Epson EB-990U - Cable Layouts; Using ESC;VP21 Commands

Using ESC/VP21 Commands
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Cable Layouts
Serial connection
• Connector shape: D-Sub 9-pin (male)
• Projector input port name: RS-232C
• Cable type: Crossover (null modem) cable
In the following illustration, the projector side is shown on the left, and the
computer side on the right:
Signal name Function
GND Signal wire ground
TD Transmit data
RD Receive data
Communications protocol
• Default baud rate setting: 9600 bps
• Data length: 8 bit
• Parity: None
• Stop-bit: 1 bit
• Flow control: None