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Io XT Installation and Operation Guide — Machine Control
Machine Control
RS-422, Sony 9-pin protocol. 9-pin D-connector pinout is as follows:
1 ............ GND
2 ............ RX-
3 ............ TX+
4 ............ GND
5 ............ No Connection
6 ............ GND
7 ............ RX+
8 ............ TX-
9 ............ GND
Shell ...... GND