
1. Introduction
Thank you for your purchasing our KVM Switch! You now have a high quality, durable
system that will enable you to control 2/4 Host computers and/or servers by using PS/2
and/or USB Connectors from one console (PS/2 or USB Mouse, PS/2 or USB Keyboard
and one Monitor) with or without Audio – depending on choosen KVM Switch.
Combo KVMs: DC-11101-1 (2-Port), DC-12101-1 (4-Port),
DC-11301-1 (2-Port, Audio), DC-12301-1 (4-Port, Audio)
USB-PS/2 Combo KVMs: DC-11202-1 (2-Port), DC-12202-1 (4-Port),
DC-11401-1 (2-Port, Audio), DC-12401-1 (4-Port, Audio)
1.1 Features
1. Console your Keyboard/Mouse via either way of PS/2 and/or USB arbitrarily.
2. Complex connections with PCs via either way of PS/2 and/or USB arbitrarily.
3. Controls 2 / 4 computers from a single console (Keyboard/Mouse) over PS/2
and/or USB connections.
4. Supports Windows, Linux, Mac OS9/OSX, Sun Microsystems.
5. Emulates a keyboard on each PC to allow your computers to boot normally without a keyboard error.
6. Supports hot-swap. All devices connected to the KVM can be added or removed
at any time, without shutting the unit down.
7. Supports 2 types of switching: (1) Hardware Push Button, (2) Hot-Keys on PS/2
and/or USB of keyboard arbitrarily.
8. Supports Auto-Scan function to alternate video between computers in preset
intervals.
9. Supports LED display for PC status monitoring.
10. Supports VGA resolutions up to 2048 x 1536 @ 85HZ.
11. Supports Beeper during switching enabled.
12. Self powered through PS/2 and/or USB connection.
13. Fully compliant with the USB 1.1/ 2.0 specification.
14. Audio support IN / OUT (only audio version)
1.2 Package Contents
The product you purchased should contain the following equipment and accessories:
1. 2-Port or 4-Port KVM Switch with
PS/2 and/or USB console
ports
2.
2 pcs. KVM cable sets, 1,8m
3.
User Manual

2. Specifications
2.1 General
Specification
Number Of Computers Controlled 2 / 4
Selection Method
Push Button and Hot-Key (PS/2 and/or USB Keyboard)
LEDs Red for PC Selection
Green for PC On-Line ready
Video 2 / 4 x HDB -15 female
( USB & PS/2 signal combined )
Speaker 2 / 4 audio female jacket (only audio version)
Microphone 2 / 4 audio female jacket (only audio version)
PC Connectors
Keyboard 1 x 6 pin PS/2 mini-DIN female
1 x USB A type female (only USB –PS/2 version)
Mouse 1 x 6 pin PS/2 mini-DIN female
1 x USB A type female (only USB –PS/2 version)
Video 1 x HDB -15 female
Speaker 1 x audio female jacket (only audio version)
Console Ports
Microphone 1 x audio female jacket (only audio version)
Auto-Scan Interval From 5 to 250 Seconds
DDC, DDC2 monitor Yes (Max. Resolution: 2048x1536) @ 85Hz
Hot Swappable Yes
Operating systems supported Windows 98SE/ME/2000/XP/2003 Server, Linux
Mac OS9/OSX and Sun Micro System
Device driver No Need
Power
By PS/2 and/or USB or External Power Adaptor (Optional)
Dimensions (L X W X H) 2-Port : 14.0 x 8.5 x 4.5 cm (5.5 x 3.3 x 1.7 inches)
4-Port : 21.5 x 8.8 x 4.5 cm (8.5 x 3.4 x 1.7 inches)
Unit Weight 2-Port : ~ 450 g
4-Port : ~ 650 g
Housing material Metal
Operating Temperature
32~ 122°F (0~ 50°C )
Humidity 0%~80%RH

3. System Requirements
Console
A VGA, SVGA, Multisync monitor capable of the highest resolution.
PS/2 and/or USB Keyboard/Mouse
Computer or Server
The following equipment must be equipped with each computer or server.
- A VGA, SVGA or Multisync card.
- Type A USB port and/or PS/2 6 pin mini-DIN for Keyboard and Mouse.
Cables
The KVM Switch with USB and PS2 console must be used specific custom 4-in-1 cables.
To purchase the specific cable sets, please contact your dealer.
4. Installation
LED Indicators:
Selected
: RED LED indicates that the KVM Switch is selected to the corresponding PC.
On-Line :
GREEN LED indicates that the KVM Switch is ready to the corresponding PC.
AutoScan
: GREEN LED flash indicates that the KVM Switch is in auto-scan mode.
Reset Switch :
Press this switch for a system reset. This switch must be pushed with a thin object,
for example, such as the end of a paper clip, or a ball point pen.

4.1 Single installation
Precaution:
1. For users who would like to connect PC over PS/2 interface:
Please finish the connection to PC over PS/2 port before turning on PC.
PC will not detect PS/2 devices, if PS/2 is not connected while booting. It will
cause a mouse and keyboard error with no access to your computer.
2. When connecting a Windows 98 system , it is suggested that the PC must be
always plugged to PS/2 ports, because Windows 98 does not support
installation at first time through USB HID installation driver.
3. Some old PCs can support USB keyboard during booting, but are required to
open BIOS USB setting first.
4. For connecting Windows 2000, Window 2003, Window XP or later, in case of
PC is set as “ need to be login with the password” and connects to KVM over
USB interface only, it is suggested that complete the installation of the KVM
switch before logging out the Windows system. In these case, the host is able
to recognize the USB HID device and install the driver and makes the KVM
switch works properly in the next booting.
5. The KVM switch is powered by either PS/2 keyboard port or USB port. For
Notebook or Laptop, power might not be strong enough to support KVM switch .
If KVM switch cannot work properly with your Notebook, it is suggested that
using a DC switching power adaptor with 5V/300mA~1A to the KVM power
jacket. For polarity, see following:
6. For USB Keyboard with built-in USB HUB, please note that the KVM
switch does not support the built-in USB HUB on USB keyboard.
Console connecting:
Plug either your USB keyboard, mouse and/or PS/2 keyboard, mouse arbitrarily
and VGA video into the Console ports located on the KVM Switch’s front panel.
( Note: No matter what you plugged even thought USB mouse with PS/2 keyboard
or PS/2 mouse with USB keyboard are available working to the KVM Switch unit.)