Chapter 2 Hardware Configuration
Page: 2-6
PS3100 SERIES USER
’S MANUAL
2-4. COM PORT CONNECTOR
There are four COM ports enhanced in this board namely: COM1,
COM2, COM3 and COM4.
COM1 : COM1 Connector
The COM1 Connector assignments are as follows :
PIN ASSIGNMENT
1 DCD1
2 RXD1
3 TXD1
4 DTR1
5 GND
6 DSR1
7 RTS1
8 CTS1
9 RI / +5V / +12V selectable
COM1 and COM1_1 can't be used simultaneously.
COM3 : COM3 Connector
The pin assignments are as follows :
PIN ASSIGNMENT
1 DCD3
2 RXD3
3 TXD3
4 DTR3
5 GND
6 DSR3
7 RTS3
8 CTS3
9
RI/+5V/+12 selectable
10 NC
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