Epson PowerLite 5000 Service Manual page 49

The ELP communication kit 2 option also enables the remote control to draw lines and
patterns on the screen.
The relay circuit (IC111 or IC116C) is switched to be able to accept the mouse encoder
signal and the button signal. Then the signals based on " Tracking +/- button" operation are
output to a host computer through the remote. The signals are transferred through the host
computer ' s interface, and you can control (remote mouse controlling) the host computer
without its mouse.
FR Board Circuit Block
Mouse/COM
Controller
CN101
Connects to
Main Board CN802
COM1/COM2
Level Converter
Serial to parallel
MDA0~7
(For Mouse1)
Switching
(Mouse/COM1)
MDA
Serial to Parallel
0~7
(For Mouse2)
Switching
(Mouse/COM2)
Figure 2-16
2-19
EPSON PowerLite 5000 Service Manual
LEFT/RIGHT/CLOCK
TXD/RXD/DTR/DSR
YA/TXD
SEL
Level
SEL
Converter
TXD/RXD/DTR/DSR
YA/TXD
Mouse/COM1
(CN100)
13-PIN
13-PIN
Mouse/COM2
(CN102)