Quanmax QDSP-5000 Guía de usuario descargar pdf (Pagina 22)

Chapter 2

QDSP-5000 User’s Manual

22

 COM ports

COM ports with the pin definitions.

Figure 7 COM Ports

COM1 RS-232 / 422 / 485 Port DB-9

Pin

RS-232

RS-422

Half Duplex RS-485

Full Duplex RS-485

1 DCD TX DATA TX

2 RXD RX+ NA RX+

3 TXD TX+ DATA+ TX+

4 DTR RX NA RX

5 GND GND GND GND

6 DSR NA NA NA

7 RTS NA NA NA

8 CTS NA NA NA

9 RI / +5V* NA / +5V* NA / +5V* NA / +5V*

*:Pin-9 can be set for +5V output in BIOS setup.

COM2 RS-232 / 422 / 485 Port DB-9

Pin

RS-232

RS-422

Half Duplex RS-485

Full Duplex RS-485

1 DCD TX DATA TX

2 RXD RX+ NA RX+

3 TXD TX+ DATA+ TX+

4 DTR RX NA RX

5 GND GND GND GND

6 DSR NA NA NA

7 RTS NA NA NA

8 CTS NA NA NA

9 RI / +5V* NA / +5V* NA / +5V* NA / +5V*

*

:Pin-9 can be set for +5V output in BIOS setup.

COM 1

COM 2

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