MPX-954 User’s Manual
7
1.21 <COM Port>
Connector:
CN_COM1/2
Type:
20-pin (10x2 pitch=1.27x2.54mm) header
Pin
Description
Pin
Description
1 DCD1- 2
RX1-
3
TX1-
4
DTR1-
5 GND 6 DSR1-
7 RTS1- 8 CTS1-
9 RI1 10 NC
11 DCD2- 12
RX2-
13 TX2- 14 DTR2-
15 GND 16 DSR2-
17 RTS2- 18 CTS2-
19 RI2 20 NC
Connector:
CN_COM3/4
Type:
20-pin (10x2 pitch=1.27x2.54mm) header
Pin
Description
Pin
Description
1 DCD3- 2
RX3-
3
TX3-
4
DTR3-
5 GND 6 DSR3-
7 RTS3- 8 CTS3-
9 RI3 10 NC
11 DCD4- 12
RX4-
13 TX4- 14 DTR4-
15 GND 16 DSR4-
17 RTS4- 18 CTS4-
19 RI4 20 NC
