NTI UNIMUX-USBV-2 User manual

MAN027 Rev Date 6/25/2007
UNIMUX-USBV-2
2-Port USB KVM Switch
Installation and Operation Manual
UNIMUX TM Series

MAN027 Rev Date 6/25/2007
TRADEMARK
UNIMUX is a trademark of Network Technologies Inc in the U.S. and other countries.
COPYRIGHT
Copyright © 2003, 2007 by 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.

MAN027 Rev Date 6/25/2007
TABLE OF CONTENTS
INTRODUCTION............................................................................................................................................................. 1
MATERIALS .................................................................................................................................................................... 1
FEATURES AND FUNCTIONS....................................................................................................................................... 2
INSTALLATION............................................................................................................................................................... 3
Connect User Devices ................................................................................................................................................. 3
Connect to a CPU........................................................................................................................................................ 4
Power Up ..................................................................................................................................................................... 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
TECHNICAL SPECIFICATIONS................................................................................................................................... 12
TROUBLESHOOTING .................................................................................................................................................. 12
WARRANTY INFORMATION........................................................................................................................................ 13
TABLE OF FIGURES
Figure 1- Make user device and power connections..........................................................................................................................3
Figure 2- Connect to a USB CPU ......................................................................................................................................................4
Figure 3- Compatible device combinations ........................................................................................................................................5
Figure 4- Flashing LED for Scan Mode indication..............................................................................................................................8
Figure 5- Keyboard configurations ................................................................................................................................................... 10

NTI UNIMUX 2-PORT USB KVM SWITCH
1
INTRODUCTION
The UNIMUX-USBV-2 (formerly referred to as KEEMUX-USBV-2U) USB KVM switch allows one user to access two USB CPUs
with only one USB keyboard, USB mouse, and 15HD VGA 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
•Belkin PS/2-USB Adapter
•USB Hub
•Microsoft, Logitech, and Kensington mice/trackballs
•Logitech Cordless Elite Duo keyboard and mouse
•Crystal Vision keyboard with touchpad
•Gyration keyboard and mouse
•NTI USB-PS/2 Adapter
•NTI USB-SUN Adapter
•Logitech wireless (S510, EX110, diNovo, LX710)
•Belkin wireless F8E832-BNDL
•Kensington wireless (64379)
•MS Wireless Optical Desktop (3000 and 4000)
•HP P2360AA
•Fellowes wireless keyboard (KBR0108) with mouse (MSR0238T)
•Creative Desktop Wireless 8000
Types of CPUs Supported:
Any USB CPU supporting USB version 1.0 or above including:
•USB WINxx
•USB MAC
•USB SUN
NOTE: UNIMUX-USBV-2 is fully compliant with USB standards (1.0, 1.1)
MATERIALS
Materials Supplied with this kit:
•NTI UNIMUX-USBV-2U USB KVM 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:
•VEXT-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 KVM SWITCH
2
FEATURES AND FUNCTIONS
1. 5VDC- connection jack for the AC adapter
2. USB DEVICES- USB type A female receptacles- 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 video monitor
6. VIDEO x- Video connectors- for connecting video cables from CPUs
7. CPU x- USB type B female receptacles-for connection of USB device cables from CPUs
1234567
UNIMUX
NTI R
Networ k Te chnol og ies Inc
UNIMUX
NTIR
Netw o rk Tech n ol og i es Inc
Front View of UNIMUX-USBV-2 Rear View of UNIMUX-USBV-2
-+

NTI UNIMUX 2-PORT USB KVM SWITCH
3
INSTALLATION
Connect User Devices
1. It is not necessary to turn OFF power to either of the CPUs that will be connected to the UNIMUX-USBV-2 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-USBV-2 and only after the keyboard is connected and the UNIMUX-USBV-2 is powered ON.
2. Connect a USB keyboard to a female USB type A port labeled "USB DEVICES" on the UNIMUX-USBV-2. See Fig. 1.
3. Connect a USB mouse to the other female USB type A port labeled "USB DEVICES" on the UNIMUX-USBV-2.
4. Connect a VGA multi-scan monitor to the female 15HD VGA port labeled "MONITOR" on the UNIMUX-USBV-2. Be sure to
tighten the two screws on the monitor cable connector to the UNIMUX-USBV-2 securely.
Figure 1- Make user device and power connections
-+
USB Keyboard
USB
Mouse
USB Type A
Male Connectors
VGA
Multi-Scan
Monitor
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
15HD male
Video Connector
UNIMUX
NTI R
Network Technologie s Inc

NTI UNIMUX 2-PORT USB KVM SWITCH
4
Connect to a CPU
1. 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-USBV-2.
2. Using a VEXT-xx-MM connect the video port of the same USB CPU connected in step 5 to the female 15HD port labeled
3. "VIDEO 1" on the UNIMUX-USBV-2 . Be sure to tighten the two screws on the cable connector to the UNIMUX-USBV-2
securely.
4. Repeat steps 5 and 6 for connecting a second USB CPU to the ports labeled "CPU 2" and "VIDEO 2" . See Fig. 2.
Figure 2- Connect to a USB CPU
UNIMUX
VEXT-xx-MM
USB-AB-xxM
Rear View of USB CPU
15HD male
Video Connector
USB Type A male
USB Type B male
USB
TYPE A
PORTS
VIDEO
PORT
NTI R
Network Technologies Inc

NTI UNIMUX 2-PORT USB KVM SWITCH
5
PowerUp
The UNIMUX-USBV-2 USB KVM switch 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-USBV-2.
USB devices (keyboard and mouse) can be hot plugged to and from the UNIMUX-USBV-2 at any time. Remember, the last
attached device 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. 3 for some examples of input device combinations that can be used with the UNIMUX.
Figure 3- 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
USB MAC Keyboard USB MAC Keyboard
2 USB hubs in series (Daisy-Chained)
Typical Installation- 1 Keyboard, 1 Mouse
Optional- Multiple keyboards and mice
Optional- MAC USB keyboard and mouse
USB
Hub

NTI UNIMUX 2-PORT USB KVM SWITCH
6
USING THE NTI SWITCH
The NTI UNIMUX-USBV-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-USBV-2 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-USBV-2 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.
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-USBV-2
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-USBV-2 will automatically exit Command Mode after 10 seconds of inactivity by the user if the user
does not manually exit Command Mode.
`
+
Ctrl ~(ACCENT
KEY)
`

NTI UNIMUX 2-PORT USB 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-USBV-2
2. Press and hold the CPU SELECT button on the switch
3. Re-connect power to the switch
4. Release the CPU SELECT button
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
L--(Lxx would be L00-L34, see Country Codes Table on page 11
x x
V(This will print the version of the code in the KEEMUX-USBV-2U switch to a text editor
window for use when troubleshooting the switch)
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.)
C+x = the desired key (this will be in addition to the Ctrl + `sequence
used 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. )

NTI UNIMUX 2-PORT USB 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-USBV-2 will connect
to the other CPU port. See Command Mode section on page 7 for configuring the scan time out period.
Figure 4- Flashing LED for Scan Mode indication
NOTE: The keyboard and mouse must remain idle for the full scan time out period before the UNIMUX-USBV-2 will
connect to the other port.
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.
Normal Mode
The UNIMUX-USBV-2 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-USBV-2.
In Normal Mode the UNIMUX-USBV-2 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-USBV-2 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-USBV-2 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 7, 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

NTI UNIMUX 2-PORT USB KVM SWITCH
9
KEYBOARD FEATURES
The keyboard configuration of each CPU is saved in the NTI UNIMUX-USBV-2. 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 NTI UNIMUX-USBV-2 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. 5 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 KVM SWITCH
10
Figure 5- Keyboard configurations
International Sun Keyboards
The UNIMUX-USBV-2 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-USBV-2
2. Connect the international keyboard to be used to the UNIMUX-USBV-2
3. Disconnect power to the UNIMUX-USBV-2 for at least 3 seconds
4. Reconnect power to the UNIMUX-USBV-2
5. Reconnect the CPU to the UNIMUX-USBV-2
Enter
Enter
Ctrl
Shift
Shift
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 KVM SWITCH
11
It is also possible to configure the UNIMUX-USBV-2 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-USBV-2 indicate the
international keyboard identification number to the CPU using the following procedure;
1. Connect the keyboard to be used to the UNIMUX-USBV-2
2. Disconnect power from the UNIMUX-USBV-2 for at least 3 seconds
3. Reconnect power to the UNIMUX-USBV-2
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-USBV-2 for at least 3 seconds
8. Reconnect power to the UNIMUX-USBV-2
9. Reboot the CPU connected to the UNIMUX-USBV-2
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

NTI UNIMUX 2-PORT USB KVM SWITCH
12
TECHNICAL SPECIFICATIONS
USB Type B USB Type A VGA Video
Pin # Signal Pin # Signal Pin # Signal Pin # Signal
1 +VCC 1 +VCC 1 RED 9 NC
2 - DATA 2 - DATA 2 GREEN 10 GND
3 +DATA 3 +DATA 3 BLUE 11 ID0
4 GND 4 GND 4 ID2 12 ID1
5 TST 13 HS
6 RED GND 14 VS
7 GREEN GND 15 ID3
8 BLUE GND
NOTE: UNIMUX-USBV-2 is fully compliant with USB standards (1.0, 1.1)
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-USBV-2 OFF, then ON.
•unplug the "USB DEVICES" keyboard and mouse cables (not the "CPU x" keyboard and mouse) from the UNIMUX-
USBV-2 and reconnect them.
•reset default values as described on page 7.
•reboot the CPU
If the NTI UNIMUX-USBV-2 still seems work improperly, help may be found in the Frequently Ask Questions (FAQ’s) section
of our website at http://www.networktechinc.com or call us directly at [phone] (800-RGB-TECH) or [phone]
and we will be happy to assist in any way we can.
21
43
Mating face of a USB Type B Female
Mating face of a USB Type A Female
1234
Mating face of a 15HD female
VGA VIDEO
42 3
51
10 98 6
7
15 14 13 12 11
Barrel
(Inside
barrel)
(Outside
barrel)
Power Connector
2.1 mm x 5.5 mm Female
5VDC @ 2.0A OUTPUT

NTI UNIMUX 2-PORT USB KVM SWITCH
13
INDEX
Broadcast Mode, 8
cables, 1
Command Mode, 6
country code, 11
CPUs supported, 1
devices supported, 1
hot plugged, 5
keyboard translations, 9
keyboards- international, 10
MAC CPUs, 8
Normal Mode, 8
Scan Mode, 8
SELECT button, 6
specifications, 12
Sun international keyboards, 10
troubleshooting, 12
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-USBV-2
SERIAL NO.:
DATE:
INSPECTED BY:
MAN027 Rev. 6/25/07