Quanmax QBOX-1010 User Manual page 18

COM1/COM2
Those two DB-9 male connectors support RS-232/422/485, 5V & 12V selected
by BIOS setting, and output current 1A.
Digital I/O
The DB-9 female connector supports 4-bits input & 4-bits output, 5V and output
current 1A.
(Female Connector)
QBOX-1010 User's Manual
Pin
1 DCD, Data carrier detect
2 RXD, Receive data
3 TXD, Transmit data
4 DTR, Data terminal ready
5 GND, ground
6 DSR, Data set ready
7 RTS, Request to send
8 CTS, Clear to send
+5V / +12V / RI, Ring
9
[FEN YING SM1001P01012PN]
*The function can be selected by BIOS setting
[FEN YING DSM1001S01011PN]
RS232
indicator*
Pin Signal
1 Digital Output 0
2 Digital Input 0
3 Digital Output 1
4 Digital Input 1
5 Digital Output 2
6 Digital Input 2
7 Digital Output 3
8 Digital Input 3
9 +5V
Screw GND
18
Chapter 1
RS485
RS422
Half Duplex
TX- DATA-
RX+ N/A
TX+ DATA+
RX- N/A
GND GND
N/A N/A
N/A N/A
N/A N/A
N/A N/A