G&D DVIMUX4-DL-PS/2 Installation And Operation Manual

G&D DVIMUX4-DL-PS/2

Installation and Operation

About this manual

This manual has been carefully compiled and examined to the state-of-the-art.
G&D neither explicitly nor implicitly takes guarantee or responsibility for the qual-

ity, efficiency and marketability of the product when used for a certain purpose that
differs from the scope of service covered by this manual.

For damages which directly or indirectly result from the use of this manual as well
as for incidental damages or consequential damages, G&D is liable only in cases of
intent or gross negligence.

Caveat Emptor

G&D will not provide warranty for devices that:

 Are not used as intended.
 Are repaired or modified by unauthorized personnel.
 Show severe external damages that was not reported on the receipt of goods.
 Have been damaged by non G&D accessories.

G&D will not be liable for any consequential damages that could occur from using
the products.

Proof of trademark

All product and company names mentioned in this manual, and other documents
you have received alongside your G&D product, are trademarks or registered trade
marks of the holder of rights.

© Guntermann & Drunck GmbH 2011. All rights reserved.

Version 1.31 – 17/03/2011

Firmware: 1.5.4
Guntermann & Drunck GmbH

Dortmunder Str. 4a
57234 Wilnsdorf

Germany
Phone [phone]

Fax [phone]
http://www.GDsys.de

[e-mail]

-

i · G&D DVIMUX4-DL-PS/2

Contents

Contents

Safety instructions ............................................................................................ 1

The »DVIMUX4-DL-PS/2« KVM switch ........................................................ 2

Package contents .............................................................................................. 2

Installation ....................................................................................................... 3

Overview of the interfaces .................................................................................. 3

Setting up the device .......................................................................................... 3

Connecting the console devices .......................................................................... 4

Connecting the computers .................................................................................. 5

Connecting the power supply ............................................................................. 6

Further information .......................................................................................... 7

Support of digital and analog video signals ......................................................... 7

Initiation .......................................................................................................... 8

Status displays .................................................................................................. 8

Switching between the computers ..................................................................... 9

Switching via buttons ......................................................................................... 9

Switching via key combinations ......................................................................... 9

Switching via step keys ...................................................................................... 9

Switching via serial device ............................................................................... 10

Configuration ................................................................................................. 12

Overview of the functions and default settings .................................................. 12

Operating the setup mode ................................................................................ 13

Operating the setup menu ................................................................................ 14

Configuration settings ...................................................................................... 16

Using single or double hotkeys ................................................................... 16

Changing the single hotkey ......................................................................... 17

Changing the double hotkey ....................................................................... 18

Changing the select keys ............................................................................. 19

Disabling/Enabling the hotkey delay .......................................................... 20

Resetting the default settings ...................................................................... 21

Auto-accessing the first channel .................................................................. 22

(De)activating the switching via front buttons ............................................. 22

(De)activating the switching via hotkeys ..................................................... 23

(De)activating the switching via step keys ................................................... 24

Changing the bit rate of the Service port ...................................................... 25

Changing the standard mode of the Service port .......................................... 26

Changing the scan code set of a PS/2 keyboard ........................................... 27

Selecting the PS/2 keyboard type ............................................................... 28

Enabling or resetting a PS/2 mouse ............................................................ 29

Order Numbers ............................................................................................... 30

Technical Data ............................................................................................... 31

G&D DVIMUX4-DL-PS/2 · ii

Safety instructions

Safety instructions

Please read the following safety instructions carefully before you start operating the
G&D product. The instructions well help in avoiding damages to the product and in
preventing possible injuries.

Keep this manual handy for all persons who will be using this product.
Follow all warnings or operating instructions which are on the device or stated in

this user manual.

, Beware of electric shocks

To avoid the risk of electric shock, do not open the device or remove the covers.
If service is required, please contact our technicians.

, Disconnect the main power plug or the power supply before installation

Before installation, ensure that the device has been disconnected from the power
source. Disconnect the main power plug or the power supply of the device.

, Ensure constant access to the power plugs

During the installation of the devices, ensure that the power plugs remain accessible.

! Avoid the risk of tripping over cables

Ensure that there is no risk of tripping over cables.

, Only use a grounded voltage source

Operate this device by using a grounded voltage source.

, Use only the provided G&D power pack

Operate this device with the provided G&D power pack or with the power pack
listed in the manual.

! Operate the device only in designated areas.

The devices are designed for indoor use. Avoid exposure to extreme cold, heat
or humidity.

1 · G&D DVIMUX4-DL-PS/2

The »DVIMUX4-DL-PS/2« KVM switch

The »DVIMUX4-DL-PS/2« KVM switch

The DVIMUX4-DL-PS/2 KVM switch enables you to operate up to four computers
via one console.

The console has to be supplied with a PS/2 keyboard, a PS/2 mouse and a digital
and/or analog monitor. The computers connected to the KVM switch are operated
at the installed console.

The switching between computers takes place either via the pushbuttons on the
front panel, configurable key combinations, or a serial device which is connected to
the Service port.

The front panel of the device provides two USB interfaces to alternatively connect a
USB keyboard and/or a USB mouse to the console.

NOTE:

The KVM switch operates with full keyboard and mouse emulation on each

channel and therefore guarantees error-free booting and secure operation at all time.

Package contents

 1 × DVIMUX4-DL-PS/2 KVM switch (basic or multi-channel variant)
 1 × DVI-Divider adapter per supported video channel
 1 × data cable (Update-Cable-2)
 1 × power cable
 1 × »Installation and Operation« manual

IMPORTANT:

switch. A list of the available KVM cable sets can be found on

KVM cable sets are required to connect the computers to the KVM

G&D DVIMUX4-DL-PS/2 · 2

page 30.

Installation

USB K/M

Active
Status

CPU 1 CPU 2

CPU 3

CPU 4

Service

User

Active
Status

CPU 1 CPU 2

CPU 3

CPU 4

Service

User

Installation

Overview of the interfaces

Front panel of the KVM switch

The front panel of the KVM switch provides two USB interfaces to connect a USB
keyboard and/or mouse.

NOTE:

The PS/2 interfaces to connect the console keyboard and mouse (at the
back panel of the KVM switch) and the USB interfaces at the front panel of the
device can be used at the same time.

The front panel also provides a service port. This port is used for operating the setup

(see Operating the setup menu on page 14 ff.) and for carrying out firmware

menu
updates.

Figure 1: Front view of the KVM switch

The active channel can be selected by using one of the four buttons on the front
panel. The front panel also provides several LEDs

(see Status displays on page 8).

The back panel of the KVM switch

The back panel of the KVM switch provides interfaces to connect the console devices
and the computers. The following page contains a detailed description of these inter
faces.

Setting up the device

1. Ensure that the computers, which are to be connected to the KVM switch, are
turned off. If the computers are provided with both keyboards and mouses,
unplug the cables of the input devices from the PS/2 interfaces.

2. Place the KVM switch between the computers and the console. Please mind the
maximum cable length of five metres between the KVM switch and the computers
which are to be connected.

3. Before installing the KVM switch, decide which button on the front panel of the
device should be assigned to which computer.

3 · G&D DVIMUX4-DL-PS/2

-

Installation

Keyb. Mouse

Line In

Power

CPU 4

DVI-I CPU 4.1

Keyb. Mouse

Line In

CPU 1

DVI-I CPU 1.1

Keyb.

Mouse

Line In

CPU 2

DVI-I CPU 2.1

Keyb. Mouse

Line In

CPU 3

DVI-I CPU 3.1

Monitor 1

Keyb.

Mouse Speaker

CON

Connecting the console devices

NOTE:

Connect the cables of the console and the computers preferably block by
block and from the bottom up. By doing so, you will avoid already connected
cables blocking your view of the interfaces.

Figure 2: Interfaces to connect the console devices

Keyb.: Insert the connection cable of the PS/2 keyboard to this socket.
Mouse: Insert the connection cable of the PS/2 mouse to this socket.

NOTE:

connect a USB keyboard and/or USB mouse to the USB K/M interfaces at
the front panel of the device.

The PS/2 interfaces to connect the console keyboard and mouse (at the back
panel of the KVM switch) and the USB interfaces at the front panel of the device
can be used at the same time.

Speaker: Connect the speaker for the output of the audio signals of the active compu-

ter to this interface.

Monitor 1: Connect the DVI cable of the monitor to this interface.

NOTE:

When deploying a multi-channel variant of the KVM switch, the separate
video signals of computers in a multi-monitor installation can be transmitted to
two (MC2), three (MC3), or four (MC4) monitors.

The device provides up to four video inputs (DVI-I CPU 1.x to 4.x) for each monitor
you want to connect.

If required, connect the other monitors to the Monitor x interfaces of the MC variant.

G&D DVIMUX4-DL-PS/2 · 4

Installation

Power

CPU 4

DVI-I CPU 4.1

Keyb. Mouse

Line In

CPU 1

DVI-I CPU 1.1

Keyb. Mouse

Line In

CPU 2

DVI-I CPU 2.1

Keyb. Mouse

Line In

CPU 3

DVI-I CPU 3.1

Keyb. Mouse

Line In

Monitor 1

Keyb.

Mouse Speaker

CON

Connecting the computers

IMPORTANT:

switch. A list of the available KVM cable sets can be found on

KVM cable sets are required to connect the computers to the KVM

page 30.

Assign the KVM cable sets to the different computers and place them ready for
installation.

NOTE:

To connect the (maximum four) computers to the KVM switch, the inter-

faces as shown below are available for each computer.
The label (e.g. CPU 1) assigns the interface to a specific computer and to the corre-

spondent button on the front panel.

Figure 3: Interfaces to connect the computers

Line In: If the audio signals of the computers are to be output over the speakers which are

connected to the KVM switch, use one of the audio connection cables

(Audio-M/M) to

connect the computer’s Line Out interface to this interface.

Keyb.: Use the purple plug of a Twin-PS/2 cable to connect the

purple PS/2 socket (keyboard) to this interface.

Mouse: Use the green plug of a Twin-PS/2 cable to connect the

green PS/2 socket (mouse) of the computer to this interface.

DVI-I CPU x.1: Connect the computer‘s video output to this interface.

If the computer provides a DVI-D video output, use a digital video cable 
(DVI-D-DL-M/M). In case of an analog VGA output, use an analog video
cable (VGA-M/DVI-A-M).

NOTE:

When deploying a multi-channel variant of the KVM switch, connect the
computer’s second, third, and fourth video output to the
faces.

5 · G&D DVIMUX4-DL-PS/2

DVI-I CPU 1.x to 4.x ínter-

Installation

Power

Monitor 1

Keyb.

Mouse Speaker

CON

Keyb. Mouse

Line In

CPU 4

DVI-I CPU 4.1

Keyb. Mouse

Line In

CPU 1

DVI-I CPU 1.1

Keyb.

Mouse

Line In

CPU 2

DVI-I CPU 2.1

Keyb. Mouse

Line In

CPU 3

DVI-I CPU 3.1

Connecting the power supply

Figure 4: Interface to connect the power supply

Power: Connect the power cable (PowerCable-2 Standard) to a power outlet and the

power socket of the KVM switch.

G&D DVIMUX4-DL-PS/2 · 6

Further information

Further information

Support of digital and analog video signals

Computers that provide digital or analog video signals can be connected to the KVM
switches of the DVIMUX4-DL series. The signal type (digital or analog) that is transmit
ted from computer to KVM switch is displayed unaltered on the connected monitor.

Uniform signal type within one video channel

Install a console monitor that can display the uniform signal type of the computer’s
video channels (only digital or analog).

-

EXAMPLE:

to the KVM switch. A digital monitor is required to display the signals on the con
sole monitor.

The video signal of all computers is digitally (DVI signals) transmitted

-

Different signal types within one video channel

If digital (e.g. via CPU 1) as well as analog (e.g. via CPU 2) video signals of different
computers are transmitted on the same video channel, a DVI-Divider adapter must be
connected to the Monitor

The adapter provides both DVI and VGA output. Connect both outputs of the
adapter to the console monitor.

NOTE:

Choose a monitor which can process digital as well as analog video data.
Such monitors provide a DVI and a VGA interface.

Depending on the input signal, modern monitors usually switch the signal type inde­pendently. Otherwise, the switching from digital to analog signal processing (and vice
versa) must take place manually by the user.

x interface of the KVM switch.

7 · G&D DVIMUX4-DL-PS/2

Initiation

Initiation

Turn on the Power switch on the back panel of the KVM switch.
As soon as the device is supplied with power, the green User LED lights up. The

KVM switch is now ready for operation.

Status displays

The LEDs on the front panel of the device enable you to control the operational status
at all time.

Section LED Status Meaning

CPU 1 ... 4 Active on The KVM switch is currently active on this channel.

off The channel is currently inactive.

Status on The computer is ready for operation.

off No computer is connected or the computer is turned off.

User Active on The keyboard was fully and properly initialised.

slowly
blinking

blinking The setup mode of the KVM switch is active.

Status on The KVM switch is supplied with the necessary voltage.

off The KVM switch is turned off or is not supplied with the

All inputs are forwarded to this computer.

The LED is blinking after the device has been turned on
and until the keyboard has been initialised

necessary voltage.
If necessary, check if the power cable has been properly

connected.

G&D DVIMUX4-DL-PS/2 · 8

Switching between the computers

Switching between the computers

The user can either use the four buttons on the front panel of the device or key com­binations to switch between different computers.

Keyboard and mouse inputs are forwarded to the active computer. The video signal
of the active computer is displayed at the console monitor.

Switching via buttons

How to use the buttons at the device to switch to a certain channel:

 Press the button to enable the desired channel.

Switching via key combinations

How to use key combinations to switch to a certain channel:

 Press Hotkey+Select key on the console keyboard.

The default settings allow you to switch between channels by pressing Ctrl and the
select keys 1 to 4.

IMPORTANT:

nation is released.

NOTE:

installed application program, the key combination of the KVM switch can be
adjusted

Switching between the channels takes place if the pressed key combi-

If one of these key combinations interferes with a key combination of an

(see page 17).

Switching via step keys

IMPORTANT:

to enable this function are provided on

Alternative to using select keys to switch between channels connected to the KVM
switch is to use the step keys to switch the channels in ascending or descending order.

IMPORTANT:

table lists the step keys depending on the active select keys.

9 · G&D DVIMUX4-DL-PS/2

Step keys are deactivated in the default settings. Information on how

page 24.

The active step keys depend on the selected select keys. The following

Switching between the computers

Select keys »Back« step key »Forward« step key

1 ... 4 9 0
NUM 1 ... 4 NUM 9NUM 0
A ... D I K
F1 ... F4 F9 F10

How to use step keys to switch to a certain channel:

1. Press Hotkey+»Back« step key or Hotkey+»Forward« step key on the
console keyboard.

Switching via serial device

The channels can be switched via a serial device connected to the Service port of the
KVM switch.
is terminal emulator operated

The serial device can either be a special keypad or a computer which

.

IMPORTANT:

the KVM switch to successfully switch the channel with a serial end device.

Use the following connection settings and the switching commands of

Connection settings

Use the following connection settings for the serial end device to establish a serial
connection to the KVM switch.

 Bits per second: 115.200 | or : 9.600 (see page 26)
 Data bits: 8
 Parity: none
 Stop bits: 1
 Flow control: none

Enabling the »Switch« mode

IMPORTANT:

menu as well as to switch between the channels with a serial device.
Switching of channels via the serial device is possible only if the Switch mode is active!

If necessary, change the standard mode (see page 27) of the Service port to this mode if
you want to switch channels via the serial device immediately after starting the KVM
switch.

An alternative to switching to the Switch mode is to enter the »!« command during
operation.

The Service port of the KVM switch can be used to operate the setup

G&D DVIMUX4-DL-PS/2 · 10

Switching between the computers

Switching commands

The following commands are provided for switching the channel:

Command Channel

1! 1
2! 2
3! 3
4! 4
<! switch to previous channel
>! switch to next channel

ADVICE:

NOTE:

Use the »?!« command to show the currently accessing channel.

The serial device carries out the command directly after it has been sent.

A message (see below) informs the serial device concerning the success or failure
of the switching of channels.

Messages

The KVM switch confirms the successful execution of a command and otherwise
sends a meassage.

Message Meaning

In[x] All switching to channel [x] successful
E01 invalid channel number (out of range)
E06 channel switching has failed
E10 invalid command
E13 invalid value (out of range)
RS232 mode enabled switch mode (RS232) enabled

11 · G&D DVIMUX4-DL-PS/2

Configuration

Configuration

The configuration of the KVM switch can optionally be changed in the setup mode
or in the setup menu:

 Enable the setup mode using the console keyboard. You can change the configura-

tion via special setup keys.

 The setup menu is operated with a terminal emulator and provides a user interface

to configure the device.

NOTE:

The PS/2 mouse (see page 29) can only be enabled or reset in the setup mode.

The PS/2 keyboard type can only be selected in the setup menu.

Overview of the functions and default settings

The following table lists functions that can be configured as well as their default set­tings of the KVM switch.

Detailed description of the functions is given in the following pages:

Function Default Page

Using single or double hotkeys single hotkeys 16
Changing the single hotkey Ctrl 17
Changing the double hotkey Ctrl+Shift 18
Changing the select keys 1 to 4 19

Disabling/Enabling the hotkey delay 7 seconds 20

Resetting the default settings 21

Auto-accessing the first channel disabled 22

(De)activating the switching via front buttons enabled 22

(De)activating the switching via hotkeys enabled 23

(De)activating the switching via step keys disabled 24

Changing the bit rate of the Service port 115.200 25

Changing the standard mode of the Service port switch 26

Changing the scan code set of a PS/2 keyboard scan code set 2 27

Selecting the PS/2 keyboard type default 28

Enabling or resetting a PS/2 mouse 29

Basic operation of the setup mode as well as the setup menu is explained in the fol­lowing pages.

All functions that can be configured for the KVM switch are described in detail from
page 16 ff.

G&D DVIMUX4-DL-PS/2 · 12

Configuration

Operating the setup mode

The setup mode can be enabled using the console keyboard. After enabling, the con­figuration of the KVM switch can be changed by using various step keys.

NOTE:

Only one setup function can be performed after the calling of the setup mode.

If you want to perform more functions, please restart the setup mode.

How to enable the setup mode:

 Press the Hotkey+Backspace (default: Ctrl+Backspace) key combination to enable

the setup mode.

NOTE:

The successful activation of the setup mode is displayed by the blinking

NUM,  and Scroll control LEDs on the keyboard. Additionally, the yellow User

LED will blink at the KVM switch.

IMPORTANT:

The key combination to enable the setup mode needs to be pressed

for seven seconds.
After the first call of the setup mode, the hotkey delay can be disabled by pressing

the setup key

8 (see page 20).

How to perform a setup function:

 After enabling the setup mode, press one of the setup keys described on the fol-

lowing pages.

How to end the setup mode without performing a function:

 Press ESC to end the setup mode.

13 · G&D DVIMUX4-DL-PS/2

Configuration

Operating the setup menu

The setup menu provides a convenient alternative to view and edit the configuration
of the KVM switch.

The switch can be operated through the setup menu which both easy operation and
adjustment of several settings within a session.

The setup menu can be operated via any terminal emulator (e.g. HyperTerminal or
PuTTY). Use the supplied service cable to connect the computer on which the termi
nal emulator is installed with the Service port of the device.

How to establish a connection within the terminal emulator:

1. Start any terminal emulator (HyperTerminal or PuTTY, for example).

2. Establish a new connection in the terminal emulator and enter the following settings:

 Bits per second: 115.200 | or : 9.600 (see page 25)
 Data bits: 8
 Parity: none
 Stop bits: 1
 Flow control: none

3. Use the provided data cable (Update-Cable-2) to connect the computer to the Service
port at the front panel of the KVM switch.

How to call up the setup menu:

1. Connect the jack plug of the serial data cable to the Service port at the front panel
of the device.

2. Use the terminal emulator to establish the connection to the KVM switch.
As soon as the connection is successfully established, the setup menu will be dis-

played in the terminal emulator (see figure on page 15).

-

NOTE:

If the KVM switch is started while the connection is being established, the

G&D Firmware Update Utility will be displayed briefly before the setup menu opens.
This special utility is solely used by the support team.

G&D DVIMUX4-DL-PS/2 · 14

Configuration

The setup menu lists all settings in tabular form:

Settings for DVIMUX4-DL
 Show System Info ...

Hotkey: Ctrl
Double Hotkey: NO
Select Key: 1..4
Hotkey Delay: YES
Set System Defaults ...
Select Ch.1 after Power up: No
Select Channel via Front Button: Yes
Select Channel via Hotkey: Yes
Select Channel via Step Key: 9 | 0
Service RS232 Bitrate: 115200
Service RS232 Startup Mode: Setup Menu
PS/2 Scancode Set: 2
PS/2 Keyboard Type: Standard
USB Keymode: ...

'Space': Toggle 'S': Save

The right column displays the active setting of the respective function.
Menu items with submenus containing more settings are indicated with three dots

(...) in the right column.

NOTE:

The USB-Keymode settings of the different channels only applies for USB vari-

ants of the KVM switch and is therefore not described in this manual.

How to operate the setup menu:

1. Use the Arrow or Arrow keys to select the desired menu item.
The active row is marked with angular  arrows .

2. Depending on the type of menu item, the following action(s) can be carried out:
 Menu items whose settings are displayed in the right column can be changed

by pressing the

Space key (repeatedly).

 A menu item that has a sub-dialogue available can be opened by pressing Enter.

NOTE:

The following pages provide detailed information on how to change a cer-

tain function.

15 · G&D DVIMUX4-DL-PS/2

Configuration

Configuration settings

Using single or double hotkeys

If many application programs with key combinations are operated on one computer
or if different G&D devices are used in one cascade, the number of available key
combinations might be restricted.

In such a case, it is appropriate to apply double hotkeys.

How to enable single or double hotkeys:

1. Press Hotkey+Backspace (default: Ctrl+Backspace) to enabled the setup mode.
If the hotkey delay is active, press the key combination for seven seconds.

2. Press one of the setup keys listed below to enable single or double hotkeys:

Setup Mode

S  enables single hotkeys
A  disables double hotkeys

1. Use the terminal emulator to establish a connection to the KVM switch.
If the setup menu is not displayed, the Switch mode of the service port is

enabled. Enter

Setup Menu

2. Use the Arrow or Arrow keys to select the Double Hotkey entry.

3. Press the Space key (repeatedly) to enable the usage of single or double hotkeys:

No  enables single hotkeys
Yes  disables double hotkeys

4. Press the S key to save your settings.

»#!« to change to the setup menu.

Depending on your settings, the active hotkey is converted into a double hotkey (or
vice versa):

Single Hotkey Double Hotkey

Ctrl Ctrl+Shift

Alt Alt+Shift

Alt Gr Alt Gr+Ctrl

Win Win+Ctrl

Shift Shift+Win

G&D DVIMUX4-DL-PS/2 · 16

Configuration

Changing the single hotkey

Press the hotkey and the Backspace key simultaneously to start the setup mode of the
KVM switch. Pressing the hotkey and the select key simultaneously enables the
switching of channels.

If an application program or another G&D device uses the same hotkey within the
cascade, the hotkey can be changed.

NOTE:

The single hotkey Ctrl is preset at default.

How to change the current hotkey:

1. Press the Hotkey+Backspace (default: Ctrl+Backspace) key combination to
enable the setup mode.

If the hotkey delay is active, press the key combination for seven seconds.

Setup Mode

2. Press one of the setup keys listed below to enable a certain hotkey:

Ctrl  enables Ctrl hotkey
Alt  enables Alt hotkey
Alt Gr  enables Alt Gr hotkey
Win  enables Win hotkey
Shift  enables Shift hotkey

1. Use the terminal emulator to establish a connection to the KVM switch.
If the setup menu is not displayed, the Switch mode of the service port is

enabled. Enter

Setup Menu

2. Use the Arrow or Arrow keys to select the Hotkey entry.

3. Press the Space key (repeatedly) to enable a certain hotkey:

Ctrl  enables Ctrl hotkey
Alt  enables Alt hotkey
Alt Gr  enables Alt Gr hotkey
Win  enables Win hotkey
Shift  enables Shift hotkey

4. Press the S key to save your settings.

»#!« to change to the setup menu.

17 · G&D DVIMUX4-DL-PS/2

Configuration

Changing the double hotkey

If the use of double hotkeys is enabled (see page 16), press the double hotkey and the

Backspace key simultaneously to start the setup mode of the KVM switch. Switching

of channels takes place by pressing the double hotkey and a select key at the same
time.

If an application program or another G&D device uses the same hotkey within the
cascade, the hotkey can be changed.

How to change the current double hotkey:

1. Requirement: enabled double hotkeys (see page 16).

2. Press Double hotkey+Backspace (default: Ctrl+Shift+Backspace) to enable the

setup mode.

Setup Mode

If the hotkey delay is active, press the key combination for seven seconds.

3. Press one of the setup keys listed below to activate the desired double hotkey:

Ctrl  enables Ctrl+Shift double hotkey
Alt  enables Alt+Shift double hotkey
Alt Gr  enables Alt Gr+Ctrl double hotkey
Win  enables Win+Ctrl double hotkey
Shift  enables Shift+Win double hotkey

1. Requirement: active double hotkeys (see page 16).

2. Use the terminal emulator to establish a connection to the KVM switch.

If the setup menu is not displayed, the Switch mode of the service port is

Setup Menu

enabled. Enter

3. Use the Arrow or Arrow keys to select the Hotkey entry.

4. Press the Space key (repeatedly) to enable the desired double hotkey:

Ctrl+Shift  enables Ctrl+Shift double hotkey
Alt+Shift  enables Alt+Shift double hotkey
Alt Gr+Ctrl  enables Alt Gr+Ctrl double hotkey
Win+Ctrl  enables Win+Ctrl double hotkey
Shift+Win  enables Shift+Win double hotkey

5. Press the S key to save your settings.

»#!« to change to the setup menu.

G&D DVIMUX4-DL-PS/2 · 18

Configuration

Changing the select keys

In the default settings, use the enabled select keys 1 to 4 to switch between the com­puters that are connected to the KVM switch.

For instance, you can switch to computer 2 by pressing Hotkey+2 (default: Ctrl+2).

How to choose a different select key set:

1. Press Hotkey+Backspace (default: Ctrl+Backspace) to enable the setup mode.
If the hotkey delay is active, press the key combination for seven seconds.

2. Press one of the setup keys listed below to activate the particular set of select

Setup Mode

keys to switch the computers

1  enables select keys 1, 2, 3, 4
NUM 1  enables select keys NUM 1, [...], NUM 3, NUM 4
Z  enables select keys A, B, C, D
F1  enables select keys F1, F2, F3, F4

1. Use the terminal emulator to establish a connection to the KVM switch.
If the setup menu is not displayed, the Switch mode of the service port is

enabled. Enter

Setup Menu

2. Use the Arrow or Arrow keys to select the Select Keys entry.

»#!« to change to the setup menu.

3. Press the Space key (repeatedly) to enable the particular set of select keys to
switch the computers 1 to 4:

1 ... 4  enables select keys 1, 2, 3, 4
NUM 1 ... 4  enables select keys NUM 1, [...], NUM 3, NUM 4
A ... D  enables select keys A, B, C, D
F1 ... F4  enables select keys F1, F2, F3, F4

4. Press the S key to save your settings.

1 to 4:

19 · G&D DVIMUX4-DL-PS/2

Configuration

Disabling/Enabling the hotkey delay

Press the Hotkey+Backspace (default: Ctrl+Backspace) key combination for seven sec­onds in order to start the setup mode in the default settings.

You can disable the hotkey delay if you want to start the setup mode immediately
after pressing the key combination.

How to disable/enable the hotkey delay:

1. Press Hotkey+Backspace (default: Ctrl+Backspace) to enable the setup mode.

If the hotkey delay is active, press the key combination for seven seconds.

2. Press one of the setup keys listed below to disable/enable the hotkey delay:

Setup Mode

7  enables hotkey delay
8  disables hotkey delay

1. Use the terminal emulator to establish a connection to the KVM switch.

If the setup menu is not displayed, the Switch mode of the service port is
enabled. Enter

Setup Menu

2. Use the Arrow or Arrow keys to select the Hotkey Delay entry.

3. Press the Space key (repeatedly) to disable/enable the hotkey delay:

Yes  enables hotkey delay
No  disables hotkey delay

4. Press the S key to save your settings.

»#!« to change to the setup menu.

G&D DVIMUX4-DL-PS/2 · 20

Configuration

Resetting the default settings

This function resets the default settings of the KVM switch.

IMPORTANT:

switch as shown on

Performing this function reactivates the default settings of the KVM

page 12!

How to reset the default settings:

1. Press Hotkey+Backspace (default: Ctrl+Backspace) to enable the setup mode.
If the hotkey delay is active, press the key combination for seven seconds.

2. Press the setup key listed below to reset the default settings:

Setup Mode

D  resets default settings

1. Use the terminal emulator to establish a connection to the KVM switch.
If the setup menu is not displayed, the Switch mode of the service port is

enabled. Enter

Setup Menu

2. Use the Arrow or Arrow keys to select the Set System Defaults entry.

»#!« to change to the setup menu.

3. Press Enter to reset the default settings.

4. Confirm the opening security query with Enter.
Cancel the function by pressing the Q key.

21 · G&D DVIMUX4-DL-PS/2

Configuration

Auto-accessing the first channel

Usually, after turning on the device, the recently active channel is accessed. The set­ting can be changed so that the computer connected to the first channel is automati­cally accessed when the device is turned on.

How to disable/enable the automatic access of the first channel after booting:

NOTE:

The option to automatically access the first channel after booting the device

can only be disabled/enabled in the setup menu.

1. Use the terminal emulator to establish a connection to the KVM switch.

If the setup menu is not displayed, the Switch mode of the service port is
enabled. Enter

Setup Menu

2. Use the Arrow or Arrow keys to select the Select Ch.1 after Power up row.

»#!« to change to the setup menu.

3. Press the Space key (repeatedly) to select between the following options:

No  accesses the last active channel after booting
Yes  accesses channel 1 after booting

4. Press the S key to save your settings.

(De)activating the switching via front buttons

In the defaults, you can use the buttons on the front panel to switch between the
computers.

If desired, you can deactivate the front buttons in the setup menu.

How to enable/disable the switching via front buttons:

HINWEIS:

Use the setup menu to (de)activate the switching via front buttons.

1. Use the terminal emulator to establish a connection to the KVM switch

and connect the serial data cable to the Service socket.

2. Use the Arrow or Arrow keys to select the 

Select Channel via Front Button entry.

Setup Menu

3. Press the Space key (repeatedly) to choose one of the following options:

Yes  disables the switching via front button
No  enables the switching via front button

4. Press the S key to save your settings.

G&D DVIMUX4-DL-PS/2 · 22

Configuration

(De)activating the switching via hotkeys

In the defaults, you can use hotkeys to switch between the computers.
If desired, you can deactivate this kind of switching in the setup menu.

How to enable/disable the switching via hotkeys:

NOTE:

Use the setup menu to (de)activate the switching via hotkeys.

1. Use the terminal emulator to establish a connection to the KVM switch
and connect the serial data cable to the Service socket.

2. Use the Arrow or Arrow keys to select the 

Select Channel via Hotkey entry.

Setup Menu

3. Press the Space key (repeatedly) to choose one of the following options:

Yes  disables the switching via hotkeys
No  enables the switching via hotkeys

4. Press the S key to save your settings.

23 · G&D DVIMUX4-DL-PS/2

Configuration

(De)activating the switching via step keys

Instead of using hotkeys to switch to one of the channels connected to the KVM
switch, you can also use step keys to switch the channels in ascending or descending
order.

NOTE:

The use of step keys is disabled in the default settings.

After enabling the step keys, you can use the following key combinations to switch
channels in ascending or descending order:

 descending: »back« step key (default: Hotkey+9)
 ascending: »forward« step key (default: Hotkey+0)

IMPORTANT:

The active step keys are dependent on the selected select keys (see

page 19). The following table lists the step keys depending on the active select keys.

Select keys »Back« step key »Forward« step key

1 ... 4 9 0
NUM 1 ... 4 NUM 9NUM 0
A ... C I K
F1 ... F4 F9 F10

How to disable/enable the use of step keys:

NOTE:

Use the setup menu to enable or disable the usage of step keys.

1. Use the terminal emulator to establish a connection to the KVM switch.

Now plug the serial data cable into the service socket.

2. Use the Arrow or Arrow keys to select the Select Channel via Step Key entry.

Setup Menu

3. Press the Space key (repeatedly) to choose between the following options:

Off  step keys disabled
[Step-Keys]  step keys enabled

4. Press the S key to save your settings.

G&D DVIMUX4-DL-PS/2 · 24

Configuration

Changing the bit rate of the Service port

The Service port of the KVM switch can be used both for operating the setup menu
and for switching the channels with a serial device.

The Service port transfers a certain amount of data per time unit. The bitrate is given
in bit/s.

IMPORTANT:

Transmitter and receiver of the data must use the same bitrate to
ensure successful communication between the terminal emulator or a serial device
and the KVM switch.

If the bitrate cannot be adjusted to the standard bitrate of the KVM switch (115.200
bit/s) in the terminal emulator or the serial device, the bitrate of the Service port can
be modified.

How to select the bit rate of the Service port of the KVM switch:

1. Use the terminal emulator to establish a connection to the KVM switch.
If the setup menu is not displayed, the Switch mode of the service port is

enabled. Enter

Setup Menu

2. Use the Arrow or Arrow keys to select the Service RS232 Bitrate row.

»#!« to change to the setup menu.

3. Press the Space key (repeatedly) to select between the following bitrates:

115200  serial data transmission with 115.200 bit/s
9600  serial data transmission with 9.600 bit/s

4. Press the S key to save your settings.

25 · G&D DVIMUX4-DL-PS/2

Configuration

Changing the standard mode of the Service port

The Service port of the KVM switch can be used both for operating the setup menu
and for switching the channels with a serial device.

IMPORTANT:

Depending on the purpose of use, the KVM extender distinguishes

between the modes listed below.

The Setup Menu mode is enabled in the default settings of the KVM switch. In this
mode, the Setup Menu is immediately displayed in the terminal emulator after a ses
sion is established with the KVM switch.

If you primarily use the Service port for switching the active channel via a serial device,
it is recommendable to enable the

ADVICE:

The activated mode when starting the KVM extender can be changed

Switch mode.

anytime during operation:

 By entering the »#!« command, the KVM switch changes to the Setup menu mode.
 By entering the »!« command, the KVM switch changes to the Switch mode

How to choose the mode to be enabled when booting the KVM extender:

1. Use the terminal emulator to establish a connection to the KVM switch.

If the setup menu is not displayed, the Switch mode of the service port is
enabled. Enter

Setup Menu

2. Use the Arrow or Arrow keys to select the Service RS232 Startup Mode row.

»#!« to change to the setup menu.

3. Press the Space key (repeatedly) to select between the following options:

Setup Menu  enabled Setup Menu mode when starting KVM extender
Switch  enabled Switch mode when starting KVM extender

4. Press the S key to save your settings.

-

G&D DVIMUX4-DL-PS/2 · 26

Configuration

Changing the scan code set of a PS/2 keyboard

If a key is pressed on the PS/2 keyboard, the keyboard processor sends a data packet
that is called scan code. The two common scan code sets (sets 2 and 3) contain dif
ferent scan codes.

The KVM switch interprets all inputs of the PS/2 keyboard with scan code set 2.If
the pipe (“|”) cannot be entered or if the arrow keys of the keyboard do not work as
expected, it is recommended to switch to scan code set 3.

How to change the setting of the scan code set:

1. Press Hotkey+Backspace (default: Ctrl+Backspace) to enable the setup mode.
If the hotkey delay is active, press the key combination for seven seconds.

2. Press one of the setup keys listed below to activate a particular scan code set:

Setup Mode

2  enables scan code set 2 for PS/2 keyboard inputs
3  enables scan code set 3 for PS/2 keyboard inputs

3. Restart the KVM switch. After the restart, the keyboard is initialised and
the selected scan code set does apply.

1. Use the terminal emulator to establish a connection to the KVM switch.
If the setup menu is not displayed, the Switch mode of the service port is

enabled. Enter

Setup Menu

2. Use the Arrow or Arrow keys to select the PS/2 Scancode Set row.

3. Press the Space key (repeatedly) to activate a particular scan code set:

2  enables scan code set 2 for PS/2 keyboard inputs
3  enables scan code set 3 for PS/2 keyboard inputs

4. Press the S key to save your settings.

5. Restart the KVM switch. After the restart, the keyboard is initialised and
the selected scan code set does apply.

»#!« to change to the setup menu.

-

27 · G&D DVIMUX4-DL-PS/2

Configuration

Selecting the PS/2 keyboard type

In addition to standard PS/2 keyboards, the KVM switch also supportsPixelPower Clar­ity (blue) and SKIDATA1 keyboards.

Select the keyboard type if you want to use such a keyboard at the console.

NOTE:

The PS/2 keyboard type can only be selected in the setup menu.

How to select the PS/2 keyboard type:

1. Use the terminal emulator to establish a connection to the KVM switch.

If the setup menu is not displayed, the Switch mode of the service port is
enabled. Enter

Setup Menu

2. Use the Arrow or Arrow keys to select the row PS/2 Keyboard Type.

3. Press the Space key (repeatedly) to select the keyboard type:

PixelPower Blue  PixelPower (blue) keyboard
SKIDATA1  SKIDATA1 keyboard
Standard  standard PS/2 keyboard

4. Press the S key to save your settings.

»#!« to change to the setup menu.

G&D DVIMUX4-DL-PS/2 · 28

Configuration

Enabling or resetting a PS/2 mouse

Compared to USB mouses, PS/2 mouses do not support hot plug technology. You
can therefore insert the PS/2 plug during operation, but it may be possible that the
computer does not detect the input device.

To enable or reset the PS/2 mouse, the KVM switch can be used to send a special
command to the computer.

Since the commands differ depending on the mouse type and the installed operating
system, four different setup keys are provided.

NOTE:

A PS/2 mouse can only be reset or enabled in the setup mode.

How to enable or reset a PS/2 mouse:

1. Press Hotkey+Backspace (default: Ctrl+Backspace) to enable the setup mode.
If the hotkey delay is active, press the key combination for seven seconds.

2. Press one of the following setup keys to enable or reset the PS/2 mouse:

Setup Mode

M  enables the PS/2 mouse of a Linux PC
I  enables the PS/2 wheel mouse of a Linux PC
E  enables the PS/2 wheel mouse with additional keys of a Linux PC
R  resets the PS/2 mouse interface of a Windows PC

29 · G&D DVIMUX4-DL-PS/2

Order Numbers

Order Numbers

DVIMUX4-DL-PS/2 DVIMUX4-DL-USB

KVM SWITCHES

A210 0098 DVIMUX4-DL-PS/2
A210 0100 DVIMUX4-DL-PS/2-RM
A210 0102 DVIMUX4-DL-MC2-PS/2
A210 0103 DVIMUX4-DL-MC2-PS/2-RM
A210 0106 DVIMUX4-DL-MC3-PS/2
A210 0107 DVIMUX4-DL-MC3-PS/2-RM
A210 0110 DVIMUX4-DL-MC4-PS/2
A210 0111 DVIMUX4-DL-MC4-PS/2-RM

CABLE SETS

A610 0117 CPU-DVID-DL-PL-2
A610 0121 CPU-DVID-DL-PL-5
A610 0133 CPU-DVIA-PL-2
A610 0137 CPU-DVIA-PL-5

KVM SWITCHES

A210 0099 DVIMUX4-DL-USB
A210 0101 DVIMUX4-DL-USB-RM
A210 0104 DVIMUX4-DL-MC2-USB
A210 0105 DVIMUX4-DL-MC2-USB-RM
A210 0108 DVIMUX4-DL-MC3-USB
A210 0109 DVIMUX4-DL-MC3-USB-RM
A210 0112 DVIMUX4-DL-MC4-USB
A210 0113 DVIMUX4-DL-MC4-USB-RM

CABLE SETS

A610 0125 CPU-DVID-DL-U-2
A610 0129 CPU-DVID-DL-U-5
A610 0088 CPU-DVIA-U-2
A610 0089 CPU-DVIA-U-5

G&D DVIMUX4-DL-PS/2 · 30

Technical Data

Technical Data

General features of the series

DVIMUX4-DL-PS/2 SERIES

No. of video sources per computer/console:  see variant features
Console Connections per device: 1

Connection: directly at the device

Interfaces
for console

Computer Connections per device: 4

Interfaces
for computer

Video Signal type: DVI-I (analog and digital video)

Audio Type: analog

Update Mode: local service socket

Power supply Type: internal power pack

Casing Material: anodised aluminium
Conformity CE, RoHs

Video:  see variant features

PS/2 keyboard/mouse: 2 × PS/2 socket

USB keyboard/mouse: 2 × USB-A socket

Audio: 1 × 3,5-mm jack plug (Speaker)

Connection: with optional cable sets at the device

Video:  see variant features

Keyboard: 4 × PS/2 socket

Mouse: 4 × PS/2 socket

Audio: 4 × 3,5-mm jack plug (Line Out)

Video resolution (digital): max. 2560 × 1600 @ 60 Hz

Video resolution (analog): max. 1920 × 1440 @ 75 Hz

Digital colour mode: 24 Bit

DDC: Enhanced Display Data Channel

Mixed mode: is supported (digital/analog)

Bandwidth: 22 kHz

Interface: 2,5-mm jack plug

Connection: IEC plug (IEC-320 C14)

31 · G&D DVIMUX4-DL-PS/2

Technical Data

Individual variant features

DVIMUX4-DL-PS/2

No. of video sources per computer/console: 1
Interfaces

for console
Interfaces

for computer
Power supply Current consumption (max.): 115mA@240VAC; 210mA@100VAC

Casing Dimensions (W × H × D): 270 x 44 x 210 mm

Operational environ­ment

DVIMUX4-DL-MC2-PS/2

No. of video sources per computer/console: 2
Interfaces

for console
Interfaces

for computer
Power supply Current consumption: 155mA@240VAC; 310mA@100VAC

Casing Dimensions (W × H × D): 270 × 66 × 210 mm

Operational environ­ment

Video: 1 × DVI-I socket

Video: 4 × DVI-I socket

Power consumption (max.): 13,4W@240VAC; 12,9W@100VAC

Weight: approx. 1,6 kg

Temperature: +5 to +45 °C

Air humidity: < 80%, non-condensing

Video: 2 × DVI-I socket

Video: 4 × 2 DVI-I sockets

Power consumption: 20,0W@240VAC; 19,1W@100VAC

Weight: approx. 1,7 kg

Temperature: +5 to +45 °C

Air humidity: < 80%, non-condensing

DVIMUX4-DL-MC3-PS/2

No. of video sources per computer/console: 3
Interfaces

for console
Interfaces

for computer
Power supply Current consumption: 190mA@240VAC; 410mA@100VAC

Casing Dimensions (W × H × D): 270 × 88 × 210 mm

Operational environ­ment

Video: 3 × DVI-I socket

Video: 4 × 3 DVI-I sockets

Power consumption: 25,5W@240VAC; 25,1W@100VAC

Weight: approx. 2,1 kg

Temperature: +5 to +45 °C

Air humidity: < 80%, non-condensing

G&D DVIMUX4-DL-PS/2 · 32

Technical Data

DVIMUX4-DL-MC4-PS/2

No. of video sources per computer/console: 4
Interfaces

Video: 4 × DVI-I socket

for console
Interfaces

Video: 4 × 4 DVI-I sockets

for computer
Power supply Current consumption: 230mA@240VAC; 530mA@100VAC

Power consumption: 32,4W@240VAC; 32,6W@100VAC

Casing Dimensions (W × H × D): 270 × 132 × 210 mm

Weight: approx. 2,5 kg

Operational environ­ment

Temperature: +5 to +40 °C

Air humidity: < 80%, non-condensing

33 · G&D DVIMUX4-DL-PS/2

Notes

G&D DVIMUX4-DL-PS/2 · 34

Notes

35 · G&D DVIMUX4-DL-PS/2

Notes

G&D DVIMUX4-DL-PS/2 · 36

Guntermann & Drunck GmbH

Dortmunder Str. 4a
57234 Wilnsdorf

Germany
Phone [phone]

Fax [phone]
http://www.GDsys.de

[e-mail]

A9200087