Eiki EIP-WSS3100 Owner's Manual page 62

RS232 Control
Communication Protocol
Items
Standard Baud rate
Data length
Parity
Stop bit
Flow Control
RS232 Cable Define
PC Side Projector side with D-Sub Pin
RX 2
TX 3
GND 5
Specification
19200 bps
8 bits
None
1 bit
None
2 RX
3 TX
5 GND
... English
61