Figure 7 Com Ports - Quanmax QDSP-5001 Series User Manual


COM ports
COM ports with the pin definitions.
QDSP-5001 Series User's Manual

Figure 7 COM Ports

COM1 RS-232 / 422 / 485 Port DB-9
Pin RS-232
1 DCD
2 RXD
3 TXD
4 DTR
5 GND
6 DSR
7 RTS
8 CTS
9 RI / +5V*
:Pin-9 can be set for +5V output in BIOS setup.
*
COM2 RS-232 / 422 / 485 Port DB-9
Pin RS-232
1 DCD
2 RXD
3 TXD
4 DTR
5 GND
6 DSR
7 RTS
8 CTS
9 RI / +5V*
:Pin-9 can be set for +5V output in BIOS setup.
*
COM 1
RS-422 Half Duplex RS-485
TX
RX+
TX+
RX
GND
NA
NA
NA
NA / +5V* NA / +5V*
RS-422 Half Duplex RS-485
TX
RX+
TX+
RX
GND
NA
NA
NA
NA / +5V* NA / +5V*
22
Chapter 2
COM 2
Full Duplex RS-485
DATA TX
NA RX+
DATA+ TX+
NA RX
GND GND
NA NA
NA NA
NA NA
NA / +5V*
Full Duplex RS-485
DATA TX
NA RX+
DATA+ TX+
NA RX
GND GND
NA NA
NA NA
NA NA
NA / +5V*