User’s Manual
VSW 2VGA A
2-Input, 1-output VGA and Audio Switcher
68-1111-01 Rev. D
11 09
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䄺ਞ
ᅝܼ乏ⶹꢀsꢀЁ᭛
䖭Ͼヺোᦤ⼎⫼᠋䆹䆒⫼᠋
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FCC Class A Notice
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. Operation is subject to the following two conditions: (1) this
device may not cause harmful interference, and (2) this device must accept any interference received,
including interference that may cause undesired operation. The Class A 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.
This unit was tested with shielded cables on the peripheral devices. Shielded cables must be used
with the unit to ensure compliance with FCC emissions limits.
N
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Table of Contents
Chapter One • Introduction ................................................... 1-1
About this Manual .................................................................... 1-2
About the VSW 2VGA A.......................................................... 1-2
Daisy Chaining the VSW 2VGA A......................................... 1-3
Features ........................................................................................ 1-4
Chapter Two • Installation and Operation ................. 2-1
Installation Overvieꢀ............................................................... 2-2
Mounting the VSW 2VGA A................................................... 2-2
Rack shelf mounting.............................................................. 2-3
UL rack mounting guidelines.................................................2-3
Rack mounting instructions...................................................2-3
Under-desk mounting............................................................ 2-6
Through-desk mounting........................................................ 2-6
Front Panel Features................................................................. 2-8
Rear Panel Features................................................................... 2-9
Setting the VSW 2VGA A Jumpers...................................... 2-10
Poꢀer connection ................................................................ 2-13
Operation................................................................................... 2-14
Input selection...................................................................... 2-14
Using the VSW I AAP ........................................................... 2-14
Setting the VSW I AAP jumpers...........................................2-14
Single sꢀitcher example......................................................2-14
Daisy chain configuration ................................................... 2-15
Loop configuration...............................................................2-15
Loop configuration example ...............................................2-16
Tree configuration................................................................2-18
Tree configuration example.................................................2-18
Appendix A • Specifications, Part Numbers, and
Accessories ........................................................................................A-1
Specifications..............................................................................A-2
Included Parts .............................................................................A-5
Accessories...................................................................................A-5
All trademarks mentioned in this manual are the properties of their respective owners.
VSW 2VGA A • Table of Contents
i
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Table of Contents, cont’d
VSW 2VGA A • Table of Contents
ii
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VSW 2VGA A
Chapter One
1
Introduction
About this Manual
About the VSW 2VGA A
Daisy Chaining the VSW 2VGA A
Features
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Introduction
About this Manual
This manual contains information about the Extron
VSW 2VGA A switcher. The terms “VSW 2VGA A” and
“switcher” are used interchangeably in this manual. The Extron
VSW I AAP interface (part # 70-529-xx), an optional accessory
used when several VSW 2VGA A switchers are daisy chained
together, is also discussed.
About the VSW 2VGA A
The Extron VSW 2VGA A is a compact and economical two-
input, one-output VGA switcher with unbalanced stereo
audio and 300 MHz (-3 dB) video bandwidth. It accepts two
VGA-QXGA, RGBHV, RGBS, RGsB, RsGsBs, component video,
or HDTV component video inputs. The switcher has two
unbalanced stereo audio inputs and one unbalanced stereo
audio output. It also features a buffered local monitor output
for Input 1.
A front panel toggle switch, a contact closure controller, or the
autoswitching option can be used for input selection.
VSW 2VGA A • Introduction
1-2
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Daisy Chaining the VSW 2VGA A
Up to ten VSW 2VGA A switchers can be daisy chained together
with each switcher's input separately fed and controlled by an
optional accessory interface, the VSW I AAP (part #70-529-xx).
Figure 1-1 is an example of how several such switcher-interface
combinations can be daisy chained together in a boardroom
environment.
Extron
VSW 1 AAP
Extron
VSW 2VGA A
VGA Switcher
SHOW ME
AUDIO
VSW I AAP
COMPUTER
Extron
VSW I AAP
Expandable, economical presentation chain for
conference rooms and library study rooms.
Projector
Extron’s pre-made
VGA with audio cable
assemblies.
SHOW ME
SHOW ME
SHOW ME
AUDIO
AUDIO
AUDIO
COMPUTER
VSW
I
AAP
COMPUTER
VSW
I
AAP
COMPUTER
VSW I AAP
VSW I
AAP
VSW I
AAP
VSW I
AAP
In 1
In 1
INPUT
In 1
INPUT
1
INPUT
2
INPUT
1
2
INPUT
1
INPUT
2
INPUT
1
INPUT
2
In 2
Out
In 2
Out
In 2
Out
1
2
1
2
1
2
1
2
VSW 2VGA
A
VSW 2VGA
A
VSW 2VGA
A
VSW 2VGA
A
VSW 2VGA A
VSW 2VGA A
VSW 2VGA A
Extron’s pre-made VGA with audio cable assemblies.
Figure 1-1 — Daisy chaining the multiple switchers
By default, all switchers are set to input 2 as the active input;
therefore, in a daisy chain of switchers the VGA and audio
signals flow from one switcher to input 2 of the next switcher in
the chain. The switchers are daisy chained in this fashion until
the last switcher in the daisy chain outputs to a projector and
audio amplifier.
Up to ten switchers can be daisy chained together without any
degradation in picture quality. One power supply powers up to
five switchers.
VSW 2VGA A • Introduction
1-3
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Introduction, cont’d
Features
Autoswitching ability — The VSW 2VGA A can detect active
sync signals and automatically switch to the highest
numbered active input.
Furniture mountable — The VSW 2VGA A can be mounted
on a rack shelf, under a desk or podium, through a desk
or furniture, or to a projector mount, using optional
hardware.
Daisy chaining — Multiple VSW 2VGA A switchers can be
daisy chained together to form a presentation system.
Each switcher can then be separately controlled through
an Extron VSW I AAP interface.
Stereo audio — Unbalanced stereo audio inputs and outputs on
3.5 mm stereo mini jacks.
VSW 2VGA A • Introduction
1-4
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VSW 2VGA A
Chapter Two
2
Installation and Operation
Installation Overview
Mounting the VSW 2VGA A
Front Panel Features
Rear Panel Features
Operation
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Installation and Operation
Installation Overview
To install and set up the VSW 2VGA A for operation, follow
these steps:
Turn all of the equipment off. Make sure that the video
1
and audio sources (computers, stereos, tape decks, or other
devices), the VSW 2VGA A, the output devices (projectors,
speakers), and the contact closure control device are all
turned off and disconnected from the power source.
2
If you are going to daisy chain two or more switchers with
VSW I AAP control panels, identify the revision of the
VSW 2VGA A board (for configuring the VSW I AAPs)
VSW 2VGA A Jumpers” on page 2-10.
3
4
5
VSW 2VGA A” in this chapter.
Panel Features" in this chapter.
Connect power cords and turn on the devices in the
following order: output devices, contact closure controller,
VSW 2VGA A switcher, and input devices.
6
Select an input using the front panel input toggle switch or
the contact closure controller.
7
The image should now display, and sound should be
audible. If not, ensure that all devices are plugged in and
receiving power. Check the cabling and make adjustments
as needed. Select a different input to check for a picture
and sound.
Mounting the VSW 2VGA A
If you are going to daisy chain two or more switchers with
N
VSW I AAP control panels, identify the revision of the
VSW 2VGA A board (for configuring the VSW I AAPs)
and configure the switchers' jumpers before mounting
on page 2-10.
The VSW 2VGA A can be mounted in a rack, or under or
through furniture, using one of the following optional mounting
kits:
•
•
RSF 123 3 inch rack shelf kit (part #60-190-20)
RSB 123 3 inch rack shelf (part #60-604-20)
VSW 2VGA A • Installation and Operation
2-2
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•
RSU 126 6 inch deep universal rack shelf kit (part #60-
190-10)
•
•
RSB 126 6 inch deep basic rack shelf (part #60-604-10)
RSU 129 9 inch 1U universal rack shelf kit (part #60-190-
01)
•
•
•
RSB 129 9 inch 1U basic rack shelf (part #60-604-01)
MBU 125 Under-desk mount kit (part #70-077-01)
MBD 129 Through-desk mount kit (part #70-077-02)
When mounting the switcher, take cabling and power
availability into consideration. Follow the appropriate
mounting procedure on the following pages.
Rack shelf mounting
UL rack mounting guidelines
The following Underwriters Laboratories (UL) guidelines
pertain to the safe installation of the VSW 2VGA A in a rack.
1.
Elevated operating ambient temperature — If installed in
a closed or multi-unit rack assembly, the operating ambient
temperature of the rack environment may be greater than
room ambient temperature. Therefore, install the switcher
in an environment compatible with the maximum ambient
temperature (Tma = +122° F, +50° C) specified by Extron.
2.
3.
4.
Reduced air flow — Install the equipment in a rack so that
the amount of air flow required for safe operation of the
equipment is not compromised.
Mechanical loading — Mount the equipment in the rack
so that a hazardous condition is not achieved due to
uneven mechanical loading.
Circuit overloading — Connect the equipment to
the supply circuit and consider the effect that circuit
overloading might have on overcurrent protection and
supply wiring. Appropriate consideration of equipment
nameplate ratings should be used when addressing this
concern.
5.
Reliable earthing (grounding) — Maintain reliable
grounding of rack-mounted equipment. Pay particular
attention to supply connections other than direct
connections to the branch circuit (e.g. use of power strips).
Rack mounting instructions
1. If feet were installed on the bottom of the switcher, remove
them.
VSW 2VGA A • Installation and Operation
2-3
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Installation and Operation, cont’d
2.
Mount the VSW 2VGA A on one of the following rack
shelves:
• RSF 123 rack shelf kit (part #60-190-20)
• RSB 123 rack shelf (part #60-604-20)
• RSU 126 6 inch deep universal rack shelf kit
(part #60-190-10)
• RSB 126 6 inch deep basic rack shelf (part #60-604-10)
• RSU 129 1U universal rack shelf kit (part #60-190-01)
• RSB 129 1U basic rack shelf (part #60-604-01)
On the standard rack shelf, the switcher mounts in one
of four locations to the rear of the rack or in one of four
locations to the front of the rack.
3.
Attach the switcher to the rack shelf using two
4-40 x 3/16 inch machine screws. Insert the screws from
the underside of the shelf and securely fasten them into
diagonally opposite corners, as shown in figure 2-1.
VersaTools Rack Shelf
1/4 Rack Width Front
False Faceplate
Use 2 mounting holes on
opposite corners.
(2) 4-40 x 3/16"
Screws
Figure 2-1 — Mounting the VSW 2VGA A on a rack
shelf
Since the switcher is 1.0 inch high, there will be a gap of
0.75 inch above the switcher.
N
VSW 2VGA A • Installation and Operation
2-4
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4.
Attach the rack shelf to the rack using four
10-32 x 3/4 inch bolts (provided). Insert the bolts through
#10 beveled washers, then through the holes in the rack
ears and rack, as shown in figure 2-2.
1U Universal Rack Shelf
(2) 4-40 x 3/16"
Screws
Use 2 mounting holes on
opposite corners.
Figure 2-2 — Mounting the VSW 2VGA A on a
standard 1U rack shelf
VSW 2VGA A • Installation and Operation
2-5
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Installation and Operation, cont’d
Under-desk mounting
1.
Attach the under-desk mounting brackets (MBU 125,
part #70-077-01) to the VSW 2VGA A with the four
provided machine screws, as shown in figure 2-3.
Figure 2-3 — Under-desk mounting brackets
2.
Hold the switcher with attached brackets against the
mounting surface. Use a soft pencil to mark the location of
holes for screws on the desk or other furniture.
3.
Drill 1/4 inch (6.4 mm) deep, 3/32 inch (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.
Attach the VSW 2VGA A to the desk with the provided
wood screws.
Through-desk mounting
1.
Hold the front panel of the switcher against the furniture.
Use a soft pencil to mark the rough-in opening on the desk.
The opening, 1.125 inch x 4.425 inch (2.8 cm x 11.2 cm) will
be slightly larger than the switcher enclosure.
2.
Cut out the material from the rough-in area with a jigsaw.
Check the opening size by inserting the switcher part way
through the hole. If needed, use a saw, file, or sandpaper
to enlarge the hole. Smooth the edges of the hole with
sandpaper.
VSW 2VGA A • Installation and Operation
2-6
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3.
4.
5.
Attach the through-desk mounting brackets
(MBD 129, part #70-077-02) to the VSW 2VGA A with the
four provided machine screws, as shown in the through-
desk mounting diagram on the next page.
Hold the switcher with attached brackets up against the
underside of the desk or table. Use a soft pencil to mark
the locations of the holes for the screws that will attach the
brackets to the desk.
Drill 1/4 inch (6 mm) deep, 3/32 inch (2 mm) diameter
pilot holes in the desk or table at the marked screw
locations. The holes should be drilled from the underside
or inside (concealed side) of the furniture, where the
switcher will be located.
6.
Attach the switcher to the desk or table with the provided
wood screws, as shown in figure 2-4.
A
A
2 V G
S W
V
T
I
T
I N
2
1
Figure 2-4 — Through-desk mounting
7.
To adjust the height of the switcher within the desk,
slightly loosen the screws that attach the brackets to the
switcher, adjust the height by sliding the switcher up or
down, and retighten the screws.
VSW 2VGA A • Installation and Operation
2-7
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Installation and Operation, cont’d
Front Panel Features
INPUT 1
INPUT 2
1
1
2
2
VSW 2VGA A
3
4
5
6
7
Figure 2-5 — VSW 2VGA A front panel features
Input 1 LED indicator — This LED lights green whenever
input 1 (video and audio) is selected.
a
b
Input 2 LED indicator — This LED lights green whenever
input 2 (video and audio) is selected.
The LEDs
and
above also serve as power up
N
a b
indicators. When the switcher is powered up, the selected
input's LED lights green.
Input select toggle switch — Toggling this switch up selects
input 1; toggling it down selects input 2.
c
d
Input 1 video — Input VGA-QXGA, RGBHV, RGBS, RGsB,
RsGsBs, component video, or HDTV component video through
this female 15-pin HD connector.
Input 1 audio — Input unbalanced stereo audio through this
3.5 mm mini audio jack (figure 2-6).
e
Tip (L)
Ring (R)
Sleeve (
)
3.5 mm Stereo Plug Connector
(unbalanced)
Figure 2-6 — Audio input connector
Input 2 video — Input VGA-QXGA, RGBHV, RGBS, RGsB,
RsGsBs, component video, or HDTV component video through
this female 15-pin HD connector.
f
g
Input 2 audio — Input unbalanced stereo audio through this
3.5 mm mini audio jack. See figure 2-6.
VSW 2VGA A • Installation and Operation
2-8
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Rear Panel Features
VSW 2VGA A
POWER
12V
.1A MAX
VGA IN 1 LOOP
OUTPUT
CONTACT
AUD OUT
1
2
AUTO-SW
1
2
3
4
5
Figure 2-7 — VSW 2VGA A rear panel features
Power connector — Connect the included 12 VDC external
power supply to the 2-pole, 3.5 mm captive screw connector.
a
One power supply can power up to five switchers.
N
Loop Thru Input 1 connector — female 15-pin HD connector for
buffered local monitor output from Input 1
b
c
Output — female 15-pin HD connector for output from Input
1 or Input 2. The output video type follows input type and is
either VGA-QXGA, RGBHV, RGBS, RGsB, RsGsBs, component
video, or HDTV component video.
Audio Output connector — Unbalanced stereo audio is output
from this 3.5 mm mini audio jack (figure 2-8).
d
e
Tip (L)
Ring (R)
Sleeve (
)
3.5 mm Stereo Plug Connector
(unbalanced)
Figure 2-8 — Audio output connector
If you are daisy chaining, connect the other end of
the audio cable to the audio Input 2 connector on the
downstream switcher.
N
Contact closure/Autoswitching (Contact/Auto-SW) —
Contact closure — Connect a contact closure device to this
3-pole, 3.5 mm captive screw connector.
•
Pin 1 selects Input 1 when momentarily connected to
ground (pin 3).
VSW 2VGA A • Installation and Operation
2-9
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Installation and Operation, cont’d
•
Pin 2 selects Input 2 when momentarily connected to
ground (pin 3).
1
2
•
Ground connects to the ground wire (equipment
ground).
Simultaneously connecting both pins 1 and 2 to
ground (pin 3) turns autoswitching mode on.
N
Autoswitching —
Autoswitch mode must be disabled when daisy chaining
VSW 2VGA A switchers. If the autoswitch mode is
enabled, the switchers cannot be daisy chained.
N
RGsB and RsGsBs inputs and outputs occur in manual
mode only.
N
N
Autoswitching requires TTL level sync on pin 13 of the
15-pin HD connector.
Pins 1, 2, and Ground when jumpered/shorted together (as
shown at right) turn the autoswitching mode on. When
the autoswitching mode is on, the switcher automatically
switches to the input that has an active sync signal.
CONTACT
1
2
If both inputs have an active sync signal present, input
2 is selected, and the input 2 LED indicator lights. If no active
sync signal is present, the input 1 LED indicator still lights to
indicate that the unit is still powered on.
When the autoswitch mode is active, both daisy chaining
and the front panel's input toggle switch are disabled,
and the input cannot be manually switched. Any attempt
to toggle the switch while the switcher is in this mode
results in the flashing of the currently active input's
LED indicator. Contact closure is also disabled while in
autoswitch mode.
N
Setting the VSW 2VGA A Jumpers
If you plan to use the VSW I AAP and/or create a daisy
N
chain configuration, you must configure the switchers
before installing them in a rack or furniture and making
connections.
Daisy chaining VSW 2VGA A switchers requires you to check
and/or set internal jumpers in the switcher.
1.
If applicable, disconnect all power to the switcher and any
attached devices.
VSW 2VGA A • Installation and Operation
2-10
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2.
Remove the two screws on each side of the switcher
(figure 2-9). Remove the four connector nuts on the front
panel of the switcher. Lift the top cover off of the switcher.
INPU
VSW 2VGA
A
INPUT
1
2
Remove (4)
Screws
Remove (4)
Connector Nuts
Figure 2-9 — Removing the cover
FRONT PANEL
JMP4
JMP3
JMP1
JMP5 JMP6
Figure 2-10 — VSW 2VGA A jumper locations
3.
4.
Set the jumpers for the switcher. See figure 2-11.
Set the cover in place and resinstall the screws remove in
step 2.
There are five jumpers, numbered JMP1, and JMP3 thru JMP6,
that control daisy chaining on the VSW 2VGA A switcher (figure
2-10). Both data and power must be daisy chained from one
switcher to another.
VSW 2VGA A • Installation and Operation
2-11
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Installation and Operation, cont’d
OPEN
CLOSED
All jumpers are set open (disabled) by default.
Open or close the indicated jumpers in the table below,
as needed, to adjust the appropriate settings. See “Using
the VSW I AAP” and “Daisy chain configuration” in this
chapter for other jumper settings.
Pin 5 - Control Pin 9 - +5 VDC
Input 1
Input 2
Output
JMP 1
JMP 3
JMP 5
JMP 4
JMP 6
Figure 2-11 — Jumper positions
These jumpers enable or disable VGA connector pin 5 (control)
and VGA connector pin 9 (power) of the switcher inputs and
outputs. Close (install) the jumper for VGA connector pin 5
to daisy chain data to the next switcher, and close (install) the
jumper for VGA connector pin 9 to daisy chain power to the
next switcher.
When the switchers are not daisy chained together or used
with the VSW I AAP, all jumpers should be in the default
(open) position.
N
VSW 2VGA A • Installation and Operation
2-12
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Power connection
One power supply can power up to five daisy chained
switchers. Additional switchers require one or more power
Figure 2-12 shows how to wire the power connector.
Smooth
Ridges
A
A
SECTION A–A
3/16” (5 mm) Max.
(to ground)
Power Supply
Output Cord
Captive Screw
Connector
Figure 2-12 — Power connector wiring
The two power cord wires must be kept separate
while the power supply is plugged in. Remove
power before wiring.
C
When you are connecting the power supply, voltage
polarity is critical. Applying power with incorrect
voltage polarity could damage the power supply
and the VSW 2VGA A. Identify the power cord
negative (ground) lead by the ridges on the side of
the cord or a black heat shrink wrapping around it.
C
Strip the jacket to expose 3/16 inch (5 mm) of the
conductors. Do not tin the stripped power supply leads
before installing the captive screw connector. Tinned wires
are not as secure in the captive screw connectors and could
be pulled out.
N
To verify the polarity before connection, check the no load
power supply output with a voltmeter.
The maximum number of switchers that can be daisy
chained is limited by several factors: power consumption,
cable lengths, and the overall distortion of the video and
audio signals.
N
VSW 2VGA A • Installation and Operation
2-13
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Installation and Operation, cont’d
Operation
Apply power and the input signals. The video and audio
output connectors, including the Loop Thru Input 1 connector,
should output signals.
Input selection
There are three ways to select between Input 1 and Input 2:
•
Toggle the front panel input select switch up (Input 1) or
down (Input 2).
•
•
Use the rear panel contact closure capability.
Press the Show Me button on the VSW I AAP to select the
input on the connected VSW 2VGA A switcher.
Using the VSW I AAP
The VSW I AAP can be used on the inputs of a single switcher
or on the inputs of multiple switchers in a daisy chain
configuration.
Setting the VSW I AAP jumpers
A jumper on the VSW I AAP may need to be shifted from
jumper J6 (the default position) to J5, depending on the
application. See the following illustration and table.
J5
J6
Jumper installed Switcher compatibility
J6
J5
VSW 2VGA A (Input 1)
VSW 2VGA A (Input 2)
Single switcher example
The following illustration is an example of a single switcher
configuration.
VSW 2VGA A • Installation and Operation
2-14
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SHOW ME
VSW I AAP
1
2
VSW I AAP
VSW I AAP
SHOW ME
SHOW ME
AUDIO
AUDIO
VSW
I
AAP
VSW I AAP
COMPUTER
COMPUTER
Out
Internal Jumper Settings
Input 1
Input 2
IPUT
1
PUT
2
Jumper Setting
1
2
VSW 2VGA A
Out
VSW 2VGA
A
Closed
JMP1
JMP3
JMP4
Closed
Closed
Open
12 V Power
Supply*
JMP5
JMP6
Open
Figure 2-13 — Single switcher configuration
Press the Show Me button on the VSW I AAP to select the
corresponding input on the VSW 2VGA A.
Daisy chain configuration
Multiple VSW 2VGA A switchers can be daisy chained together
in a loop configuration or a tree comfiguration.
Daisy chaining uses all pins and wires of a standard VGA
cable. Not all VGA cables include all pins and wires.
Ensure that the VGA cable that you use has all 15 pins
connected.
N
Loop configuration
In a loop configuration, the output of each VSW 2VGA A is
connected to Input 2 of the next VSW 2VGA A switcher. This
repetition of one switcher's output to another switcher's input
can be repeated for up to a maximum of 10 switchers in a daisy
chain. The output of the first switcher is connected to a display.
Source signals are connected to Input 1 of each VSW 2VGA A
switcher either directly or through the VSW I AAP interface.
Select the source by toggling to Input 1 on the VSW 2VGA
A's front panel (or through contact closure on the rear panel)
or by pressing the VSW I AAP's Show Me button for the
corresponding switcher.
•
Up to 10 switchers can be daisy chained in this
configuration without any signal degradation.
•
A power supply is required for every 5 switchers.
VSW 2VGA A • Installation and Operation
2-15
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Installation and Operation, cont’d
•
•
Configure the jumpers on each VSW 2VGA A according to
the following example.
The VSW I AAP is configured for a loop configuration by
default.
In a loop configuration, the "show me" feature can be used
without a VSW I AAP control panel. Select Input 1 using
N
c
Panel Features") or the rear panel contact closure control
(see item in "Rear Panel Features") to issue the "show
e
me" control signal.
Loop configuration example
The illustration on the following page is an example of daisy
chaining using a loop configuration.
VSW 2VGA A • Installation and Operation
2-16
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Figure 2-14 — Loop configuration
VSW 2VGA A • Installation and Operation
2-17
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Installation and Operation, cont’d
Tree configuration
In a tree configuration, the output of each VSW 2VGA A
switcher is connected to input 1 or input 2 of the next switcher.
This repetition of one switcher's output to another switcher's
input can be repeated for up to a maximum of 10 switchers in
a daisy chain. The output of the last switcher is connected to a
display.
Source signals are connected to input 1 and input 2 of each VSW
2VGA A switcher at the top of the tree through a VSW I AAP
interface. Select the source by pressing the VSW I AAP's Show
Me button for the corresponding switcher.
•
Switchers can be daisy chained in this configuration up to
ten levels deep without any signal degradation.
•
A power supply is required for each switcher in the
chain that has its output connected to input 1 of the next
switcher.
•
•
Sources can only be selected and connected to the
switcher through the VSW I AAP interface.
Each VSW I AAP must be configured for the tree
for additional information.
Tree configuration example
The following illustration is a simple example of daisy chaining
using a tree configuration.
VSW 2VGA A • Installation and Operation
2-18
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1
2
3
4
VSW I AAP
VSW I AAP
VSW I AAP
VSW I AAP
SHOW ME
SHOW ME
SHOW ME
SHOW ME
AUDIO
AUDIO
AUDIO
AUDIO
VSW
I
AAP
VSW I AAP
COMPUTER
COMPUTER
VSW
I
AAP
VSW I AAP
COMPUTER
COMPUTER
Out
Out
Input 1
Input 2
Input 1
Input 2
PUT
1
INPUT
2
INPUT
1
IPUT
2
1
2
1
2
B
B
VSW 2VGA
A
VSW 2VGA
A
Out
12 V Power
Supply*
Input 1
Input 2
INPUT
1
NPUT
2
1
2
A
VSW 2VGA
A
VSW 2VGA A Out
12 V Power
Supply
* Every switcher connected
to Input 1 of another
switcher must have its
own power supply.
Projector
Internal Jumper Settings
A
B
Jumper Setting
Jumper Setting
Closed
Closed
JMP1
JMP3
JMP4
JMP1
JMP3
JMP4
Closed
Closed
Closed
Closed
Closed
Closed
Open
JMP5
JMP6
JMP5
JMP6
Open
Figure 2-15 — Tree configuration
VSW 2VGA A • Installation and Operation
2-19
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Installation and Operation, cont’d
VSW 2VGA A • Installation and Operation
2-20
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VSW 2VGA A
Appendix A
A
Specifications, Part Numbers,
and Accessories
Specifications
Included Parts
Accessories
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Specifications, Part Numbers, and Accessories
Specifications
Video
Gain................................................. Unity
Bandwidth...................................... 300 MHz (-3 dB)
Video input and loop through
Number/signal type..................... 2 VGA-QXGA RGBHV, RGBS, RGsB*,
RsGsBs*, HDTV component video* input
1 VGA-QXGA RGBHV, RGBS, RGsB,
RsGsBs, HDTV component video* local
monitor loop-through
RGsB, RsGsBs, and HDTV component video inputs and
outputs work in manual mode only. Autoswitching requires
TTL level sync on pin 13 of the 15-pin HD connector.
N
Connectors ..................................... 3 female 15-pin HD
Pin connections.............................. ID bits on pins 4, 11, 12, 15 from inputs 1
and 2: passed to main output
Pin 9 of input 1: floating
Pin 9 of input 2: used for the Show-Me
feature
Nominal level ................................ 1.0 Vp-p for Y of component video
0.7 Vp-p for RGB and for R-Y and B-Y of
component video
Minimum/maximum levels........ Analog: 0.4 V to 1.8 Vp-p with no offset
Impedance...................................... 75 ohms
Horizontal frequency.................... 15 kHz to 145 kHz
Vertical frequency.......................... 30 Hz to 170 Hz
Video output
Number/signal type..................... 1 VGA-QXGA RGBHV, RGBS, RGsB*,
RsGsBs*, HDTV component video*
(follows input type)
Connectors ..................................... 1 female 15-pin HD
Nominal level ................................ 1.0 Vp-p for Y of component video
0.7 Vp-p for RGB and for R-Y and B-Y of
component video
Minimum/maximum levels........ 0.4 V to 1.8 Vp-p (follows input)
Impedance...................................... 75 ohms
ID bits are passed through from VGA inputs to the VGA output.
N
VSW 2VGA A • Specifications, Part Numbers, and Accessories
A-2
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Sync
Input type....................................... RGBHV, RGBS, RGsB*, RsGsBs*, bi-level
and tri-level (HDTV) component video
sync
Output type.................................... RGBHV, RGBS, RGsB*, RsGsBs*, bi-level
and tri-level (HDTV) component video
sync (follows input)
Input level ...................................... 1.8 V to 5.0 Vp-p
Output level................................... TTL: 5.0 V p-p, unterminated
Input impedance ........................... 510 ohms
Output impedance........................ 50 ohms
Max. input voltage........................ 5.0 Vp-p
Max. rise/fall time ........................ 40 ns
Polarity............................................ Positive or negative (follows input)
Audio
Gain................................................. Unbalanced output: 0 dB
Frequency response ...................... 20 Hz to 20 kHz, 0.05 dB
THD + Noise.................................. 0.002% @ 1 kHz at nominal level (-10 dBV)
S/N.................................................. 94 dB at maximum output (unweighted)
Crosstalk......................................... -50 dB @ 20 kHz, -75 dB @ 1 kHz and
below 60 Hz
Stereo channel separation ............ 96 dB @ 1 kHz
Audio input
Number/signal type..................... 2 stereo, unbalanced
Connectors ..................................... (2) 3.5 mm mini audio jacks (tip, ring,
sleeve)
Impedance...................................... 22k ohms unbalanced, AC coupled
Nominal level ................................ -10 dBV (316 mVrms)
Maximum level.............................. +9 dBV, (unbalanced) at 1% THD+N
0 dBu = 0.775 Vrms, 0 dBV = 1 Vrms, 0 dBV ≈ 2 dBu
N
Audio output
Number/signal type..................... 1 stereo, unbalanced
Connectors ..................................... (1) 3.5 mm mini audio jack (tip, ring,
sleeve)
VSW 2VGA A • Specifications, Part Numbers, and Accessories
A-3
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Specifications, Part Numbers, and Accessories
Impedance...................................... 50 ohms unbalanced
Gain error ....................................... 0.1 dB channel to channel
Maximum level (Hi-Z) ................. >+9 dBV, unbalanced at 1% THD+N
Maximum level (600 ohm)........... >+7 dBV, unbalanced at 1% THD+N
Control/remote — switcher
Contact closure .............................. (1) 3.5 mm captive screw connector, 3 pole
for momentary contact
Contact closure pin configurations. 1 = input 1 select, 2 = input 2 select, 3 =
GND
Shorting all three pins together enables
autoswitch mode.
Loop signal..................................... Momentary low, 250 µs
General
External power supply................. 100 VAC to 240 VAC, 50-60 Hz, external; to
12 VDC, 1 A (max.), regulated
Power input requirements........... 12 VDC, 0.1 A
Temperature/humidity................ Storage: -40 to +158 °F (-40 to +70 °C) /
10% to 90%, noncondensing
Operating: +32 to +122 °F (0 to +50 °C) /
10% to 90%, noncondensing
Cooling ........................................... Convection, no vents
Mounting
Rack mount........................ Yes, with optional 1U rack shelf
Furniture mount................ Yes, with optional under-desk mounting
kit or through-desk mounting kit
Pole mount......................... Yes, with optional pole mount kit
Enclosure type ............................... Metal
Enclosure dimensions................... 1.0" H x 4.3" W x 3.0" D (quarter rack
wide)
2.5 cm H x 10.9 cm W x 7.6 cm D
(Depth excludes connectors.)
Product weight .............................. 0.5 lb (0.3 kg)
Shipping weight ............................ 3 lbs (2 kg)
Vibration......................................... ISTA 1A in carton (International Safe
Transit Association)
Regulatory compliance
Listings................................ CE, c-UL, UL
Compliances....................... CE, C-tick, FCC Class A, ICES, VCCI
VSW 2VGA A • Specifications, Part Numbers, and Accessories
A-4
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MTBF............................................... 30,000 hours
Warranty......................................... 3 years parts and labor
All nominal levels are at 10%.
N
N
Specifications are subject to change without notice.
Included Parts
These items are included in each order for a VSW 2VGA A:
Included parts
Part number
to reorder
VSW 2VGA A
60-758-01
12 VDC, 1A external power supply
3.5 mm 3-pole captive screw connector
3.5 mm 2-pole captive screw connector
VSW 2VGA A Setup Guide
70-775-01
Accessories
Accessories
Part number
70-529-11
VSW I AAP — black
VSW I AAP — white
VSW I AAP — RAL9010 white
70-529-21
70-529-51
RSB 123 —
60-604-21
1U basic rack shelf
RSF 123 —
1U rack shelf kit
60-190-20
60-190-10
RSU 126 —
1U 6" deep universal rack shelf kit
RSB 126 — 1U 6" deep basic rack shelf
RSU 129 — 1U universal rack shelf kit
RSB 129 — 1U basic rack shelf
60-604-11
60-190-01
60-604-02
70-077-01
70-077-02
MBU 125 — 1U under-desk mount kit
MBD 129 — 1U through-desk mount kit
VSW 2VGA A • Specifications, Part Numbers, and Accessories
A-5
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Specifications, Part Numbers, Accessories, cont’d
Cable Accessories
Part number
26-490-xx
VGA with audio cables
VGA to BNC-5 female cables
26-531-xx
(SY VGA), 0.5' - 100' (0.15 m - 30.4 m)
VGA to BNC-5 male cables
26-533-xx
(SY VGA), 0.5' - 100' (0.15 m - 30.4 m)
MSR 6 Adapter, 6" (0.15 m)
26-592-01
3.5 mm Mini Stereo-HQ/10
100-331-01
VSW 2VGA A • Specifications, Part Numbers, and Accessories
A-6
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VSW 2VGA A • Specifications, Part Numbers, and Accessories
A-7
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Specifications, Part Numbers, Accessories, cont’d
VSW 2VGA A • Specifications, Part Numbers, and Accessories
A-8
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Extron 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,
and Central America:
Extron USA
1001 East Ball Road
Anaheim, CA 92805
U.S.A.
Japan:
Extron Japan
Kyodo Building, 16 Ichibancho
Chiyoda-ku, Tokyo 102-0082
Japan
China:
Europe, Africa, and the Middle East:
Extron Europe
Hanzeboulevard 10
3825 PH Amersfoort
The Netherlands
Extron China
686 Ronghua Road
Songjiang District
Shanghai 201611
China
Asia:
Middle East:
Extron Asia
Extron Middle East
Dubai Airport Free Zone
F12, PO Box 293666
United Arab Emirates, Dubai
135 Joo Seng Road #04-01
PM Industrial Bldg.
Singapore 368363
Singapore
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.
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Extron USA-West Extron USA-East Extron Europe
Extron Asia
Extron Japan
Extron China
Extron Middle East
Headquarters
+800.633.9876
+800.3987.6673
+800.7339.8766
+81.3.3511.7655
+81.3.3511.7656 FAX
+400.883.1568
+971.4.2991800
+971.4.2991880 FAX
Inside USA / Canada Only
Inside Europe Only
Inside Asia Only
Inside China Only
+800.633.9876
Inside USA / Canada Only
+1.919.863.1794
+1.919.863.1797 FAX
+31.33.453.4040
+31.33.453.4050 FAX
+65.6383.4400
+65.6383.4664 FAX
+86.21.3760.1568
+86.21.3760.1566 FAX
+1.714.491.1500
+1.714.491.1517 FAX
© 2009 Extron Electronics. All rights reserved.
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