Epson EB-696Ui User Manual page 36

Projector Connections
a Connect one end of the cable to the SYNC IN port on one projector,
and connect the other end to the SYNC OUT port on the other
projector.
If you are connecting three or more projectors, connect the
a
projectors in a chain as shown.
b Press the [Menu] button on the control panel or remote control.
c Select the Extended menu and press [Enter].
d Select the Easy Interactive Function setting and press [Enter].
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