Canon REALiS 4K501ST Pro AV 5000-Lumen LCoS Projector - Manual (Page 184)

Product Specifications
184
■ Service Port (CONTROL)
Pin assignment
Communication format
Communication mode : RS-232C, asynchronous, half-duplex communication
Communication speed : 19200bps
Character length
: 8 bits
Stop bits : 1/2 bits
Parity : None
Flow control : None
Pin No. Signal
1 OPEN
2 RxD
3 TxD
4 OPEN
5 GND
6 OPEN
7 Internal pull-up
8 OPEN
9 OPEN