NTI UNIMUX-DVI-2 User manual

MAN045 Rev Date 5/4/2009
UNIMUX-DVI-2
2-Port USB DVI KVM Switch
Installation and Operation Manual
UNIMUXTM Series

i
TRADEMARK
UNIMUX is a trademark of Network Technologies Inc in the U.S. and other countries.
COPYRIGHT
© 2005, 2009 Network Technologies Inc. All rights reserved. No part of this publication may be reproduced, stored in a retrieval
system, or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the
prior written consent of Network Technologies Inc, 1275 Danner Drive, Aurora, Ohio 44202.
CHANGES
The material in this guide is for information only and is subject to change without notice. Network Technologies Inc reserves the
right to make changes in the product design without reservation and without notification to its users.

ii
TABLE OF CONTENTS
INTRODUCTION............................................................................................................................................................. 1
MATERIALS .................................................................................................................................................................... 1
FEATURES AND FUNCTIONS....................................................................................................................................... 2
INSTALLATION............................................................................................................................................................... 3
Connect The Cables .................................................................................................................................................... 3
Power Up Sequence.................................................................................................................................................... 5
Limitations.................................................................................................................................................................... 5
USING THE NTI SWITCH............................................................................................................................................... 6
CPU Select .................................................................................................................................................................. 6
Keyboard Control......................................................................................................................................................... 6
Command Mode .......................................................................................................................................................... 7
Scan Mode................................................................................................................................................................... 8
Broadcast Mode........................................................................................................................................................... 8
Normal Mode ............................................................................................................................................................... 8
Mice and Trackballs with MACs .................................................................................................................................. 8
KEYBOARD FEATURES ................................................................................................................................................ 9
Keyboard-To-Computer Translation ............................................................................................................................ 9
Translation Capabilities ............................................................................................................................................ 9
Translation Tables .................................................................................................................................................... 9
International Sun Keyboards ..................................................................................................................................... 10
TROUBLESHOOTING .................................................................................................................................................. 11
INDEX............................................................................................................................................................................ 12
WARRANTY INFORMATION........................................................................................................................................ 12
TABLE OF FIGURES
Figure 1- Connect the keyboard, mouse, and AC adapter................................................................................................................. 3
Figure 2- Connect a DVI enabled monitor.......................................................................................................................................... 3
Figure 3- Connect CPU cables ..........................................................................................................................................................4
Figure 4- Compatible device combinations ........................................................................................................................................5
Figure 5- Flashing LED means CPU is being scanned......................................................................................................................8
Figure 6- Keyboard types................................................................................................................................................................. 10

NTI UNIMUX 2-Port USB DVI KVM Switch
1
INTRODUCTION
The UNIMUX-DVI-2 USB DVI KVM switch (UNIMUX) allows one user to access two USB CPUs with only one USB keyboard,
USB mouse, and a DVI video-enabled monitor. Internal microprocessors allow both CPUs to boot simultaneously and error-free.
Port selection is accomplished by a front panel push button or commands typed on the keyboard.
Types of User Input Devices Supported:
•USB keyboard with Windows®layout
•USB keyboard with SUN layout
•USB keyboard with MAC layout with mouse
•USB Mouse - (up to 3 buttons)
•USB IntelliMouse®(scrollwheel)
•NTI USB-Sun Adapter
•USB Hub
•Microsoft, Logitech, and Kensington mice/trackballs
Types of CPUs Supported:
Any USB CPU supporting USB version 1.0 or above including:
•USB WINxx
•USB MAC
•USB SUN
Note: UNIMUX-DVI-2 is fully compliant with USB standards (1.0, 1.1)
OPTION: UNIMUX-DVI-2-NBSC – USB DVI KVM switch with no Command, Broadcast, or Scan modes
MATERIALS
Materials Supplied with this kit:
•NTI UNIMUX-DVI-2 Switch
•120V at 60Hz-5VDC/0.5A AC Adapter (Domestic Only) OR 120/240V at 50/60Hz -5VDC/2.0A AC Adapter (Foreign or
Domestic)
•Line Cord, country specific (only supplied when 120/240V AC adapter is supplied)
Materials Not Supplied, BUT REQUIRED:
A set of 2 cables for each USB CPU being connected to the switch must be used:
•DVI-IS-xx-MM for monitor interface
•USB-AB-xM for device (keyboard and mouse) interface.
Legend:
xx is the length of the cable in feet
Mis an abbreviation for meters
MM indicates male-to-male connector
Cables can be purchased from Network Technologies Inc by calling [phone] (800-RGB-TECH) in the US and Canada or
[phone] (worldwide).

NTI UNIMUX 2-Port USB DVI KVM Switch
2
FEATURES AND FUNCTIONS
1. 5VDC- connection jack for the AC adapter
2. USB DEVICES- USB type A female connectors- for connection of user USB device(s)
3. CPU Status/Mode LEDs- for visual indication of switch connection between the user and a specific CPU as well
as mode status
4. CPU Select Switch- push to manually switch to a specific CPU or to change the switch operating mode
5. MONITOR- for connection of the user DVI-enabled video monitor
6. VIDEO x- female DVI connectors- for connecting DVI cables from CPUs
7. CPU x- USB type B female connectors-for connection of USB device cables from CPUs
567
Rear View of UNIMUX-DVI-2
Monitor Video 2 Video 1
CPU 2 CPU 1
NTI NETWORK
TECHNOLOGIES
INCORPORATED
Tel:[phone] Danner Dr
Aurora, OH 44202 www.nti1.com
R
1234
Front View of UNIMUX-DVI-2
CPU 1 CPU 2 CPU
Select
USB Devices
5VDC
-+
NTI R
Network Tech nologies Inc
UNIMUX
TM

NTI UNIMUX 2-Port USB DVI KVM Switch
3
INSTALLATION
Connect The Cables
1. It is not necessary to turn OFF power to either of the CPUs that will be connected to the UNIMUX before connecting or
disconnecting any cables.
NOTE: If a CPU needs to identify a keyboard, it will be necessary to power ON the CPU after it is connected to the
UNIMUX and only after the keyboard is connected and the UNIMUX is powered ON.
2. Connect a USB keyboard to a female USB type A port labeled "USB DEVICES" on the UNIMUX. See Fig. 1.
3. Connect a USB mouse to the other female USB type A port labeled "USB DEVICES" on the UNIMUX.
4. Connect the AC adapter to the port labeled "5VDC".
Figure 1- Connect the keyboard, mouse, and AC adapter
5. Connect a DVI-enabled monitor to the female DVI port labeled "MONITOR" on the UNIMUX. Be sure to tighten the two
screws on the monitor cable connector to the UNIMUX securely.
Figure 2- Connect a DVI enabled monitor
USB Keyboard
USB
Mouse
USB Type A
Male Connectors
USB Type A male
5 VDC
Adapter
AC
ADAPTER
Barrel
(Inside
barrel)
(Outside
barrel)
Power Connector
2.1 mm x 5.5 mm Female
5VDC @ 2.0A OUTPUT
Front View of UNIMUX-DVI-2
CPU 1 CPU 2 CPU
Select
USB Devices
5VDC
-+
NTIR
Network Technologies Inc
UNIMUX
TM
DVI Enabled
Monitor
Rear View of UNIMUX-DVI-2
Monitor Video 2 Video 1
CPU 2 CPU 1
NTI NETWORK
TECHNOLOGIES
INCORPORATED
Tel:[phone] Danner Dr
Aurora, OH 44202 www.nti1.com
R
Mating Face of
DVI Male
Mating Face of
DVI Female

NTI UNIMUX 2-Port USB DVI KVM Switch
4
6. Using a USB-AB-x-MM cable connect the USB type A device port of a USB CPU to the USB type B port labeled "CPU 1" on
the UNIMUX.
7. Using a DVI-IS-xx-MM connect the DVI video port of the same USB CPU connected in step 5 to the female DVI port labeled
"VIDEO 1" on the UNIMUX. Be sure to tighten the two screws on the cable connector to the UNIMUX securely.
8. Repeat steps 6 and 7 for connecting a second USB CPU to the ports labeled "CPU 2" and "VIDEO 2" . See Fig. 3.
Figure 3- Connect CPU cables
DVI-IS-xx-MM
USB-AB-xxM
Rear View of USB CPU
USB Type A male
USB Type B male
USB
TYPE A
PORTS
DVI VIDEO
PORT
Rear View of UNIMUX-DVI-2
Monitor Video 2 Video 1
CPU 2 CPU 1
NTI NETWORK
TECHNOLOGIES
INCORPORATED
Tel:[phone] Danner Dr
Aurora, OH 44202 www.nti1.com
R
Mating Face of
DVI Male

NTI UNIMUX 2-Port USB DVI KVM Switch
5
PowerUpSequence
The UNIMUX can be powered at any time. The CPUs can be powered at any time although if a CPU needs a keyboard and/or
mouse at power-ON it should be powered after connecting to and powering-ON the UNIMUX. USB devices (keyboard and
mouse) can be hot plugged to and from the UNIMUX at any time. Remember, the last device attached is the active one.
Limitations
•Only USB input device or hub cables can be connected to the UNIMUX at the USB Type A female ports labeled "USB
DEVICES". (See Features and Functions on page 2, item 2.)
•A USB hub (single or multi-port) can be used provided only USB input devices are plugged into it.
•Only a USB Windows or SUN keyboard or USB mouse may be connected to the USB port on a USB MAC keyboard
•A maximum of 8 input devices may be connected to the UNIMUX either directly or through hubs.
See Fig. 4 for some examples of input device combinations that can be used with the UNIMUX.
Figure 4- Compatible device combinations
USB Windows Keyboard USB
Mouse
USB Type A
Male Connectors
USB MAC Keyboard USB
Mouse
USB
Mouse
USB
Mouse
USB Windows Keyboard
USB Windows Keyboard
Typical Installation- 1 keyboard, 1 mouse
Multiple keyboards and mice
MAC USB keyboard and mouse
USB
Hub
USB MAC Keyboard USB
Mouse
MAC USB keyboard and mouse through hub
USB
Hub

NTI UNIMUX 2-Port USB DVI KVM Switch
6
USING THE NTI SWITCH
The NTI UNIMUX-DVI-2 can be operated by the CPU SELECT button on the side of the switch or by keyboard control.
CPU Select
•Pressing the CPU SELECT button on the UNIMUX will toggle between CPU 1 and CPU 2 which connects the selected CPU
to the user's keyboard, monitor, and mouse.
•Holding down the CPU SELECT button for more than 2 seconds will cause the UNIMUX to cycle through all modes of
operation: COMMAND, SCAN, BROADCAST, and NORMAL (see pages 6 and 7 for Command, Scan, Broadcast, and
Normal mode sections). After the first change, modes will continue to change every 2 seconds as long as the CPU SELECT
button is still pressed in. The CPUx LEDs will indicate which mode the switch is in (see the table below). Release the button
when the desired mode has been selected.
NOTE: On model UNIMUX-DVI-2-NBSC, the CPU SELECT button will only toggle between CPU1 and CPU2. Command,
Scan, and Broadcast modes are not available.
Switch Mode Indication
MODE CPUx LED INDICATION
COMMAND Both LEDs illuminated
SCAN One LED flashing
BROADCAST Both LEDS flashing alternately
NORMAL One LED illuminated solid
Keyboard Control
In order to control the other features of the switch with the keyboard, Command Mode must be enabled. To enter
Command Mode from the keyboard:
Press
When the Command Mode is enabled, all 3 status lights on the keyboard will illuminate and both LEDs on the UNIMUX will
illuminate solid to indicate Command Mode is enabled and the following functions are available: (NOTE: The user must exit
Command Mode in order to use the CPU(s) in the selected mode. To exit Command Mode, press ESC on the keyboard. ) The
mouse will not operate while in Command Mode.
NOTE: While in Command Mode, when a proper programming key is pressed and recognized by the switch, the LEDs
on the keyboard will flash once to indicate acceptance. The user must exit Command Mode (by pressing ESC) to see a
change take effect in the switch operation.
NOTE: The UNIMUX will automatically exit Command Mode after 10 seconds of inactivity by the user if the user does not
manually exit Command Mode.
NOTE: Command Mode not available on model UNIMUX-DVI-2-NBSC.
`
+
Ctrl ~(ACCENT
KEY)
`

NTI UNIMUX 2-Port USB DVI KVM Switch
7
Command Mode
Function: Keystroke:
Increment Port
Decrement Port
Toggle Scan Mode
ON and OFF
Sets scan time-out
period for each port.
Toggle Broadcast
Mode ON and OFF
Selects a specific
port
Select a different
control key combination
Select a specific
country code for
the keyboard
Print the code
version to a text
editor
Configure port to connect
To a MAC CPU
Configure port to connect
To a WINDOWS or SUN
CPU
Exit Command Mode
Default Value Reset
Default factory-set values for Command Mode entry key, Scan dwell time and country code can be restored by
following this procedure:
1. Disconnect power from the UNIMUX
2. Press and hold the CPU SELECT button on the switch
3. Re-connect power to the switch
4. Release the CPU SELECT button
NOTE: Command Mode not available on model UNIMUX-DVI-2-NBSC.
CHORDED SEQUENCE- PRESS CONSECUTIVELY
AND KEEP KEYS PRESSED UNTIL ALL ARE PRESSED.
+
-PRESS CONSECUTIVELY
or PRESS EITHER KEY
KEY SYMBOLS LEGEND:
I(select the next higher port
ex. 01 02)
or
Dor (select the next lower port
ex. 02 01)
T--(xxx from 002 to 255. ie. t002
would set the time-out period
for 2 seconds)
-
(0-2)
x
(0-9)
x
(0-9)
x
Esc Note: The user must exit
Command Mode to use the CPU(s)
in the selected mode.
P--(P0x would be P01 or P02.)
(1-2)
x
0
S(When toggled to ON, Scan Mode will be indicated the LED for only the active CPU
flashing ON and OFF .)
B(When toggled to ON, Broadcast Mode will be indicated by both LEDs cycling alternately
ON and OFF in rapid intervals.)
Cx = the desired key (This will replace the Ctrl + `sequence to enter
Command Mode)
x
-
+
Wx (x= 1 or 2 <W> + <1> will disable function on Port 1
<W> + <2> will disable function on Port 2. Keyboard
LED's will flash once to confirm command. )
+
Mx (x= 1 or 2 <M> + <1> will enable function on Port 1
<M> + <2> will enable function on Port 2. Keyboard
LED's will flash once to confirm command. )
V(This will print the version of the code in the UNIMUX to a text editor window for use
when troubleshooting the switch)
L--(Lxx would be L00-L34, see Country Codes Table on page 11)
x x

NTI UNIMUX 2-Port USB DVI KVM Switch
8
Scan Mode
Scan Mode is indicated by a flashing CPU port LED. In Scan Mode the switch scans back and forth between ports making the
CPU connected to the port with the flashing LED active. That connected port will remain active while in use. When the
connected port becomes idle for the user selected time out period (default time is 5 seconds), the UNIMUX will connect to the
other CPU port. See Command Mode section on page 7 for configuring the scan time out period.
Figure 5- Flashing LED means CPU is being scanned
NOTE: The keyboard and mouse must remain idle for the full scan time out period before the UNIMUX will connect to the
other port.
NOTE: Scan Mode not available on model UNIMUX-DVI-2-NBSC.
Broadcast Mode
(use with extreme caution)
Broadcast Mode allows the user to send keystrokes to all active CPUs. Broadcast Mode is indicated by illuminating the
CPU x LEDs in rapid alternating intervals . Broadcast Mode has some critical requirements:
a. Broadcast Mode must be OFF when booting any attached CPUs.
b. Broadcast Mode must be ON and the user must exit Command Mode for keystrokes to reach attached CPUs.
NOTE: The mouse is disabled leaving only the keyboard active during Broadcast Mode.
NOTE: Broadcast Mode not available on model UNIMUX-DVI-2-NBSC.
Normal Mode
The UNIMUX is in Normal Mode when only the LED for the active CPU is illuminated solid (not flashing as in Scan Mode). When
in Normal Mode, the user is controlling only the CPU to which the user is connected through the UNIMUX. In Normal Mode the
UNIMUX will only switch between CPUs 1 and 2 when the user uses either keyboard control or button control to do so.
Mice and Trackballs with MACs
The UNIMUX can be configured to enable full functionality between mice and trackballs having two or more buttons and USB
MAC CPUs. By default, the ports on the UNIMUX are configured for use with WINDOWS and SUN CPUs and have no special
translation for using multi-function mice and trackballs when a MAC CPU is connected. Using the commands in Command Mode
on page 6, either enable or disable this feature as needed for each port.
NOTE: Be sure to re-configure port for connection to a WINDOWS or SUN CPU if a MAC CPU is removed and a
WINDOWS or SUN CPU is then connected.
A flashing CPU LED means
that CPU is being scanned
and is active.
View of side of switch with LEDs
and CPU SELECT switch
CPU 1 CPU 2 CPU
Select

NTI UNIMUX 2-Port USB DVI KVM Switch
9
KEYBOARD FEATURES
The keyboard configuration of each CPU is saved in the UNIMUX. For example, if the CPU attached to Port 2 had CAPS LOCK
and NUM LOCK selected the last time that CPU was accessed, then they will automatically be set when that CPU is accessed
again.
Keyboard-To-Computer Translation
The UNIMUX enables a mixture of otherwise incompatible peripheral computer components to be connected together. This is
accomplished by performing keyboard-to-computer translations automatically (i.e. translate a MAC keyboard and mouse to a
Windows type CPU). The chart below shows the capabilities of devices controlling certain CPU types.
Translation Capabilities
CPU
Device Sun Mac Windows
Sun Keyboard Full functionality Full functionality Full functionality
AT101 Keyboard Extra keys emulation Power key emulation Full functionality
Mac keyboard Extra keys emulation Full functionality Full functionality-except
Application Key
Apple Pro Keyboard Extra keys emulation Extra Keys not supported
(Eject, Mute, Volume+,
Volume-)
Full functionality
Sun Mouse Full functionality Full functionality Full functionality
Wheel Mouse Full functionality Full functionality Full functionality
Apple Mouse Right button emulation Full functionality Right button emulation
Translation Tables
Use the chart below to type SUN’s additional keys with Win95 and Apple keyboards:
WINxx or Mac Keyboards Sun Extra Keys
Space Bar + F1 Stop
Space Bar + F2 Again
Space Bar + F3 Props
Space Bar + F4 Undo
Space Bar + F5 Front
Space Bar + F6 Copy
Space Bar + F7 Open
Space Bar + F8 Paste
Space Bar + F9 Find
Space Bar + F10 Cut
Space Bar + F11 Help
Space Bar + F12 Compose
Space Bar + Up Arrow Volume +
Space Bar + Down Arrow Volume -
Space Bar + Left Arrow Mute
(See Fig. 6 on page 10 for reference.)
Power Key Emulation
Win95 Keyboards Mac CPU Sun CPU
SB+RT Arrow Power Power
Mouse Click Equivalents
To emulate right-button click using an Apple 1-button
mouse, hold down the CMND key (key with open
apple insignia) while pressing the mouse button.

NTI UNIMUX 2-Port USB DVI KVM Switch
10
Figure 6- Keyboard types
International Sun Keyboards
The UNIMUX can recognize international layouts for Sun keyboards. In order to use an international Sun keyboard, follow this
procedure:
1. Disconnect the CPU from the UNIMUX
2. Connect the international keyboard to be used to the UNIMUX
3. Disconnect power to the UNIMUX for at least 3 seconds
4. Reconnect power to the UNIMUX
5. Reconnect the CPU to the UNIMUX
Enter
Enter
Ctrl
ShiftShift
Caps Lock
Tab
Esc
Ctrl Alt
Backspace Num
Lock
Enter
Enter
Alt
Graph
ShiftShift
Caps Lock
Tab
Esc
Ctrl Alt
Backspace Num
Lock
Help
Stop
Props
Front
Open
Find Cut
Paste
Copy
Undo
Again
Com-
pose
enter
return
control
shift
shift
caps Lock
tab
esc
control
alt
Delete
num
lock
alt
option
option
Typical Windows Keyboard
MAC Keyboard
SUN Keyboard
Power
key
Suspend
key
clear
Alt

NTI UNIMUX 2-Port USB DVI KVM Switch
11
It is also possible to configure the UNIMUX to emulate a specific international Sun keyboard regardless of what actual keyboard is
connected. This is recommended when the CPU needs the layout code (i.e. a SUN CPU) and the keyboard doesn't have an
explicit layout code (i.e. some Windows keyboards). To do this, manually set the UNIMUX to indicate the international keyboard
identification number to the CPU using the following procedure;
1. Connect the keyboard to be used to the UNIMUX
2. Disconnect power from the UNIMUX for at least 3 seconds
3. Reconnect power to the UNIMUX
4. Enter Command Mode
5. Type Lxx, where xx is the number from the list below that corresponds to the desired country code
6. Exit Command Mode
7. Disconnect power from the UNIMUX for at least 3 seconds
8. Reconnect power to the UNIMUX
9. Reboot the CPU connected to the UNIMUX.
Country Codes
00 Not Supported 18 Netherlands/Dutch
01 Arabic 19 Norwegian
02 Belgian 20 Persian (Farsi)
03 Canadian-Bilingual 21 Poland
04 Canadian-French 22 Portuguese
05 Czech Republic 23 Russia
06 Danish 24 Slovakia
07 Finnish 25 Spanish
08 French 26 Swedish
09 German 27 Swiss/French
10 Greek 28 Swiss/German
11 Hebrew 29 Switzerland
12 Hungary 30 Taiwan
13 International (ISO) 31 Turkish
14 Italian 32 UK
15 Japan (Katakana) 33 US
16 Korean 34 Yugoslavia
17 Latin American 35-99 Reserved
TROUBLESHOOTING
1. Verify all cables are securely connected and that the installation procedure was carefully followed.
2. If a CPU seems to be locked up,
•cycle the power to the UNIMUX OFF, then ON.
•unplug the "USB DEVICES" keyboard and mouse cables (not the "CPU x" keyboard and mouse) from the UNIMUX and
reconnect them.
•reset default values as described on page 7.
•reboot the CPU
If the UNIMUX still seems work improperly, help may be found in the Frequently Ask Questions (FAQ’s) section of our
website at http://www.netwoktechinc.com or call us directly at [phone] (800-RGB-TECH) or [phone] and we
will be happy to assist in any way we can.

NTI UNIMUX 2-Port USB DVI KVM Switch
12
INDEX
Broadcast Mode, 8
cables required-not supplied, 1
Command Mode, 7
country codes, 11
CPUs supported, 1
devices supported, 1
keyboard control, 6
keyboard translations, 9
MAC CPUs, 8
materials supplied, 1
Normal Mode, 8
Scan Mode, 8
Sun International Keyboards, 10
Toubleshooting, 11
USB hub, 5
USB-AB-x-MM, 4
WARRANTY INFORMATION
The warranty period on this product (parts and labor) is two (2) years from the date of purchase. Please contact Network
Technologies Inc at [phone] (800-RGB-TECH) or [phone] or visit our website at http://www.networktechinc.com for
information regarding repairs and/or returns. A return authorization number is required for all repairs/returns.
MODEL NO: UNIMUX-DVI-2
SERIAL NO.:
DATE:
INSPECTED BY:
MAN045 Rev. 5/4/09