Extron electronic System 7SC User Manual

System 7SC

System Switcher

68-499-01 Rev. D

Printed in the USA

06 04

Precautions

Safety Instructions • English

This symbol is intended to alert the user of important operating and maintenance
(servicing) instructions in the literature provided with the equipment.

This symbol is intended to alert the user of the presence of uninsulated dangerous
voltage within the product's enclosure that may present a risk of electric shock.

Caution

Read Instructions • Read and understand all safety and operating instructions before using the

equipment.

Retain Instructions • The safety instructions should be kept for future reference.
Follow Warnings • Follow all warnings and instructions marked on the equipment or in the user

information.

Avoid Attachments • Do not use tools or attachments that are not recommended by the equipment

manufacturer because they may be hazardous.

Consignes de Sécurité • Français

Ce symbole sert à avertir l’utilisateur que la documentation fournie avec le matériel
contient des instructions importantes concernant l’exploitation et la maintenance
(réparation).

Ce symbole sert à avertir l’utilisateur de la présence dans le boîtier de l’appareil de
tensions dangereuses non isolées posant des risques d’électrocution.

Attention

Lire les instructions• Prendre connaissance de toutes les consignes de sécurité et d’exploitation avant

d’utiliser le matériel.

Conserver les instructions• Ranger les consignes de sécurité afin de pouvoir les consulter à l’avenir.
Respecter les avertissements • Observer tous les avertissements et consignes marqués sur le matériel ou

présentés dans la documentation utilisateur.

Eviter les pièces de fixation • Ne pas utiliser de pièces de fixation ni d’outils non recommandés par le

fabricant du matériel car cela risquerait de poser certains dangers.

Sicherheitsanleitungen • Deutsch

Dieses Symbol soll dem Benutzer in der im Lieferumfang enthaltenen
Dokumentation besonders wichtige Hinweise zur Bedienung und Wartung
(Instandhaltung) geben.

Dieses Symbol soll den Benutzer darauf aufmerksam machen, daß im Inneren des
Gehäuses dieses Produktes gefährliche Spannungen, die nicht isoliert sind und
die einen elektrischen Schock verursachen können, herrschen.

Achtung

Lesen der Anleitungen • Bevor Sie das Gerät zum ersten Mal verwenden, sollten Sie alle Sicherheits-und

Bedienungsanleitungen genau durchlesen und verstehen.

Aufbewahren der Anleitungen • Die Hinweise zur elektrischen Sicherheit des Produktes sollten Sie

aufbewahren, damit Sie im Bedarfsfall darauf zurückgreifen können.

Befolgen der Warnhinweise • Befolgen Sie alle Warnhinweise und Anleitungen auf dem Gerät oder in

der Benutzerdokumentation.

Keine Zusatzgeräte • Verwenden Sie keine Werkzeuge oder Zusatzgeräte, die nicht ausdrücklich vom

Hersteller empfohlen wurden, da diese eine Gefahrenquelle darstellen können.

Warning

Power sources • This equipment should be operated only from the power source indicated on the

product. This equipment is intended to be used with a main power system with a grounded
(neutral) conductor. The third (grounding) pin is a safety feature, do not attempt to bypass or
disable it.

Power disconnection • To remove power from the equipment safely, remove all power cords from

the rear of the equipment, or the desktop power module (if detachable), or from the power
source receptacle (wall plug).

Power cord protection • Power cords should be routed so that they are not likely to be stepped on or

pinched by items placed upon or against them.

Servicing • Refer all servicing to qualified service personnel. There are no user-serviceable parts

inside. To prevent the risk of shock, do not attempt to service this equipment yourself because
opening or removing covers may expose you to dangerous voltage or other hazards.

Slots and openings • If the equipment has slots or holes in the enclosure, these are provided to

prevent overheating of sensitive components inside. These openings must never be blocked by
other objects.

Lithium battery • There is a danger of explosion if battery is incorrectly replaced. Replace it only

with the same or equivalent type recommended by the manufacturer. Dispose of used batteries
according to the manufacturer's instructions.

Avertissement

Alimentations• Ne faire fonctionner ce matériel qu’avec la source d’alimentation indiquée sur

l’appareil. Ce matériel doit être utilisé avec une alimentation principale comportant un fil de
terre (neutre). Le troisième contact (de mise à la terre) constitue un dispositif de sécurité :
n’essayez pas de la contourner ni de la désactiver.

Déconnexion de l’alimentation• Pour mettre le matériel hors tension sans danger, déconnectez tous

les cordons d’alimentation de l’arrière de l’appareil ou du module d’alimentation de bureau (s’il
est amovible) ou encore de la prise secteur.

Protection du cordon d’alimentation • Acheminer les cordons d’alimentation de manière à ce que

personne ne risque de marcher dessus et à ce qu’ils ne soient pas écrasés ou pincés par des
objets.

Réparation-maintenance • Faire exécuter toutes les interventions de réparation-maintenance par un

technicien qualifié. Aucun des éléments internes ne peut être réparé par l’utilisateur. Afin
d’éviter tout danger d’électrocution, l’utilisateur ne doit pas essayer de procéder lui-même à ces
opérations car l’ouverture ou le retrait des couvercles risquent de l’exposer à de hautes tensions
et autres dangers.

Fentes et orifices • Si le boîtier de l’appareil comporte des fentes ou des orifices, ceux-ci servent à

empêcher les composants internes sensibles de surchauffer. Ces ouvertures ne doivent jamais
être bloquées par des objets.

Lithium Batterie • Il a danger d'explosion s'll y a remplacment incorrect de la batterie. Remplacer

uniquement avec une batterie du meme type ou d'un ype equivalent recommande par le
constructeur. Mettre au reut les batteries usagees conformement aux instructions du fabricant.

Vorsicht

Stromquellen • Dieses Gerät sollte nur über die auf dem Produkt angegebene Stromquelle betrieben

werden. Dieses Gerät wurde für eine Verwendung mit einer Hauptstromleitung mit einem
geerdeten (neutralen) Leiter konzipiert. Der dritte Kontakt ist für einen Erdanschluß, und stellt
eine Sicherheitsfunktion dar. Diese sollte nicht umgangen oder außer Betrieb gesetzt werden.

Stromunterbrechung • Um das Gerät auf sichere Weise vom Netz zu trennen, sollten Sie alle

Netzkabel aus der Rückseite des Gerätes, aus der externen Stomversorgung (falls dies möglich
ist) oder aus der Wandsteckdose ziehen.

Schutz des Netzkabels • Netzkabel sollten stets so verlegt werden, daß sie nicht im Weg liegen und

niemand darauf treten kann oder Objekte darauf- oder unmittelbar dagegengestellt werden
können.

Wartung • Alle Wartungsmaßnahmen sollten nur von qualifiziertem Servicepersonal durchgeführt

werden. Die internen Komponenten des Gerätes sind wartungsfrei. Zur Vermeidung eines
elektrischen Schocks versuchen Sie in keinem Fall, dieses Gerät selbst öffnen, da beim Entfernen
der Abdeckungen die Gefahr eines elektrischen Schlags und/oder andere Gefahren bestehen.

Schlitze und Öffnungen • Wenn das Gerät Schlitze oder Löcher im Gehäuse aufweist, dienen diese

zur Vermeidung einer Überhitzung der empfindlichen Teile im Inneren. Diese Öffnungen dürfen
niemals von anderen Objekten blockiert werden.

Litium-Batterie • Explosionsgefahr, falls die Batterie nicht richtig ersetzt wird. Ersetzen Sie

verbrauchte Batterien nur durch den gleichen oder einen vergleichbaren Batterietyp, der auch
vom Hersteller empfohlen wird. Entsorgen Sie verbrauchte Batterien bitte gemäß den
Herstelleranweisungen.

Instrucciones de seguridad • Español

Este símbolo se utiliza para advertir al usuario sobre instrucciones importantes de
operación y mantenimiento (o cambio de partes) que se desean destacar en el
contenido de la documentación suministrada con los equipos.

Este símbolo se utiliza para advertir al usuario sobre la presencia de elementos con
voltaje peligroso sin protección aislante, que puedan encontrarse dentro de la caja
o alojamiento del producto, y que puedan representar riesgo de electrocución.

Precaucion

Leer las instrucciones • Leer y analizar todas las instrucciones de operación y seguridad, antes de usar

el equipo.

Conservar las instrucciones • Conservar las instrucciones de seguridad para futura consulta.
Obedecer las advertencias • Todas las advertencias e instrucciones marcadas en el equipo o en la

documentación del usuario, deben ser obedecidas.

Evitar el uso de accesorios • No usar herramientas o accesorios que no sean especificamente

recomendados por el fabricante, ya que podrian implicar riesgos.

Advertencia

Alimentación eléctrica • Este equipo debe conectarse únicamente a la fuente/tipo de alimentación

eléctrica indicada en el mismo. La alimentación eléctrica de este equipo debe provenir de un
sistema de distribución general con conductor neutro a tierra. La tercera pata (puesta a tierra) es
una medida de seguridad, no puentearia ni eliminaria.

Desconexión de alimentación eléctrica • Para desconectar con seguridad la acometida de

alimentación eléctrica al equipo, desenchufar todos los cables de alimentación en el panel trasero
del equipo, o desenchufar el módulo de alimentación (si fuera independiente), o desenchufar el
cable del receptáculo de la pared.

Protección del cables de alimentación • Los cables de alimentación eléctrica se deben instalar en

lugares donde no sean pisados ni apretados por objetos que se puedan apoyar sobre ellos.

Reparaciones/mantenimiento • Solicitar siempre los servicios técnicos de personal calificado. En el

interior no hay partes a las que el usuario deba acceder. Para evitar riesgo de electrocución, no
intentar personalmente la reparación/mantenimiento de este equipo, ya que al abrir o extraer las
tapas puede quedar expuesto a voltajes peligrosos u otros riesgos.

Ranuras y aberturas • Si el equipo posee ranuras o orificios en su caja/alojamiento, es para evitar el

sobrecalientamiento de componentes internos sensibles. Estas aberturas nunca se deben obstruir
con otros objetos.

Batería de litio • Existe riesgo de explosión si esta batería se coloca en la posición incorrecta. Cambiar

esta batería únicamente con el mismo tipo (o su equivalente) recomendado por el fabricante.
Desachar las baterías usadas siguiendo las instrucciones del fabricante.

Table of Contents

Chapter 1 • Introduction .......................................................................................................1-1

About this Manual ............................................................................................................. 1-2

About the System 7SC...................................................................................................... 1-2

What is the System 7SC?.................................................................................................... 1-2

Controlling the switcher and an A/V system ....................................................................1-3

Features and Options........................................................................................................ 1-4

Features ..............................................................................................................................1-4

Options and accessories..................................................................................................... 1-5

Chapter 2 • Installation .......................................................................................................... 2-1

Mounting the Switcher.................................................................................................... 2-2

Tabletop use .......................................................................................................................2-2

Rack mounting ................................................................................................................... 2-2

Cabling and Panel Views................................................................................................. 2-2

Power, video, and audio connections ...............................................................................2-4

Front panel inputs .............................................................................................................. 2-4

Rear panel inputs ................................................................................................................ 2-5

Outputs ................................................................................................................................ 2-6

Control device connections ............................................................................................... 2-8

Connecting and Slaving a Switcher......................................................................... 2-12

Labeling Buttons on the System 7SC and SCPs .................................................2-14

Button-Label Generator software................................................................................... 2-15

Installing the software ..................................................................................................... 2-15

Using the software............................................................................................................ 2-15

Installing labels in the System 7SC’s buttons.................................................................. 2-16

Chapter 3 • Operation and Configuration................................................................. 3-1

Front Panel Features and Basic Operation ............................................................. 3-2

Control features ................................................................................................................. 3-2

Adjustment features ..........................................................................................................3-4

Input selection features..................................................................................................... 3-5

Miscellaneous features ...................................................................................................... 3-5

IR and RS-232 Projector Control ..................................................................................3-6

Projector control memory ................................................................................................. 3-6

Optimizing the System .................................................................................................... 3-7

Setting up a DVD source ................................................................................................... 3-7

Menus, Configuration, and Adjustments ............................................................... 3-8

Moving through menus by using front panel controls ................................................... 3-8

Menu overview .................................................................................................................. 3-8

Switcher Setup/Configuration ........................................................................................... 3-9

Scaler Rate (resolution and refresh rate)......................................................................... 3-10

Scaler Sync (RGB format) .................................................................................................. 3-10

Scaler Polarity (sync polarity) ........................................................................................... 3-10

System 7SC • Table of Contents

i

Table of Contents, cont’d

RGB Delay (Triple-Action Switching™) ............................................................................. 3-10

Scaler Blue Out .................................................................................................................. 3-10

Edge Smoothing ............................................................................................................... 3-11

Add Slave (slaving switchers) ........................................................................................... 3-11

Autoselect #7 (front panel input automatic signal type selection) ............................... 3-11

Audio/Video Adjustments ............................................................................................... 3-12

Input Config(uration) (signal format) ............................................................................. 3-12

Audio Level........................................................................................................................ 3-13

Blank Input (blanking adjustment).................................................................................. 3-13

Image Size ......................................................................................................................... 3-13

Size Input ........................................................................................................................... 3-13

IR Learning Configuration ............................................................................................... 3-14

Clearing IR commands from memories ........................................................................... 3-15

Initiating IR learning ......................................................................................................... 3-16

Information System/Options ........................................................................................... 3-17

Reset to Default (clearing settings and adjustments) .................................................... 3-17

Global system reset ........................................................................................................... 3-17

Image adjustments .......................................................................................................... 3-17

Color, tint, brightness, contrast, detail ............................................................................ 3-17

Centering ........................................................................................................................... 3-18

Executive mode (front panel lockout) ............................................................................ 3-18

Remote Control of the System 7SC ......................................................................... 3-19

SCP control pads .............................................................................................................. 3-19

IR 701 infrared remote control ....................................................................................... 3-20

Selecting an input ............................................................................................................. 3-20

Chapter 4 • Serial Communication................................................................................. 4-1

RS-232 Programmer’s Guide .......................................................................................... 4-2

Host-to-switcher communications .................................................................................... 4-2

Switcher-initiated messages ............................................................................................... 4-2

Error responses .................................................................................................................... 4-2

Using the command/response tables ................................................................................. 4-3

Command/response table for SIS commands .................................................................... 4-4

Command/response table for special function SIS commands ........................................ 4-8

Command/response table for advanced instructions ............................................................

(for the Windows-based control program) ..................................................................... 4-10

Control Software for Windows..................................................................................4-11

Installing the software .................................................................................................... 4-11

Using the control program .............................................................................................. 4-11

Mini Mode ......................................................................................................................... 4-11

User Mode ......................................................................................................................... 4-12

I/O Configurations............................................................................................................. 4-12

Real Time Adjustments ..................................................................................................... 4-13

Projector Driver ................................................................................................................. 4-14

Room & Misc. Options ...................................................................................................... 4-15

Saving and restoring configurations ............................................................................... 4-15

Using the help program ................................................................................................... 4-16

Downloading and using projector drivers....................................................................... 4-16

Key to file names .............................................................................................................. 4-16

ii System 7SC • Table of Contents

Appendix A • Reference Material .................................................................................. A-1

Specifications....................................................................................................................... A-2

Part Numbers and Accessories .................................................................................... A-5

Included parts ................................................................................................................... A-5

Accessories......................................................................................................................... A-5

Firmware Upgrade Installation................................................................................... A-6

Glossary .................................................................................................................................. A-8

All trademarks mentioned in this manual are the properties of their respective owners.

68-499-01 Rev. D

Printed in the USA

06 04

System 7SC • Table of Contents

iii

Table of Contents, cont’d

iv System 7SC • Table of Contents

System 7SC

Chapter One

1

Introduction

About this Manual

About the System 7SC

Features and Options

Introduction

About this Manual

This manual discusses how to install, operate and configure Extron’s System 7SC
switcher and how to operate the optional IR 701 infrared remote control. For
information on installing and operating related accessories, see the user’s guides
for the following products: Extron’s Power Sensor (part #68-391-01), IR Broadcaster
(part #68-392-02); and the SCP/AAP A, SCP 200, and SCP 250 control pads (part
#68-511-01).

Throughout this manual the terms “System 7” and “System 7SC” are used
interchangeably to refer to the same product.

About the System 7SC

What is the System 7SC?

The System 7SC is a seven input, configurable switcher with a built-in video scaler
and projector control ability.

The System 7SC provides central control and integration for small audio/video
(A/V) installations. It offers video and audio switching, room controls, and
projector control. Each of these functions can be controlled at the front panel, by a
hardwired control pad, by infrared remote control (the IR 701), or via RS-232
control.

The switcher can control video and audio input settings; display functions such as
power, video mute and video modes; and execute relay/room functions, such as
lowering or raising display screens or powering lights on or off. The System 7SC
also has the ability to “learn” infrared projector control commands.

The System 7SC accepts computer-video (RGB), component video, S-video and
composite video, and each input is separately configurable. The switcher also
accepts seven line-level, balanced or unbalanced stereo audio inputs.

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System 7SC • Introduction1-2

The System 7SC scales composite video, S-video, and component video up to
computer-video (RGBHV/RGBS/RGsB), which can be output to two display
devices via individually buffered BNC and 15-pin HD ports. The System 7SC offers
one fixed level (preamp) stereo audio output and one variable level stereo audio
output.

Rear panel ports allow connection of remote control keypads, the IR Emitter and/
or the optional IR Broadcaster, an optional display power sensor, hardwired
projector control, and an RS-232 controller. The System 7SC also has a power port
to provide power for accessories such as SCP control pads.

Controlling the switcher and an A/V system

The System 7SC can be controlled using one or more of these items:

• The front panel controls.

• A computer, a touch screen panel, or any other device that can send and receive
the serial communications through the RS-232 port. Extron’s Simple
Instruction Set (SIS
with any such devices, and Extron’s control software for Windows provides a
graphical interface for controlling the switcher from a computer.

• A contact closure device.

• Extron control pads, such as the SCP 250, SCP 200, or SCP/AAP A.

• The optional IR 701 remote control, which can perform all of the front panel
functions.

For the System 7SC switcher to control a projector, it must be programmed. The
switcher can be programmed by having it learn projector IR commands, or Extron’s
IR/RS-232 library of commands can be loaded into the switcher’s memory. The
IR/RS-232 library and the latest control software are available on the Extron Web
site at

http://www.extron.com.

The System 7SC learns new projector control commands from infrared (IR) signals
it receives via its front panel IR port or from commands input via an RS-232 device.
These commands are stored in the switcher’s memory and assigned to the front
panel control (Display Power, Display Mute, Mode, Room 1, Room 2) and input
buttons. When a button is pressed, the switcher transmits the stored signals to the
projector via the IR comm port or the projector control RS-232 port. The IR 701,
optional control pads, and/or an RS-232 control system can also be used to execute
these stored commands.

™

) is a set of simple keystroke commands that can be used

1-3System 7SC • Introduction

Introduction, cont’d

Features and Options

Features

350 MHz (-3 dB) video bandwidth
Configurable video inputs —

• Inputs 1 to 6 — Six sets of 5 BNC connectors on the rear panel accept
RGBHV/RGBS/RGsB computer video, component video, S-video or
composite video input, and are individually configurable.

• Input 7 — Input 7 (on the front panel) includes a VGA-type 15-pin HD
connector for RGB computer video input, a 4-pin mini DIN connector for
S-video input, and one RCA connector for composite video input. Input 7
can be configured for one of these video formats, or it can be set to
automatically detect the active input.
This input is buffered and can drive a signal approximately 50 feet (15
meters) using Extron cable.

Switcher slaving — Input 1 can be used to connect and control a slaved switcher,

expanding the capacity of the System 7SC to a maximum of 16 inputs.

Buffered video outputs — Five rear-panel BNC connectors and one VGA-type

15-pin HD port provide connections for RGB output. Both outputs (the BNCs
and the 15-pin HD port) are active at all times.

Seven balanced or unbalanced stereo audio inputs — The front panel mini stereo

jack or RCA connectors (for unbalanced input only), and six rear panel
captive screw connectors accept audio inputs. Each input’s gain and
attenuation levels can be individually set.

Two balanced or unbalanced stereo audio outputs — One fixed line level output

(for a recording device) and one variable line level output (for use with an
amplifier or mixer) are provided on 3.5 mm, 5-pole captive screw terminals.
The variable line level output can be controlled via the front panel, the IR 701,
optional control pads, or an RS-232 system.

Audio breakaway — Audio and video can be switched separately via RS-232.
Four ways to control the switcher — The switcher’s front panel, a computer or

other RS-232 control device, an IR 701 remote control, or a remote keypad can
all be used to control the switcher.

RS-232 configuration — The System 7SC can be configured by using the Extron

control software for Windows, or by using a third party control system.

Room controls — Two relays are provided for controlling lights, window

coverings, a display screen or another item in the room. The Room control
buttons can be set to also send an IR or RS-232 command.

Projector control — The System 7SC can control the projector’s display power,

video mute and mode functions.

Projector control command learning — The switcher can “learn” new projector

control commands by storing IR signals it receives through the front panel,
via files downloaded from Extron’s command library, or from commands
entered via the Windows-based control program. Learned commands can be
associated with any of the front panel input selection or control buttons, and
they are output through the IR Emitter/IR Broadcaster or the projector
control RS-232 port.

Inactivity projector shutdown timer — Using the included control/configuration

software, the switcher can be set to monitor the time elapsed since the last
input selection (or other function) and to send a command to turn the
projector off after a set period of inactivity.

System 7SC • Introduction1-4

Triple-Action Switching™ — With this method, a blank screen is displayed while

the System 7SC switches between inputs.

Built-in video scaler — This feature scales all composite, S-video and component

video signals up to computer-video rates for output on RGB display devices.

Accu-RATE Frame Lock

™

— The patented Extron Accu-RATE Frame Lock

™

eliminates artifacts from scaled motion video by eliminating frame rate
conversion. It locks the output frame rate to the input frame rate of the active
input. The result is a switching system that eliminates image tears and other
artifacts from motion video.

Dynamic Motion Interpolation (DMI

™

) — This video processing technique is an

advanced motion prediction and compensation method that treats motion
content and still content with different algorithms to yield high fidelity images.

3:2 pulldown detection for NTSC and 2:2 film detection for PAL video sources —

These advanced film mode processing features help maximize image detail
and sharpness for video sources that originated from film. When film is
converted to NTSC video, the film frame rate has to be matched to the video
frame rate in a process called 3:2 pulldown. Jaggies and other image artifacts
can result if conventional deinterlacing techniques are used on film-source
video. The System 7SC’s advanced film mode processing recognizes signals
that originated from film. The System 7SC then applies video processing
algorithms that optimize the conversion of video that was made with the 3:2
pulldown process. This results in richly detailed images with sharply
defined lines. A similar process is used for PAL film-source video.

Versatile mounting options — The System 7SC can be rack mounted, or it can be

placed on a table or other furniture. Rubber feet and rack mounting
hardware are included.

Options and accessories

The System 7SC’s optional equipment expands a user’s ability to control system
devices. Optional equipment includes:

• Display power sensor — This sensor (part #60-271-01) detects whether the
projector’s power is on or off.

• SCP control pads — Up to sixteen (16) Extron SCP/AAP A, SCP 200, and/or
SCP 250 control pads can be connected via a rear panel port. Each SCP
replicates some or all of the System 7SC’s front panel controls.

• IR Broadcaster — The Extron IR Broadcaster (part #60-272-02) has a greater
range than the IR Emitter and transmits signals over a wide area.

1-5System 7SC • Introduction

Introduction, cont’d

System 7SC • Introduction1-6

System 7SC

Chapter Two

2

Installation

Mounting the Switcher

Cabling and Panel Views

Connecting and Slaving a Switcher

Labeling Buttons on the System 7SC and SCPs

Installation

Mounting the Switcher

Tabletop use

Rack mounting

The System 7SC comes with rack mounting brackets and rubber feet. For tabletop
use, attach a self-adhesive rubber foot to each corner of the bottom of the unit.

For rack mounting, do not install the rubber feet. Attach the provided rack
mounting brackets to the switcher with machine screws, as shown below, then
fasten the switcher to the rack using the supplied machine screws.

E

M

LU

O

V

ST

JU

IL

D

A

TA

E

D

T

N

O

C

T

H

IG

R

B

T

U

N

TIN

E

M

R

O

L

O

C

R
TE
U

P

M

CO

7

T

U

P

IO

D

IN

U

A

R

EO

S-VID

L

O

E

ID

L

M

O

O

R

O

T

R

N

O

2

C

M

O

O

R

1

E

D

O

M

P

IS

D

E

T

U

P

M

IS

D

R

456

W

P

3

2

1

V

7

7SC

IR

N

R

A

E

L

SYSTEM

X

XT

Y

R

E

A

N

L

P

S

I

D

X

T

X

R

Rack mounting the System 7SC

Cabling and Panel Views

The diagram on the next page shows an example of a typical System 7SC
application and cable connections.

System 7SC • Installation2-2

CONTROL

DISP

DISP

MODE

PWR

MUTE

1234567

System 7SC
Front Panel

ROOM1ROOM

DETAIL

CONT

INPUT 7

LR

LR

BRIGHTTINTCOLOR

ADJUST

NEXT

MENU

COMPUTERS-VIDEO

TX
RX

Laptop
Computer

IRDISPLAY

RX LEARN

VOLUME

SYSTEM 7SC

2

VIDEO AUDIOS-VIDEO

VIDEO

RGB 440

Laptop
Computer

VCR

Anaheim, CA

100-240

50/60 Hz

1.3A MAX.

System 7SC
Rear Panel

INPUTS

R

R-Y

G/Y
VID

B/C
B-Y

R

H/HV

R-Y

G/Y

V

VID

1

B/C
B-Y

AUDIO IN

R

H/HV

2 3 4 5 6

H/HV

R-Y

G/Y

V

V

VID

B/C
B-Y

AUDIO OUT

FIXED VARIABLE

LR1LR2LR3LR4LR5LR6LR

Audio AmplifierRecording Device

Document

Camera

R

H/HV

R-Y

G/Y
VID

B/C
B-Y

LR

V

R

H/HV

R-Y

G/Y

V

VID

B/C
B-Y

SCP/AAP CONTROL

ABCDEABCDE

12

R-Y

G/Y
VID

B/C
B-Y

R

H/HV

V

12345

CONTACT CLOSURE

67

Plasma Display

OUTPUTS

RGB

RGB

ABCDEABCDE

DISPLAY PWR

RELAY 1 RELAY 2

Powe r

Projector

H/HV

V

ABCDE ABCDEFGH IJ

IR COMM

SENSOR

AC

PROJ CONTROL

RS-232

Current
Sensor

POWER SENSOR

Display
Power
Sensor

Host Computer/
RS-232 Control
System

IR Emitter

or

Comm.Emitter

IR BROADCASTER

IR Broadcaster

H. SHIFT

AUTO

POWER

AUDIO

INPUT

RGB 508 with
SCP/AAP A

Lighting

Shades/drapes

Room Control

SHOW ME

HIGH Z

75 Ohm

AUDIO

VOLUME

MAX/
MIN

DISPLAY
MUTE

POWER

MODE

SCP/ AAP A

RGB 508

WITH ADSP

TM

1

I

n
p
u

2

5

t
S
e
le

c
t
io
n
3

6

9

Room 1

7

0

R

oom

8

2

E
N
T
E
R

S

C

H

O

I
F

L

T

O

R

T

I
N

T
C
O

I
m

N

a

T

g
e
A

d
j
u
s

t
m
e

B

n

R

t

I

s
G
H

T
D
E

T
A
I

L

S
y
s

t
e
m

I
R

R

7

e

0

m

1

o

t
e

IR 701 Remote

C

D

o

ispla
Po

n

t

we

r

y

o

r

l

F
u

n
c
t
i

o

D

n
s

isp

M

lay

ute

M

A

o

u

d

d

e

i
o

M
u
t

e
V
o
l
u

m
e

4

DISPLAY AUDIO

POWER MUTE

ROOM1ROOM

SCP 250

2

MAX/

MODE

IR

MIN

VOLUME

1234567

SCP 250

VCR

Computer

Doc. Camera

DVD Player

Contact Closure
Keypad

2-3System 7SC • Installation

Installation, cont’d

Tip (L) Sleeve (GND)

Tip (L)

Ring (R)

Sleeve (GND)

Power, video, and audio conections

With the exception of input 7 on the front panel, all input and output connectors
are on the rear panel.

Front panel inputs

Input 7 on the front panel accepts video and one audio input. Only one video
format and one audio port will be active at a time on the front panel.

The active input type (RGB, S-video, or composite video) can be selected via the
LCD menu (see chapter three, “Operation and Configuration”, for details), or, in
autoselect mode, the System 7 automatically detects the active video signal and
selects that video signal format. If all formats are active, the default will be RGB
computer video input. An LED near each video connector indicates which input
type is active.

VIDEO AUDIOS-VIDEO

VIDEO

INPUT 7

LR

LR

BRIGHTTINTCOLOR

MENU

COMPUTERS-VIDEO

NEXT

ADJUST

TX
RX

IRDISPLAY

RX LEARN

VOLUME

SYSTEM 7SC

DETAIL

CONT

1 2 543

If the autoselect feature is on, and input 7 is selected, and all ports for input 7
have active video signals, then the 15-pin HD computer video (RGB) port will
be selected as the default source. Both input 7 and the autoselect feature must
be selected for autoselect to be active.

Composite video (Video) port — This female RCA-type connector is for

1

composite video input. In autoselect mode, the composite video input will be
set for motion mode.

S-video port — Connect an S-video source to this 4-pin mini DIN connector.

2

In autoselect mode, S-video will be set for motion mode.
RCA audio port — Connect the left audio signal cable to the

3

white RCA connector (L), and the right signal cable to the
red RCA connector (R) for unbalanced stereo audio input.

Tip Sleeve (GND)

Wire the RCA plugs as shown at left.

Connect an active audio input to only one audio port
– either the RCA port or the PC port.

PC audio port — This 3.5 mm mini stereo jack is

4

for unbalanced, computer level stereo audio
input. Wire the plug as shown at right.

Connect an active audio input to only one audio
port – either the PC port or the RCA port.

Computer video (RGB) port — Connect a computer video (RGBHV, RGBS,

5

RGsB, or RsGsBs) source via this VGA 15-pin HD connector. By default pins
4, 10, and 11 are grounded for ID bit termination.

System 7SC • Installation2-4

Input 7 is buffered and can drive a signal approximately 50 feet (15 meters)
using Extron cable.

Rear panel inputs

1 2

Anaheim, CA

100-240

1.3A MAX.

50/60 Hz

R

H/HV

R-Y

G/Y
VID

V

1

B/C
B-Y

LR1LR2LR3LR4LR5LR6LR

R

H/HV

R-Y

G/Y

V

VID

2 3 4 5 6

B/C
B-Y

AUDIO IN

R-Y

G/Y
VID

B/C
B-Y

R

3

AC power connector — Plug a standard IEC power cord into this connector

1

to connect the switcher to a 100 to 240 VAC, 50 Hz or 60 Hz power source.
The front panel control and input selection buttons will light in sequence
during power-up.

INPUTS

H/HV

V

AUDIO OUT

FIXED VARIABLE

R

R-Y

G/Y
VID

B/C
B-Y

LR

H/HV

V

R

H/HV

R-Y

G/Y

V

VID

B/C
B-Y

SCP/AAP CONTROL

EDCBAEDCBA

12

R-Y

G/Y

VID

B/C
B-Y

R

H/HV

V

12345

CONTACT C

R

R-Y

G/Y

VID

B/C

B-Y

RGBHV

input

H/HV

Video inputs 1 through 6 — These inputs accept computer video (RGB),

2

component video, S-video, or composite video signals. The front panel input
selection button lights steadily when the corresponding input is selected. If
audio breakaway is active (selected via RS-232), the front panel input selection
button correspond-ing to the audio input source blinks, and the button
corresponding to the video source lights steadily.

Each input has five female BNC connectors. Connect the cables for the
appropriate signal type as shown in the following illustration.

R

H/HV

R-Y

V

G/Y

V

VID

B/C

B-Y

RGBS

input

R

R-Y

G/Y

VID

B/C

B-Y

RGsB

input

H/HV

V

R

H/HV

R-Y

G/Y
VID

B/C

B-Y

Component

video input

(R-Y, Y, B-Y)

R

H/HV

R-Y

V

G/Y

V

VID

B/C
B-Y

S-video

input

(Y, C)

R

H/HV

R-Y

G/Y

VID

B/C
B-Y

Composite
video input

(Video)

V

For S-video, connect the luma (Y) signal to the BNC connector
marked G/Y/Vid, and the chroma signal (C) to the BNC marked B/C/B-Y.
A BNC-to-4-pin mini DIN (S-video) adapter may be required.

Configure each input’s video format via the front panel LCD menu (see
chapter three, “Operation and Configuration”) or using RS-232 programming
(see chapter four, “Serial Communication”).

If a slave switcher will be used, the output of that switcher must be connected
to input 1 of the System 7SC.

2-5System 7SC • Installation

Installation, cont’d

Audio inputs 1 through 6 — Each input has a 3.5 mm, 5-pole captive screw

3

connector for balanced or unbalanced stereo audio input. Connectors are
included with each System 7, but the user supplies the audio cable. See the
following wiring diagrams to wire a connector for the appropriate input type
and impedance level. High impedance is generally over 800 ohms.

Tip

Sleeve

Tip

Sleeve

Unbalanced Input

(high impedance)

Captive screw connector wiring for rear panel audio inputs

LR

AUDIO

Ring

Sleeve (s)

Ring

Tip

Tip

LR

AUDIO

Ring

Sleeve (s)

Ring

Balanced Input

(high impedance) (600 ohms)

600 ohms

Tip

Tip

600 ohms

Balanced Input

LR

AUDIO

Outputs

INPUTS

R-Y

G/Y
VID

R

H/HV

V

R-Y

G/Y
VID

R

H/HV

V

R-Y

G/Y
VID

R

H/HV

V

4 56

AUDIO OUT

FIXED VARIABLE

LR

LR

B/C
B-Y

B/C
B-Y

SCP/AAP CONTROL

EDCBA EDCBA

12

B/C
B-Y

12345 ABCDEABCDE67

CONTACT CLOSURE

1 2 3

Line level audio output (Fixed) — For unamplified audio output, connect an

1

audio device, such as an audio recorder, VCR, or powered speakers, to this

3.5 mm, 5-pole captive screw connector. Follow the diagram below for correct
wiring.

Unbalanced Output

Sleeve (s)

Tip

See Warning

Tip

See Warning

LR

AUDIO

4

OUTPUTS

RGB

RGB

DISPLAY PWR

RELAY 1 RELAY 2

Balanced Output

Tip

Ring

Sleeve (s)

Tip

Ring

SENSOR

H/HV

V

RS-232

EDCBA ABCDEFGHIJ

IR COMM

LR

PROJ CONTROL

AUDIO

Connect the sleeve to ground (Gnd). Connecting the sleeve to a
negative (-) terminal will damage the audio output circuits.

The gain can be set separately for each input channel so that there is no
audible difference in level when switching between inputs. See chapter three,
“Operation and Configuration”, for information on adjusting the audio
output level via LCD menu and front panel controls. See chapter four, “Serial
Communication”, for information on using the Simple Instruction Set (SIS)
commands and the Windows-based control/configuration program to adjust
audio levels and to set audio breakaway.

The Fixed audio output and the Variable audio output are simultaneously
active, therefore two devices can be connected at the same time. Both outputs
carry the same input’s audio signal.

System 7SC • Installation2-6

Adjustable level audio output (Variable) — For adjustable level audio

2

output, connect an audio device, such as an amplifier, or mixer, to this

3.5 mm, 5-pole captive screw connector. Follow the diagram and warning
shown in

1

for correct wiring. See chapters three and four for details on per-

channel input gain adjustments and on audio breakaway.
The overall level for this output is controlled by the front panel Volume knob.

As shown in the diagram below, the volume adjustment applies an
attenuation after the per-input gain adjustments discussed in

1

are applied.
For this output the volume level adjustments apply to all the inputs and
cannot be set separately per input channel.

Audio

inputs

1
2
3
4
5
6
7

Per-input
gain adjustment

Master (Volume)
adjustment

Variable
audio output

Fixed
audio output

The Fixed audio output and the Variable audio output are simultaneously
active, therefore two devices can be connected at the same time. Both outputs
carry the same input’s audio signal.

Output 15-pin HD connector — Connect a display device to this female

3

VGA-style connector for RGB output.

Both outputs are buffered and can be connected simultaneously. The sync
format will be the same for both outputs.

Output BNC connectors — Connect coaxial cables from another display

4

device to these BNCs for one RGBHV, RGBS, or RGsB/RsGsBs video output
as follows:

RG B

H/HV

V RG B

H/HV

RGBSRGBHV RGsB (Sync on Green)

V RG B

RsGsBs

(output only if input is RsGsBs)

Both outputs are buffered and can be connected simultaneously to two different
displays. For RGB inputs, the output signal’s sync format is based on the
format of the incoming RGB signal. For all other types of inputs, the user
selects the output sync format. The sync format will be the same for both
outputs.

H/HV

V

2-7System 7SC • Installation

Installation, cont’d

RS-232

PROJ CONTROL

CONTACT CLOSURE

RELAY 1 RELAY 2

12

DISPLAY PWR

SENSOR

IR COMM

RGB

H/HV

V

SCP/AAP CONTROL

OUTPUTS

RGB

12345 ABCDEABCDE67

EDCBA ABCDEFGHI J

EDCBAEDCBA

R

R-Y

G/Y
VID

H/HV

V

B/C
B-Y

R

R-Y

G/Y

VID

H/HV

V

B/C
B-Y

5 6

1 4

5 6

7

2

3

Control device connections

SCP/AAP Control ports — Connect Extron SCP control pads (SCP 250,

1

SCP 200, or SCP/AAP A) to these 5-pole captive screw connectors to provide
remote control of the System 7SC. The SCPs replicate several of the front
panel controls. The SCP 200 and SCP 250 are also able to receive infrared
signals from the IR 701 remote control and send them to the switcher.

In total, up to sixteen (16) control pads in any combination can connected to
these ports if they are linked together with cables such as Extron’s Comm
Link cable. Refer to the appropriate SCP user’s manual for details and wiring
diagrams.

The SCP/AAP Control port has the following pin assignments:

SCP/AAP CONTROL

EDCBA

Captive screw and 3.5 mm stereo jack connectors are included with the
switcher, but the installer provides the cables.

EDCBA

System 7SC • Installation2-8

12

A

Ground (shield/drain)

B

Comm. signal (white)

C
D

Ground (black)

E

+12 VDC (red)

To / from
SCP 200,
SCP 250,

or SCP/AAP A

Each port provides up to 12 VDC for powering the SCP control pads or other
devices. However, the total load for both ports combined must not exceed
1 ampere.

The load (such as an SCP control pad or interface) should not be placed further
than a maximum of 300 feet (91.4 meters) from the System 7SC switcher.

Contact closure — Connect an optional contact closure control device here.

2

Select an input channel by making contact closure between an input’s pin
(pins 1 through 7 correspond to inputs 1 through 7) and a ground pin (pins 8,
9, and 10). Continuous connections made by contact closure override all other
means of selection: continuous contact closure takes precedence over front
panel and RS-232 selection.

Room/relay ports (Relay 1, Relay 2) — These allow control of “room”

3

functions – items such as room lighting, window coverings, and display
screens – via momentary or latching contact. These contacts may be used to
control any equipment as long as the contact specifications of a total of
24 volts at 1 ampere are not exceeded for each port.

Each relay has two sets of contacts: one pair is closed by default, the other pair
is open by default, as shown below. Both of a relay’s contacts can be used at
the same time, so a total of four sets of contacts can be used simultaneously.

Normally open (2)

Normally open (1)

Not
used

A

Normally closed (2)

Normally closed (1)

ABC

DEBCDE

RELAY 2RELAY 1

System 7SC
Relay ports

Normally closed (2)

E

Normally closed (1)

D

Normally open (2)

C
B

Normally open (1)

A

Not used

To / from

room control

equipment

When the room function is active, the closed contacts open, and the open
contacts close. Contacts can be programmed to operate in one of two ways:

• latching (brief contact) (press to turn on, press to turn off), or

• momentary (timed) (press to turn on, timeout to turn off).
In the timed mode the default timeout period is

1

/8 second. Use the front
panel menus or the control software for Windows to change the length of the
timeout period. See “Serial Communication”, chapter four, for details.

Display power sensor port — This mini stereo-style jack allows connection

4

of an optional display power (current) sensor (part #60-271-01). The sensor is
used to keep the projector and the System 7SC in sync. Refer to the Power

Sensor User’s Guide, part #68-391-01, for information on operating the sensor.

The power sensor port supplies +12 VDC. To avoid electric shock when
connecting the cable from the power sensor into the System 7’s rear panel
port, always connect the stereo jack at one end of the cable to the power
sensor unit before plugging the jack at the other end into the System 7.

The wiring connections are the same on both
ends of the cable that connects the power sensor
to the System 7. Wire the included connector as

Tip (+12 V)

Ring

(signal)

shown at right.
Use a 3-wire cable.

IR communications port (IR Comm) —

5

Sleeve ( )

Connect the included IR Emitter or optional IR Broadcaster via this captive
screw connector to send learned/uploaded IR signals (which differ from
IR 701 remote control signals) to control the projector. The signals from the
optional IR Broadcaster cover a wider area and greater distance than do those
from the emitter, so it can be placed further from the projector.

2-9System 7SC • Installation

Installation, cont’d

The pin assignments are as follows:

A

Signal

B

Display power/current sensor detection

C

Carrier & signal

Gnd

D

+12 V

E

Wire the connector using one of the following wiring options.

For the IR Emitter only

IR COMM

IR COMM

ABCDE

System 7
IR Comm

ABCDE

System 7
IR Comm

Port

Port

C

Carrier & Signal

Gnd*

D

100'

(30.5 m)

White Striped Wire Only

IR Emitter

C

Carrier & signal

Gnd

D

+12 V

E

For the IR Broadcaster with emitter port

ABCDE

System 7
IR Comm

IR COMM

Port

A

Signal

(Demodulated IR)

Gnd

D

For a wired projector remote port

IR Communications port wiring options

For some projectors the emitter must be used together with the IR Broadcaster.
Refer to the IR Broadcaster User’s Guide (part #68-392-02) or contact an
Extron support representative for details.

Projector control port — Connect a cable between the projector and this

6

3.5 mm, 10-pole captive screw connector for RS-232 or RS-422 one- or two­way projector/display device control. Commands from a downloaded
projector control program or user-defined command strings entered via the
Windows-based control program can be sent to the display device from this
port.

To IR Broadcaster

with emitter port

(#60-272-02)

To the projector's
wired remote port

(Connector type
and pin
configurations may
vary depending on
the projector
model.)

Use the following illustration as a guide to wiring the connector. Wiring will
vary depending on the projector model. In most cases only the transmit (Tx)
and ground connections will be needed.

System 7SC • Installation2-10

Tx

ABCDE

FGHI J

To the

switcher

PROJ CONTROL

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.

*

I

*

H

*

G

F

*

E

Ground (Gnd, )

D

*

C

Transmit (Tx)

B

*

A

*

To / from
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.

Black

9

Grey

8

Purple

Blue
Green
Yellow

Orange

Red
Brown

7
6
5
4
3
2
1

Pin #Color

Shield

UC Cable

Connector Shell

1

5

UC 50', 100', 200' Cable Color Codes

6
9

To the

projector

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.

RS-232 port — This connector provides for two-way RS-232 communication.

7

See the “Serial Communication” chapter for information on how to install and
use the control software and SIS commands.

2-11System 7SC • Installation