35
UNO-3000G Series User Manual
Appendix A
S
ystem
Settings
and
Pin
A
ssignments
A.3
RS-232 Standard Serial Port
Table A.2: Connectors and Jumpers (Main Board)
Label
Function
CN11, CN12
SATA Signal Connector
CN15, CN16
SATA Power Connector
CN23, CN29
Mini PCIe Socket
CF1, CF2
CFast Card Socket
CN28
PS/2 Keyboard and Mouse Connector
CN10, CN24
SIM Card Socket
CN26
LPC Debug Pin Header
BH2
Battery for RTC
CN21
COM3
CN22
COM4
CN19
LPT
CN17, CN18
PCIe Slot for Backplane
BH1
Reserved Battery Pin Header
JP2
Clear CMOS
JP3
AT/ATX Selection
Table A.3: Connectors and Jumpers (Power Board)
Label
Function
CN2
Power Button Connector
CN3
Reset Button Connector
CN4
Relay Output
Table A.4: RS-232 Serial Port Pin Assignments
Pin
Pin Name
1
DCD
2
RxD
3
TxD
4
DTR
5
GND
6
DSR
7
RTS
8
CTS
9
RI
1
5
9
6
3
2
4
7 8
