Seiko Group POWERLITE 7500 UB - Manual (Page 21)

Setting Up the Projector
21
Making Other Connections
Connect the power cable and other cables described below, depending on how you plan to
use the projector.
■ Plug the power cable into the projector and a grounded electrical outlet.
■ The Trigger out port outputs a 12-volt DC signal
when the projector is turned on. This lets a central
control system monitor whether the projector is on
or off, and can be used to raise or lower your
projection screen automatically when the projector
is in use.
Connect a 3.5-mm mini jack to the port, as shown.
To enable the port, turn on the
Trigger Out
setting (see page 47).
■ To use an AV controller with the projector, connect a 9-pin null modem serial cable to
the
RS-232C port. Refer to the table of ESC/VP21 command codes on page 69.