ATEN CS176A User manual

USB DVI KVMP™ Switch
CS176A / CS1764A
User Manual
www.aten.com

CS176A / CS1764A User Manual
ii
FCC Information
FEDERAL COMMUNICATIONS COMMISSION INTERFERENCE
STATEMENT: This equipment has been tested and found to comply with the
limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. These
limits are designed to provide reasonable protection against harmful
interference when the equipment is operated in a commercial environment.
This equipment generates, uses, and can radiate radio frequency energy and, if
not installed and used in accordance with the instruction manual, may cause
harmful interference to radio communications. Operation of this equipment in
a residential area is likely to cause harmful interference in which case the user
will be required to correct the interference at his own expense.
FCC Caution: Any changes or modifications not expressly approved by the
party responsible for compliance could void the user's authority to operate this
equipment.
Warning: Operation of this equipment in a residential environment could
cause radio interference.
This device complies with 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.
Achtung: Der Gebrauch dieses Geräts in Wohnumgebung kann
Funkstörungen verursachen.
KCC Statement
RoHS
This product is RoHS compliant.

CS176A / CS1764A User Manual
iii
User Information
Online Registration
Be sure to register your product at our online support center:
Telephone Support
For telephone support, call this number:
User Notice
All information, documentation, and specifications contained in this manual
are subject to change without prior notification by the manufacturer. The
manufacturer makes no representations or warranties, either expressed or
implied, with respect to the contents hereof and specifically disclaims any
warranties as to merchantability or fitness for any particular purpose. Any of
the manufacturer's software described in this manual is sold or licensed as is.
Should the programs prove defective following their purchase, the buyer (and
not the manufacturer, its distributor, or its dealer), assumes the entire cost of all
necessary servicing, repair and any incidental or consequential damages
resulting from any defect in the software.
The manufacturer of this system is not responsible for any radio and/or TV
interference caused by unauthorized modifications to this device. It is the
responsibility of the user to correct such interference.
The manufacturer is not responsible for any damage incurred in the operation
of this system if the correct operational voltage setting was not selected prior
to operation. PLEASE VERIFY THAT THE VOLTAGE SETTING IS
CORRECT BEFORE USE.
International http://eservice.aten.com
International
886-2-8692-6959
China
86-400-810-0-810
Japan
81-3-5615-5811
Korea
82-2-467-6789
North America
1-888-999-ATEN ext 4988
1-949-428-1111

CS176A / CS1764A User Manual
iv
Package Contents
The CS176A / CS1764A package consists of:
1 CS176A / CS1764A USB DVI KVMP
TM
Switch
2 Custom KVM Cables sets (DVI-D) (CS1762
A )
4 Custom KVM Cable Sets (DVI-D) (CS1764
A )
1 Power Adapter
1 User Instructions*
Check to make sure that all the components are present and that nothing got
damaged in shipping. If you encounter a problem, contact your dealer.
Read this manual thoroughly and follow the installation and operation
procedures carefully to prevent any damage to the unit, and/or any of the
devices connected to it.
*Features may have been added to the CS176A / CS1764A since this manual
was printed. Please visit our website to download the most up-to-date version
of the manual.

CS176A / CS1764A User Manual
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Contents
FCC Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ii
RoHS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ii
User Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .iii
Online Registration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .iii
Telephone Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .iii
User Notice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .iii
Package Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iv
About this Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii
Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .viii
Product Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .viii
1. Introduction
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Hardware Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Console . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Computers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Operating Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
CS1762
A Front View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
CS1764
A Front View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
CS1762
A Rear View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
CS1764
A Rear View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2. Hardware Setup
Cable Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Installation Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3. Basic Operation
Manual Switching . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Mouse Port-switching . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Hot Plugging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Powering Off and Restarting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Port ID Numbering 17
Alternate Manual Port Selection Settings . . . . . . . . . . . . . . . . . . . . . . . . .17
4. Hotkey Operation
Port Switching . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Cycling Through the Ports. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Going Directly to a Port 20
Auto Scanning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Hotkey Setting Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

CS176A / CS1764A User Manual
vi
Invoking HSM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Alternate HSM Invocation Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Alternate Port Switching Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Keyboard Operating Platform . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
List Switch Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
USB Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Keyboard Language . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Hotkey Buzzer Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Port Switching Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Firmware Upgrade Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Restore Default Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Video DynaSync . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Alternate Manual Port Selection Settings . . . . . . . . . . . . . . . . . . . . . . 26
Mouse Emulation Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Mouse Port-switching . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
SPC Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Power on Detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
HSM Summary Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
5. Keyboard Emulation
Mac Keyboard. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Sun Keyboard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
6. The Firmware Upgrade Utility
Before you Begin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Starting the Upgrade . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Upgrade Succeeded . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Upgrade Failed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Appendix
Safety Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Technical Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
International . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
North America . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Hotkey Default Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Limited Warranty. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

CS176A / CS1764A User Manual
vii
About this Manual
This User Manual is provided to help you get the most from your CS176A /
CS1764A. It covers all aspects of installation, configuration and operation. An
overview of the information found in the manual is provided below.
Chapter 1, Introduction, introduces you to the CS176A / CS1764A
system. Its purpose, features and benefits are presented, and its front and back
panel components are described.
Chapter 2, Hardware Setup, describes how to set up your installation. The
necessary steps are provided.
Chapter 3, Basic Operation, explains the fundamental concepts involved
in operating the CS176A / CS1764A.
Chapter 4, Hotkey Operation, details all of the concepts and procedures
involved in the Hotkey operation of your CS176A / CS1764A installation.
Chapter 5, Keyboard Emulation, provides tables that list the PC to Mac
and PC to Sun keyboard emulation mappings.
Chapter 6, The Firmware Upgrade Utility, explains how to upgrade the
CS176A / CS1764A's firmware with the latest available versions.
An Appendix, provides specifications and other technical information
regarding the CS176A / CS1764A.

CS176A / CS1764A User Manual
viii
Conventions
This manual uses the following conventions:
Product Information
For information about all ATEN products and how they can help you connect
without limits, visit ATEN on the Web or contact an ATEN Authorized
Reseller. Visit ATEN on the Web for a list of locations and telephone numbers:
Monospaced Indicates text that you should key in.
[ ] Indicates keys you should press. For example, [Enter] means to
press the Enter key. If keys need to be chorded, they appear
together in the same bracket with a plus sign between them:
[Ctrl+Alt].
1. Numbered lists represent procedures with sequential steps.
♦Bullet lists provide information, but do not involve sequential steps.
→Indicates selecting the option (on a menu or dialog box, for
example), that comes next. For example, Start
→ Run means to
open the Start menu, and then select Run.
Indicates critical information.
International http://www.aten.com
North America http://www.aten-usa.com

1
Chapter 1
Introduction
Overview
The CS1762 A / CS1764 A USB KVMP
TM
Switch charts a revolutionary new
direction in KVM (Keyboard, Video, Mouse) switch functionality by
combining a 2/4 port KVM switch with a 2 port USB hub at the same time as
providing an interface for a Digital Visual Interface (DVI) monitor. In addition,
CS1762
A / CS1764 A comes with ATEN’s new Video DynaSync
TM
technology,
which eliminates boot-up display problems and optimizes resolution, and
power on detection, which means if one computer is powered off, the CS1762
A
/ CS1764
A will automatically switch to the next powered-on computer.
As a KVM switch, the CS1762
A / CS1764 A allows users to access two or four
computers from a single USB keyboard, USB mouse, and monitor console. As
a USB 2.0 hub, it permits each computer to access any peripherals connected
to the hub on a one-computer-at-a-time basis.
The unit’s independent switching feature, allows the KVM focus to be on one
computer while the USB peripheral focus is on another. This eliminate the need
to purchase a separate USB hub as well as the need to purchase separate stand-
alone peripheral sharers.
The CS1762
A / CS1764 A further improves on previous designs with DVI
connectors, and the transfer of keyboard and mouse data to the computers via
a fast, reliable USB connection. DVI supports both digital video input (flat
panel displays, data projectors, plasma displays, digital TVs and set-top boxes)
and analog video input (traditional monitors and TVs).
The CS1762
A / CS1764 A is audio enabled. A single microphone (CS1762 A ) /
Two microphones (CS1764
A ) can provide audio input to each of the
computers, and you can listen to the audio output of each computer on a single
set of speakers (CS1762
A ) / two sets of speakers (CS1764 A ), on a one-
computer-at-a-time basis. As with the USB peripherals, the audio focus can be
independent of the KVM focus.
Setup is fast and easy; simply plug cables into their appropriate ports. There is
no software to configure, no installation routines, and no incompatibility
problems. Since the CS1762
A / CS1764 A intercepts keyboard input directly, it
will work on multiple computing platforms (PC (x86/x64), Macintosh
PowerPC, and Sun Microsystems Sparc).

CS1762 A / CS1764 A User Manual
2
There are three convenient methods to access the computers: port selection
pushbuttons located on the unit’s front panel; hotkey combinations entered
from the keyboard; and the very latest in mouse port-switching – simply
double-click on the scroll wheel of a USB mouse to change ports.
There is no better way to save time and money than with a CS1762
A / CS1764 A
installation. Since a single console manages all of the computers, the CS1762
A
/ CS1764
A setup: eliminates the expense of having to purchase separate
console components for each computer; saves all the space those extra
components would take up; saves on energy costs; and eliminates the
inconvenience and wasted effort involved in constantly moving from one
computer to another.

Chapter 1. Introduction
3
Features
One USB console controls two (CS1762 A ) or four (CS1764 A ) DVI
computers and two additional USB 2.0 devices
2-port USB 2.0 hub built in
Fully compliant with the USB 2.0 specification
Computer selection via front panel pushbuttons, hotkeys, and mouse
Audio enabled – full bass response provides a rich experience for 2.1
channel surround sound systems
Multiplatform support – Windows 2000/XP/Vista/7, Linux, Mac, and
Sun*
Supports widescreen resolutions
Superior video quality – 1920 x 1200
Independent switching of KVM, USB, and Audio focus
DVI digital and analog monitor support – fully compliant with the DVI
specifications
HDCP compliant
Video DynaSync
TM
– exclusive ATEN technology optimizes display
resolution and eliminates boot-up display problems
Power on detection – if one computer is powered off, the switch will
automatically switch to the next powered-on computer
Console mouse port emulation/bypass feature supports most mouse
drivers and multifunction mice
Complete keyboard emulation for error-free booting
Mac/Sun keyboard support and emulation*
Multilingual keyboard mapping – supports English, Japanese, and French
keyboards
Auto Scan Mode for monitoring all computers
Firmware upgradable
Note: 1. See Hotkey Default Settings, page 46, for full details.
2. PC keyboard combinations emulate Mac/Sun keyboards; Mac/
Sun keyboard work only with their own computers

CS1762 A / CS1764 A User Manual
4
Hardware Requirements
Console
A DVI compatible monitor capable of the highest possible resolution
A USB mouse
A USB keyboard
Microphone and speakers (optional)
Computers
The following equipment must be available on each computer:
A DVI port
Note: The quality of the display is affected by the quality of the DVI
display card. For best results, we recommend you purchase a high
quality product.
Type A USB port
Audio ports (optional)
Cables
Only 1.8m DVI-D KVM cable sets, which are specifically designed to work
with this switch, may be used to link to the computers. Two (CS1762
A ) or four
(CS1764
A ) cable sets are provided with this package.
Note: The quality of the display is affected by the quality and length of the
cables. If you need additional cable sets, please contact your dealer to
purchase the appropriate ones for your switch.

Chapter 1. Introduction
5
Operating Systems
Supported operating systems are shown in the table, below:
Note: 1. Supports Linux Kernel 2.6 and higher.
2. The CS1762
A / CS1764 A has a built-in USB 2.0 hub, so does not
support PCs or OS that do not support USB 2.0.
OS Version
Windows 2000 / XP / 2003 / 2008 / Vista / 7
Linux RedHat 9.0 and higher
SuSE 10 / 11.1 and higher
Debian 3.1 / 4.0
Ubuntu 7.04 / 7.10
UNIX AIX 4.3 and higher
FreeBSD 5.5 and higher
Sun Solaris 8 and higher
Novell Netware 6.0 and higher
Mac OS 9 to 10.6 (Snow Leopard)

CS1762 A / CS1764 A User Manual
6
Components
CS1762 A Front View
CS1764 A Front View
1 & 2
3
45
1 & 2

Chapter 1. Introduction
7
No. Component Description
1Port
Selection
Pushbuttons
For manual port selection (see see Manual Switching,
page 15, also):
 Press a port selection pushbutton for less than two seconds to
bring the KVM, USB hub, and audio focus to the computer
attached to its corresponding port.
 Press a port selection pushbutton twice to bring the audio focus to
the computer attached to its corresponding port.
 Press a port selection pushbutton for longer than two seconds to
bring only the KVM focus to the computer attached to its corre-
sponding port.
 Press switches 1 and 2 simultaneously for 2 seconds to start Auto
Scan Mode, see Auto Scanning, page 21 for details.
2 Port LEDs The Port LEDs are built into the Port Selection Switches. The
upper ones are the KVM Port LEDs; the lower ones are the
USB LEDs:
KVM
 Lights DIM ORANGE to indicate that the computer attached to the
corresponding port is up and running (On Line).
 Flashes to indicate that Firmware Upgrade mode is in effect.
 Changes to BRIGHT ORANGE to indicate that the computer
attached to its corresponding port is the one that has the KVM
focus (Selected).
 Flashes to indicate that the computer attached to its corresponding
port is being accessed under Auto Scan mode.
USB
 Lights GREEN to indicate that the computer attached to its corre-
sponding port is the one that has access to the USB peripherals.
3 USB
Console
Ports
(CS1762
A only) Your USB keyboard and USB mouse plug in
here.
Note: The CS1764
A ’s USB console ports are located on the
unit’s rear panel.
4 Audio Ports (CS1764
A only) The cables from your main speakers and
main microphone plug in here. The speakers and
microphone plugged in here have priority over those in the
rear panel.
Note: The CS1762
A ’s audio ports are located on the unit’s
rear panel.
5 USB 2.0
Hub
(CS1764
A only) USB 2.0 peripherals (printers, scanners,
etc.) can plug into this port (this may require an extra power
adapter).
Note: The CS1762
A ’s USB 2.0 hub port is located on the
unit’s rear panel.

CS1762 A / CS1764 A User Manual
8
CS1762 A Rear View
CS1764 A Rear View
4
3
12
23
41

Chapter 1. Introduction
9
No. Component Description
1 USB 2.0
Hub
USB peripherals (printers, scanners, etc.) can plug into this/
these port(s) (this may require an extra power adapter).
2 Console
Port Section
CS1762
A – The cables from your DVI monitor, speakers, and
microphone plug in here. Each connector is marked with an
appropriate icon to indicate itself.
Note: The CS1762
A ’s console USB keyboard and USB
mouse ports are located on the unit’s front panel.
CS1764
A – The cables from your DVI monitor, USB
keyboard, USB mouse, speakers, and microphone plug in
here. Each connector is marked with an appropriate icon to
indicate itself.
3KVM Port
Section
The cables that link the switch to your computers plug in
here. Each KVM port section is comprised of a microphone
jack, speaker jack, USB type B socket and a DVI connector.
4 Power Jack The power adapter cable plugs into this jack.

CS1762 A / CS1764 A User Manual
10
This Page Intentionally Left Blank

11
Chapter 2
Hardware Setup
Cable Connections
To set up your CS1762 A / CS1764 A installation, refer to the installation
diagram on the following page (the numbers in the diagrams correspond to the
steps, below), and do the following:
1. Plug your USB keyboard and USB mouse into the USB console ports
located on the unit’s rear panel.
2. Plug your console monitor into the DVI console port located in the unit’s
rear panel and power on the monitor.
3. Plug your main microphone and speakers into the console microphone and
speaker jacks located on the unit’s front panel. The microphone and
speakers plugged into this panel have priority over those in the rear panel.
4. Plug your secondary microphone and speakers into the console audio ports
located on the unit’s rear panel.
5. Using a KVM cable set (provided with this package), plug the DVI
connector into any available DVI socket in the KVM port section of the
switch, then plug the accompanying USB, microphone and speaker
connectors into their corresponding USB, microphone, and speaker
sockets.
1. Important safety information regarding the placement of this
device is provided on page 39. Please review it before
proceeding.
2. To prevent damage to your installation from power surges or
static electricity. It is important that all connected devices are
properly grounded.
3. Make sure that power to all the devices you will be installing has
been turned off. You must unplug the power cords of any
computers that have the Keyboard Power On function.

CS1762 A / CS1764 A User Manual
12
Note: Verify that all the plugs are in the same KVM Port sockets (all in
Port 1, all in Port 2, etc.). Each socket is marked with an appropriate
icon.
6. At the other end of the cable, plug the USB, video, microphone, and
speaker cables into their respective ports on the computer.
7. Plug your USB peripherals into the type A sockets in the USB hub section.
8. Plug the power adapter that came with your switch into an AC power
source, then plug power adapter cable into the switch’s Power Jack.
9. Power on the computers.
Note: Make sure the computers and devices that the CS1762A / CS1764A
connects to are also properly grounded.