Epson EMP-7950 - Manual (Page 158)

157 List of ESC/VP21 Commands
User’s Guide
Cable Layouts
* The [USB Type A] port (EMP-7950 only) cannot be used as a USB hub.
Serial connection
•••• Connector shape : D-Sub 9-pin (male)
•••• Projector input
connector : Control (RS-232C)
<At computer>
<At projector> (PC serial cable) <At computer> Signal Function
GND 5 5 GND GND Signal wire earth
RD 2 3 TD TD Transmit data
TD 3 2 RD RD Receive data
DTR 4 6 DSR DSR Data set ready
DSR 6 4 DTR DTR Data terminal ready
<At projector>
USB connection
•••• Connector shape : USB(type B)
<At projector> <At computer>
(type B)