NEC ShieldPRO FC-N21S Ruggedised Notebook Computer
User’s Guide 0318-00002 Ver. 2.0 Dec 2008 – Page 70
5.19.8.
Serial Interface (COM1)
Connector: D-sub 9-pin connector (male)
Pin number
Signal name
Pin alignment
1
DCD
1
· · ·
5
6
· ·
9
2
RXD
3
TXD
4
DTR
5
GND
6
DSR
7
RTS
8
CTS
9
RI
5.19.9.
USB Interface (USB 1/2/3)
Pin number
Signal name
Pin alignment
1
+5V
1 2 3 4
2
D–
3
D+
4
GND
5.19.10. SD Interface
Connector: SD-slot 12-pin connector (female)
Pin number
Signal name
Pin alignment
1
CD/DATA3
8 7
6
5
4
3
2
1
9
2
CMD
3
GND
4
MEDIA_3V
5
CLK
6
GND
7
DATA0
8
DATA1
9
DATA2