S i 3 4 6 0 - E V B
2
Rev. 1.2
Not Recom
m
en
ded
for N
ew D
esigns.
Please Co
ns
id
er Si3462 for
N
ew
D
esigns.
Figure 1. Power Carried Over the Spare Pair (10/100BASE-T Applications Only)
Note:
This is the connection scheme implemented on the Si3460-EVB reference design.
Figure 2. Power Carried Over the Signal (Data) Pair
POWER SOURCING
EQUIPMENT (PSE)
POWERED DEVICE
(PD)
48 V
+
_
TX
RX
4
5
1
2
3
6
7
8
SPARE PAIR
SIGNAL PAIR
SIGNAL PAIR
SPARE PAIR
4
5
1
2
3
6
7
8
RX
TX
PD I/F
and
DC-DC
Converter
POWER SOURCING
EQUIPMENT (PSE)
POWERED DEVICE
(PD)
48 V
±
±
TX
RX
4
5
1
2
3
6
7
8
SPARE PAIR
SIGNAL PAIR
SIGNAL PAIR
SPARE PAIR
4
5
1
2
3
6
7
8
RX
TX
DC-DC
Converter
and
PD I/F
