User`s guide

Chapter 1
18
QBO
X
-1010 User’s Manua
l
COM1/COM2
Those two DB-9 male connectors support RS-232/422/485, 5V & 12V selected
by BIOS setting, and output current 1A.
Pin Signal
1
RS-232 ：DCD, Data carrier detect
RS-422 ：TX+
RS-485 ：RTX+
2
RS-232 ：RXD, Receive data
RS-422 ：RX+
RS-485 ：N/A
3
RS-232 ：TXD, Transmit data
RS-422 ：TX-
RS-485 ：RTX-
4
RS-232 ：DTR, Data terminal ready
RS-422 ：RX-
RS-485 ：N/A
5 GND, ground
6 DSR, Data set ready
7 RTS, Request to send
8 CTS, Clear to send
(Male Connector)
9 +5V / +12V / RI, Ring indicator*
[FEN YING SM1001P01012PN]
*The function can be selected by BIOS setting
Digital I/O
The DB-9 female connector supports 4-bits input & 4-bits output, 5V and output
current 1A.
Pin Signal
1 Digital Output 2
2 Digital Input 1
3 Digital Output 1
4 Digital Input 0
5 Digital Output 0
6 +5V
7 Digital Input 3
8 Digital Output 3
9 Digital Input 2
(Female Connector)
Screw GND
[Fixed KGS-02062010]