+48V Quad Hot-Swap Controllers For
Power-Over-LAN
18   ______________________________________________________________________________________
N
PD
CAT 5
RJ45
POWERED
DEVICE
(IP PHONE, ETC.)
DATA
RJ45
+48V POWER OVER
SIGNAL PAIRS
LAN SWITCH
+48V
+48V
OUT
MAX5913A
MAX5914A
Figure 9. Power Sent Over Signal Pairs
N
PD
CAT 5
CAT 5
RJ45
POWERED
DEVICE
(IP PHONE, ETC.)
RJ45
RJ45
RJ45
+48V POWER OVER
SPARE PAIRS
MIDSPAN HUB
+48V
+48V
OUT
MAX5913A
MAX5914A
Figure 10. Power Sent Over Spare Pairs
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