Protech Systems PPC-7365F User Manual page 22

COM3 : COM3 Connector
The pin assignments are as follows :
PIN
1
2
3
4
5
6
7
8
9
10
COM4 : COM4 Connector
The pin assignments are as follows :
PIN
1
2
3
4
5
6
7
8
9
10
All COM port's pin 9 is selectable for RI, +5V or +12V. For
more information, please refer to our "2-5 COM RI and Voltage
Selection".
PPC-7365F USER
ASSIGNMENT
DCD3
RX3
TX3
DTR3
GND
DSR3
RTS3
CTS3
RI3
NC
ASSIGNMENT
DCD4
RX4
TX4
DTR4
GND
DSR4
RTS4
CTS4
RI4
NC
'
S MANUAL
Chapter 2 Hardware Configuration
Page: 2-7