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2-11System 7SC • Installation
PROJ CONTROL
ABCDE
Tx
To / from
projector
FGHI J
A
B
C
D
E
F
G
H
I
*
*
*
*
*
*
Ground (Gnd, )
*
Transmit (Tx)
NOTE Each projector/display may require different
wiring. For wiring details, see the UC cable
wiring and pin assignments illustration, and
refer to the manual that came with the
projector.
We recommend using the UC 50’ universal projector control cable (included
with the System 7SC) for this connection. One end of the cable is terminated
with a female 9-pin D connector, and the other end is unterminated. The
UC 50’ pin assignments are as shown in the following illustration. Refer to
the projector’s manual for the projector’s pin assignments in order to
determine which of the cable’s wires to connect to which of the System 7’s
projector control port pins.
1
5
9
6
7
6
5
4
3
2
1
8
9
Purple
Blue
Green
Yellow
Orange
Red
Brown
Grey
Black
Connector Shell
Pin #Color
UC Cable
Shield
UC 50', 100', 200' Cable Color Codes
To the
projector
To the
switcher
Two categories of projector control files are sent via this port: RS1 and RS2.
Both types make it possible to control a projector’s power, mute, and input
selection functions.
RS1 files are for unidirectional (talk only) communication from the switcher
to the projector. RS1 requires only wiring the ground pins, the
switcher’s transmit pin, and the projector’s receive pin. Refer to the
following table and to the projector’s manual for wiring instructions.
RS1 (unidirectional communications) wiring —
used with user-defined and RS1 Extron files
Pin RS-232 RS-422
I n/a Transmit - (Tx-)
E Ground Ground
C Transmit (Tx) Transmit + (Tx+)
NOTE Each projector/display may require different wiring. For details,
refer to the manual that came with the projector.
RS2 files are for bidirectional (talk and listen) communications between the
switcher and projector. Transmit, ground, and receive pins must be
wired for RS2 communications. Except for the ground connection, RS2
wiring is projector-specific. Refer to the projector’s manual for details or
call the Extron S3 Sales and Technical Support Hotline if needed.
7
RS-232 port — This connector provides for two-way RS-232 communication.
See the “Serial Communication” chapter for information on how to install and
use the control software and SIS commands.