Optoma EX400 - Manual (Page 74)

74
English
Appendices
RS232 Pin Assignments
RS232 Commands and Protocol
Function List
 RS232 shell is
grounded.
Pin no.
Spec.
(from projector side)
1 N/A
2 RXD
3 TXD
4 N/A
5 GND
6 N/A
7 N/A
8 N/A
9 N/A
1 2 3 4 5
6 7 8 9