User’s Manual
Audio/Video Switchers
SW6 AV MX
SW6 AV MX AS
SW6 CV MX
SW6 CV MX AS
SW6 SA MX
SW6 SV MX
SW6 SV MX AS
SW6 SV A MX
SW6 SV A MX Auto
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
Fax +65.6383.4664
Extron Electronics, Japan
Daisan DMJ Building 6F
3-9-1 Kudan Minami
Chiyoda-ku, Tokyo 102-0074 Japan
+81.3.3511.7655
68-293-01
Printed in the USA
Fax +81.3.3511.7656
© 2002 Extron Electronics. All rights reserved.
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Table of Contents
Chapter 1 • Introduction .......................................................... 1-1
About the Audio and Video Switchers ...................... 1-2
Features ...................................................................................... 1-2
S-video models ....................................................................... 1-3
Composite video models ....................................................... 1-3
Audio models ......................................................................... 1-3
Auto models........................................................................... 1-4
All models .............................................................................. 1-4
Chapter 2 • Installation............................................................. 2-1
Installation Overview.......................................................... 2-2
Mounting the switcher....................................................... 2-2
Rear Panel Cabling ................................................................ 2-3
Power connection.................................................................. 2-3
Signal input connections....................................................... 2-3
S-video models .......................................................................2-3
Composite video models .......................................................2-3
Audio models .........................................................................2-4
Signal output connections .................................................... 2-5
S-video models .......................................................................2-5
Composite video models .......................................................2-5
Audio models .........................................................................2-5
RS-232 or contact closure connection .................................. 2-5
External sync connection....................................................... 2-6
Chapter 3 • Operation ................................................................ 3-1
Front Panel Controls and Indicators............................ 3-2
Front Panel Operations....................................................... 3-3
Selecting an input.................................................................. 3-4
Normal and auto-sync mode ................................................ 3-4
Viewing the current switch mode ........................................3-4
Selecting normal mode .........................................................3-4
Selecting auto-sync mode .....................................................3-4
Audio gain and attenuation ................................................. 3-5
Viewing and adjusting an audio level..................................3-6
Audio level reset ....................................................................3-6
Memory ...................................................................................... 3-7
Troubleshooting — if no image appears................... 3-7
Audio/Video Switchers• Table of Contents
i
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Table of Contents, cont’d
Chapter 4 • Remote Control .................................................. 4-1
Audio/Video Switchers
Simple Instruction Set Control....................................... 4-2
Host-to-interface communications ....................................... 4-2
Switcher-initiated messages.................................................. 4-3
Error responses ...................................................................... 4-3
Timeout .................................................................................. 4-3
Using the command/response table ..................................... 4-4
Symbol definitions .................................................................4-4
Command/response table for SIS commands....................... 4-5
Windows-Based Program Control ................................. 4-6
Installing the software .......................................................... 4-6
Using the software ................................................................ 4-6
Using the help system ........................................................... 4-7
Contact Closure Remote Control................................... 4-7
Infrared Remote Control ................................................... 4-8
Appendix A • Specifications................................................. A-1
Chapter One
Accessories and Part Numbers
Specifications ......................................................................... A-2
Included Parts......................................................................... A-5
Accessories............................................................................... A-5
Cables ......................................................................................... A-5
1
Introduction
About the Audio and Video Switchers
Features
68-293-01 Rev. F
Printed in the USA
01 02
All trademarks mentioned in this manual are the properties of their respective
owners.
Audio/Video Switchers • Table of Contents
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Introduction
About the Audio and Video Switchers
The Extron SW family of audio/video switchers are 6-input,
2-output composite video, S-video, and/or stereo audio
switchers. The AS and Auto versions are functionally identical,
but also include an auto-sync detect mode. Auto-sync detect
mode, when enabled, automatically selects the highest
numbered input with a video signal available. The following
table identifies the models and their video, audio, and auto-sync
capabilities.
RS-232 control
SW 6 SV A MX
100-240VAC 50/60Hz
REMOTE
900 mA MAX
VCR
DSS receiver
DVD player
MONITOR
A/V switchers’ attributes
Composite video
Auto-syn
Audio
Laserdisc player
S-video
c detect
LCD projector
DVD player
Video camera
Switcher
SW6 AV MX
Part #
Figure 1-1 — Typical A/V switcher application
60-208-01
60-208-22
60-205-01
60-205-22
60-206-01
60-207-01
60-207-22
60-358-01
Features
SW6 AV MX AS
SW6 CV MX
S-video models
SW6 CV MX AS
SW6 SA MX
Inputs — S-video switchers accept up to six S-video inputs on
4-pin mini DIN connectors.
SW6 SV MX
Outputs — S-video switchers output two identical S-video
signals on 4-pin mini DIN connectors.
SW6 SV MX AS
SW6 SV A MX
Composite video models
SW6 SV A MX Auto 60-358-02
Inputs — Composite video switchers accept up to six composite
video inputs on BNC female connectors.
The switchers are compatible with NTSC, PAL, and SECAM
video. If external sync is connected, video switching occurs
during the vertical interval, providing glitch-free switching.
Outputs — Composite video switchers output two identical
composite video signals on BNC female connectors.
The switchers allow the user to switch between devices, such as
a DSS receiver, a VHS or S-VHS VCR, a DVD player, or a
camcorder and output the image to one or two video recorders
or displays such as a data monitor or large screen projector
(figure 1-1).
Audio models
Inputs — Audio switchers accept up to six stereo audio inputs,
balanced or unbalanced, on 3.5 mm, 5-pole captive screw
terminals.
The ½-rack width switcher can be mounted to a standard Extron
rack panel (part # 60-190-01). Each model has an internal
100VAC to 240VAC, 50/60 Hz, 10 watts, auto-switchable power
supply that provides worldwide power compatibility.
Outputs — Audio switchers output two identical stereo audio
outputs, balanced or unbalanced, on 3.5 mm, 5-pole
captive screw terminals.
Audio input gain and attenuation — Users can set the level of
audio gain or attenuation (-15dB to +9dB) for each input
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.
Audio/Video Switchers • Introduction
1-2
Audio/Video Switchers • Introduction
1-3
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Introduction, cont’d
Auto models
Audio/Video Switchers
Auto-sync detect — Auto or AS models continuously monitor
all inputs and automatically switch to the highest-
numbered input with video sync pulses present. If video
is absent from all inputs, no input is selected. The auto
version can operate in either normal (manual switch) or
auto-switch mode.
All models
Front panel control — The operator can select the input and set
the audio gain and attenuation for each input using the
front panel buttons.
RS-232 control — The operator can control the switcher from a
remote computer or other host using an
RS-232 link on the Remote port. RS-232 control uses
Extron’s Simple Instruction Set™ (SIS™) or the Windows-
based control software.
Simple Instruction Set — The Simple Instruction Set
program lets a host computer control the switcher
with simple commands.
Chapter Two
Windows control software — Extron’s Windows-based
control software provides a graphic way to set up
and control the switcher with an on-screen control
panel.
2
Contact closure — The operator can control the switcher
remotely using a contact closure keypad connected to the
Remote port.
Installation
Optional infrared remote control — The operator can also
control the switcher using Extron’s IR 20 Universal SYS
4/8/10/AV remote control accessory (part #70-036-03)
connected to the Remote port.
Installation Overview
Mounting the switcher
Rear Panel Cabling
Rack mount option — The switchers are 1U high and a half-
rack width wide. They can be installed on a standard
rack shelf using an Extron 1U Shelf Rack, part # 60-190-01.
Auto-switching power supply — An internal power supply
with an IEC connector makes power cord connection
easy. The power supply can be used internationally with
any power input from 110 VAC to 240 VAC at 50 or 60 Hz
and adapts automatically to the input type.
Audio/Video Switchers • Introduction
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Installation
Installation Overview
Rear Panel Cabling
To install and set up an Extron A/V switcher for operation,
follow these steps:
All connectors are on the rear panel. Depending on the model
of the switcher, the type and layout of the connectors on the rear
panel will vary. Figure 2-2 shows the rear panel of the
SW6 SV A MX switcher. Figure 2-3 shows the rear panel of the
SW6 AV MX switcher. These two models have all the
connectors available on the A/V switchers.
Turn off all of the equipment that will be connected to the
1
switcher.
Mount the switcher. See Mounting the switcher in this
2
chapter.
2
4
6
Attach the cables. See Rear Panel Cabling in this chapter.
3
4
100-240VAC 50/60Hz
Connect power cords and turn on the display devices and
the input devices.
REMOTE
900 mA MAX
Set the audio gain and attenuation. See Front Panel
Controls and Indicators in chapter 3.
5
1
3
5
7
Figure 2-2 — SW6 SV A MX rear panel cabling
Mounting the switcher
1.
For optional rack mounting, mount the A/V switcher on
the left or right side of a 19" 1U Universal Rack Shelf
2
4
6
(Extron part #60-190-01) (figure 2-1).
100-240VAC 50/60Hz
REMOTE
900 mA MAX
SW
6
A
S
V
A
SW
DEO
MX
SW
6
AN
AU
S
V
A
TO
R
MX
AU
TO
S-V
IDE
S-VI
O
D
AU
DIO
ND
AU
DIO
SW
ITCH
ER
ITC
HE
1
3
5
7
Figure 2-3 — SW6 AV MX rear panel cabling
Power connection
AC power connector — Plug a standard IEC power cord into
this connector to connect the switcher to a 100 to 240VAC, 50 Hz
or 60 Hz power source.
1
4-40 X 1/8 Screws
Use 2 Mounting Holes
on Opposite Corners
False Front Panel
Uses 2 Front Holes Only
Figure 2-1 — Rack mounting the switcher
Signal input connections
S-video models
a.
If feet were previously installed on the bottom of the
case, remove them.
S-video input connectors — Connect S-video sources to these
4-pin mini DIN connectors.
2
b.
Mount the switcher on the rack shelf, using two
4-40 x 1/8 screws in opposite (diagonal) corners to
secure the case to the shelf.
Composite video models
Composite video input connectors — Connect composite video
sources to these female BNC connectors.
2
2.
3.
If desired, attach a false front panel, or a second ½-rack-
width device to the other side of the shelf.
The A/V switchers do not alter the video signal in any
way. The signal output from the switcher is in the same
format as the input.
Attach the rack shelf to the rack using four 10-32 x ¾” bolts
and four #10 beveled dress washers.
Audio/Video Switchers • Installation
2-2
Audio/Video Switchers • Installation
2-3
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Installation, cont’d
Audio models
Signal output connections
Connections for balanced and unbalanced audio inputs —
3
S-video models
Each input has a 3.5 mm, 5-pole captive screw
connector for balanced or unbalanced stereo
audio input. Connectors are included with
each A/V 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.
S-video output connectors — Connect S-video displays to these
two 4-pin mini DIN connectors.
4
Composite video models
Composite video output connectors — Connect composite
video displays to these two female BNC connectors.
4
Audio models
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. Exercise care to ensure the captive screw
connector is plugged into the desired input or
output.
Connections for audio outputs — 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. See figure 2-6 to properly wire an output
connector.
5
Tip
Ring
Sleeve (s)
Tip
Tip
See warning
Sleeve
Tip
600 ohms
Ring
See warning
Tip
Ring
Tip
Ring
Tip
Sleeve
Sleeve (s)
Tip
Sleeve (s)
Tip
Balanced Output
Unbalanced Output
Tip
Sleeve
Ring
Ring
Figure 2-6 — Captive screw connector wiring for
audio output
600 ohms
Balanced Input
Balanced Input
(high impedance)
Unbalanced Input
(high impedance)
(600 ohms)
Connect the sleeve to ground (Gnd). Connecting
the sleeve to a negative (-) terminal will damage the
audio output circuits.
Figure 2-4 — Captive screw connector wiring for
inputs
When making connections from the switcher using
existing audio cables, see figure 2-5. A mono audio
connector consists of the tip and sleeve. A stereo audio
connector consists of the tip, ring and sleeve. The ring,
tip, and sleeve wires are also shown on the captive screw
audio connector diagrams, figure 2-4 and figure 2-6.
By default, the audio output follows the video switch. Audio
breakaway, commanded via the RS-232 link, allows the user to
select from any one of the audio input sources. See chapter 4,
RS-232/Remote Control for details on the RS-232 connection
RS-232 or contact closure connection
Tip
Sleeve
Tip (left)
Sleeve (Gnd)
Remote connector — Connect a host device, such as a computer
6
or touch control panel, an
Extron IR 20 Universal
5
1
1
5
Ring (right)
Tip (left)
SYS 4/8/10/AV remote
control, or a remote contact
closure device to the A/V
switcher via this 9-pin D
connector for remote control
using the Simple Instruction
Tip (signal)
Sleeve (Gnd)
Sleeve (Gnd)
Unbalanced stereo
9
6
6
Male
9
Unbalanced mono
Female
Figure 2-5 — Phono audio connectors
Set™ (SIS), the Extron graphical control program for Windows,
the IR 20 remote control, or a contact closure device.
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, RS-232/Remote Control, for details.
Audio/Video Switchers • Installation
2-4
Audio/Video Switchers • Installation
2-5
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Installation, cont’d
See chapter 4, RS-232/Remote Control for definitions of the SIS
commands, details on how to install and use the control
software, and information on how to make a remote contact
closure device.
VCR
Monitor
VGA input
VSC 150
External sync connection
When the switching between inputs, the resulting image change
should be seamless, or clean. The A/V switchers 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.
K
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LO
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SW6 SV A MX
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R
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1
L
Sync timing source
(black burst generator)
External Sync In connector — Connect an external sync signal
to this BNC connection for genlocking the video signal in
broadcast or other sync-critical applications.
7
External Sync Out connector — Connect any downstream
equipment that requires genlocking to this BNC connector to
route the external sync signal throughout the system in
broadcast or other sync-critical applications.
Video camera
Video camera
Video camera
Figure 2-8 — Multiple device external sync
connection example
Figure 2-7 shows a basic external sync configuration. The Ext
Sync In connector receives a timing signal. The Ext Sync Out
connector allows the signal to be passed on to another video
device, if required.
If no external sync timing source is connected to the switcher,
switching occurs immediately.
OUT
Timing source
IN
To next device
or terminate
SW6 SV A MX rear panel
Figure 2-7 —Simple external sync connection
example
Figure 2-8 shows a typical 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.
Audio/Video Switchers • Installation
2-6
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Installation, cont’d
Audio/Video Switchers
Chapter Three
3
Operation
Front Panel Controls and Indicators
Front Panel Operations
Memory
Troubleshooting — If no image appears
Audio/Video Switchers • Installation
2-8
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Operation
As a secondary function on auto-sync detect models, the button
is used with the input 1 button to select normal mode. See
Normal and auto sync mode in this chapter.
Front Panel Controls and Indicators
Figure 3-1 shows the controls and indicators on the front panel
of the SW6 CV MX switcher, which is video only and has no
auto-sync detect capabilities. Figure 3-2 shows the front panel
of the SW6 SV A MX Auto switcher, which has audio and auto-
sync capabilities. These two models have all the controls and
indicators available on the A/V switchers.
Input 3/Auto button — The input 3/Auto button selects input 3
for output.
4
As a secondary function on auto-sync detect models, the button
is used with the input 1 button to select auto-sync mode. See
Normal and auto sync mode in this chapter.
8
Input 4 button — The input 4 button selects input 4 for output.
5
6
Input 5/ button — The input 5/ button selects input 5 for
output.
SW6 CV MX
COMPOSITE VIDEO SWITCHER
As a secondary function on audio models, the button is used to
increase the amount of audio gain for a selected input. See
Audio gain and attenuation in this chapter.
1
2
3
4
5
6
7
Figure 3-1 — SW6 CV MX front panel controls and
indicators
Input 6/ button — The input 6/ button selects input 6 for
output.
7
8
8
As a secondary function on audio models, the button is used to
decrease the amount of the audio gain for a selected input. See
Audio gain and attenuation in this chapter.
MODE
NORM.
AUTO
Input 1 through 6 LEDs — The input 1 through 6 LEDs identify
SW6 SV A MX AUTO
S-VIDEO AND AUDIO SWITCHER
the selected input.
As a secondary function on audio models, the input 1 through 5
LEDs indicate the audio level of the selected input. See Audio
gain and attenuation in this chapter.
1
2
3
4
5
6
7
9
10
Figure 3-2 — SW6 SV A MX Auto front panel
controls and indicators
On auto-sync detect models, the input 2 and 3 LEDs also
indicate the switching mode. See Normal and auto sync mode in
this chapter.
Power LED — The Power LED lights to indicate power is on. If
AC voltage is available, power is on. When power is first
applied, all front panel LEDs flash to indicate that the power up
sequence was accomplished satisfactorily.
1
2
Audio configuration/save button and LED — The Audio
button and LED enable the user to view and/or change the
current audio level setting for each input. See Audio gain and
attenuation in this chapter.
9
Input 1/Mode button — The input 1/Mode button selects
input 1 for output.
+dB/-dB LEDs — The +dB and -dB LEDs indicate the polarity
of the audio level setting. See Audio gain and attenuation in this
chapter.
10
As a secondary function on auto-sync detect models, the button
is used with the input 2 or input 3 button to select the switching
mode. See Normal and auto sync mode in this chapter.
Input 2/Normal button — The input 2/Norm button selects
input 2 for output.
3
Front Panel Operations
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
Audio/Video Switchers • Operation
3-2
Audio/Video Switchers • Operation
3-3
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Operation, cont’d
output video using each device’s own operating instructions.
Select an input. The image should appear on the screen.
When changing mode, if the input 1/Mode button is
released too soon (before the input 2 or 3 LED begins to
blink), input 1 may be selected.
Selecting an input
Audio gain and attenuation
To select an input using the front panel buttons, press and
release the button for the desired input (auto-sync detect
models must be in normal mode). The LED for the selected
input lights.
The audio level of each input can be displayed and adjusted
through a range of -15dB to +9dB to ensure that there is no
noticeable volume difference among sources. The audio level
can be adjusted from the front
panel or by using Extron’s
Windows-based control program.
Input selection can also be done by an RS-232 device or a third
party contact closure device (see chapter 4, RS-232/Remote
Control).
Key:
= off (value 0 dB),
= slow blink (value 1dB),
= fast blink (value 2dB),
= on (value 3dB)
B1
B2
1.
Press and release an input
button to select an input.
Normal and auto-sync mode
The auto-sync detect model can operate in either normal
(manual switch) or auto-sync mode. Input selection by the front
panel buttons is blocked while in auto-sync mode. However,
the front panel LEDs remain functional and the buttons can be
used to view or change the mode.
Auto-sync detect models
must be in normal mode.
Input LED
-dB +dB
dB
+9
1
2
3
4
5
2.
Press and hold the Audio
button until the Audio LED
begins to blink, then release
the Audio button. The audio
level for the selected input is
displayed in the input 1
through 5 LEDs and the
polarity (+ or -) is displayed
by the +dB and -dB LEDs.
B2
B1
+8
+7
+6
+5
+4
+3
Viewing the current switch mode
The current mode can be determined at any time by pressing
and holding the input 1/Mode button until either the
input 2/Norm or input 3/Auto LED blinks to indicate the
mode. Release the input 1/Mode button.
B2
B1
B2
B1
+2
+1
0
Conversely, if selecting input 1 and the input 1/Mode
button is held too long, the current mode is displayed
and input 1 is not selected.
Each input LED indicates 0dB
when off, 1dB when blinking
slowly, 2dB when blinking
quickly, and 3dB when lit.
B1
B2
-1
Selecting normal mode
-2
Press and hold the input 1/Mode and input 2/Norm buttons
simultaneously. The input 2/Norm LED blinks to indicate
normal mode. Release both buttons. The default input is
input 1, but if you release the input/Mode 1 button before
releasing the input 2/Norm button, the switcher may select
input 2.
The +dB LED on indicates a
positive (gain) level. The -dB
LED on indicates a negative
(attenuation) level. Both
LEDs on indicate 0dB.
-3
B1
B2
-4
-5
-6
B1
B2
-7
3.
4.
Press and release the
and
-8
When changing mode, if the input 1/Mode button is
released too soon (before the input 2 or 3 LED begins to
blink), input 1 may be selected.
buttons to increase and
decrease the audio level.
-9
B1
B2
-10
-11
-12
-13
-14
-15
Press and hold the Audio
button until the Audio LED
turns off to save the gain
value in memory and exit the
audio display and adjustment
mode.
Selecting auto-sync mode
Press and hold the input 1/Mode and input 3/Auto buttons
simultaneously. The input 3/Auto LED blinks to indicate auto-
sync mode. Release both buttons. The highest-numbered input
with video sync pulses present is automatically selected for
output. If no sync is present, no input is selected.
B1
B2
Audio/Video Switchers • Operation
3-4
Audio/Video Switchers • Operation
3-5
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Operation, cont’d
1. There is one audio level setting per input. The
setting is shared by the left and right audio inputs.
E
E
D
B1
D
2. The audio level settings are stored in non-volatile
memory. When power is removed and restored, the audio
level settings are retained.
Viewing and adjusting an audio level
-1dB
See figure 3-3 and figure 3-4 and the following steps for an
example of viewing and adjusting the audio level on a switcher
with audio.
D
LED key:
= off (value 0 dB),
B1 = slow blink (value 1dB),
CONF./SAVE
B2 = fast blink (value 2dB),
B2
C
E
= on (value 3dB)
CONF./SAVE
Figure 3-4 — Adjusting the audio level
Audio level reset
A
To reset the audio level to 0dB for all inputs, press and hold the
Audio Conf./Save button for approximately 10 seconds. The
Audio LED begins to blink and then turns off. Release the
Audio Conf./Save button.
+8dB
B2
LED key:
= off (value 0 dB), B1 = slow blink (value 1dB),
B2 = fast blink (value 2dB),
= on (value 3dB)
Memory
B
Audio and switch 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.
CONF./SAVE
Figure 3-3 — Viewing the audio level
Press and release an input button to select an input. The
associated input LED lights.
A
B
C
If an auto-sync detect model 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).
Press and hold the Audio Conf./Save button until the Audio
LED starts blinking.
The gain or attenuation value is displayed in the input 1
through 5 LEDs. In Figure 3-3, the value +8dB is displayed.
Press and release the
audio level displayed in the input LEDs by 1dB per button
push. Note the input LED, +dB LED, and -dB LED changes that
occur each time the
Figure 3-4 shows the result of pressing the
nine times to change the value to -1dB. Note that the +dB LED
has turned off and that the -dB LED is on to indicate a negative
level.
button several times to decrease the
Troubleshooting — If no image appears
D
1.
Ensure that all devices are plugged in and powered on.
The switcher is receiving power if the front panel Power
LED is lit.
button is pressed and released.
button a total of
2.
Ensure an active input is selected on the switcher or that
the switcher is in auto-sync mode.
3.
4.
5.
Ensure that the proper signal format is supplied.
Press and hold the Audio Conf./Save button until the Audio
LED off. The input LEDs stop displaying the audio level, the
+dB and -dB LEDs go off, and the selected input LED lights.
Check the cabling and make corrections as necessary.
Call the Extron S3 Sales & Technical Support Hotline if
necessary.
E
Audio/Video Switchers • Operation
3-6
Audio/Video Switchers • Operation
3-7
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Operation, cont’d
Audio/Video Switchers
Chapter Four
4
RS-232/Remote Control
Simple Instruction Set Control
Windows-Based Program Control
Contact Closure Remote Control
Infrared Remote Control
Audio/Video Switchers • Operation
3-8
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RS-232/Remote Control, cont’d
The A/V switchers’ rear panel Remote connectors (Figure 4-1)
Switcher-initiated messages
can be connected to the serial port output of a host device, such
as a computer or control system, to an Extron IR 20 Universal
SYS 4/8/10/AV remote control, or to a remote contact closure
device. Other than the IR 20, remote communications with the
switcher are via Extron’s Simple Instruction Set, Extron’s
Windows-based control program, or pin-programmed in the
case of a contact closure device.
When a local event, such as a front panel operation or error
condition, occurs, the switcher responds by sending a message
to the host. The switcher-initiated messages are listed below:
(C) Copyright 1996, Extron Electronics 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 message whenever
the selected input is changed using the front panel buttons.
5
1
1
5
9
6
6
Male
9
Female
Figure 4-1 — Remote connector pinout
Reconfig
The switcher initiates this message when there is a change in an
audio model’s audio gain setting.
The RS-232 protocol of the rear panel RS-232/Remote connector
is 9600 baud, 1 stop bit, no parity, and no flow control. The
connector has the following pin assignments:
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:
Pin RS-232
Contact closure Function
1
2
3
4
5
6
7
8
9
—
TX
RX
—
In#1
—
Input #1
Transmit data (-)
Receive data (+)
Input #2
—
In#2
Gnd
In#3
In#4
In#5
In#6
E01
E06
- Invalid input channel number (out of range)
Gnd
—
Signal ground
Input #3
- Invalid input channel change (auto-switch mode
active)
—
Input #4
E09
E10
E13
E14
- Invalid function (mode) parameter
- Invalid command
—
Input #5
—
Input #6
- Invalid value (out of range)
Illegal command for this configuration
Simple Instruction Set Control
Timeout
Host-to-interface communications
Pauses of 10 seconds or longer between command ASCII
characters result in a timeout. The command operation is
aborted with no other indication.
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.
Audio/Video Switchers • RS-232/Remote Control
4-2
Audio/Video Switchers • RS-232/Remote Control
4-3
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RS-232/Remote Control, cont’d
Using the command/response table
The command/response table is on the next page. Lower case
letters are allowed in the command field only as indicated.
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 below is for use with the command/response
table.
Symbol definitions
= CR/LF (carriage return/line feed) (0x0D 0A)
•
= space
= Input number
0 through 6 (0 = muted
output
X1
= Gain/attenuation value 16 steps 1dB per step
X2
X3
X4
= Gain/attenuation value Numeric dB value, –15 to +9
= Switch mode
1 = normal (manual) mode
2 = auto-switch mode
= Software version
= C, V, or A
x.xx
X5
X6
C = channel (audio & video)
V = video
A = audio
= 6
Total number of inputs
X7
ASCII to HEX Conversion Table
Space
Audio/Video Switchers • RS-232/Remote Control
4-4
Audio/Video Switchers • RS-232/Remote Control
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RS-232/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, Windows 95/98, Windows
NT, Windows ME, and Windows 2000 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)
Front panel switch mode selection (auto-switching
models)
Updates to this program can be downloaded from the Extron
Web site (http://www.extron.com).
Figure 4-2 — Universal Switcher program window
Installing the software
Using the help system
The program is contained on a single 3.5” diskette and can be
run from the floppy drive, or it can be installed and run from
the hard drive.
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.
To install the software on the hard drive, run setup.exe from the
floppy disk and follow the screen instructions.
•From within the Windows-based switcher
control program, click on the Help entry on
the task bar.
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”.
•From within the Windows-based switcher
control program, press the F1 key.
Using the software
1.
To run the software, double click on the Universal
Contact Closure Remote Control
Switcher Control Program icon in the Extron
Electronics program group.
The Remote connector also provides a way to select an input to
the switcher using a remote contact closure 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.
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.
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.
Audio/Video Switchers • RS-232/Remote Control
4-6
Audio/Video Switchers • RS-232/Remote Control
4-7
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RS-232/Remote Control, cont’d
Shorting the contact closure pin to override the front
Audio/Video Switchers
panel selection will work for all inputs on non auto-
switching models. On auto-switching models, only the
contact closure pins for inputs 2 through 6 can be
shorted in this fashion. If pin 1 is connected to ground
for an extended period on an auto-switch model, input 1
is not selected. Rather, the LEDs alternately display the
previously selected input and blink the current front
panel mode.
Infrared Remote Control
The optional Extron IR 20 Universal SYS 4/8/10/AV consists of
the following components:
• System remote (hand-held remote control)
• IR detector with 6’ cable and RJ-11 connector
•IR-20 SYS 4/AV switcher remote adapter with 3’ cable and
RS-232 T connector
• External 9 VDC adapter power supply
Appendix A
Install and operate the remote control in accordance with IR 20
User’s Guide (part #68-200-01) included with the remote.
A
Specifications
Accessories and Part Numbers
Specifications
Included Parts
Accessories
Cables
Audio/Video Switchers • RS-232/Remote Control
4-8
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Specifications
Input level ..................................... 0.3V to 5.0V p-p ........ SW 6 SV A MX
0.5 to 5.0V p-p........... all other models
Output level.................................. TTL ............. 4V to 5V p-p
Video
Gain ............................................... Unity
Bandwidth .................................... 30 MHz (-3dB)
Differential phase error .............. 0.01º, 4.43 to 30 MHz
Differential gain error ................. 0.03%, 4.43 to 30 MHz
Crosstalk ....................................... -70dB @ 3.58 MHz
Switching speed ........................... 160 nS (max.)
Polarity .......................................... Positive or negative (follows input)
Audio — SW 6 SA MX, SW 6 SV A MX, and SW 6 AV MX
only
Gain ............................................... Unbalanced -15dB to +9dB, balanced -9dB
to +15dB
Frequency response ..................... 20 Hz to 20 kHz, 0.05dB
THD + Noise ................................ 0.03% @ 1 kHz, 0.3% @ 20 kHz at rated
maximum output drive
Video input
Number/signal type ................... 6 S-video................................... SW 6 SV
MX, SW 6 SV A MX
6 composite video ................... SW 6 CV
MX, SW 6 AV MX
S/N ................................................ >90dB at rated maximum output drive
Crosstalk ....................................... <-65dB @ 20 kHz, <-80dB @ 1 kHz or
below 60 Hz, fully loaded
Connectors .................................... 6 4-pin mini-DIN female....... SW 6 SV
MX, SW 6 SV A MX
6 BNC female .......................... SW 6 CV
MX, SW 6 AV MX
Stereo channel separation .......... >80dB @ 20 Hz to 20 kHz
CMRR ............................................ >75dB @ 20 Hz to 20 kHz
Minimum/maximum levels ...... Analog ....... 0.3V to 1.5V p-p with no
offset
Impedance .................................... 75 ohms (all inputs are terminated at 75
ohms)
Return loss .................................... -41dB @ 5 MHz
External sync (genlock)............... 0.3V to 0.4V p-p
Audio input — SW 6 SA MX, SW 6 SV A MX, and SW 6
AV MX only
Number/signal type ................... 6 stereo, balanced/unbalanced
Connectors .................................... 6 3.5 mm captive screw connectors, 5 pole
Impedance
SW 6 SV A MX ................. >10 kohms unbalanced, >20 kohms
balanced, DC coupled
SW 6 SA MX, SW 6 AV MX >25 kohms balanced, 50 kohms
unbalanced, DC coupled
Video output
Number/signal type ................... Individually buffered
2 S-video................................... SW 6 SV
MX, SW 6 SV A MX
Maximum level ............................ +15dBu, (balanced or unbalanced) at
stated %THD+N
Input gain adjustment................. -15dB to +9dB, adjustable per input
2 composite video ................... SW 6 CV
MX, SW 6 AV MX
Connectors .................................... 2 4-pin mini-DIN female....... SW 6 SV
MX, SW 6 SV A MX
Audio output — SW 6 SA MX, SW 6 SV A MX, and SW 6
AV MX only
2 BNC female .......................... SW 6 CV
MX, SW 6 AV MX
Number/signal type ................... 2 stereo, balanced/unbalanced
Connectors .................................... 2 3.5 mm captive screw connnectors, 5
pole
Impedance .................................... 50 ohms unbalanced, 100 ohms balanced
Gain error ...................................... 0.1dB channel to channel
Maximum level (Hi-Z) ................ >+21dBu, balanced or unbalanced at
stated %THD+N
Minimum/maximum levels ...... Analog ....... 0.3V to 1.5V p-p
Impedance .................................... 75 ohms
Return loss .................................... -47dB @ 5 MHz
DC offset ....................................... 5mV maximum with input at 0 offset
Switching type ............................. Vertical interval
Sync
Maximum level (600 ohm) ......... >+15dBm, balanced or unbalanced at
stated %THD+N
Genlock connectors ..................... 2 BNC female
Standards ...................................... NTSC, PAL, SECAM
Audio/Video Switchers • Specifications
A-2
Audio/Video Switchers • Specifications
A-3
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Accessories and Part Numbers, cont’d
0dBu = 0.775 volts (RMS).
Included Parts
Included parts
Switcher
SW6 AV MX
Part number
Control/remote — switcher
Serial control port ........................ RS-232, 9-pin D female connector
Baud rate and protocol ............... 9600, 8-bit, 1 stop bit, no parity
Serial control pin configurations 2 = TX, 3 = RX, 5 = GND
Contact closure ............................ 9-pin D female
Contact closure pin configurations 1 = input 1, 2 = input 2, 5 = GND, 6 =
input 3, 7 = input 4, 8 = input 5, 9 = input 6
60-208-01
60-208-22
60-205-01
60-205-22
60-206-01
60-207-01
60-207-22
60-358-01
60-358-02
29-031-01
33-585-01
33-263-01
68-293-01
SW6 AV MX AS
SW6 CV MX
SW6 CV MX AS
SW6 SA MX
Program control ........................... Extron’s control program for Windows®
Extron’s Simple Instruction Set™ – SIS™
SW6 SV MX
SW6 SV MX AS
General
SW6 SV A MX
Power............................................. 100VAC to 240VAC, 50/60 Hz, 10 watts,
internal, auto-switchable
Temperature/humidity .............. Storage -40° to +158°F (-40° to +70°C) /
10% to 90%, non-condensing
Operating +32° to +122°F (0° to +50°C) /
10% to 90%, non-condensing
Rack mount................................... Yes, with optional 1U rack shelf, part #60-
190-01
SW6 SV A MX Auto
Universal Switcher Control Program
SW6 SV A MX switcher label
A/V switcher label
A/V switcher User’s Guide
Accessories
Enclosure type.............................. Metal
Enclosure dimensions ................. 1.75" H x 8.75" W x 9.5" D (1U high, 1/2
rack width)
Accessories
Part number
4.4 cm H x 22.2 cm W x 24.1 cm D
(Depth excludes connectors.)
S-video male to 2 BNC adapter, female, 8”
26-353-02
S-video female to 2 BNC, male (various lengths) 26-353-xx
BNC male to RCA female adapter 10-264-01
Product weight
SW 6 CV MX ..................... 2.9 lbs (1.3 kg)
SW 6 SV MX, SW 6 SA MX 2.7 lbs (1.2 kg)
SW 6 AV MX .................... 3.3 lbs (1.5 kg)
SW 6 SV A MX ................. 3.0 lbs (1.4 kg)
Shipping weight
SW 6 CV MX, SW 6 SV MX, SW 6 SA MX ........... 5 lbs (2.3 kg)
SW 6 AV MX, SW 6 SV A MX ................................ 6 lbs (2.7 kg)
Vibration ....................................... ISTA/NSTA 1A in carton (International
Safe Transit Association)
Cables
Extron’s SVHS cable is suitable for S-video and Super High
Resolution SHR 1 cable is suitable for composite video. Both
these families of Extron cables have male gender connectors on
both ends.
S-video Cable
Part number
SVHS 6’ (6 feet/1.8 meters)
SVHS 12’ (12 feet/3.7 meters)
SVHS 20’ (20 feet/6.1 meters)
SVHS 30’ (30 feet/9.1 meters)
SVHS 50’ (50 feet/15.2 meters)
SVHS 75’ (75 feet/22.9 meters)
26-316-02
26-316-03
26-316-01
26-316-04
26-316-05
26-316-06
Listings .......................................... UL, CUL
Certifications ................................ CE, FCC Class A
MTBF ............................................. 30,000 hours
Warranty ....................................... 3 years parts and labor
Specifications are subject to change without notice.
Audio/Video Switchers • Accessories and Part Numbers
A-4
Audio/Video Switchers • Accessories and Part Numbers
A-5
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Accessories and Part Numbers, cont’d
S-video Cable
Part number
SVHS 100’ (100 feet/30.4 meters)
26-316-07
Super High Resolution Cable
Part number
SHR 1-3’ (3 feet/0.9 meter)
26-383-01
26-383-12
26-383-07
26-383-04
26-383-05
26-383-06
26-383-03
26-383-08
26-383-09
26-383-10
26-383-11
SHR 1-6’ (6 feet/1.8 meters)
SHR 1-12’ (12 feet/3.7 meters)
SHR 1-25’ (25 feet/7.6 meters)
SHR 1-50’HR (50 feet/15.2 meters)
SHR 1-75’HR (75 feet/22.9 meters)
SHR 1-100’HR (100 feet/30.5 meters)
SHR 1-150’HR (150 feet/45.0 meters)
SHR 1-200’HR (200 feet/60.0 meters)
SHR 1-250’HR (250 feet/75.0 meters)
SHR 1-300’ (300 feet/91.4 meters)
Audio/Video Switchers • Accessories and Part Numbers
A-6
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