Digitus KC-221 User manual

2-PORT USB KVM
SWITCH MIT USB 2.0 HUB
User's Manual
Ver:1.0

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Table of Contents
I. Introduction…………………………………………………………...3
1. Features… … … … … … … … … …… … … … … … … … … … …… … … …..........3
2. Package Contents… … … … … … … … … … … … … … … … … … … … … … ….. 3
II. Specifications… … … … … … … … … … … … … … … … … .… .… … … .4
1. General… … … … … …… … … … … … … … … … … …… … … … … ..… … ........ 4
2. Connectors… … … … … … … … … … … … … … … … … …… … … … .… … … … 5
3. LED Indicators… … … … … … … … … … … … … … … … … … … … ..................6
3.1 Host Indicators… … … … … … … … … … … … … … … … … … … .................6
3.2 USB HUB switch with PC1/PC2 Indicators… … … … .… … ..… … … … … .6
3.3Auto-switch /Auto Scan Indicator… … …… … … … … .… … … … … … … ...6
III. 2-port USB KVM installation… … … … … … …… ...… … … … … ..7
1. System requirements… … … … … … … … … … … … … … … … … ..… ............... 7
2. Hardware installation… … … … … … … … … … … … … … … … … ....… … … ….7
3. Windows 98/98SE installation… … … … … … … … … … … … … … … … … … .. 9
4. Driver installation… … … … … … … … … … … … … … … … … … ....… … … … ..10
4.1 OS without driver installation… … … … … .… … … … … … ..… ..… … … … 10
4.2 Windows 98//98SE… … … … … … … … .… ..… … … … … … ..… .… … … … 10
5. On-Screen-Display(OSD) utility software installation for Windows… … … 15
6. Using the OSD Program.… … … … … … … … … … … … … … … ....… … … ..… 17
6.1 Activating the OSD Program … … … … … … … … … … … .… ...… … … ... 18
6.2 Interpreting the OSD window… … … … … … … … … … …… .… … … …… .19
6.3 Switching the active host with the OSD Program … … … … ...… … … … … 20
6.4 Hiding and closing the OSD Program …… … … … … … .… … … … … … … 21
IV. Operate the 2-port USB KVM… … … … … … … … ........................22
1. Manual Switch by push button… … … … … … … … … … … … … … … … … … ..22
1.1 Host selection… … … … … … … … … … … … …… … … … … … … … … … .22
1.2 Activate Auto Switch Function… … … … … … … … … … … … … … … …..22
2. Hot Key Switch(PS/2 Keyboard)… … … … … … … … …… … … … … … … … .. 22
3. On-Screen-Display(OSD) Switch (Windows)… … … … … … … … … … … … 23
4. AutoScan Function … … … … …… … … … … … … … … …… … … … … … … 23
4.1 ActivateAutoscan… … … … … …… … … … … … … … … … … … …… … … 23
4.2 Disable Autoscan… … … … … … … … … … … … … … … … … … … … … … 23
5. Sun Micro System Function Emulation … … … … … … … …… … … … … … … 24
6. Hot Key definition table… … … … … … … … … … … … … …… … … … … … … 25
V. Application Notes……………………………………………………. 26

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2-port USB KVM Switch
I. Introduction
Thank you for choosing 2-port USB2.0 KVM Switch with PS/2 keyboard and
mouse ports, 3 USB 2.0 downstream ports, 2 upstream USB 2.0 ports, and 3VGA
ports. Now, you can operate 2 computers with 1 monitor, 1 keyboard, and 1 mouse
and share the USB devices connected to the KVM.
1. Features
l Controls 2 PCs with one PS/2 or USB keyboard, one PS/2 or USB mouse, and
one monitor.
l Supports Windows 98/98SE/2000/Me/XP/VISTA, Linux Kernel 2.3 or later,
Mac OS9/OSX, Sun Micro Solaris 8 ( SUN BLADE 100)
l Supports 3 USB 2.0 downstream ports
l Supports 3 types of switching: hardware push button, hot keys on PS/2
keyboard, and On-Screen-Display (OSD) utility software (for Windows).
l OSD utility indicates:
i. Power status of connected computer(s).
ii. Active host computer.
l Supports VGAresolutions up to 2048x1536.
l Plug and Play. No driver is needed for PS/2 mouse and keyboard operation.
2. Package Contents
The product you purchased should contain the following equipment and
accessories:
l 2 port USB 2.0 KVM Switch
l CD with users manual, On-Screen-Display(OSD) utility
l 2 sets of USB+VGAcables

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II. Specifications
1. General
Model KC-221
Complies USB revision USB 1.0, 1.1,2.0
Working PC status LED 2
USB upstream port 2
VGA IN port 2
VGA OUT port 1
USB downstream port 3
PS/2 keyboard port 1
PS/2 mouse port 1
Power Jack DC-5V ( Optional for Power adaptor)
Reset button 1
Video resolution 2048 X 1536.
Hardware supported PC/Mac/Sun Micro
OS Supported
Windows 98/98SE/ME/2000/XP/Vista,
Mac OS9/OSX
Linux Kernel 2.3/above
Solaris 8/above
Active PC selection
By push button
By hotkey (only in PS/2 keyboard)
By OSD utility( Windows )

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PC 1
USB
PC 1
Monitor IN
PC 2
Monitor IN
PC 2
USB
2. Connectors
l 1 Mini-din for PS/2 keyboard
l 1 Mini-din for PS/2 mouse
l 3 USB type Adownstream connectors
l 2 USB type B upstream connectors
l DC-5V Power Jack
l Reset button
2 VGA input connectors (HDB15 Male), and one VGA output connector
(HDB15 Female).
Front View
Rear View
Push button
USB 2.0 USB 2.0 USB 2.0

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Side View
3. LED Indicators
3.1 Host Indicators (RED)
ON: When host PC is available and active.
Flash: Indicates which Host PC is selected but not power on
3.2HUB Switch with PC1/PC2 Indicators (GREEN)
Hub Switch with PC1 ON (Green): All USB downstream HUB
connect to PC1
Hub Switch with PC2 ON (Green): All USB downstream HUB
connect to PC2
3.3Auto-Switch/Auto-Scan Indicator (GREEN)
ON : Auto-Switch mode is active. The USB HUB will switch with PC
OFF: Auto-Switch mode is inactive. The USB HUB switch is
independent from PC and can be controlled by hot key.
Flash: Auto-Scan mode is active.
Reset Button
DC-5V Power Jack

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III. 2-port USB KVM Switch installation
1. System requirements:
· Computer: USB port, VGAport
· Operating System: Windows 98/98SE/2000/ME/XP/Vista, Mac
OS9/OSX, Linux Kernel 2.3 or Later, Solaris 8.
· VGA Cable: 1 VGA female-to-male cable per computer
· USB Cable: 1 USB cable with one Type-Aend and one Type-B end per
computer
· 2. Hardware installation:
a. Connect the USB cable’s Type-A end to the computer’s USB port, and the
cable’s Type-B end to the KVM’s PC1 USB upstream port.
b. Connect the VGAmale-to-Female cable between the VGAport on the
computer’s video card and the KVM’s PC1 monitor IN.
c. Repeat steps a thru b for the second computer, using the PC2 USB port and
monitor IN on the KVM.
PC1 HOST (RED)
PC2 HOST (RED)
HUB switch with PC1(Green)
HUB switch with PC2 ( Green )Auto-Switch/ Auto-Scan ( Green )

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PC 1
USB
PC 1
Monitor IN
PC 2
Monitor IN
PC 2
USB
d. Connect the monitor VGAcable to KVM’s monitor output port.
e. Connect PS/2 keyboard and mouse to the KVM’s PS/2 ports or USB
keyboard and mouse to the KVM’s USB downstream ports (Except on
Windows 98/SE).
f. For Window 98/SE users, please go to next chapter for installation.
g. Turn on the computers and make sure that the USB port is enabled and
working properly.
Push button
USB 2.0 USB 2.0 USB 2.0

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Window 98/SE installation :
For Window 98 and 98/SE system users, you will need a different step of
installation. After the hardware installed, please follow up these steps to
install the KVM switch :
Step 1 : Remove PS/2 mouse and Keyboard devices from USB KVM Switch
and plug them into PC
Step 2 : Turn ON your PC
Step 3 : Use USB KVM Switch push button to switch the screen to the target
PC with Windows 98/SE system.
Step 4 : Follow up the chapter 4.Driver installation and finish the driver
installation
Step 5 : Remove PS/2 mouse and keyboard from PC and plug into USB
KVM Switch

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4. Driver installation:
4.1 OS without driver installation
No driver is needed for 2-port USB KVM Switch for the following
operating systems.
a. Windows ME/2000/XP
b. MAC OS9/OSX
c. Linux Kernel 2.3 or above
d. Sun Micro Solaris 8 or above
4.2 Windows 98/98SE:
After you connect 2-port USB KVM Switch to your PC, Win 98 will
automatically detect the device and prompt for the driver installation.
Please proceed the installation of driver by following the instructions
from Step A-H. Please have your Windows 98 CD ready.
Step A
A. Click “Next”to Continue

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Step B
St ep C
B. Click “Next”to initiate
the search for the best
driver for your device.
C. Click “Next”to
start and search.

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Step D
Step E
D. Click “OK”to continue
E. Click “Next”to continue

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Step F
*Note: Your hidclass.sys file might be located in a different directory from the figure
above.
Step G
F. Please specify the
location of the Windows
source disk and Click “OK”
to continue.
You may use “Browse”to
locate the driver.
(Ref Figure F)
G. Click “OK”to continue

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Step H
H. Click “Finish”, Windows
has finished installing the
USB Human Interface
Device driver for PS/2
keyboard & mouse.

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5. On-Screen-Display(OSD) utility software
installation for windows
Place the enclosed CD into your CD-ROM drive. The AutoManual screen will
automatically pop up on your monitor. Click the “Install OSD utility”button to
proceed. If theAutoManual screen does not present, then please use the file
explorer to choose the CDROM driver, and execute the AutoManual.exe.
Step A
Step B
A. Click “Next”to
continue the installation
B. Click “Next”to
continue

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Step C
Step D
Step E
D. Click “Start”to continue
E. Click “Exit”
C. Click “Yes”to continue

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6. Using the OSD Program
6.1 Activating the OSD program
l From Start Menu \Program \KVM-OSD\KVM-OSD
l OSD will start

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6.2 Interpreting the OSD window
The OSD indicates the status of the connections, host PC and the USB device.
There are four different status:
A. “No PC Found”indicates no PCs are connected to the Pocket KVM or that
connected PCs are off.
B. “PC 1 On”indicates the first port has a PC connected to it, the PC is on and
the active host. The second port either has NO PC connected to it, or the PC is
connected, but not on.
Port connection status and
active host
Hide Button
Close Button
Host PC status

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C. “PC 2 On”indicates the second port has a PC connected to it, the PC is on
and the active host. The first port either has NO PC connected to it, or the PC
is connected, but not on.
D. Both ports have PCs connected and on. The red letter and larger numeral
indicates the second port is the active host. The green letter and smaller
numeral indicates that the first port is NOT the active host, but is available for
connection.
6.3 Switching the active host using the OSD program
Using the mouse, simply click on the button of the port that you want as the
active host. The program will automatically switch the active host and the
numbers on the button will change accordingly.

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6.4 Hiding and closing the OSD program
l When you click the “Hide”button, OSD program window will hide in
Taskbar.
l When you click the “Close”button, OSD program will exit.
l If OSD program is hidden in Taskbar, you can right click on the taskbar
icon to show or close the program.
IV. Operate the 2-port USB KVM Switch
1. Manual Switch by push button
1.1 HOST selection
You can switch to the next available active USB host connection by pushing
the switch button on the 2-port USB KVM Switch
1.2 Activate Auto Switch Function