D-Link DKVM-2 User manual

DKVM-2/4
2/4-
Port Keyboard, Video,
and Mouse Switch
Manual
Rev. 1.2

II
Contents
Introduction..............................................................................1
Hardware Installation...............................................................2
Front Panel Layout.....................................................................................2
Rear Panel Layout.....................................................................................2
Using the DKVM-2/4................................................................6
“Select” button............................................................................................6
Keyboard “Hot Key commands................................................................7
Optional cable.............................................................................................7
Troubleshooting.......................................................................8
Keyboard.....................................................................................................8
Mouse ..........................................................................................................8
Video..........................................................................................................10
Product Features.....................................................................1
Specifications........................................................................11
FCC Certifications................................................................12
D-Link Offices........................................................................13
Technical Support........................................................15
Warranty......................................................................16
Registration.................................................................20

1
Introduction
Thank you for purchasing the DKVM-2/4 KVM Switch. This product will
ensure easyand accurate control over 2 or 4 PCs through a single
console. The DKVM-2/4 is compatible with mice and keyboard with
PS/2 type connectors. Older style keyboards or mice can be used with
PS/2 adapters in the case that the device is PS/2 compatible. Most
older style serial keyboard and mice are not compatible with PS/2.
Advanced features like keyboard and mouse emulation for error free
boot-ups and support is also provided for the Microsoft Intellimouse
and Microsoft Intellimouse Explorer.
The DKVM-2/4 supports high resolutions. Resolutions up to 1920 x
1440 are supported with no deterioration of image quality.
Switching between PCs can be accomplished in two ways: through
keyboard “Hot Key” commands or by using the convenient front-panel
“Select” pushbutton controls.
Product Features
§Allows a user to control 2/4 computers from one console.
§Works with DOS, Windows, OS/2, UNIX, Linux etc.
§No drivers or other additional software required.
§Keyboard and mouse emulation allows error-free boot-up.
§The status of the CAPS LOCK, SCROLL LOCK and NUM
LOCK keys is preserved for each of the computers.
§Uses inexpensive and commonly available cables. Molded KVM
cables are recommended. Model No. DKVM-CB
§Supports Monitor resolutions of up to 1920 x 1440.
§Supports VGA, SVGA and Multisync monitors.
§“Select” push-button or keyboard “Hot Key” control.
§Comes with Auto-Scan mode for convenient automatic
switching.
§Front panel status LEDs give a clear indication of the active PC.
§Audible feedback when switching between computers.

2
Package Contents
In addition to this User’s Guide, please check that you have the
following contents of this package…
§DKVM-2/4
§Power Adapter
Hardware Installation
This section will explain how to connect the console and the
computers to the DKVM-4 switch unit. First the layout of front and rear
panel will be shown.
FRONT PANEL LAYOUT
REAR PANEL LAYOUT
Before you start connecting your computers and console devices to
the DKVM-2/4, please make sure that everything is powered off.

3
Note: Please make sure the mouse you are planning to use is a 2
Button or 3 Button mouse, and that it is fully Microsoft
Mouse compatible. If your mouse driver is not Microsoft
mouse driver compatible, please do not uninstall your
mouse driver or the existing driver from the PC and then
install the Windows native mouse driver.
Please follow the steps below closely and in the order as shown,
otherwise, keyboard and/or mouse errors may occur.
Step 1.Place the DKVM-2/4 in a convenient location. Its small size
makes it easy to place on the desktop. Do take the length of
the cables in consideration when placing the KVM switch unit.
Step 2.We will now connect the console devices. Connect your
monitor to the DKVM-2/4. The 15-pin connector coming from
your monitor must be inserted into the unit on the rear panel.
Connect it to the 15 pin HDDB connector labeled
=MONITOR=.
Step 3.Connect your PS/2 keyboard and PS/2 mouse to the front
panel of the DKVM-2/4. The connections should be made to
the two 6-pin Mini DIN connectors labeled =CONSOLE= as
shown below.

4
Step 4.Now the PC connections will be made with the monitor (VGA)
connections. Connect a VGA cable (15-pin HDDB Male /
Male) with the Male side to both the PC and to the connector
labeled VGA on the rear panel of the DKVM-2/4 unit. Repeat
this for all PCs.
Step 5.Now connect the PS/2 mouse cables from your computers to
the DKVM-2/4 unit. Connect a mouse cable (6-pin Mini DIN
Male / Male) to the PC and to the connector with the mouse
symbol on the rear panel of the DKVM-2/4 unit. Repeat this for
all PCs.
Step 6.To finish the hardware installation, connect the PS/2 keyboard
cables from your computers to the DKVM-2/4 unit. Connect a
keyboard cable (6-pin Mini DIN Male / Male) to the PC and to

5
the connector with the keyboard symbol on the rear panel of
the DKVM-2/4 unit. Repeat this for all PCs.
Step 7.Now make sure to verify all cables. In particular, keyboard and
mouse cables should be checked because they are easily
switched and they use the same type of connector.
Step 8.Attach the power supply to the DKVM-2/4 unit and plug it into
a power outlet. You will see the LED for Port 1 light up, and
you will hear a beep. Switch on your monitor.
Step 9.Now power up all computers simultaneously. The first
computer that is connected to port PC1 will be shown on the
monitor. You may check to see if the mouse and keyboard
work after the system has booted up. If this is OK, use the
“Select” button to choose the next computer and verify the
functionality in the same way. If you find errors, re-check all
cables for proper connections before going to the
troubleshooting section of this manual.

6
Note: Please do not switch the PC port (i.e. Do not press the push
button of KVM switch or run hot key) while the computers
are under their boot-up process.
Normally, during boot-up process, each PC will
communicate with the keyboard and mouse. If you switch
PC ports on the KVM at this moment, it will cause
communication errors or initialization failures between PC
and keyboard or mouse.
Using the DKVM-2/4
The DKVM-2/4 switch unit provides two ways to select which computer
is the active system. Use either the “Select” button on the unit, or
make use of the keyboard “Hot key” commands.
You may notice that the mouse cannot be used for around 2 seconds
when the DKVM-2/4 switches to another computer. This is normal and
is caused by synchronization that makes sure the mouseoperates
properly.
“SELECT”BUTTON
Pressing the Select button cycles through computers 1 ~ 2/4

7
KEYBOARD “HOT KEY COMMANDS
To send “Hot Key” commands to the DKVM-2/4 unit, press the
SCROLL LOCK Key twice within 2 seconds.
You will be given a beep as confirmation. Now press a command key
to give a “Hot Key” command. The following commands are supported:
FIRST KEY SECOND KEY THIRD KEY COMMAND
SCROLL LOCK SCROLL LOCK 1Switch to First PC
SCROLL LOCK SCROLL LOCK 2Switch to Second PC
SCROLL LOCK SCROLL LOCK 3Switch to Third PC
SCROLL LOCK SCROLL LOCK 4Switch to Fourth PC
SCROLL LOCK SCROLL LOCK ?Switch to Previous PC
SCROLL LOCK SCROLL LOCK ?Switch to Next PC
SCROLL LOCK SCROLL LOCK SGo to Auto Scan mode
In Auto-Scan mode, the DKVM-2/4 unit will switch to the next
computer every 10 seconds. This means that all computers will be
shown on the monitor in a row, starting with the first computer after the
last one has been shown.
In this mode, there is no mouse or keyboard control, which is needed
to prevent errors. Erratic input will result if a mouse move or keyboard
key press is given just as the unit switches to the next computer.
To exit Auto-Scan mode, press the SPACE BAR. The DKVM-2/4 will
stop at the last computer shown.
OPTIONAL CABLE
Model No. DKVM-CB 6 feet (180cm) 3-in-one Cable kit is available for
DKVM-2/4 KVM switch. Visit www.dlinkshop.com for details.

8
Troubleshooting
KEYBOARD
My keyboard is not detected, or a keyboard error is given during
boot-up. What can be the cause?
Please verify that the keyboard cables are inserted properly.
The computers all boot up properly, but the keyboard is not
functional. What can be the cause?
One of the following may be the case:
§Make sure the keyboard is plugged into the DKVM-2/4 unit
properly.
§Verify that the keyboard works when plugged into the computer
directly. (You will have to shut down your computer first to do
this).
§Try using a different keyboard.
§Read your motherboard documentation and make sure that the
PS/2 keyboard IRQ is enabled. (This can be set for most
computers in the BIOS setup pages)
MOUSE
My mouse is not detected during boot up. What can be the
cause?
One of the following may be the case:
§Please verify that all mouse cables are inserted properly. Check
especially for a mix-up with the PS/2 keyboard cable, they have
the same kind of connector and are therefore easily confused.
§Read your motherboard documentation and make sure that the
PS/2 mouse IRQ is enabled. (This can be set for most
computers in the BIOS setup pages)