PICO50R/PICO51R Pico-ITX Board
24
Board and Pin Assignments
2.5.15
COM Wafer Connectors (SCN3 and SCN4)
This is a 9-pin (pitch=1.25mm) connector which is compliant with Molex 53047-0910.
The SCN3 and SCN4 are for COM2 and COM1 interfaces, respectively. Both COM1 and
COM2 support RS-232/422/485, for further information please refer to BIOS setting in
section 4.4. The pin assignments of RS-232/422/485 are listed in table below. It is
strongly recommended to connect with the matching cable, 59380880250E.
COM1:
COM2:
2.5.16
Power Output Connector (SCN5)
This is a 2-pin (pitch=2.0mm) wafer connector for 5V/2A DC power output.
Pin
RS-232
RS-422
RS-485
1
GND
No use
No use
2
RI1
No use
No use
3
DTR 1
No use
No use
4
CTS 1
No use
No use
5
TXD1
No use
No use
6
RTS 1
RX1-
No use
7
RXD 1
RX1+
No use
8
DSR 1
TX1+
Data-
9
DCD 1
TX1-
Data+
Pin
RS-232
RS-422
RS-485
1
GND
No use
No use
2
RI2
No use
No use
3
DTR 2
No use
No use
4
CTS 2
No use
No use
5
TXD2
No use
No use
6
RTS 2
RX2-
No use
7
RXD 2
RX2+
No use
8
DSR 2
TX2+
Data-
9
DCD 2
TX2-
Data+
Pin
Signal
1
+V5S
2
GND
1
1
Summary of Contents for PICO50R
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