Commell MS-C73 Manual do Utilizador descarregar pdf (Página 31)

MS-C73 User’s Manual

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2.11 <Serial Port>

The board supports Six RS232 serial port and one jumper selectable RS232/422/485

serial ports. The jumper JCSEL1 & JCSEL2 can let you configure the communicating

modes for COM2.

Connector: COM1/3

Type: 9-pin D-sub male connector on bracket for COM1/3

Pin Description Pin Description

1 DCD 2 RXD

3 TXD 4 DTR

5 GND 6 DSR

7 RTS 8 CTS

9 RI 10 N/C

Connector: COM2

Type: 9-pin D-sub male connector on bracket for COM2

Pin Description Pin Description

1 DCD/422TX-/485- 2 RXD/422TX+/485+

3 TXD/422RX+ 4 DTR/422RX-

5 GND 6 DSR

7 RTS 8 CTS

9 RI 10 N/C

Setting RS-232 & RS-422 & RS-485 for COM2

Connector: CN_COM4/5/6

Type: 9-Pin box header

Pin Description Pin Description

1 DCD 2 RXD

3 TXD 4 DTR

5 GND 6 DSR

7 RTS 8 CTS

9 RI 10 N/C

COM1 COM3

COM2

1

2

9

10

1 2 ... 26 27 28 29 30 31 32 33 34 35 36 ... 54 55

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