Epson ELPLP29 - Manual (Page 67)

66
Cable Format
f Serial connection
• Connector type: D-Sub 9 pin(male)
• Projector input port type : RS-232C
<Projector> <Computer>
<Projector> (PC serial cable) <Computer>
Signal name Function
GND Signal line grounding
TD Transmitting data
RD Receiving data
DSR Data set ready
DTR Data terminal ready