AXIOMTEK MIRU130, User Manual

Page: 19 / 73

Machine Vision MIRU130 Board
Board and Pin Assignments 13
2.4.3 COM Wafer Connectors (CN3, CN4, CN7 and CN8)
These are four 9-pin (pitch=1.25mm) COM wafer connectors which are compliant with
Molex 53047-0910. The pin assignments of RS-232/RS-422/RS-485 are listed in table
below. If you need COM1 to support RS-422 or RS-485 communication mode, please
refer to BIOS setting in section 6.4.
Option cable:
59380880250E COM Port Cable DB9 --9x1P L250mm P=1.25
CN3, CN4, and CN7 (for COM2, COM3 and COM4):
CN8 (for COM1):
Pin RS-232
1 DCD
2 DSR
3 RXD
4 RTS
5 TXD
6 CTS
7 DTR
8 RI
9 GND
Pin RS-232 RS-422 RS-485
1 DCD TX- Data-
2 DSR No use No use
3 RXD TX+ Data+
4 RTS No use No use
5 TXD RX+ No use
6 CTS No use No use
7 DTR RX- No use
8 RI No use No use
9 GND No use No use
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