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 afi n 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 fi xation • Ne pas utiliser de pièces de fi xation 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 qualifi ed 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 fi l 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
qualifi é. Aucun des éléments internes ne peut être réparé par l’utilisateur. Afi n 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 orifi ces • Si le boîtier de l’appareil comporte des fentes ou des orifi ces, 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 qualifi ziertem 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 empfi ndlichen 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 especifi camente recomendados
por el fabricante, ya que podrian implicar riesgos.
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 califi cado. 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 orifi cios 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.
Turn off power to the input and output devices,
and remove the power cords from them.
Step 2 — Mounting
If desired, mount the switcher in a rack or under a
table.
Step 3 — Inputs
As applicable to your switcher, connect:
a Up to 4, 6, 8, or 12 S-video inputs to
the Input connectors.
— or —
— or —
b Up to 4, 6, 8, or 12 composite video
inputs to the Input connectors.
c Up to 4, 6, 8 or 12 unbalanced stereo
audio inputs to the input RCA
connectors.
d Up to 4, 6, 8 or 12 balanced or
unbalanced stereo audio inputs to
the input captive screw connectors.
Step 4 — Outputs
As applicable to your switcher, connect:
a An S-video display
or other device to
the Output B
connector.
b 1 or 2 composite
video displays or
other devices to the Output connector(s).
S-video
Switcher
A
— or —
B
c An unbalanced stereo audio device to the
output A connectors.
OUTPUT A
L
R
OUTPUT B
LR
RCA Connector
Audio Switcher
— or —
LR
d 1 or 2 balanced or unbalanced stereo audio
devices to the output connectors.
Step 5 — Remote/RS-232
If desired, connect a control system, computer, or
contact closure device (SW 4 and SW 6 models
only) to the Remote (SW 4 and SW 6 models only)/
RS-232 (SW8 and SW12 models only) port.
If desired, feed a black burst (gen lock)
signal to the external sync connectors.
1
Step 7 — Power up
Plug the switcher and input and output devices
into a grounded AC source. Turn on the input and
output devices.
IN
OUT
Front Panel Controls
I/O button selects video, audio, or both for input
A
B
B
selection.
The I/O button has no function on audioonly switchers.
Video and Audio LEDs indicate whether video,
audio, or both are selected.
The Audio LED is always lit on audio-only
switchers.
Input buttons select inputs for output. Input
buttons 1, 2, 3, and 4 also select the switcher
mode.
Input LEDs identify the input selected for output.
Breakaway audio is indicated by a blinking
input LED. The first four input LEDs also
indicate audio gain settings.
Audio configuration/save button and LED enable
the user to view and/or change the current
audio level setting for each input.
Down (
) and Up () buttons and LEDs decrease
or increase the audio level for the selected input
and indicate the decrease and increase.
-dB/+dB LEDs indicate the polarity (- = attenuation,
+ = gain) of the audio level setting.
QS-1SW AV Series Switchers • Quick Start
Quick Start — SW AV Series Switchers, cont’d
Audio level indicators (Input 1 through Input 4
LEDs) each indicate a range of 6dB when lit:
Input 1 LED: off = 0 db to 5dB,
Input 1 LED: lit = 6dB to 11dB,
Input 1 and 2 LED:lit = 12dB to 17dB, and so on.
Mode button (video switchers) is used with the
Normal, Auto, or Executive button to select the
switching or executive mode. A secondary
function of the Input 1 button.
Normal button (video switchers) is used with the
Mode button to select normal mode. A
secondary function of the Input 2 button.
Auto(switch) button (video switchers) is used with
the Mode button to select autoswitching mode.
A secondary function of the Input 3 button.
Auto Switch Active LED (video switchers)
indicates that the switcher is in autoswitch
mode. When unlit, the switch is in normal
(manual) mode.
Executive Mode button (audio switchers) is used
with the Mode button to toggle executive mode
on and off. An unlabeled secondary function of
the Input 4 button.
Executive Mode LED (audio switchers) indicates
that the switcher is in executive mode. All front
panel operations except input selection are
locked.
Operation
Power
Plug in the switcher to apply power. The switcher
performs a self-test that blinks the LEDs. An errorfree self-test leaves the autoswitch mode, executive
mode, video and/or audio selection, input
selection, and the audio settings in the same
configuration as they were when power was
removed.
Audio gain and attenuation (audio switchers)
The audio level of each input can be adjusted
through a range of -18dB to +24dB.
Video (autoswitching) switchers must be in
normal (manual) mode.
1.(Video switchers only) Press the I/O button to
select either video and audio or audio only.
2. Press and release an input button to select an
input.
3. Press and hold the Audio Conf/Save button
until the Audio Conf/Save LED begins to blink,
then release the Audio Conf/Save button.
Each of the input 1 through 4 LEDs displays a
range of 6dB for the selected input when lit.
The +dB and -dB LEDs display the polarity (+
or -).
4. Press and release the
increase and decrease the audio level by 1dB or
press and hold the buttons to increase or
decrease the level by 3dB per second.
5. Press and hold the Audio Conf/Save button
until the Audio Conf/Save LED turns off to
save the gain value in memory and exit the
audio display and adjustment mode.
Switch mode (video switchers)
In autoswitch mode, the switcher selects the
highest-numbered input with sync signals present.
The front panel LEDs remain functional.
Audio breakaway is disabled.
Toggle autoswitch mode on and off as follows:
1. Press and hold the Mode (Input 1) button.
2. Press and release either the Auto (Input 3) or
Normal (Input 2) button. The Auto Switch
Mode Active LED lights or goes out.
and buttons to
Switching inputs
Video and audio switchers can switch audio with
video (audio follow) or either can be switched
separately (audio breakaway). Select an input as
follows:
Video switchers must be in normal (manual)
mode.
1.(Video switchers only) Press the I/O button as
necessary to select video, audio, or both.
2. Press the associated input button to select the
desired input.
3. Observe that the LED for the selected input
lights or blinks.
SW AV Series Switchers • Quick StartQS-2
3. Release the Mode button.
Executive mode (audio switchers)
Executive mode disables the front panel I/O
button, autoswitch or normal switch mode
selection, and all audio gain and attenuation
functions.
Toggle executive mode on and off as follows:
1. Press and hold the Mode (Input 1) button.
2. Press and release the Input 4 button The
Executive Mode LED changes state (lit to off or
off to lit).
All trademarks mentioned in this manual are the properties of their respective owners.
68-644-01 Rev. E
06 06
iiSW AV Series Switchers • Table of Contents
SW AV Series Switchers
Chapter One
1
Introduction
About the Switchers
Features
Introduction, cont’d
Introduction
About the Switchers
The Extron SW AV series (figure 1-1) is a family of video and/or audio switchers
with a wide array of input and output configurations, video formats, and audio
connections. The switchers route S-video (luminance (Y) and chrominance (C)),
and/or composite video, and/or unbalanced audio on RCA connectors, and/or
balanced or unbalanced audio on captive screw connectors. The table on the
following page lists the models and the combinations of inputs and outputs
available in the SW AV family.
Extron
SW 12SVA RCA
Switcher
CD Player
A
A
.3
1
1.3
V
0V
40
-2
0-24
0
0
10
1
z
z
H
0H
0
-6
-6
0
5
50
Extron
BBG 6 A
PLIFIER
M
A
TION
Blackburst/
TRIBU
DIS
Audio Generator
RS 232
A
B
T
T
U
SW 12SVA RCA
U
P
P
T
T
U
U
O
O
L R
L
R
12
11
11
10
10
9
S
8
T
U
P
IN
67
5
5
4
4
3
3
2
C
N
Y
S
1
S
L
T
U
P
T
U
O
R
A
B
11
12
S
9
T
U
P
IN
10
7
8
5
6
3
4
1
2
RS-232
Control
Stereo Audio
Projector
Figure 1-1 — Typical SW 12SVA RCA application
Features
Video switchers
S-video (SV) models
Inputs — S-video switchers input 4, 6, 8, or 12 luminance and chrominance signals
Outputs — The selected S-video input is split, buffered, and output on 2
Bandwidth — Bandwidth is 250 MHz (-3dB). This high bandwidth allows the
Composite video (V) models
Inputs — Composite video switchers input up to 4, 6, 8 or 12 composite video
Outputs — The selected composite video input is split, buffered, and output on 2
Monitor
DVDs
on 4-pin mini DIN connectors.
connectors.
•One S-video output on a 4-pin mini DIN connector.
•One encoded composite video output on a female BNC connector.
switchers to switch all of the quad standard video formats with no loss of
signal quality.
signals on female BNC connectors.
female BNC connectors.
SW AV Series Switcher • Introduction1-2
ledoM#traP
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oidua
ACR
oidua
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evitpaC
wercs
oidua
ACR
oidua
VA4WS12-484-064
ACRVA4WS13-484-064
AVS4WS22-484-06
ACRAVS4WS23-484-06
V6WS10-784-066
VA6WS12-784-066
ACRVA6WS13-784-066
VS6WS20-784-06
AVS6WS22-784-06
ACRAVS6WS23-784-06
A6WS02-784-06
ACRA6WS03-784-06
V8WS10-284-068
VA8WS12-284-068
ACRVA8WS13-284-068
VS8WS20-284-06
AVS8WS22-284-06
ACRAVS8WS23-284-06
A8WS02-284-06
ACRA8WS03-284-06
V21WS10-384-0621
VA21WS12-384-0621
ACRVA21WS13-384-0621
VS21WS20-384-06
AVS21WS22-384-06
ACRAVS21WS23-384-06
A21WS02-384-06
ACRA21WS03-384-06
oN
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Bandwidth — Bandwidth is 250 MHz (-3dB). This high bandwidth allows the
switchers to switch all of the quad standard video formats with no loss of
signal quality.
All video models
Input sensing — The switcher continuously monitors all inputs to sense when the
input signal is active or inactive. The switcher reports changes in the status
of each input (active to inactive or inactive to active) on the RS-232 port.
Autoswitching mode — When autoswitching is enabled, the switcher
automatically switches to the highest-numbered input with video sync pulses
present. If video is absent from all inputs, input 1 is selected.
1-3SW AV Series Switchers • Introduction
Introduction, cont’d
External sync input and output connectors — Allow the switcher to use a black
burst (genlock) signal to synchronize switching during the vertical interval.
This ensures glitch-free switching among multiple timed sources.
Audio switchers
Captive screw connector (A) models
Inputs — These switchers input 4, 6, 8, or 12 balanced or unbalanced stereo audio
signals, on 3.5 mm, 5-pole captive screw terminals.
Outputs — The selected audio input is split, buffered, and output as 2 balanced or
unbalanced audio signals, on 3.5 mm, 5-pole captive screw terminals.
RCA connector (A RCA) models
Inputs — These switchers input 4, 6, 8, or 12 unbalanced stereo audio signals on
left and right RCA connectors.
Outputs — The selected audio input is split, buffered, and output on 2 sets of
connectors.
•One balanced or unbalanced audio signal, on a 3.5 mm, 5-pole captive screw
terminal.
•One unbalanced stereo audio signal on left and right RCA connectors.
All audio models
Audio gain/attenuation — Users can set the input level of audio gain or
attenuation (-18 dB to +24 dB) via the RS-232 link or from the front panel.
Individual input audio levels can be adjusted so there are no noticeable
volume differences between sources (figure 1-2) and for the best headroom
and signal-to-noise ratio. This function also eliminates the need for separate
preamps or attenuators when used with professional (higher line level) and
consumer (lower line level) audio equipment.
dBVdBu
+8
+10
+5
+7
+2
+4
-1
+1
-3
-2
-7
-5
-10
-8
-14
-12
Low Audio
Output Level
dBVdBu
+8
+10
+5
+7
+4
+2
+1
-1
-3
-2
-7
-5
-10
-8
-14
-12
High Audio
Output Level
Consumer VCR
Audio
Inputs
EXECUTIVE
AUTO SWITCH
MODE
ACTIVE
Audio
Inputs
Pro CD Player
4
32
I/O
1
VIDEO
AUDIO
5
SW AV Series Switcher
SW SERIES
VIDEO / AUDIO SWITCHER
6
10
9
7
8
AUDIO
11
12
CONF/SAVE
No noticeable volume
differences between sources
dBVdBu
+8
+10
+5
+7
+2
+4
-1
+1
-4
-2
-7
-5
-10
-8
-14
-12
Output
Level
+dB
-dB
Audio System
Figure 1-2 — Audio gain and attenuation
SW AV Series Switcher • Introduction1-4
Audio follow — If the switcher is also a video model, audio can be switched with
the corresponding video input. Audio follow switching can be done via front
panel control or under RS-232 remote control.
Audio breakaway — If the switcher is also a video model, audio can be broken
away from its corresponding video input signal. Audio breakaway switching
can be done via front panel control or under RS-232 remote control.
Executive mode(front panel security lockout)— All switchers that route audio
have an executive mode that locks out the I/O (video/audio/video and
audio) selection button, toggling between autoswitch and normal mode, and
all audio gain and attenuation adjustments at the front panel. If a switcher is
installed in an open area, where operation by unauthorized personnel may be
a problem, the switcher can be placed in executive mode. When the front
panel is locked, a special button combination is required to unlock the front
panel controller before audio gain and attenuation can be adjusted locally.
When the front panel is locked out, audio gain and attenuation is still
available via the RS-232 link.
All switcher models
Operational flexibility — The operator can select the input, set the audio gain and
attenuation for each input, set the switch mode, and toggle executive mode
on and off using:
• Front panel controller — The SW AV series front panel controller supports
touch-of-a-button input selection, audio gain and attenuation control, switch
mode selection, and executive mode selection.
• RS-232 control — The switcher’s RS-232 link on the RS-232 (SW 8 and SW 12
models) or Remote (SW 4 and SW 6 models) port. The RS-232 link allows
remote control via a PC or control system.
Windows-based control program — Extron’s Windows-based control
°
program provides a versatile range of operational options with its
graphical interface and drag-and-drop/point-and-click operation.
Simple Instruction Set (SIS™) — The Simple Instruction Set program
°
lets a host computer control the switcher with simple commands.
Optional infrared remote control — The operator can also control the
°
switcher using Extron’s IR 102 Universal remote control kit
(part #70-224-01) connected to the RS-232 or Remote port.
• Contact closure (4-input and 6-input models only) — The operator can
remotely control the SW 4 and SW 6 switchers using a contact closure keypad
connected to the Remote port. The switcher’s contact closure link on the
Remote port.
Rack mount — Rack-mountable in any conventional 19" wide rack with the
included rack ears.
Power supply — Includes an internal 100 VAC to 240 VAC, 50/60 Hz, 15 watts,
autoswitchable power supply, which provides worldwide power
compatibility.
1-5SW AV Series Switchers • Introduction
Introduction, cont’d
SW AV Series Switcher • Introduction1-6
SW AV Series Switchers
Chapter Two
2
Installation
Installation Overview
Mounting the Switcher
Cabling and Rear Panel Views
Installation, cont’d
Installation
Installation Overview
To install an SW AV Series switcher, do the following:
Turn off the input and output devices, and unplug their power cords.
1
If desired, mount the switcher in a rack or under furniture (see Mounting the
2
Switcher below).
Connect the input and output devices to the switcher (see Cabling and Rear
3
Panel Views on page 2-3).
(SW 8 and SW 12 models) If desired, connect a computer or an RS-232
4
control system to the RS-232 connector (see Remote connection on page 2-6).
(SW 4 and SW 6 models) If desired, connect a computer, an RS-232 control
system, an IR device (such as the IR 102 remote control kit), or a contact
closure device (such as a KP 6 Keypad Remote Control) to the Remote
connector (see Remote connection on page 2-6).
If desired, connect a black burst (genlock) signal to the external sync
5
connectors (see External sync connection on page 2-6).
Plug the switcher and, if appropriate, the input devices and output devices
6
into a grounded AC source.
Turn on the input and output devices.
7
The image from each input device should appear on the output devices when
8
you switch from one input device to another. If this does not happen, double
check steps 3 through 5 and make adjustments as needed.
Mounting the Switcher
Tabletop use
For tabletop use, affix a self-adhesive rubber foot to each corner of the bottom of
the switcher.
Rack mounting the switcher
The SW AV switcher models are housed in rack-mountable, 1U high, 17" wide
metal enclosures. The appropriate rack mount kit is included with each switcher.
Rack mount the switcher as follows:
1.If feet were previously installed on the bottom of the switcher, remove them.
2.Attach the rack mount brackets to the switcher with the eight #8 machine
screws provided (figure 2-1).
3.Insert the switcher into the rack, align the holes in the mounting bracket with
those of the rack.
4.Secure the switcher to the rack using the supplied machine screws.
Furniture mounting the switcher
The SW AV switcher models can be mounted under a table or other horizontal
surface with an optional Extron MBD 129 Through-Desk Mount Kit, part #70-077-02.
1.Secure the optional table/wall mounting brackets to the switcher with the
eight machine screws provided in the mounting kit (figure 2-1).
2.Hold the switcher with attached brackets against the underside of the desk or
other furniture. Mark the location of holes for screws on the underside of the
desk.
SW AV Series Switchers • Installation2-2
Mounting Screws (2 Plcs)
Each Side
Drill pilot holes —
3/32” (2.4mm) diam.
1/4” (6.3 mm) deep
Rack-mount
Bracket
2
3
2
S
R
UT A
T B
UTP
O
TPU
U
O
L R
L
or
#8 Screw (4 Plcs)
Each Side
Table/
Wall-mount
Bracket
TS
INPU
7
6
5
5
4
4
3
3
L
2
SYNC
TS
1
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LISTED
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9
A
7
PUTS
B
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12
5
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10
8
1
6
100-240V 0.3A
4
2
33- 752- 01 REV. A
z
50-60H
R
SW 12SVA RCA
11
21
10
11
10
9
8
Figure 2-1 — Mounting the switcher
3.Drill 1/4" (6.4 mm) deep, 3/32" (2 mm) diameter pilot holes in the table or
desk at the marked screw locations from the underside/inside (concealed
side) of the furniture, where the switcher will be located.
4.Insert the four wood screws into the pilot holes. Fasten each screw into the
installation surface until just less than 1/4" of the screw head protrudes.
5.Align the installed screws with the slots in the mounting brackets, and place
the switcher against the surface, with the screws through the bracket slots.
6.Slide the switcher slightly forward or back, then tighten all four screws to
fasten it in place.
Cabling and Rear Panel Views
All connectors are on the rear panel. The switcher can be connected to up to 12
S-video, composite video and/or stereo audio devices, depending on the model.
All switcher models output two parallel video and/or audio outputs. S-video
models encode one of the two video outputs as composite video. RCA audio
models output one of the stereo audio outputs, unbalanced or balanced, on captive
screw connectors and the other audio output, unbalanced, on RCA connectors.
Figure 2-2 shows an SW 4AV composite video and audio switcher. Figure 2-3
shows an SW 12SVA RCA S-video and audio switcher. All of the switchers are
housed in the same 1U enclosures, but have more or fewer input connectors to
accommodate the different configurations they provide. The two switchers shown
have all of the connector types that are available in the SW AV product family
covered in this manual.
Some devices, such as VCRs, can be connected to both video input and audio input
connectors of the switcher. Others, such as tape players or CD players, can be
connected only to the audio input connectors. An audio device and a separate
video device can share an input, although the switcher is capable of switching
video and audio separately (audio breakaway).
2-3SW AV Series Switchers • Installation
Installation, cont’d
1
1239311
10
57
Figure 2-2 — SW 4AV composite video switcher with audio
2
10
6
Figure 2-3 — SW 12SVA RCA S-video switcher with audio on RCA
connectors
Video input and output connections (video models only)
Composite video inputs (composite video (V) switchers only) — For each
1
input, connect a composite video source to one of these BNC connectors.
781249311
S-video inputs (S-video (SV) switchers only) — For each input, connect an
2
S-video source to one of these 4-pin mini DIN connectors.
Composite video outputs (all video switcher models) — Connect composite
3
video displays or other devices to these BNC connectors for each composite
video output.
or other device to this 4-pin mini DIN connector for the S-video output.
Audio input and output connections (audio models only)
The audio level for each input can be individually set, via the front panel or RS-232,
to ensure that the level on the output does not vary from input to input. See
chapter 3, Operation, and chapter 4, Remote Control for details.
By default, the audio follows the video switch. Audio breakaway, which is
commanded via the front panel (see chapter 3) or under RS-232 control via the SIS
or Windows-based control program, allows you to select from any one of the audio
input sources. See chapter 3, Operation, and chapter 4, Remote Control for details.
CAUTION
Balanced or unbalanced audio input connections (captive screw connector
5
The captive screw connector can easily be inadvertently plugged partially
into one receptacle and partially into an adjacent receptacle. This
misconnection could damage the audio output circuits. Ensure that the
captive screw connector is plugged into the desired input or output.
audio (A) models only) — Each input has a 3.5 mm, 5-pole
captive screw connector for balanced or unbalanced stereo audio
input. Connectors are included with each SW AV Series
switcher, but you must supply the audio cable. See figure 2-4 to
wire a connector for the appropriate input type and impedance
level. High impedance is generally over 800 ohms.
SW AV Series Switchers • Installation2-4
Figure 2-4 shows three methods of wiring the captive screw audio connectors
for input and figure 2-5 shows two methods of wiring the connectors for
output. A mono audio connector consists of the tip and sleeve. A stereo audio
connector consists of the tip, ring and sleeve. If wiring a captive screw
connector from an existing unbalanced audio cable, the white insulated wire is
typically the left channel (tip) and the red insulated wire is typically the right
channel (sleeve). There is no reliable standard for existing balanced audio
cables.
Tip
Ring
Sleeve (s)
Tip
Ring
Balanced Stereo Input
(high impedance)
0.2” (5 mm) max.
Do not tin the wires!
Tip
Sleeve
Tip
Sleeve
Unbalanced Stereo Input
(high impedance)
LR
Figure 2-4 — Captive screw connector wiring for audio inputs
The length of exposed wires is critical. The ideal length is 0.2” (5 mm).
• If the stripped section of wire is longer than 0.2”, the exposed wires may
touch, causing a short cir
cuit between them.
• If the stripped section of wire is shorter than 0.2”, wires can be easily
pulled out even if tightly fastened by the captive screws.
Each input has a pair (left and right) of RCA connectors for unbalanced stereo
audio input.
LR
Balanced or unbalanced audio output connectors (all audio models) —
7
These 3.5 mm, 5-pole captive screw connectors output the selected
unamplified, line level audio. Connect audio devices, such as an audio
amplifier or powered speakers to these connectors. See figure 2-5 to properly
wire an output connector.
Tip
Ring
Tip
Ring
Balanced Stereo Output
0.2” (5 mm) max.
Do not tin the wires!
Tip
NO GROUND HERE.
Sleeve(s)
Tip
NO GROUND HERE.
Unbalanced Stereo Output
LR
Left
Right
Figure 2-5 — Captive screw connector wiring for audio output
CAUTION
Connect the sleeve to ground (Gnd). Connecting the sleeve to a negative
(-) terminal will damage the audio output circuits.
The length of exposed wires is critical. The ideal length is 0.2” (5 mm).
•If the stripped section of wire is longer than 0.2”, the exposed wires may
touch, causing a short circuit between them.
•If the stripped section of wire is shorter than 0.2”, wires can be easily
pulled out even if tightly fastened by the captive screws.
The switcher has a pair (left and right) of RCA connectors for an unbalanced
stereo audio output.
Remote connection
RS-232/Remote connector — Connect a host device, such as a computer or
9
touch panel control, or an IR remote control or a remote contact closure device
(SW 4 and SW 6 models only) to the switcher via this 9-pin D connector
(figure 2-6) for remote control of the switcher.
For RS-232 control and IR control, use a control cable with only pins 2, 3, and
5 connected. Otherwise, either cut the wires to the other pins in hard-shelled
connectors or remove the unneeded pins from molded plugs. See chapter 4,
Remote Control, for definitions of the SIS commands and details on how to
install and use the control software.
For contact closure, use a control cable with pins 2 and 3 NOT connected.
Otherwise, either cut the wires to these pins in hard-shelled connectors or
remove these pins from molded plugs. See chapter 4, Remote Control, for
information on how to make a remote contact closure device.
51
Female
1
6
The cable used to connect the RS-232/Remote port to a computer, control
system, contact closure device, or IR control kit may need to be modified by
removing pins or cutting wires. If unneeded pins are connected, the switcher
may hang up.
When the switcher switches between inputs, the resulting change in image should
be glitch-free, or clean. Video models of the SW AV Series switcher can use an
external signal to synchronize switching during the vertical interval. Without the
external sync locking feature, switching between inputs can result in a brief rolling
(sync loss) or a brief change in the picture size.
Sync In connector — Connect an external genlock signal to this BNC
10
connection for genlocking the video signal in broadcast or other sync-critical
applications.
Sync Out connector — Connect any downstream equipment that requires
11
genlocking to this BNC connector to route the external sync signal throughout
the system in broadcast or other sync-critical applications.
Figure 2-7 shows a basic external sync configuration. The Ext Sync In connector
receives a timing signal. The Out connector allows the signal to be passed on to
another video device, if required.
SW AV Series Switchers • Installation2-6
OUT
Timing Source
OUTPUTS SYNC
IN
A
B
OUT
1
LR
INPUTS
2
LR
3
LR
4
LR
SW 4AV Rear Panel
To next device
or terminate.
IN
Figure 2-7 — Simple external sync connection example
Figure 2-8 shows another configuration, in which the timing source passes through
three video cameras and a video scan converter before connecting to the switcher.
This type of video camera is capable of synchronizing with the external timing
source for video editing applications.
If no external sync timing source is connected to the switcher, switching occurs
immediately after a front panel, RS-232, IR, or contact closure switch command.
Sync Timing Source
(black burst generator)
Video CameraVideo Camera
Figure 2-8 — Multiple device external sync connection example
Power connection
AC power connector — Plug a standard IEC power cord into this connector
12
to connect the switcher to a 100 VAC to 240 VAC, 50 or 60 Hz power source.
Monitor
SW 12AV RCA
VCR
S
T
U
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IN
7
7
5
6
6
5
4
5
4
5
3
4
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SW 12AV RCA
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12
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11
11
10
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9
9
8
8
VGA Input
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50/60 Hz
Video Camera
2-7SW AV Series Switchers • Installation
Installation, cont’d
SW AV Series Switchers • Installation2-8
SW AV Series Switchers
Chapter Three
3
Operation
Front Panel Controls and Indicators
Front Panel Operations
Optimizing the Audio (Audio Switchers)
Troubleshooting — If No Image Appears
Operation, cont’d
Operation
Front Panel Controls and Indicators
The family of SW AV switchers have a wide variety of input buttons and other
controls and LEDs that vary with the number of inputs and whether the switcher
has video, audio, or both. Not all switchers have every control or indicator
described in this chapter. The table at the bottom of this page identifies the control
and indicator groups that are present on each switcher in the SW AV Series.
In the following descriptions, you will find the following terms:
•Video switcher — Switches composite video or S-video. May or may not
include audio switching.
•Video-only switcher — Switches composite video or S-video only. No audio
•Audio switcher — Switches audio on captive screw or RCA connectors. May
SW SERIES
VIDEO / AUDIO SWITCHER
AUDIO
CONF/SAVE
EXECUTIVE
MODE
8
7
6
5
4
32
1
-dB
+dB
AUTO SWITCH
ACTIVE
VIDEO
AUDIO
I/O
15
498
3
675
14
SW SERIES
VIDEO / AUDIO SWITCHER
32
1
AUTO SWITCH
ACTIVE
6
5
4
AUTO SWITCH
13
49
3
101211
SW SERIES
VIDEO / AUDIO SWITCHER
AUDIO
CONF/SAVE
EXECUTIVE
MODE
12
11
10
9
8
7
6
5
4
32
1
VIDEO
AUDIO
I/O
-dB
+dB
AUTO SWITCH
ACTIVE
498
3
6715
2
13 1510121411
or may not include video switching.
•Audio-only switcher — Switches audio only on captive screw or RCA
connectors. No video switching.
•Video AND audio switcher — Switches both composite video or S-video
AND audio on captive screw or RCA connectors.
Figure 3-1 shows the front panel of an 8-input audio-only switcher. Figure 3-2
shows the front panel of a 6-input video-only switcher. Figure 3-3 shows the front
panel of a 12-input video and audio switcher. These three examples show all of the
combinations that you may encounter with your particular switcher. Many of the
input buttons and LEDs on figure 3-1 through figure 3-3 have dual functions. Dual
n
function controls have two callouts (
numbers); each callout is related to its
function in the following pages.
Figure 3-1 — SW 8A front panel
Figure 3-2 — SW 6SV front panel
Figure 3-3 — SW 12VA RCA front panel
3-3SW AV Series Switchers • Operation
Operation, cont’d
Audio/Video selection control and indicators (audio switchers)
I/O button — The I/O button selects video, audio, or video and audio for
1
input selection.
Video and Audio LEDs — The Video and Audio LEDs indicate whether
2
video, audio, or video and audio will be selected using the Input buttons (
and indicated by the Input LEDs (
Pressing the I/O button advances through a cycle of video and/or audio
selection as follows: {default} video and audio, {press} video only, {press}
audio only, {press} video and audio, and so on (figure 3-4).
This button has no function on audio-only switchers.
4
).
The Audio LED is always lit on audio-only switchers.
3
)
VIDEO
AUDIO
Default
(Video &
audio)
I/O
Press
VIDEO
AUDIO
Video
only
I/O
Press
Figure 3-4 — Video and/or audio selection cycle
Input selection controls and indicators
Input 1 through 4, 6, 8, or 12 buttons — Each Input button selects the
3
associated input for output. A more detailed explanation of the input
selection function is included in Front panel operations, beginning on page 3-6.
On video switchers, the Input 1, Input 2, and Input 3 buttons are also used to
toggle autoswitch mode on and off. See Autoswitch mode controls and indicator(video switchers) on page 3-5 and items
On audio models, the Input 1 and Input 4 buttons are also used to toggle
executive mode on and off. See Autoswitch mode controls and indicator (audioswitcher) on page 3-5 and items
On 12-input audio switchers, the Input 11 and Input 12 buttons are also used
to decrease and increase the amount of audio gain for a selected input. See
Audio controls and indicator (audio switcher) on page 3-5 and items
10
and 14.
10, 11
VIDEO
AUDIO
Audio
only
, and 12.
I/O
VIDEO
AUDIO
Press
LED key: = on, = off
Video &
audio
6
and 7.
Input 1 through 4, 6, 8, or 12 LEDs — The input LEDs identify the selected
4
input.
On models that switch both video and audio, if audio is broken away, the
selected video input is indicated by a steadily lit input LED and the selected
audio input is indicated by a blinking input LED.
On audio switchers, the input LEDs also indicate the audio level (attenuation
(-dB) or gain (+dB)) of the selected input. See Audio controls and indicators(audio switchers) on page 3-5.
SW AV Series Switchers • Operation3-4
Audio controls and indicators (audio switchers)
Audio switchers have audio gain and attenuation adjustments.
Audio configuration/save button and LED — The Audio button and LED
5
enable the user to view and/or change the current audio level setting for each
input. See Adjusting audio gain and attenuation (audio switchers) in this chapter.
Down () button and LED — The button is used to decrease the audio
6
level for a selected input. Press and release the button to decrease the audio
level or press and hold the button to decrease the audio level at a rate of 3 dB
per second until the button is released.
The LED flashes to indicate each 1 dB decrease in the audio level. See
Adjusting audio gain and attenuation (audio switchers) in this chapter.
On 12-input audio switchers, this button and LED are secondary functions of
the Input 11 button and LED.
Up () button and LED — The button is used to increase the audio level
7
for a selected input. Press and release the button to increase the audio level or
press and hold the button to increase the audio level at a rate of 3 dB per
second until the button is released.
The LED flashes to indicate each 1 dB increase in the audio level. See
Adjusting audio gain and attenuation (audio switchers) in this chapter.
On 12-input audio switchers, this button and LED are secondary functions of
the Input 12 button and LED.
-dB/+dB LEDs — The -dB and +dB LEDs indicate the polarity of the audio
8
level setting. See Adjusting audio gain and attenuation (audio switchers) in this
chapter.
Audio level indicators — The Input 1 through Input 4 LEDs each indicate a
9
range of 6 dB when lit (Input 1 LED: off = 0 dB to 5 dB, Input 1 LED: lit = 6 dB
to 11 dB, Input 1 and 2 LED: lit = 12 dB to 17 dB, and so on). See Adjustingaudio gain and attenuation (audio switchers) in this chapter.
Autoswitch mode controls and indicator (video switchers)
Video switchers support autoswitch mode. When autoswitch mode is enabled, the
switcher continuously monitors all inputs and automatically switches to the
highest-numbered input with video sync pulses present. If video is absent from all
inputs, input 1 is selected.
Mode button — The Mode button is used with the Normal button or the Auto
10
button to select the switching mode. See Switch mode in this chapter.
This button is a secondary function of the Input 1 button.
Normal button — The Normal button is used with the Mode button to select
11
normal mode. See Switch mode in this chapter.
This button is a secondary function of the Input 2 button.
When you change from autoswitch to normal (manual) mode, the last input
selected in autoswitch mode remains selected until you manually select a
different input.
Auto(switch) button — The Auto button is used with the Mode button to
12
select autoswitching mode. See Switch mode in this chapter.
This button is a secondary function of the Input 3 button.
3-5SW AV Series Switchers • Operation
Operation, cont’d
Auto Switch Active LED — When lit, the Auto Switch Active LED indicates
13
that the switcher is in autoswitch mode. When unlit, the switch is in normal
(manual) mode. See Switch mode in this chapter.
Executive mode controls and indicator
Audio switchers have audio gain and attenuation adjustments. In executive mode,
front panel adjustment of the audio level is locked. The level cannot be adjusted
from the front panel until the panel is unlocked. See Executive mode in this chapter.
Audio gain and attenuation adjustments are still available via the RS-232 link when
the switcher is in executive mode.
Mode button — The Mode button is used with the Executive mode button to
10
toggle executive mode on and off. See Executive mode (front panel security
lockout) in this chapter.
This button is a secondary function of the Input 1 button.
Executive Mode button (unlabeled) — The Executive mode button is an
14
unlabeled secondary function of the Input 4 button. Executive mode is used
with the Mode button to toggle executive mode on and off. See Executivemode (front panel security lockout) in this chapter.
Executive Mode LED — The Executive Mode LED indicates that the switcher
15
is in executive mode, and that the front panel I/O button and all audio gain
and attenuation adjustments are locked.
This LED will never light on audio-only switchers.
Front Panel Operations
The following paragraphs detail the power up process and provide sample
procedures for switching inputs, viewing and adjusting the audio level, changing
between normal and autoswitch mode, and toggling executive mode on and off.
Power
Plug in the switcher. On all switcher models, power is automatically applied when
the power cord is connected to an AC source. When AC power is applied, the
switcher performs a self-test that blinks the front panel LEDs during the test. An
error-free power up self-test sequence leaves the Auto Switch Active, Executive
Mode, Video, Audio, and Input LEDs on or off in the same configuration as they
were when power was last removed.
If an error occurs during the self-test, the switcher locks up and will not operate. If
your switcher locks up on power-up, call the Extron S
Hotline.
Plug in all system components and turn on the input devices (such as DVD players,
laserdisc players, VCRs, and DSS receivers) and the output devices. Set the input
devices to output video using each device’s own operating instructions. Select an
input. The image should appear on the screen. If no image appears, see
Troubleshooting — If No Image Appears, in this chapter.
Switching inputs
An input can be selected for output using the front panel buttons. In switchers
with both video and audio, the audio input can switch with the video input (audio
follow) or either can be switched separately (audio breakaway). Select an input as
follows:
3
Sales & Technical Support
SW AV Series Switchers • Operation3-6
1.(Video AND audio switchers) Select to switch video, audio, or both by
1
I/O
4
I/O
pressing the I/O button.
2.Select the desired input by pressing the associated input button.
3.Observe that the LED for the selected input lights or blinks (audio breakaway
(Video AND audio switchers)).
1.Video (autoswitching) models must be in normal (manual) mode.
2.(Video AND audio switchers) If, after you have selected video and
audio by pressing the I/O button, the Audio LED blinks and the Video
LED is on, the LED s indicate audio breakaway; the selected audio input
is not the same as the video input.
An input can also be selected using an RS-232 device or a third party contact
closure device (4-input and 6-input models only). See chapter 4, Remote Control.
Example 1: Select an input
See figure 3-5 and the following steps for an example in which the input 1 video
and audio is selected for output.
Video switchers must be in normal (manual) mode.
(Video AND audio switchers) To select video and audio to switch, if
A
necessary, press and release the I/O button until the Video and Audio LEDs
light.
LED key: = off, = on
6
7
5
8
Press
A
I/O
4
I/O
VIDEO
AUDIO
VIDEO
AUDIO
Press
1
1
32
B
Figure 3-5 — Example 1: Selecting video and audio input 1
Press and release the input 1 button. The input 1 LED lights. The video and
B
audio on input 1 are now selected for output.
Example 2: Select a video input only (video AND audio switcher)
See figure 3-6 and the following steps for an example in which the input 4 video
only is selected for output (audio breakaway).
Press
A
I/O
LED key: = off, = on, = blinking
4
I/O
VIDEO
AUDIO
VIDEO
AUDIO
1
B
32
Press
B
4
B
6
7
5
8
Figure 3-6 — Example 2: Selecting video input 4
3-7SW AV Series Switchers • Operation
Operation, cont’d
2
I/O
To select video only for the switch, if necessary, press and release the I/O
A
buttons until the Video LED lights and the Audio LED is off.
Press and release the input 4 button. The input 4 LED lights. The video on
B
input 4 is now selected for output. If the steps in Example 1 have been
completed, the input 1 LED blinks. The current configuration is now video
input 4 and audio input 1 selected for output.
Example 3: Select an audio input only (video AND audio switcher)
See figure 3-7 and the following steps for an example in which the input 2 audio
only is selected for output (audio breakaway).
Video switchers must be in normal (manual) mode.
Press
A
I/O
LED key: = off, = on, = blinking
4
I/O
VIDEO
AUDIO
VIDEO
AUDIO
1
Press
B
32
2
B
B
6
7
5
8
Figure 3-7 — Example 3: Selecting audio input 2
Video switchers must be in normal (manual) mode.
To select audio only for the tie, if necessary, press and release the Video and
A
Audio buttons until the Video LED is off and the Audio LED lights.
Press and release the input 2 button. The input 2 LED blinks. The audio on
B
input 2 is now selected for output. If the steps in Example 1 and 2 have been
completed, the input 4 LED lights steadily. The current configuration is now
video input 4 and audio input 2 selected for output.
Adjusting audio gain and attenuation (audio switchers)
Audio switchers have audio gain and attenuation adjustments. The audio level of
each input can be adjusted through a range of -18 dB to +24 dB to ensure that there
is no noticeable volume difference among sources and to eliminate the need for
separate preamps or attenuators when used with professional (higher line level)
and consumer (lower line level) audio equipment.
The audio level can be adjusted from the front panel or by using Extron’s
Windows-based control program.
Video switchers must be in normal mode.
1.(Video AND audio switcher) Select to switch both video and audio or audio
only by pressing the I/O button.
2.Press and release an input button to select an input.
3.Press and hold the Audio Conf/Save button until the Conf/Save LED begins
to blink. Release the Conf/Save button. The approximate audio level for the
selected input is displayed in the input 1 through 4 LEDs and the polarity (+
or -) is displayed by the +dB and -dB LEDs.
Each input 1 through 4 LED indicates a range of 6 dB when lit (Input 1 LED:
off = 0 db to 5 dB, Input 1 LED: lit = 6 dB to 11 dB, Input 1 and 2 LED: lit = 12
dB to 17 dB, and so on). By noting these LEDs’ displays and counting the
SW AV Series Switchers • Operation3-8
number of 1 dB steps you increment or decrement the audio level (see step 4),
you can determine the exact gain or attenuation setting.
The +dB LED on indicates a positive (gain) level. The -dB LED on indicates a
negative (attenuation) level. Both LEDs on indicate 0 dB.
4.Press and release the
level by 1 dB or press and hold the buttons to increase or decrease the level by
3 dB per second. The and LEDs flash to indicate each 1 dB level change.
Each time you press and release the or button, wait for the or
LED to flash before pushing the button again. Pressing the button early may
not increment or decrement the audio level.
5.Press and hold the Audio Conf/Save button until the Audio Conf/Save LED
turns off to save the gain value in memory and exit the audio display and
adjustment mode.
1.There is one audio level setting per input. The setting is shared by the left
and right audio inputs.
2.The audio level settings are stored in non-volatile memory. When power
is removed and restored, the audio level settings are retained.
Example 4: Adjust the audio level
See figure 3-8 and figure 3-9 (on page 3-10) for an example in which the audio level
is adjusted.
I/O
Press
A
VIDEO
AUDIO
Press
B
and buttons to increase and decrease the audio
LED key: = off, = on, = blinking
B
Press
and hold
B
CONF/SAVE
C
4
I/O
VIDEO
AUDIO
1
32
Indicates +6 dB to +11 dB range
D
6
5
Figure 3-8 — Example 4: Viewing the audio level
(Video AND audio switchers) Press and release the I/O button as necessary
A
to select audio (or audio and video). The audio LED lights in either case.
Press and release an input button to select an input. The associated input
B
LED lights.
Press and hold the Audio Conf/Save button until the Audio Conf/Save LED
C
starts blinking.
The gain or attenuation value is displayed in the input 1 through 4 LEDs. In
D
figure 3-8, the LED readout shows a range of +6 dB to +11 dB.
D
AUDIO
CONF/SAVE
+dB
-dB
7
8
D
3-9SW AV Series Switchers • Operation
Operation, cont’d
If the +dB and -dB LED are both lit they indicate 0 dB. Otherwise, you can
determine the exact gain or attenuation using the following procedure.
1.If one or more input LEDs are lit AND the +dB LED is lit, press and
2.Return to the original audio level setting by pressing and releasing the
release the
button repeatedly until the highest-numbered lit input
LED goes out. Count the button presses. In Example 4, assume a value
of +8 dB. It will take three presses of the
button for the Input 1 LED
to go out.
If one or more input LEDs are lit AND the -dB LED is lit, press and
release the
button repeatedly until the highest-numbered lit input
LED goes out. Count the button presses.
If the +dB LED is lit and NO input LEDs are lit, press and release the
button repeatedly until the +dB and -dB LED are both lit, indicating 0
dB. Count the button presses.
If the -dB LED is lit and NO input LEDs are lit, press and release the
button repeatedly until the +dB and -dB LED are both lit, indicating 0
dB. Count the button presses.
or button (the opposite of the button you pushed in step 1) the
same number of steps you pushed the opposite arrow button in step 1.In Example 4, this means pushing the
button three times.
3.Add the dB value indicated by the highest-numbered lit input LED (no
input LEDs lit = 0 dB) and either:
The number of button presses from 0 dB or,
The number of button presses from when the highest-numbered input
LED lit. In Example 4, Input 1 LED (6 dB) + 2 presses (2 dB) = 8 dB.
4.The lit +dB or -dB LED indicates the gain (+) or attenuation (-).
Press and release the button several times to decrease the audio level
E
displayed in the input LEDs by 1 dB per button push. The
LED flashes
each time the button is pressed. Note the input LED, +dB LED, and -dB LED
changes that occur each time the
shows the result of pressing the
button is pressed and released. Figure 3-9
button a total of nine times to change the
value to -1 dB. Note that the +dB LED has turned off and that the -dB LED is
on to indicate a negative level.
Press
and hold
Press
(9 times)
LED key: = off, = on, = 1 blink
4
1
32
Indicates 0 dB to -6 dB range
E
B1
6
5
7
E
8
B1
(9 times)
CONF/SAVE
AUDIO
CONF/SAVE
EE
F
F
+dB
-dB
Figure 3-9 — Example 4, step E: Adjusting the audio level
Press and hold the Audio Conf/Save button until the Audio LED goes off.
F
The input LEDs stop displaying the audio level range, the +dB and -dB LEDs
go off, and the selected input LED lights.
SW AV Series Switchers • Operation3-10
Audio level reset — single input
To reset the audio level for an input to 0 dB, select the input:
Video switchers must be in normal mode.
1.(Video AND audio switcher) Select to switch both video and audio or audio
only by pressing the I/O button.
2.Press and release an input button to select an input.
3.Press and hold the Audio Conf/Save button until the Conf/Save LED begins
to blink. Release the button.
4.Press and release the
5.Press and hold the Audio Conf/Save button again until the Conf/Save LED
turns off to save the reset level in memory and exit the audio display and
adjustment mode.
and buttons simultaneously.
Audio level reset — all inputs
Reset the audio level to 0 dB for all inputs as follows:
1.Press and hold the Audio Conf/Save button for approximately 10 seconds
until all Input LEDs light for approximately 1 second and then turn off.
Release the Conf/Save button.
2.Press and hold the Audio Conf/Save button again until the Conf/Save LED
turns off to save the reset level in memory and exit the audio display and
adjustment mode.
Switch mode
Video switchers support autoswitch mode. In autoswitch mode, the switcher
automatically switches to the highest-numbered input with video sync signals
present. Input selection, by the front panel buttons or the RS-232/Remote port, is
blocked while in autoswitch mode. However, the front panel LEDs remain
functional and the Input 1 through Input 3 buttons can be used to view or change
the mode.
Turn autoswitch mode on as follows:
1.Press and hold the Mode (Input 1) button.
2.Press and release the Auto (Input 3) button. The Auto Switch Active LED
lights.
3.Release the Mode button.
Turn autoswitch mode off as follows:
1.Press and hold the Mode (Input 1) button.
2.Press and release the Normal (Input 2) button. The Auto Switch Active LED
goes off.
3.Release the Mode button.
The switcher must be in normal (manual) mode for contact closure to work.
Audio breakaway is disabled in autoswitch mode; audio always follows video.
When you change from autoswitch to normal (manual) mode, the last input
selected in autoswitch mode remains selected until you manually select a
different input.
3-11SW AV Series Switchers • Operation
Operation, cont’d
Executive mode (front panel security lockout)
Audio switchers have an executive mode that limits the operation of the SW AV
switcher from the front panel. When the switcher is in executive mode, the I/O
button (video/audio/video and audio selection), toggling between autoswitch and
normal mode, and all of the front panel audio gain and attenuation functions are
disabled.
Toggle executive mode on and off as follows:
1.Press and hold the Mode (Input 1) button.
2.Press and release the Input 4 button. The Executive Mode LED changes state.
If executive mode was off, the LED turns on to indicate that the switcher has
entered executive mode.
If executive mode was on, the LED turns off to indicate that the switcher has
left executive mode.
3.Release the Mode button.
Memory
Audio and mode settings are saved in nonvolatile memory. When the switcher is
powered off, the settings are retained. When the switcher is powered on, the saved
memory settings are active. The selected input is not a saved value; when the
switcher is powered on it, defaults to input 1.
If a video switcher is powered off in auto mode, it automatically switches to the
highest-numbered input with video sync pulses present when it is powered
back on. If no input has video present, all input select LEDs are off (only the
Power LED is on, if equipped).
Optimizing the Audio (Audio Switchers)
Each individual input audio level can be adjusted within a range of -18 dB to +24
dB, so there are no noticeable volume differences between sources and for the best
headroom and signal-to-noise ratio. Adjust the audio gain and attenuation as
follows:
1.Connect audio sources to all desired inputs and connect the audio outputs to
output devices such as audio players. See Audio input and output connections(audio models only), in chapter 2, Installation. For best results, wire all of the
inputs and the outputs unbalanced.
2.Power on the audio sources, the switcher, and the audio players.
3.Switch among the inputs (see Switching inputs, in this chapter), listening to the
audio with a critical ear or measuring the output audio level with test
equipment, such as a VU meter.
4.As necessary, adjust the audio level of each input (see Adjusting audio gain and
attenuation (audio switchers), in this chapter) so that the approximate output
level is the same for all selected inputs.
SW AV Series Switchers • Operation3-12
Troubleshooting — If no Image Appears
1.Ensure that all devices are plugged in and powered on. The switcher is
receiving power if one of the input LEDs is lit.
2.Ensure an active input is selected on the switcher or that the switcher is in
autoswitch mode.
3.Ensure that the proper signal format is supplied.
4.Check the cabling and make corrections as necessary.
5.Call the Extron S
3
Sales & Technical Support Hotline if necessary.
3-13SW AV Series Switchers • Operation
Operation, cont’d
SW AV Series Switchers • Operation3-14
SW AV Series Switchers
Chapter Four
4
Remote Control
Simple Instruction Set Control
Windows-Based Program Control
Contact Closure Control (SW4 and SW6 Models Only)
Infrared Remote Control (SW4 and SW6 Models Only)
Remote Control, cont’d
Remote Control
The SW AV Series switchers can be remotely controlled via the switcher’s rear
panel Remote (SW 4 and SW 6 models) or RS-232 (SW 8 or SW 12 models)
connector (Figure 4-1). Remote control devices can be:
•A host device such as a computer or third-party control system
•A device such as an Extron IR 102 Universal remote control kit
•A contact closure device such as an Extron KP 6 Keypad Control
Two or three remote control methods are available:
•Extron’s Simple Instruction Set
•Extron’s Windows-based control program
•SWS 4 and SW 6 models only, contact closure
The cable used to connect the RS-232/Remote port to a computer, control
system, contact closure device, or IR control kit may need to be modified by
removing pins or cutting wires. If unneeded pins are connected, the switcher
may hang up.
For RS-232 control and IR control, use a control cable with only pins 2, 3, and 5
connected. Otherwise, either cut the wires to the other pins in hard-shelled
connectors or remove the unneeded pins from molded plugs. See chapter 4, RemoteControl, for definitions of the SIS commands and details on how to install and use
the control software.
For contact closure, use a control cable with pins 2 and 3 not connected.
Otherwise, either cut the wires to these pins in hard-shelled connectors or remove
these pins from molded plugs. See chapter 4, Remote Control, for information on
how to make a remote contact closure device.
Simple Instruction Set Control
Host-to-switcher communications
SIS commands consist of one or more characters per field. No special characters
are required to begin or end a command character sequence. When a command is
valid, the switcher executes the command and sends a response to the host device.
All responses from the switcher to the host end with a carriage return and a line
feed (CR/LF = ), which signals the end of the response character string. A string
is one or more characters.
SW AV Series Switchers • Remote Control4-2
Switcher-initiated messages
When a local event occurs, such as a front panel operation, loss or restoration of an
input signal, or an error condition, the switcher responds by sending a message to
the host. The switcher-initiated messages are listed below:
(C) Copyright 2002, Extron Electronics, SW AV Series, Vx.xx
Cn
The switcher issues the copyright message and input selected message when it first
powers on. Vx.xx is the firmware version number. Cn identifies the currently
selected input, where n is the input number (input 1 is the power-up default in
normal mode). The switcher also sends the Cn
input is changed using the front panel buttons.
Sig nnnnnn
A video switcher initiates this message when there is a change in the status of a
video input. Each n indicates an input (1 through last, from left to right). n = 1
indicates video signal present, n = 0 indicates video signal not preset. There are as
many ns in the switcher-initiated message as the maximum number of inputs for
the models (4, 6, 8, or 12).
Reconfig
The switcher initiates the Reconfig message when there is a change in an audio
model’s audio gain setting.
Error responses
When the switcher receives a valid SIS command, it executes the command and
sends a response to the host device. If the switcher is unable to execute the
command because the command is invalid or it contains invalid parameters, the
switcher returns an error response to the host. The error response codes are:
E01
E10
E13
E14
– Invalid input channel number (out of range)
– Invalid command
– Invalid parameter (out of range)
– Illegal command for this configuration
message whenever the selected
Timeout
Pauses of 10 seconds or longer between command ASCII characters result in a
timeout. The command operation is aborted with no other indication.
Using the command/response table
The command/response
table is on the next page.
Symbols are used throughout
the table to represent
variables in the command/
response fields. Command
and response examples are
shown throughout the table.
The ASCII to HEX
conversion table at right is
for use with the command/
response table.
ASCII to HEX Conversion Table
Space
4-3SW AV Series Switchers • Remote Control
Remote Control, cont’d
X3
With the exception of the audio gain and attenuation commands, the SIS
commands are not case sensitive.
Symbol definitions
Input and output numbers in commands may be entered as either 1-, 2-, or 3digit numbers. All input and output numbers are specified as 3-digit numbers
in the response.
= CR/LF (carriage return/line feed) (0x0D 0A)
= CR (carriage return, no line feed)
•= space
= Input number0 through the maximum number of inputs (0 = muted output)
X1
= Input number1 through the maximum number of inputs
X2
= Input signal status0 = no signal detected, 1 = signal detected
X3
= Off/On status0 = off, 1 = on
X4
= Gain/attenuation-18 dB to +24 dB, each step = 1 dB
X5
= Gain valueNumeric dB value, 0 to 24
X6
= Attenuation valueNumeric dB value, 1 to 18
X7
= Front panel switch mode1 = normal (manual mode, 2 = autoswitch mode
Example (SW 4AV):3!In003•AllSelect input 3 video and audio.
Example (SW 6SV):5!In005•AllSelect input 5 video only.
Example (SW 12A RCA):10!In010•AllSelect input 10 audio only.
Select video input only
Select audio input only
Input video sensing
Request all inputs’ status0SSig•
Example (SW 6V):0SSig•1•1•1•0•1•0The input signal is present on
Request an individual input’s statusX2S
Video mute
Mute video1BVmt1Output no video signal.
Unmute video0BVmt0Output selected video input.
Read video muteB
(host to switcher)(switcher to host)
X1
!In
X1
&In
X1
$In
X1
•AllSelect input X1 entire channel.
X1
•VidSelect input X1 video only (audio
X1
•AudSelect input X1 audio only
1
2
X3
•
•...•
X3X2
X4
breakaway).
(audio breakaway).
n
X3
Each X3 response is the signal
status of an input, starting from
input 1; n is the maximum
number of inputs for this model.
inputs 1, 2, 3, and 5. No signal is
present on inputs 4 and 6.
’s signal status = X3.
Mute status = X4.
SW AV Series Switchers • Remote Control4-4
Command/Response Table for SIS Commands (Continued)
Mute audio1ZAmt1Output no audio signal.
Unmute audio0ZAmt0
Read audio muteZ
X4
Output selected audio input.
Mute status = X4.
Audio gain and attenuation
Set gain
X2*X6
GIn
Example:4*3GIn004•Aud+03
Set attenuation
Increment level (specified input)
Decrement level (specified input)
X2*X7
gIn
X2
+GInX2•Aud
X2
-GInX2•Aud
View audio level (specified input)VX2G
Example:V4GIn004•Aud=–03Attenuation for input 4 is set to
Set gain (current input)
Set attenuation (current input)
X6
GIn
X7
gIn
Increment level (current input)+GInX2•Aud
Decrement level (current input)-GInX2•Aud
View audio level (current input)G
Example:G–03Attenuation for input 4 is set to
X2
•Aud
X5
Set gain for input X2 to X6 dB.
Set gain for input 4 to 3 dB.
X2
•Aud
X5
X5
Set attenuation for input X2 to
X7
dB.
Increase input X2 audio level by
+1 dB.
X5
Decrease input X2 audio level by
–1 dB.
X5
View gain for input X2.
–3 dB.
X2
X2
•Aud
•Aud
X6
X7
Set gain for the current input to
X6
dB.
Set attenuation for the current
input X7 dB.
X5
Increase input X2 audio level by
+1 dB.
X5
Decrease input X2 audio level by
–1 dB.
X5
View gain for input X2.
–3 dB.
Front panel security lockout (executive mode)
Lock front panel1XExe1Output no video signal.
Unlock front panel0XExe0Output selected video input.
Read lock statusX
X4
Lock status =
X4
Front panel mode
Set normal switch mode1#F1Set switch mode to normal.
Set auto switch mode2#F2Set switch mode to auto.
Resets
Reset all audio levels to 0 dB
System reset
Esc
ZAZpa
Esc
ZXXXZpxReset to factory defaults
View, information, part number, and firmware requests
Information requestIV*
X1
•A*X1•F*X8VmtX4•Amt
Example:IV*004•A*004•F*1Vmt0•Amt0
Request for part numberNnn-nnn-nn
Example:N60-484-2260-484-22 = SW 4SVA.
Query software versionQ
X9
Example:Q1.23Sample value only.
X4
Video input 4; audio input 4;
manual switch mode; video mute
off; audio mute off.
4-5SW AV Series Switchers • Remote Control
Remote Control, cont’d
Windows-Based Program Control
The Universal Switcher Control Program, part #29-031-01, is compatible with
Windows 3.1, 3.11, 95/98, and above, and provides remote control of the following:
•Input selection (including audio breakaway for models with video and audio)
•Audio gain and attenuation adjustments (audio models)
Updates to this program can be downloaded from the Extron Web site
(http://www.extron.com).
Installing the software
The program is contained on two 3.5" diskette and must be installed and run from
the hard drive.
To install the software on the hard drive, run setup.exe from floppy disk #1 and
follow the screen instructions.
By default, the Windows installation creates a C:\UNIVSW folder and places two
icons (Universal Switcher Control Program and Universal Switcher Help) into a
group named “Extron Electronics”.
Using the software
1.To run the software, double click on the Universal Switcher Control Program
icon in the Extron Electronics program group.
2.Click on the comm port that is connected to the switcher’s RS-232 port.
3.The Extron Universal Switcher Control Program window (Figure 4-2) displays
the selected input, the audio gain for the selected input, and the panel mode.
Figure 4-2 — Universal Switcher program window
indicates that the input signal is present and is selected.
indicates that the input signal is present but not selected.
indicates that the input signal is not present.
Push the
button to refresh the input signal status.
SW AV Series Switchers • Remote Control4-6
Using the help system
For information about program features, you can access the help program in any of
the following ways:
•From the Extron Electronics program group, double-click on the Signal
Enhancement Products Help icon.
• From within the Windows-based switcher control program, click
on the Help entry on the task bar.
•From within the Windows-based switcher control program, press the F1 key.
Contact Closure Control (SW 4 and SW 6 Models Only)
The Remote connector also provides a way to select an input to the switcher using a
remote contact closure device, such as an Extron KP 6 Keypad Remote Control or a
locally-built device. Contact closure control uses pins on the Remote connector that
are not used by the RS-232 interface. The contact closure pin assignments are
shown in the table on page 4-2.
Autoswitching models (models with video) must be in normal (manual) mode.
To select a different input number using a contact closure device, momentarily
short the pin for the desired input number to logic ground (pin 5). To force one of
the inputs to be always selected, leave the short to logic ground in place. The short
overrides front panel input selections.
Infrared Remote Control
The optional Extron IR 102 Remote Control Kit consists of the following
components:
SW AV Series Switchers • Specifications and Part NumbersA-2
Audio
Gain ............................................... Adjustable
When gain is set to unity (0 dB), balanced output from captive screw
connectors or unbalanced output from RCA connectors will have a 0 dB
gain; unbalanced output from captive screw connectors will be attenuated
by 6 dB.
Frequency response ..................... 20 Hz to 20 kHz, ±0.5 dB
Warranty ....................................... 3 years parts and labor
®
All nominal levels are at ±10%
Specifications are subject to change without notice.
Part Numbers
SW AV switcher part numbers
SwitcherPart #
SW 4AV composite video and audio switcher60-484-21
SW 4AV RCA composite video and RCA audio switcher60-484-31
SW 4SVA S-video and audio switcher60-484-22
SW 4SVA RCA S-video and RCA audio switcher60-484-32
SW 6V composite video switcher60-487-01
SW 6AV composite video and audio switcher60-487-21
SW 6AV RCA composite video and RCA audio switcher60-487-31
SW 6SV S-video switcher60-487-02
SW 6SVA S-video and audio switcher60-487-22
SW 6SVA RCA S-video and RCA audio switcher60-487-32
SW 6A audio switcher60-487-20
SW 6A RCA audio switcher60-487-30
SW AV Series Switchers • Specifications and Part NumbersA-4
Switcher (continued)Part #
SW 8V composite video switcher60-482-01
SW 8AV composite video and audio switcher60-482-21
SW 8AV RCA composite video and RCA audio switcher60-482-31
SW 8SV S-video switcher60-482-02
SW 8SVA S-video and audio switcher60-482-22
SW 8SVA RCA S-video and RCA audio switcher60-482-32
SW 8A audio switcher60-482-20
SW 8A RCA audio switcher60-482-30
SW 12V composite video switcher60-483-01
SW 12AV composite video and audio switcher60-483-21
SW 12AV RCA composite video and RCA audio switcher60-483-31
SW 12SV S-video switcher60-483-02
SW 12SVA S-video and audio switcher60-483-22
SW 12SVA RCA S-video and RCA audio switcher60-483-32
SW 12A audio switcher60-483-20
SW 12A RCA audio switcher60-483-30
Universal Switcher Control Program29-031-01
SW AV switchers User’s Manual68-644-01
Optional accessories
Extron PartPart #
BNC male to RCA female adapter10-264-01
KP 6 Keypad Remote Control60-111-20
IR 102 Infrared Remote Control Kit70-224-01
Cables
Pre-cut cables
Extron SV cable is suitable for S-video. Super High Resolution SHR 1 cable is
suitable for composite video. Both these families of Extron cables have male
gender connectors on both ends.
Bulk cable in lengths up to 5000' is available with or without connectors.
SW AV Series Switchers • Specifications and Part NumbersA-6
FCC Class A Notice
Note: This equipment has been tested and found to comply with the limits for a Class A digital
device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable
protection against harmful interference when the equipment is operated in a commercial
environment. This equipment generates, uses and can radiate radio frequency energy and, if not
installed and used in accordance with the instruction manual, may cause harmful interference to
radio communications. Operation of this equipment in a residential area is likely to cause harmful
interference, in which case the user will be required to correct the interference at his own expense.
Note: This unit was tested with shielded cables on the peripheral devices. Shielded cables must be
used with the unit to ensure compliance.
Extron’s Warranty
Extron Electronics warrants this product against defects in materials and workmanship for a period
of three years from the date of purchase. In the event of malfunction during the warranty period
attributable directly to faulty workmanship and/or materials, Extron Electronics will, at its option,
repair or replace said products or components, to whatever extent it shall deem necessary to restore
said product to proper operating condition, provided that it is returned within the warranty period,
with proof of purchase and description of malfunction to:
USA, Canada, South America,Europe, Africa, and the Middle East:
and Central America:
Extron Electronics, Europe
Extron ElectronicsBeeldschermweg 6C
1001 East Ball Road3821 AH Amersfoort
Anaheim, CA 92805, USAThe Netherlands
Asia:Japan:
Extron Electronics, AsiaExtron Electronics, Japan
135 Joo Seng Road, #04-01Kyodo Building
PM Industrial Bldg.16 Ichibancho
Singapore 368363Chiyoda-ku, Tokyo 102-0082
Japan
This Limited Warranty does not apply if the fault has been caused by misuse, improper handling
care, electrical or mechanical abuse, abnormal operating conditions or non-Extron authorized
modification to the product.
If it has been determined that the product is defective, please call Extron and ask for an Applications
Engineer at (714) 491-1500 (USA), 31.33.453.4040 (Europe), 65.6383.4400 (Asia), or 81.3.3511.7655 (Japan)
to receive an RA# (Return Authorization number). This will begin the repair process as quickly as
possible.
Units must be returned insured, with shipping charges prepaid. If not insured, you assume the risk
of loss or damage during shipment. Returned units must include the serial number and a
description of the problem, as well as the name of the person to contact in case there are any
questions.
Extron Electronics makes no further warranties either expressed or implied with respect to the
product and its quality, performance, merchantability, or fitness for any particular use. In no event
will Extron Electronics be liable for direct, indirect, or consequential damages resulting from any
defect in this product even if Extron Electronics has been advised of such damage.
Please note that laws vary from state to state and country to country, and that some provisions of
this warranty may not apply to you.
www.extron.com
Extron Electronics, USA
1230 South Lewis Street
Anaheim, CA 92805
USA
714.491.1500
Fax 714.491.1517
Extron Electronics, Europe
Beeldschermweg 6C
3821 AH Amersfoort
The Netherlands
+31.33.453.4040
Fax +31.33.453.4050
Extron Electronics, Asia
135 Joo Seng Road, #04-01
PM Industrial Building
Singapore 368363
+65.6383.4400
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