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2.5 External I/O Pin
Assignment
Power Switch
Pin #
Power Connector DC-IN 24V
PS/2 Keyboard
Pin #
J3: COM-RS232/422/485
(Change setting by BIOS)
Pi
Signal
n
Name
#
DCD1/422
1
TX-/RS48
TXD1 /
3
422RX+
GND
5
7
RTS1
9
PPC-150T User's Manual
Status
|
ON
O
OFF
Pin #
Signal Name
1
+12~24V
2
GND
3
FG
Signal Name
1
KBCLK
2
PMCLK
3
GND
4
KBDAT
5
PMDAT
6
SB5V
Pi
Signal
n
Name
#
RXD1/422
2
TX+/RS48
5-
5+
DTR1 /
4
422RX-
DSR1
6
8
CTS1
RI1
IUMPPC150T-01 Ver.1.0A Jun, 2014
J4/J5/J7: USB
Pin #
1
2
3
4
5
6
RJ45
Pin
Signal
#
Name
1
FTXD+
FRXIN+
3
5
NC
7
NC
GIGA Ethernet (Optional)
Pin
Signal
#
Name
1
FTXD+
3
FRXIN+
NC
5
7
NC
Audio Line-Out
Pin #
1
2
3
4
5
Signal Name
VCC
USB0-
USB0+
GND
GGND
GGND
Pin
Signal
#
Name
2
FTXD-
4
NC
6
FRXIN-
8
NC
Pin
Signal
#
Name
2
FTXD-
4
NC
6
FRXIN-
8
NC
Signal Name
GND
LOUTL
Open Touch
Open Touch
VREFOUT
18
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