21 connector, Type, Connector – COMMELL MPX-954 User Manual

Page 7

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MPX-954 User’s Manual

7

1.21

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