Rainbow Electronics MAX5965B - Manual (Page 19)

MAX5965A/MAX5965B
High-Power, Quad, Monolithic, PSE Controllers
for Power over Ethernet
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Figure 1a. Detection, Classification, and Power-Up Port Sequence
OUT_
-4V
-9V
-18V
-48V
t
t DETI t DETII t CLASS
150ms 150ms 21.3ms
0V
0V
80ms
Figure 1b. Detection, 2-Event Classification, and Power-Up Port Sequence
150ms 150ms 21.3ms
t CLASSI
t DETI t DETII
t CLASSII
8ms 8ms
t CLASSIII
21.3ms 21.3ms 80ms
0
t
0V
-4V
-9V
OUT_
-18V
-48V