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IO pin map
Serial communication port
COM1/2/4(DSUB9 MALE)
Pin
1
2
3
4
5
6
7
8
9
Assignment
Carrier detect ( DCD)
Received data (RXD)
Transmitted data (TXD)
Data terminal ready (DTR)
Signal ground (GND)
Data set ready (DSR)
Request to send (RTS)
Clear to send (CTS)
Ring, 5V or 12V
COM3/COM6(RJ45)
Pin
1
2
3
4
5
6
7
8
Assignment
RI / 15V / 12V
DSR
TXD
RXD
RTS
LTS
GND
DTR
6
9
1
5
1
8
1
8
02. Main Board Configuration
Appendix B. System Configuration
e-Manual
SPT-3700
System Introduction
System Installation
System Utilization
System Expansion
Appendix A
BIOS Set up
Appendix B
System Configuration
System Block Diagram
Main Board Configuration
A Deal Drawing
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