1275 Danner Dr Tel:330-562-7070
Fax:330-562-1999
R NETWORK
TECHNOLOGIES
INCORPORATED www.networktechinc.com
Aurora, OH 44202
NTI
UNIMUXTM Series
UNIMUX-DVI-xHD
USB DVI KVM Switch
Installation and Operation Manual
MAN005 Rev Date 6/6/2008
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TABLE OF CONTENTS
INTRODUCTION.............................................................................................................................................................1
MATERIALS....................................................................................................................................................................2
DEFINITIONS..................................................................................................................................................................3
FEATURES AND FUNCTIONS.......................................................................................................................................4
RACKMOUNTING INSTRUCTIONS...............................................................................................................................5
To Mount to a Rack .....................................................................................................................................................5
INSTALLATION...............................................................................................................................................................6
RS232 Connection.......................................................................................................................................................8
Power-Up Sequence....................................................................................................................................................9
Limitations....................................................................................................................................................................9
USING THE UNIMUX DVI KVM SWITCH ....................................................................................................................10
Front Panel Control....................................................................................................................................................10
Keyboard Control.......................................................................................................................................................10
Command Mode ........................................................................................................................................................10
Scan Mode..............................................................................................................................................................11
Broadcast Mode......................................................................................................................................................11
Normal Mode ..........................................................................................................................................................11
No Sun Sleep Mode................................................................................................................................................11
Select Country Code...............................................................................................................................................12
Mice and Trackballs with MACs..............................................................................................................................12
RS232 CONTROL.........................................................................................................................................................13
RS232 Connections and Configuration .....................................................................................................................13
Remote Connection................................................................................................................................................13
Baud Rate...............................................................................................................................................................13
Unit Address and Loop Back ..................................................................................................................................13
Command Protocol.................................................................................................................................................15
NTI Switch Control Program For Windows 9X, NT, 2000, XP, And Vista.................................................................16
SerTest- RS232 Interface Test Program...................................................................................................................16
Main Options...........................................................................................................................................................16
KEYBOARD FEATURES ..............................................................................................................................................18
Keyboard-To-Computer Translation..........................................................................................................................18
Translation Capabilities ..........................................................................................................................................18
Translation Tables ..................................................................................................................................................18
International Sun Keyboards .....................................................................................................................................19
TROUBLESHOOTING ..................................................................................................................................................20
INDEX............................................................................................................................................................................20
WARRANTY INFORMATION........................................................................................................................................20
TABLE OF FIGURES
Figure 1- Secure rackmount ears to switch.....................................................................................................................5
Figure 2- Secure switch to a rack....................................................................................................................................5
Figure 3- Connect a DVI monitor ....................................................................................................................................6
Figure 4- Connect the device(s)......................................................................................................................................6
Figure 5- Connect each CPU..........................................................................................................................................7
Figure 6- Connect the power cord...................................................................................................................................7
Figure 7- Connect RS232 control terminal......................................................................................................................8
Figure 8- Compatible device combinations.....................................................................................................................9
Figure 9- Country Codes for international SUN keyboards...........................................................................................12
Figure 10- RS232 DIP switches ....................................................................................................................................13
Figure 11- RS232 connection with Matrix-Y-1 cable.....................................................................................................14
Figure 12- Pinout of Matrix-Y-1 cable ...........................................................................................................................14
Figure 13- RS232 Communication Illustrated ...............................................................................................................15
Figure 14- Keyboard Layouts........................................................................................................................................19
ii
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NTI UNIMUX SERIES USB KVM SWITCH
INTRODUCTION
The UNIMUX-DVI-xHD 4,8 or 16-Port USB DVI KVM switch (UNIMUX) allows access to up to sixteen (16) Windows, MAC, or
SUN USB CPUs from one USB keyboard and mouse and a DVI video-enabled monitor. Internal microprocessor circuitry allows
all USB CPUs to be booted simultaneously without keyboard error. Port selection is accomplished by front panel push buttons or
commands typed on the keyboard. Port lights and status LEDs continuously update on the front panel.
Types of User Input Devices Supported:
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
USB keyboard with Windows layout
USB keyboard with SUN layout
USB keyboard with MAC layout
USB Mouse - (up to 3 buttons)
USB IntelliMouse (scrollwheel)
USB Hub
Mouse-Trak trackball
Logitech, Kensington and Microsoft Wheelmouse or Trackball on Mac CPUs with special drivers
Logitech Cordless Elite Duo keyboard and mouse
Logitech wireless (S510, EX110, diNovo, LX710,MX5000)
Crystal Vision keyboard with touchpad
Gyration keyboard/mouse (Go 2.4)
NTI USB-PS/2-R Adapter
NTI USB-SUN-R Adapter
Kensington wireless (64379)
MS Wireless Optical Desktop (3000 and 4000)
HP P2360AA
Fellowes wireless keyboard (KBR0108) with mouse (MSR0238T)
Creative Desktop Wireless 8000
DVI monitors
Apple USB 2.0 Keyboard (MB110LL/A)
Apple USB 2.0 Mouse (MB112LL/A)
Types of CPUs Supported:
Any USB CPU supporting USB version 1.0 or above including:
•
•
•
•
•
•
USB WINxx
USB MAC
USB SUN
USB Linux
USB Unix
USB Free BSD
1
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NTI UNIMUX SERIES USB KVM SWITCH
MATERIALS
Materials supplied with this kit:
•
•
•
•
•
•
•
NTI UNIMUX-DVI-xHD (4,8 or 16 ports) USB DVI Video KVM Switch
Line cord, country specific
Rack mount kit
CD with pdf file of this manual
1- DB9 Female-to-RJ45 Female adapter
1- DB25 Female-to-RJ45 Female adapter
1- 5 foot RJ45-to-RJ45 CAT5 patch cable
Materials Not supplied but REQUIRED:
•
USB-DHEXT-xx-MM cable for each CPU being connected to the switch- for DVI monitor, USB keyboard, and USB mouse
support- available in 3, 6,10, and 15 foot lengths
where:
xx is the length of the cable in feet
MM indicates male-to-male connector
Cables can be purchased from Network Technologies Inc by calling (800) 742-8324 (800-RGB-TECH) in the US and Canada or
(330) 562-7070 (worldwide).
DVI-D-Male
HDMI Type A
Male
Single Link
HDMI Type A Male
USB-DHEXT-xx-MM
DVI-D-Male
(3,6,10 and 15 foot cables available)
USB Type A
Male
USBType A Male
2
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NTI UNIMUX SERIES USB KVM SWITCH
DEFINITIONS
A USB device that contains multiple endpoints each representing input devices that cannot be separated
(i.e. a keyboard with a built-in mouse)
A USB device that allows one or more USB input devices to plug in to the USB. The hub has exactly one
upstream port with one or more downstream ports which input devices connect to
Enclosure that contains the operating system and processor (i.e. Sun with SPARCstation5, Windows 95
with Pentium II)
•
•
•
USB Composite
Device
USB Hub
CPU
Keyboard or Mouse
•
•
Input Device
System
One or more CPUs connected to one or more switches controlled by one or more input devices
USB CPU
DVI Enabled
Existing
cable
Monitor
USB-DHEXT-xx-MM
(required-not supplied)
Front View of UNIMUX-DVI-8HD
Existing
cables
Command
Scan Broadcast
RS232
R
ON
1
DDC
R
1
2
3
4
5
6
7
8
NTI
UNIMUX
Netwo
rk
Tech nol ogi es In
c
8
9
10
11
12
13
14
15
16
USB
Mouse
USB Keyboard
USB-DHEXT-xx-MM
(required-not supplied)
USB CPU
Typical Application
3
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NTI UNIMUX SERIES USB KVM SWITCH
Front View of UNIMUX-DVI-16HD
Broadcast Command
Scan
RS232
R
ON
1
DDC
R
1
9
2
3
4
5
6
7
8
UNIMUX
NTI
Network Technologies Inc
8
10
11
12
13
14
15
16
4
5
2
1
3
Rear View of UNIMUX-DVI-16HD
R
CPU 16
CPU 15
CPU 7
CPU 14
CPU 6
CPU 13
CPU 5
CPU 12
CPU 4
CPU 11
CPU 3
CPU 10
CPU 2
CPU 9
CPU 1
NTI
1275 Danner Dr
Aurora, OH 44202
www.networktechinc.com
Tel:330-562-7070
RS232
Fax:330-562-1999
MONITOR
CPU 8
250V,2A
7
10
11
6
8
9
FEATURES AND FUNCTIONS
1. RS232- DIP switches for configuring switch address when RS232 is used
2. DDC- for refreshing the DDC information between the monitor and CPU
3. CPU Select Switches- push to manually switch to a specific CPU or change the switch operating mode
4. CPU Status LEDs- for visual indication of connection between the user and a specific CPU.
5. Mode Status LEDs- for visual indication of switch operating mode
6. IEC Connector w/Built-in 2A 240VAC Replaceable Fuse- for attachment of the IEC power cord to power the UNIMUX
7. Switch- for powering ON and OFF the UNIMUX
8. RS232- RJ45 serial connector- for attachment of RS232 control cable
9. CPU x- HDMI Type A female connector- for connection of the cable from the CPU(s)
10. MONITOR- female DVI connector- for connecting DVI cable from user monitor
11. USB- USB type A female connector- for connection of user USB keyboard and mouse
4
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NTI UNIMUX SERIES USB KVM SWITCH
RACKMOUNTING INSTRUCTIONS
This NTI switch was designed to be mounted to a rack or to sit on a desktop. It includes rackmount ears to make attachment to a
rack easy, and rubber feet to be applied to the bottom of the case if it will instead sit on a flat surface. If this will sit on a flat
surface, simply apply the rubber feet to the bottom of the case in each of the 4 corners.
To Mount in a Rack
1. Attach the ears to the switch using the 6-32x3/16" flat Phillips-head screws (6) provided as shown in the illustration below.
The holes in the ears should line up with pre-threaded holes in the sides of the NTI switch. Tighten the screws securely.
NTI Switch
Front of Switch
6-32x3/16"
Flat Head
Screws
(Provided)
Rackmount Ear
Figure 1- Secure rackmount ears to switch
2. Install 4 cage nuts (not supplied) to the rack in locations that line up with the holes in the mounting ear on the NTI switch.
3. Secure the NTI switch to the rack using four rack screws (10-32, 12-24, M6, etc.- not supplied). Each screw should be of
sufficient length to go completely through the NTI mounting ear, rack frame and fully engage all threads in the cage nut.
Be sure to tighten all mounting screws securely.
4. Attach all cables securely to the switch and where necessary supply adequate means of strain relief for cables.
NTI Switch
Rack
Cage Nuts
(not supplied)
Rack Screws
(not supplied)
Figure 2- Secure switch to a rack
5
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NTI UNIMUX SERIES USB KVM SWITCH
INSTALLATION
1. It is not necessary to turn the CPUs or monitors OFF during this installation.
2. Connect a DVI-to-DVI cable (should have come with the monitor) from a DVI monitor to the “MONTOR” connector on the
rear of the UNIMUX (See Fig. 3 below.)
Rear View of UNIMUX-DVI-16HD
R
CPU 16
CPU 8
CPU 15
CPU 7
CPU 14
CPU 6
CPU 13
CPU 5
CPU 12
CPU 4
CPU 11
CPU 3
CPU 10
CPU 2
CPU 9
CPU 1
NTI
1275 Danner Dr
Aurora, OH 44202
Tel:330-562-7070
RS232
Fax:330-562-1999
MONITOR
250V,2A
Existing Cable
DVI-D-Male
DVI Enabled
Monitor
Mating Face of
DVI Male
Figure 3- Connect a DVI monitor
3. Connect the male USB type A connector on the keyboard cable to either one of the two USB type A female connectors
labeled with the USB symbol ) on the rear of the UNIMUX.
(
4. Connect the male USB type A connector on the mouse cable to the remaining USB type A female connector labeled with the
USB symbol on the rear of the UNIMUX.
Rear View of UNIMUX-DVI-16HD
R
CPU 16
CPU 8
CPU 15
CPU 7
CPU 14
CPU 6
CPU 13
CPU 5
CPU 12
CPU 4
CPU 11
CPU 3
CPU 10
CPU 2
CPU 9
CPU 1
NTI
1275 Danner Dr
Aurora, OH 44202
www.networktechinc.com
Tel:330-562-7070
RS232
Fax:330-562-1999
MONITOR
250V,2A
USB Type A Female
USB Type A Male
USB Type A
Male Connectors
USB
Mouse
USB Keyboard
Figure 4- Connect the device(s)
6
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NTI UNIMUX SERIES USB KVM SWITCH
5. Connect each CPU to the USB switch using a USB-DHEXT-xx-MM (xx=3, 6, 10, or 15 foot) cable for each video and input
device connection – REQUIRED (not supplied). (See Fig. 5 below.) Cables are available from NTI.
Rear View of UNIMUX-DVI-16HD
R
CPU 16
CPU 8
CPU 15
CPU 7
CPU 14
CPU 6
CPU 13
CPU 5
CPU 12
CPU 4
CPU 11
CPU 3
CPU 10
CPU 2
CPU 9
CPU 1
NTI
1275 Danner Dr
Aurora, OH 44202
www.networktechinc.com
Tel:330-562-7070
RS232
Fax:330-562-1999
MONITOR
250V,2A
Rear View of Windows USB CPU
USB Type A Male
HDMI Type A
Video Connector
Input Device Port
USB Type A Female
Video Port
USB-DHEXT-xx-MM
(3,6,10 and 15 foot cables available)
DVI Female
Video Connector
Mating Face of
DVI Male
Mating Face of
HDMI Type A Male
Figure 5- Connect each CPU
7. Connect the AC power cord with IEC connector to the UNIMUX. (See Fig. 6 below.)
Rear View of UNIMUX-DVI-16HD
R
CPU 16
CPU 8
CPU 15
CPU 7
CPU 14
CPU 6
CPU 13
CPU 5
CPU 12
CPU 4
CPU 11
CPU 3
CPU 10
CPU 2
CPU 9
CPU 1
NTI
1275 Danner Dr
Aurora, OH 44202
www.networktechinc.com
Tel:330-562-7070
RS232
Fax:330-562-1999
MONITOR
250V,2A
IEC Connector
Power cord
Figure 6- Connect the power cord
7
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NTI UNIMUX SERIES USB KVM SWITCH
RS232 Connection
If the RS232 is going to be used, connect one end of the CAT5 patch cable (supplied) to the port labeled “RS232” on the rear of
the UNIMUX. Plug the other end of the CAT5 cable into either the RJ45-to-DB9 or RJ45-to-DB25 adapter supplied, and connect
the adapter to the RS232 port on the control terminal. Follow the instruction under “RS232 Control” on page 13 for configuration
and use of the RS232 control feature.
Rear View of UNIMUX-DVI-16HD
R
CPU 16
CPU 8
CPU 15
CPU 7
CPU 14
CPU 6
CPU 13
CPU 5
CPU 12
CPU 4
CPU 11
CPU 3
CPU 10
CPU 2
CPU 9
CPU 1
NTI
1275 Danner Dr
Aurora, OH 44202
www.networktechinc.com
Tel:330-562-7070
RS232
Fax:330-562-1999
MONITOR
250V,2A
RJ45-to-DB9 Adapter
(supplied)
Control Terminal
or
CAT5 Patch Cable
(supplied)
RJ45-to-DB25 Adapter
(supplied)
Figure 7- Connect RS232 control terminal
8
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NTI UNIMUX SERIES USB KVM SWITCH
Power-Up Sequence
•
•
Power-up the monitor(s).
The UNIMUX can be powered at any time.
Note: It is recommended that the monitor be powered-ON before powering on the UNIMUX in order for DDC information
to be properly communicated.
•
•
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 input devices (keyboard and mouse) can be hot plugged to and from the UNIMUX at any time.
Limitations
•
Only USB input device or hub cables can be connected to the UNIMUX at the USB Type A female ports. (See Features and
Functions on page 3, item 11.)
•
•
•
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. 8 for some examples of input device combinations that can be used with the UNIMUX.
USB
Hub
USB Type A
Male Connectors
USB Windows Keyboard
USB
Mouse
USB MAC Keyboard
USB
Mouse
USB Windows Keyboard
USB
Mouse
USB
USB Windows Keyboard
Mouse
MAC USB keyboard and mouse
Typical Installation- 1 keyboard, 1 mouse
Multiple keyboards and mice
USB
Hub
USB
Mouse
USB MAC Keyboard
MAC USB keyboard and mouse through hub
Figure 8- Compatible device combinations
9
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NTI UNIMUX SERIES USB KVM SWITCH
USING THE UNIMUX DVI KVM SWITCH
Once the UNIMUX is properly connected, the UNIMUX will enable a connection to be made between the CPUs attached to its
VIDEO and CPU ports and the monitor and input devices attached to the MONITOR and USB Device ports. The LEDs on the
control panel of the UNIMUX will illuminate depending on which port (and corresponding CPU) is being connected to the monitor
and input devices.
The UNIMUX can be controlled by three methods:
•
•
•
front control panel using touch-switches and LEDs
keyboard control through Command Mode
RS232 control (page 13)
Front Panel Control
There is a touch-switch and LED on the front panel of the UNIMUX for each CPU the switch will connect the monitor and
input devices to. Pressing any touch-switch on the front panel of the UNIMUX will connect the corresponding CPU to the monitor
and input devices.
Holding down any front panel touch-switch for more than 2 seconds will cause the UNIMUX to cycle through all modes of
operation including COMMAND, BROADCAST, SCAN, and NORMAL (described in "Command Mode" below). The three MODE
LEDs on the front panel indicate which mode is selected. Release the touch-switch when the LEDs indicate the desired mode.
When no mode LEDs are illuminated the user is in Normal Mode controlling directly the CPU to which the user is connected
through the UNIMUX.
Keyboard Control
Keyboard control of the UNIMUX can be achieved using Command Mode (below). The keyboard can be used to control all
functions of the UNIMUX as an alternative to using the front panel on the UNIMUX.
By pressing <Ctrl> + < ` > (accent/tilde key), the user can enter Command Mode. Once in Command Mode, typing a series of
commands will cause the UNIMUX to connect the user to any one CPU connected to the switch. Pressing the <Esc> key will exit
Command Mode.
Command Mode
In order to control the UNIMUX with the keyboard connected, Command Mode must be enabled. To enter Command Mode from
the keyboard:
(ACCENT/TILDE
KEY)
~
Press
Ctrl
`
When the COMMAND LED is illuminated, all 3 status lights on the keyboard will illuminate (if they aren't already due to caps lock,
scroll lock, and/or num lock) to indicate that Command Mode is enabled and the following functions are available:
Basic Command Functions
KEY SYMBOLS LEGEND:
Function:
Keystroke:
or
PRESS EITHER KEY
CHORDED SEQUENCE- PRESS CONSECUTIVELY
AND KEEP KEYS PRESSED UNTIL ALL ARE PRESSED.
+
-
(select the next higher port
ex. 03 04)
I
or
or
Increment Port
PRESS CONSECUTIVELY
(select the next lower port
ex. 02 01)
D
S
Decrement Port
Toggle Scan Mode
ON and OFF
(The SCAN Mode LED will
also toggle ON and OFF)
(The Broadcast Mode LED
will toggle ON and OFF.)
Toggle Broadcast Mode
ON and OFF
B
T
(xxx from 002 to 255. ie. T002
would set the time-out period
for 2 seconds)
Sets scan time-out
period for each port.
(0-2)
x
(0-9)
x
(0-9)
x
-
-
-
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NTI UNIMUX SERIES USB KVM SWITCH
(0-9)
x
(0-9)
x
(Pxx would be P01, P02, etc.)
Selects a specific
port
-
P
M
W
-
Configure port to connect
To a MAC CPU
(xx= 01-8 <M> + <0> + <1> will enable function on Port 1
<M> + <0> + <4> will enable function on Port 4. Keyboard
LED's will flash once to confirm command. )
x
x
+ +
Configure port to connect
To a WINDOWS or SUN
CPU
(xx= 01-8 <W> + <0> + <1> will disable function on Port 1
<W> + <0> + <4> will disable function on Port 4. Keyboard
LED's will flash once to confirm command. )
x
x
+
+
FYI: The user must exit Command Mode to type to a CPU.
Exit Command Mode
Esc
To exit Command Mode, either hold down any touch-switch on the
front panel for more than 2 seconds, OR press <ESC> on the
keyboard.
Scan Mode
To activate Scan Mode press <S> from the Command Mode menu. When in Scan Mode the switch scans to each port with a
CPU powered-ON. (The SCAN LED on the front panel will illuminate and remain ON while in Scan Mode. ) The port with the CPU
powered-ON remains active while in use until it becomes idle for the configured dwell time (default time-out period is 5 seconds)
before switching to the next powered-ON CPU port. See Command Mode section above for configuring the scan dwell time.
Note: The keyboard and mouse must remain idle for the full scan dwell time before the switch selects the next active
port.
Broadcast Mode
To activate Broadcast Mode press <B> from the Command Mode menu. (The BROADCAST LED on the front panel will illuminate
and remain ON while in Broadcast Mode.) Broadcast Mode enables the user to type characters to all powered-ON CPUs
simultaneously.
Note: The user must type somewhat slowly when in Broadcast Mode (less than 20 wpm) and cannot use the
<Backspace> key.
Normal Mode
When all of the UNIMUX mode LEDs are OFF the user is in Normal Mode, controlling the CPU to which the user is connected
through the UNIMUX.
No Sun Sleep Mode
Note: It is necessary to configure a Sun CPU (most versions) such that the Sleep Mode is not enabled. If the Sun CPU
goes into Sleep Mode either automatically or manually, the user must reboot the Sun CPU in order to resume use of the
Sun CPU.
To disable the Sleep Mode, perform the following steps:
1. Select "Power Manager"
2. Look for "Device Idle Time Before Power Saving Starts"
3. Select "Always ON"
4. Look for "Override Device Idle Time For:"
5. Make sure neither "Monitors" nor "Disks" are selected.
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NTI UNIMUX SERIES USB KVM SWITCH
Select Country Code
It is 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. Enter Command Mode
3. Type Lxx, where xx is the number from the list below that corresponds to the desired country code
4. Exit Command Mode
Note: If any SUN CPUs are connected to the UNIMUX, they must be rebooted. Keyboard configuration is only read by
SUN CPUs on startup.
Country Codes
00
01
02
03
Auto Detect
Arabic
Belgian
Canadian-
Bilingual
Canadian-French
Czech Republic
Danish
Finnish
French
German
Greek
13
14
15
16
International (ISO) 26
Swedish
Italian
Japan (Katakana)
Korean
27
28
29
Swiss/French
Swiss/German
Switzerland
04
05
06
07
08
09
10
11
12
17
18
19
20
21
22
23
24
25
Latin American
30
Taiwan
Turkish
UK
US
Yugoslavia
Netherlands/Dutch 31
Norwegian
Persian (Farsi)
Poland
32
33
34
Portuguese
Russia
Slovakia
Hebrew
Hungary
Spanish
Figure 9- Country Codes for international SUN keyboards
For more on international SUN keyboards, see page 19.
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 <M> + <x> + <x>
(xx = port number), or <W> + <x> + <x> in Command Mode (page 10), 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.
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NTI UNIMUX SERIES USB KVM SWITCH
RS232 CONTROL
RS232 enables the UNIMUX to be remotely controlled via RS232. To control the UNIMUX via RS232 the user has three options:
•
•
•
write a program that runs on a PC using the Command Protocol (page 15)
use the NTI Switch Control Program (page 16) provided on the CD
use the SerTest program (page 16) provided on the CD
RS232 Connections and Configuration
Remote Connection
The RS232 Interface (optional) is designed to meet the RS232C standard and can be controlled from any CPU or other controller
with an RS232 communications port. The pin-out for the RJ45 connector on the unit is as follows:
RS232 (RJ45) CONNECTOR
PIN
1
SIGNAL
FUNCTION
-
No connection
2
-
No connection
3
RX+
Receive data (TXD at host)
Ground
4
GND
5
-
No connection
6
TX+
Transmit data (RXD at host)
No connection
7
-
-
8
No connection
A 5 foot patch cable and two adapters, RJ45-to-DB9 and RJ45-to-DB25, have been provided for connection to most CPUs (see
page 8).
Baud Rate
The baud rate can be changed by powering down the unit, changing the 8 position RS232 DIP switch on the front of the UNIMUX,
and then powering back up. This table shows how to set the baud rate. (Fig. 10 shows switches in their factory default position.)
DIP
SWITCH
2
BAUD RATE
RS232
3
ON
1
OFF OFF
OFF ON
2400
9600 (default)
19200
ON
ON
OFF
ON
8
38400
Figure 10- RS232 DIP switches
Unit Address and Loop Back
To allow multiple units to be controlled from a single CPU serial port, the RS232 control interface is designed to allow "daisy
chaining" up to 15 units. By setting the appropriate RS232 DIP switches, each unit can be given a unique address (1-15). Then
the unit will only respond to commands on the bus if its address is embedded in the command. Use the following table to set the
unit address.
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NTI UNIMUX SERIES USB KVM SWITCH
DIP SWITCH
UNIT ADDRESS
Note: The "loop back" RS232 DIP switch (RS232 DIP
switch 1) should be ON for each unit in the chain.
8
7
6
5
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON
OFF OFF
OFF OFF
OFF ON
OFF ON
ON
ON
ON
ON
OFF OFF
OFF OFF
OFF ON
OFF ON
0 (not valid)
1 (default)
2
3
4
5
6
7
OFF
OFF
ON
ON
8
9
ON
ON
ON
10
11
12
13
14
15
ON
ON
ON
ON
ON
ON
ON
ON
OFF
OFF
ON
OFF
ON
ON
Note: Switch 4 on the RS232 DIP switch is not used.
In order to connect multiple switches (up to 15) with RS232 connections to the same CPU, an NTI Matrix-Y-1 cable must be used.
Connect the Matrix-Y-1 cable between the RJ45-to-DB9 serial adapter (provided with the RS232 option) and the CPU as shown in
Fig. 11.
RS232
Serial Port
Matrix-Y-1
Matrix-Y-1
Matrix-Y-1
CPU
Note: The maximum combined
RS232 cable length between the
CPU and any NTI switch cannot
exceed 15 feet.
RJ45
RJ45
TO DB9
SERIAL
RJ45
TO DB9
SERIAL
ADAPTER
TO DB9
SERIAL
ADAPTER
ADAPTER
CAT5 CABLE
RS232
CAT5 CABLE
CAT5 CABLE
RS232
RS232
NTI
NTI
NTI
SWITCH
SWITCH
SWITCH
First Unit
Second Unit
Last Unit
Figure 11- RS232 connection with Matrix-Y-1 cable
Wiring Schematic of Matrix-Y-1 cable
9D Male
(Unit #1)
9D Female
(Source)
9D Male
(Unit #2)
2
3
3
3
5
2
7
Not connected to
source connector
5
5
2
Jumper
8
1
4
6
Jumpers
Figure 12- Pinout of Matrix-Y-1 cable
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NTI UNIMUX SERIES USB KVM SWITCH
Command Protocol
RS232 commands supported by the unit are defined below. All command strings should be terminated with a <CR> (carriage
return). When a command is sent, the entire string is echoed back along with a response from the addressed unit as shown in the
command definitions. All characters in the command string should be upper case, and all numbers below 10 should have a
leading 0 (ex: 1 = 01). As command strings are sent, the inner character delay cannot exceed 500 milliseconds.
CPU
SWITCH AT UNIT ADDRESS 01
(COMMAND SENT)
(COMMAND RECEIVED)
CS 01,01,03<CR>
RS232
RS232
CS 01,01,03<CR>
(ECHO)
CS 01,01,03<CR>
(RESPONSE RECEIVED)
CS 01,01,03<CR>
* <CR>
(RESPOND)
* <CR>
Figure 13- RS232 Communication Illustrated
Note: To use this command protocol, the user is required to write a program that will send an entire command string all
at once, not character by character. Programs that send one character at a time (such as HyperTerminal) cannot be used
to control the UNIMUX. Alternatively, the user may use the NTI Switch Control Program or SerTest to control the
UNIMUX via RS232 (see page 16).
Legend: (All numbers must be two digits)
SW
OP
IP
:
:
:
:
Switch (01-15) (Unit Address)
Output (User) Port (01)
Input (CPU) Port (01-MAXINPUTS)
Carriage Return (Hex 0xD)
<CR>
Note: For units with one output (user) port, use 01 for the output selection.
Command Definitions
Command String
CS SW,IP,OP
RO SW,OP
RS SW
Good Response
*<CR>
*<CR>IP<CR>
*<CR>
Description
Connect Output (User) Port To specific Input (CPU) Port
Read Connection For Output (User) Port to Input (CPU) Port
Internal Reset
RU SW
*<CR>IP,OP<CR>
*<CR>
*<CR>
Read Unit Size
SS SW,00
SS SW,01
GO SW,OP
Disable Autostatus feature (see below)
Enable Autostatus feature (see below)
Read connection of a Output (User) Port to Input (CPU) Port
(different response format than RO command)
Read connection matrix of all Output (User) ports
*<CR>go SW,OP:IP<CR>
GM SW,00
*<CR>go OP,IP (all ports)<CR>
If the first field is not a known command (as listed above) or SW field is different from the unit address programmed at the DIP
switch (page 13), the command will be ignored. If the SW field corresponds to the unit address, but if the syntax is wrong after
this field, the switch will answer with a bad response ?<CR>.
Autostatus
When Autostatus is enabled, any output (user) -to-input (CPU) connection change in the UNIMUX will cause an Autostatus
message to be sent via RS232 to the administrator. The format of the message would be "pc SW,OP:IP<CR>"
Example of an Autostatus message:
pc 01,01:04<CR>
which means "At the switch with unit address 01, the output (User) (01) has changed connection to input (CPU) port 04."
Note: An Autostatus message to the administrator will be delayed by any RS232 traffic being received by the switch
from the administrator.
By default, Autostatus is disabled and must be manually enabled.
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NTI UNIMUX SERIES USB KVM SWITCH
NTI Switch Control Program For Windows 9X, NT, 2000, XP, And Vista
The NTI Switch Control Program is an easy and powerful graphical program that controls NTI switches through an RS232
interface. The NTI Switch Control Program is included on the CD packaged with the UNIMUX. The NTI Switch Control
Program is downloaded by clicking on the link "Download NTI Switch Control Program".
To install the NTI Switch Control Program after downloading
1. Locate the Setup.exe in the directory the program was downloaded to and double-click on it
2. Follow the instructions on the screen
Note: In order to use the NTI Switch Control Program to control the UNIMUX, the UNIMUX RS232 port must be set at a
baud rate of 9600 bps (see page 13).
The NTI Switch Control Program performs best on monitors set to a screen resolution of at least 800 X 600. Instruction for using
the NTI Switch Control Program is available by opening "MSCP Help" in the "NTI" program group once the program has been
installed and is open on the screen.
To open "MSCP Help" from the Windows desktop
1. Click on START
2. Click on PROGRAMS
3. Click on NTI
4. Click on MSCP Help
SerTest- RS232 Interface Test Program
This software allows a user to test the functions of an NTI server switch, matrix switch or Multi-user/Multi-platform/Single-user
switch RS232 interface. The SerTest program is automatically loaded when installing the NTI Switch Control Program as
described above. The SerTest program, located in the NTI program group, generates a main menu with the 4 selections
described below:
Main Options
- send commands to the unit.
•
•
•
•
Switch Operations
Ethernet Operations
Setup Options
- set ethernet connection variables (not applicable to this model)
- set COM port, baud rate, and unit address
- display the program version
About SerTest
If Matrix Operations is selected, the following menu is displayed:
SWITCH OPERATIONS
1) Reset Unit
- send a reset command to the switch
- the current unit address is displayed in parentheses
2) Reset All Units
- send an internal reset command to all switches
3) Connect Output/User to an Input/CPU
- connect an output to an input
4) Connect All Outputs/Users to an Input/CPU (not applicable to this model)
- connect all outputs to an input
5) Connect Audio Output/User to an Input/CPU (not applicable to this model)
- connect an output to an input
6) Connect All Audio Outputs/Users to an Input/CPU (not applicable to this model)
- connect all outputs to an input
7) Change Mute Status for Audio Output/User (not applicable to this model)
- mute or un-mute the Audio port output
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NTI UNIMUX SERIES USB KVM SWITCH
8) Change Volume for Audio Output/User (not applicable to this model)
- change Audio port output volume
9) Read Connection for Output/User
- read what input is connected to the specified output
a) Read Connection for Audio Output/User (not applicable to this model)
- read what input is connected to the specified output
b) Read Mute Status and Volume for Audio Output/User (not applicable to this model)
- read the volume and the mute status of the specified output
c) Read Unit Size
- read the switch size (number of inputs and outputs)
d) Read Unit Version/Revision String (not supported by this model)
- read a string containing the switch version, type, and size
e) Save I/O Connections into Unit Memory (not applicable to this model)
- save the connections into switch memory bank
f) Restore I/O Connections from Unit Memory (not applicable to this model)
- restore the connections from switch memory bank
g) Save All Units I/O Connections into Units Memory (not applicable to this model)
- save the connections into switch memory bank, command for all switches
h) Restore All Units I/O Connections from Units Memory (not applicable to this model)
- restore the connections from switch memory bank, command for all switches
i) Change All Units Baud Rate (9600/COM1)
- change RS232 Baud rate of all switches
- the current baud rate and serial port are displayed in parentheses
ETHERNET OPERATIONS (not applicable to this model)
SETUP OPTIONS
1) select Com port current: (COM1:)
- select PC serial port
- the current PC serial port is displayed in parentheses
2) select Baud rate current: (9600)
- select PC serial port baud rate
- the current baud rate is displayed in parentheses
3) set unit Address current: (1)
- select the unit address of the switch to be connected to by this program
- the current address is displayed in parentheses
For any selection that requires user input, the user is prompted. When commands are sent to the UNIMUX, the command string
and UNIMUX responses are echoed to the screen. All commands generated by the program are formatted according to the
information provided in sections above. If any transmission problems are detected, an error message is displayed.
Press <Esc> or <Enter> to back out to the main menu and press again to exit.
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NTI UNIMUX SERIES USB KVM SWITCH
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.
(See Fig. 14 on page 19 for reference.)
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
AT101 Keyboard
Mac keyboard
Full functionality
Extra keys emulation
Extra keys emulation
Full functionality
Power key emulation
Full functionality
Full functionality
Full functionality
Full functionality-except
Application Key
Apple Pro Keyboard
Extra keys emulation
Extra Keys not supported Full functionality
(Eject, Mute, Volume+,
Volume-)
Sun Mouse
Wheel Mouse
Apple Mouse
Full functionality
Full functionality
Right button emulation
Full functionality
Full functionality
Full functionality
Full functionality
Full functionality
Right button emulation
Translation Tables
Use the charts below to type SUN’s additional keys with Win95 and Apple keyboards:
SUN Extra Keys
WINxx or Mac Keyboards
Space Bar + F1
Space Bar + F2
Sun Extra Keys
Stop
Again
Power Key Emulation
Win95 Keyboards
SB+RT Arrow
Mac CPU
Power
Sun CPU
Power
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
Cut
Help
Compose
Volume +
Volume -
Mute
Mouse Click Equivalents
Space Bar + F10
Space Bar + F11
Space Bar + F12
Space Bar + Up Arrow
Space Bar + Down Arrow
Space Bar + Left Arrow
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.
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NTI UNIMUX SERIES USB KVM SWITCH
Esc
~
Num
Lock
Backspace
`
Tab
Enter
Caps Lock
Shift
Shift
Enter
Ctrl
Alt
Alt
Ctrl
Typical 101 Keyboard
Print
Screen
SysRq
Scroll
Lock
Esc
Pause
Break
F1
F2
F3
F4
F5
F6
F7
F8
F9
F10
F11
F12
~
Num
Lock
Backspace
`
Tab
Enter
Caps Lock
Shift
Ctrl
Shift
Enter
Alt
Alt
Ctrl
Windows Logo Key Application Key
Windows Logo Key
Windows USB Keyboard
CD Eject
Key
F11
F12
F13
F14
F15
F1
F2
F3
F4
F5
F6
F7
F8
F9
F10
esc
num
lock
~
`
delete
clear
=
/
*
tab
return
caps Lock
shift
shift
alt
alt
option
enter
control
option
control
Command Key
Command Key
Apple Pro USB Keyboard
Power
key
Help
Stop
Num
Lock
Again
Backspace
Esc
Tab
Undo
Copy
Props
Front
Open
Find
Return
Shift
Control
Shift
Paste
Cut
Enter
Com-
pose
Capslock
Alt
Alt
Graph
Meta Key
Meta Key
SUN USB Keyboard
Figure 14- Keyboard Layouts
International Sun Keyboards
The UNIMUX can recognize international layouts for Sun keyboards. In order to use an international Sun keyboard, follow this
procedure:
1. Power-OFF the CPU connected to the UNIMUX
2. Connect the international keyboard to be used to the UNIMUX
3. Power-ON the CPU connected to the UNIMUX
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 by following the instruction on page 12.
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NTI UNIMUX SERIES USB KVM SWITCH
TROUBLESHOOTING
PROBLEM:
SOLUTION:
Keyboard Errors
Check cable connections on each CPU and the switch.
PROBLEM:
SOLUTION:
No Video
Check cable connections on each CPU and the switch. Verify that keyboard and video connect from each CPU
to matching ports. After reconnecting, CPU may need to be re-booted in order to sense the monitor connection.
PROBLEM:
SOLUTION:
No Mouse Movement
Check cable connections of mouse. Verify that mouse driver was loaded.
INDEX
addressing, 13
Autostatus, 15
baud rate, 13
keyboard features, 18
keyboard translation, 18
limitations, 9
Broadcast mode, 11
Command mode, 10
control methods, 10
country codes, 12
CPUs supported, 1
daisy-chaining, 13
definitions, 3
MAC mice and trackballs, 12
materials supplied, 2
Matrix-Y-1 cable, 14
power-up sequence, 9
Rackmounting, 5
RS232 commands, 15
RS232 Control, 13
RS232 pinout, 13
devices supported, 1
features, 4
Scan mode, 11
front panel control, 10
Installation, 6
international keyboard layouts, 19
Keyboard control, 10
SerTest, 16
Sun sleep mode, 11
Switch Control Program, 16
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 (800) 742-8324 (800-RGB-TECH) or (330) 562-7070 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.
MAN005 Rev 6/6/08
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