Epson 800p - Manual (Page 96)

90 Appendix A: Connecting to Additional Equipment
Connecting the Mouse Cable
To use the remote control as a mouse follow the steps below. If the
Macintosh has a USB port, you can use the USB mouse cable
included with the projector. If it has a round mouse port, you’ll need a
Macintosh mouse cable; see your projector dealer for help in obtaining
the correct cable.
The USB cable also provides audio suport. If your Macintosh supports
USB and your presentation includes sound, you can play it through
the projector’s speakers by connecting the USB cable.
1. Connect the square end of the USB cable to the projector’s USB
port.
2. Disconnect your Macintosh’s mouse cable. Connect the other end
of the projector’s mouse cable to a USB port on your Macintosh.
USB port
USB cable