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Title:
Steve,
1. I like your slide 5. With the switch in the midspan, the midspan can
actually enable the endspan if the midspan has run out of power budget.
Can the resistor be higher such that it interferes with the "signature"
detection phase and thus the endspan would never really win because the
signature is out of spec? The midspan can detect faster and avoid the
delay in order to interfere with the detection for the endspan. Once PD
is powered, the midspan could release the switch and conserve power on
the endspan's behalf.
2. Slide 8. I thought the objective 7 was not to draw JUST enough to
light an LED, but to operate at a lower power while providing the
indication in some form.
Derek Koonce
Steve Robbins wrote:
Guys,
I think I’ve solved
another problem that’s inherent
with DS. See the attached pdf. (Only about 10 more tough problems to
go!)