switchers
SW USB Series
Two and four inpuT usb swiTchers
■ USB 2.0 compatible
■ Four port output hub
■ Port Status LEDs
■ RS-232 and contact closure remote
control
■ RS-232 pass-through
■ Front panel security lockout
■ Host and Peripheral Emulation Mode
- SW4 USB Plus model
■ Rack-mountable 1U high metal
enclosure
SW2 USB
SW4 USB Plus
The Extron SW2 USB and SW4 USB are two- and four- input USB switchers that
allow switching between multiple host devices and multiple USB peripherals.
Integration-oriented features include: port status indication, RS-232 pass-through,
front panel security lockout, and multiple control points. The SW USB Series is
ideal for applications such as KVM, interactive whiteboard, and annotator-based
applications in education, judicial, or corporate settings, or wherever reliable,
multi-I/O USB switching is needed.
www.extron.com
DesCrIPtION
USB SWITCHED INPUTS
USB OUTPUTS HUB
Video:
RED
Channel
Horizontal
Sync
Pulse
Active Video
Extron
SW4 USB
USB
Interactive Whiteboard
PCPCPCPC
USB
Features
The SW USB Series are two- and four-input USB switchers that provide
■ USB 2.0 compatible – Supports 480 Mbps high speed
integrator-friendly solutions for implementing USB 2.0 compatible
switching in today’s A/V environments. A number of specialized
features help further streamline integration, such as: port status
■ Four port output hub –Allows simultaneous connection to multiple
indication, RS-232 pass-through, front panel security lockout, and
multiple control points.
All of the SW USB Series switchers act as active USB hubs, supplying
5V, 500mA to attached devices, per USB specification. In addition, the
■ Port Status LEDs – Provides visual indication of port activity for
switchers are USB 2.0 compatible, and are backwardly-compatible with
all previous USB data rate specifications, including low speed 1.5 Mbps,
■ Multiple control points – Operation via front panel, RS-232, and
full speed 12 Mbps, and hi-speed 480 Mbps.
RS-232 pass-through reduces RS-232 control port requirements by
processing SIS commands within the SW USB while also passing them
■ RS-232 pass-through – Reduces RS-232 control port requirements
through to other controllable Extron audio and video switchers.
The SW4 USB Plus model features Host and Peripheral Emulation Mode,
which provides “keep alive” functionality by continuously mimicking
■ Front panel security lockout – Prevents unauthorized use in non-
host and keyboard/mouse device communications within the switcher.
This emulation eliminates the need for enumeration, and reduces the
chance of failed device communications throughout the switching
■ Host and Peripheral Emulation Mode – SW4 USB Plus model –
process.
The SW USB Series incorporates rack mountable, 1U, half-rack width
enclosures for simplified integration. All models include an external,
universal power supply for worldwide power compatibility.
■ Rack-mountable 1U, half rack width metal enclosure
communications and is backwards compatible with all prior USB
versions.
peripheral devices such as mass storage devices, keyboards, mice,
or other HID – Human Interface Devices. Attached devices can be
powered via the 5V, 500mA current provided on each output.
enumerated peripherals and all connected and active host devices.
contact closure offers integration flexibility into a variety of control
environments.
by processing SIS commands within the SW USB while also passing
them through to other controllable Extron video switchers.
secure environments. In lockout mode, a special button combination
is required to operate the switcher from the front panel controller.
Offers increased system reliability by emulating uninterrupted
connection between host and keyboard/mouse devices. This
selectable feature enables devices to “keep alive” when switching
between inputs.
SW USB with Interactive Whiteboards
Extron’s SW USB switchers are well suited for implementation
in interactive whiteboard applications for both corporate and
education environments. These popular applications will benefit
from the high number of integrator-friendly features, offering
streamlined design capabilities and increased reliability.
Simplified operation and control
• Variety of control locations offers exibility and convenience –
Front panel and contact closure for operation in the most basic
systems and full RS-232 integration through MediaLink, IP Link,
or other third party control systems.
• RS-232 pass-through offers increased exibility, allowing other
Extron controllable switchers to be incorporated into designs
that require additional signal switching.
System reliability
• Host and peripheral emulation in the SW4 USB Plus provides
“keep alive” functionality by continuously mimicking host and
keyboard/mouse device communications within the switcher.
This emulation eliminates the need for enumeration, and
reduces the chance of failed device communications throughout
the switching process.
■ External universal power supply included
• Port Status LEDs provide real-time visual indication of
connectivity and operational state of attached hosts and
peripherals
usB termINOlOgy
1
43
2
5 4 3 2 1
4 3 2 1
5 4 3 2 1
Type AType B
Mini-A
Mini-B
USB – Universal Serial Bus – A popular serial bus interface standard that
allows communication between a host and one, or many, peripheral
devices. USB 1.0 was introduced in 1995, and the current version, 2.0,
was released in 2000.
Host – A device, usually a computer, that initiates communications
transfer with attached downstream devices/peripherals. Hosts utilize
Type A connectors.
Peripheral – Downstream devices, such as keyboards, mice,
and other interfaces that communicate with the attached host.
Multiple peripherals can be actively connected within a system with
simultaneous communication taking place. Peripheral devices typically
utilize Type B connectors.
Enumeration – The discovery process in which device recognition and
configuration takes place. This process is repeated each time the USB
host is restarted.
Speed/Data Rate – USB currently supports three speeds, or data
rates. Low speed – 1.5 Mbps, Full Speed – 12 Mbps, and High Speed –
480 Mbps.
Device Class – Categories defined by the Device Working Group of the
USB Implementers Forum that describe usage and operation. Drivers
are utilized to support functionality of these classes. Two common
classes are Mass Storage and HID – Human Interface Devices.
Mass Storage – Devices such as thumb drives, external hard drives,
and digital cameras
HID – Human Interface Devices include keyboards, mice, joysticks,
annotators, and interactive whiteboards
Connector types – Multiple connector types exist, but at the most
basic levels, Type A connectors are utilized on Host devices, while
Type B connectors are found on Peripherals.
Hub – Expands the number of devices to which a host can
communicate. Powered or “active” hubs provide 5V power for attached
peripherals.
sPeCIFICatIONs
USB
USB specification ............................. USB 2.0 compatible
USB data rates ................................. Low speed (1.5 Mbps), full speed
USB inpUt
Connectors
SW2 USB ...................................... 2 female USB type B
SW4 USB, SW4 USB Plus .............. 4 female USB type B
USB oUtpUt
Connectors ..................................... 4 female USB type A
Control/remote — SwitCher
Serial control port ........................... (1) RS-232, 3.5 mm captive screw
Baud rate and protocol ................... 9600 baud, 8 data bits, 1 stop bit, no parity
Serial control pin configurations
RS-232 ......................................... 1 = TX, 2 = RX, 3 = GND
RS-232 pass-through .................... 1 = TX, 3 = GND
Contact closure
SW2 USB ...................................... (1) 3.5 mm captive screw connector, 3 pole
SW4 USB, SW4 USB Plus .............. (1) 3.5 mm captive screw connector, 5 pole
Contact closure pin configuration
SW2 USB ...................................... 1 = input 1, 2 = input 2, 3 = GND
SW4 USB, SW4 USB Plus .............. 1 = input 1, 2 = input 2, 3 = input 3,
Program control .............................. Extron’s Simple Instruction Set (SIS™)
(12 Mbps), high speed (480 Mbps)
connector, 3 pole
(1) RS-232 pass-through, 3.5 mm captive
screw connector, 3 pole
4 = input 4, 5 = GND
General
External power supply ..................... 100 VAC to 240 VAC, 50/60 Hz, external; to
12 VDC, 2 A, regulated
Power input requirements ............... 12 VDC, 1.5 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, 9" deep rack shelf
(RSU 129, #60-190-01;
RSB 129, #60-604-01); or 1U, 6" deep rack
shelf (RSU ad126, #60-190-10;
RSB 126, #60-604-10)
Furniture mount .......................... Yes, with optional Under-Desk Mounting Kit
Enclosure type ................................. Metal
Enclosure dimensions ......................
Product weight ............................... 2.0 lbs (0.9 kg)
Shipping weight .............................. 3 lbs (2 kg)
Vibration ......................................... ISTA 1A in carton (International Safe Transit
Listings ............................................ UL, CUL
Compliances ................................... CE, FCC Class A, VCCI, AS/NZS, ICES
MTBF .............................................. 30,000 hours
Warranty ......................................... 3 years parts and labor
NOTE: All nominal levels are at ±10%.
Model Version Description Part Number
SW2 USB Two Input USB ............................................... 60-952-01
SW4 USB Four Input USB ............................................... 60-953-01
SW4 USB Plus Four Input USB with Emulation ....................... 60-954-01
Specifications are subject to change without notice.
1.6" H x 8.6" W x 6.0" D (1U high, half rack
wide) (4.1 cm H x 21.8 cm W x 15.2 cm D)
Association)
aPPlICatION DIagram
Extron USA - West
Headquarters
+800.633.9876
Inside USA / Canada Only
+1.714 .491.1500
+1.714 .491.1517 FAX
Extron USA - East
+800.633.9876
Inside USA / Canada Only
+1.919.863.1794
+1.919.863.1797 FA X
Extron Europe
+800.3987.6673
Inside Europe Only
+31.33.453.4040
+31.33.453.4050 FA X
Extron Asia
+800.7339.8766
Inside Asia Only
+65.6383.4400
+65.6383.4664 FAX
Extron Japan
+81.3.3511.7655
+81.3.3511.7656 FAX
Extron China
+400.883.1568
Inside China Only
+86.21.3760.1568
+86.21.3760.1566 FAX
Extron Dubai
+971.4.2991800
+971.4.2991880 FAX
SW4 VGA Ars
Extron
SW4 USB Plus
USB Switcher
USB
USB
RS-232
Loop Out
RS-232
VGA
Outputs
VGA
VGA Out
Annotator
Projector
Control S ystem
with RS-2 32
PC
Laptop
Visualizer
Extron
SW4 VGA Ar s
VGA/Audio Switcher
SW4 USB Plus
USB SWITCHER
EXEC
MODE
1
2
3
4
1
2
3
4
INPUT
1
2
3
4
OUTPUT
ACTIVE USB
USB SWITCHED INPUTS
USB OUTPUTS HUB
Tx
Tx Rx
RS-232
CONTACT
1
2
3
4
RS-232
PASS THRU
USB 3
USB 1
USB 2
USB 4
1.5A MAX
12V
POWER
+
PC 1
PC 2
PC 3
PC 4
SW4 USB
USB SWITCHER
EXEC
MODE
1
2
3
4
1
2
3
4
INPUT
1
2
3
4
OUTPUT
ACTIVE USB
USB SWITCHED INPUTS
USB OUTPUTS HUB
Tx
Tx Rx
RS-232
CONTACT
1
2
RS-232
PASS THRU
USB 3
USB 1
USB 2
USB 4
1.5A MAX
12V
POWER
+
PC 1
PC 2
USB SWITCHED INPUTS
USB OUTPUTS HUB
Tx
Tx Rx
RS-232
RS-232
PASS THRU
USB 3
USB 1
USB 2
USB 4
1.5A MAX
12V
POWER
+
PC 1
PC 2
PC 3
PC 4
MOUSE
1 2
ON
KEYBOARD
ON
OFF
HOST
EMULATION
CONTACT
1
2
3
4
SW2 USB
USB SWITCHER
EXEC
MODE
1
2
1
2
3
4
INPUT
1
2
3
4
OUTPUT
ACTIVE USB
PaNel DrawINgs
SW4 USB Plus - Front SW4 USB - Front
SW4 USB Plus - Back SW4 USB - Back
SW2 USB - Front
© 2008 Extron Electronics. All rights reserved. All trademarks mentioned are the property of their respective owners.
SW2 USB - Back
08-06
68-1605-01
REV. A
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