Com Port Connector - Protech Systems PPC-7365F User Manual

Chapter 2 Hardware Configuration

2-4. COM PORT CONNECTOR

There are four COM ports enhanced in this board namely: COM1,
COM2, COM3 and COM4. COM1, COM3 and COM4 are fixed for
RS-232, while COM2 is selectable for RS-232/422/485.
COM1 : COM1 Connector
The COM1 Connector assignments are as follows :
PIN
1
2
3
4
5
6
7
8
9
COM2 : COM2 Connector
The COM2 Connector assignments are as follows :
PIN
1 DCD2
2 RX2
3 TX2
4 DTR2
5 GND
6 DSR2
7 RTS2
8 CTS2
RI2
9
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ASSIGNMENT
DCD1
RX1
TX1
DTR1
GND
DSR1
RTS1
CTS1
RI1
ASSIGNMENT
RS-232 RS-422 RS-485
TX- TX-
TX+ TX+
RX+ RX+
RX- RX-
GND GND
RTS- NC
RTS+ NC
CTS+ NC
CTS- NC
PPC-7365F USER
COM1
COM2
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S MANUAL