to as much as 30mA
during the electrical strength test.
Could someone please
explain the reasoning for not allowing the 2250VDC electrical strength
test?
Thanks
Bob
Lappin
Tyco
Electronics