KTI KCF-121 User manual

2-Port / 4-Port
KVM SWITCH
User’s Manual
Version 2.0 / 060731

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Model Specifications KCF-121 KCB-121 KCF-121A KCB-121A
2-Port model √√√√
Audio model
√√
HDB-15
(VGA+USB+2 PS/2) 2 2 2 2
PC Ports
Audio (mic/speaker)
22
PS/2 Keyboard √√√√
PS/2 mouse √√√√
Video HDB-15 √√√√
USB Keyboard √√
USB mouse √√
Console
Audio (mic/speaker)
√√
KCB-121
KCB-121A
KCF-121
KCF-121A

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Model Specifications KCF-141 KCB-141 KCF-141A KCB-141A
4-Port model √√√√
Audio model
√√
HDB-15
(VGA+USB+2 PS/2) 4 4 4 4
PC Ports
Audio (mic/speaker)
44
PS/2 Keyboard √√√√
PS/2 mouse √√√√
Video HDB-15 √√√√
USB Keyboard √√
USB mouse √√
Console
Audio (mic/speaker)
√√
KCB-141
KCB-141A
KCF-141
KCF-141A

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1. Introduction
The 2-Port/4-Port KVM Switch are high quality and durable systems that will allow
you to control 2/4 host computers (or servers) by connecting to PS/2 or USB
connectors from one console (PS/2 / USB Mouse, PS/2 / USB Keyboard, and
Monitor).
1.1 Features
 Controls 2 / 4 computers from a single console (Keyboard/Mouse) over either
PS/2 or USB connections
 The PC ports support Windows, Linux, Mac OS9/OSX, Sun Microsystems.
 Keyboard emulation on each un-selected PC to allow it to boot normally
without a keyboard error
 Hot-swap support. All devices connected to the KVM switch can be added or
removed at any time without shutting the unit down.
 Support 2 types of switching: (1) Hardware Push Button control, (2) Hot key
command control from PS/2 or USB keyboard.
 ProvideAuto-scan function to alternate video between computers in a preset
interval.
 Provide LED display for PC status monitoring.
 Supports VGAresolutions up to 2048 x 1536.
 Provide Beeper during switching enabled.
 Self powered through PS/2 and/or USB connection
 Fully compliant with the USB 1.1/ 2.0 specification
1.2 Package Contents
The product you purchased should contain the following equipment and
accessories:
 One 2-Port /4-Port KVM Switch unit
 2/4 combo 4-in-1 cables
 2/4 sets of speaker+microphone cables. ( with Audio models )
 Product CD (with operation manual)

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2. Specifications
2.1 General
Specification
Number Of Computers Controlled 2 / 4
PC Port Selection Method Push Button and Hot-Key (PS/2 or USB Keyboard)
LEDs Red for PC Selection
Green for PC On-Line ready
Video 2 / 4 x HDB -15 female
( VGA+USB+PS/2 signal combined )
Speaker 2 / 4 audio female jacket (audio model)
PC Connectors
Microphone 2 / 4 audio female jacket (audio model)
Keyboard KCF models - PS/2 mini-DIN + USB A type
KCB models – PS/2 mini-DIN
Mouse KCF models - PS/2 mini-DIN + USB A type
KCB models – PS/2 mini-DIN
Video 1 x HDB -15 female
Speaker 1 x audio female jacket (audio model)
Console Ports
Microphone 1 x audio female jacket (audio model)
Auto-Scan Interval 5 ~ 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 Adapter
Cable Length 6 feet (1.80 Meter)
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 : 420~465 g
4-Port : 620~650 g
Housing material Metal
Operating Temperature 32~ 122oF (0~ 50oC )
Humidity 0%~80%RH

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2.2 Front Panel and Rear Panel
The following figure illustrated 4-Port model with Audio and PS2 & USB console as
example:
Figure 2-1
Front Panel & Rear Panel

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3. System Requirements
Console
A VGA, SVGA, Multisync monitor capable of the highest resolution
PS/2 and/or USB Keyboard/Mouse
Computers or Servers (PCs)
The following equipment must be equipped with each computer or server.
- A VGA, SVGA or Multisync card
- TypeA USB port or PS/2 6 pin mini-DIN for Keyboard and Mouse
Cables
The KVM Switch must be used with specific combo 4-in-1 cables. To purchase
more cable sets, contact your dealer.
Figure 3-1 Combo 4-in-1 cable

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4. Installation
LED Indicators:
Name Color Function
Selected Red The PC port is selected.
On-Line Green An active PC is connected.
Reset Switch :
Press this push button switch to reset the KVM device. To push the switch, use a
ball-point pen or a small stick.
4.1 Installation
Precaution:
1. When connecting Windows 98 systems, it is suggested that the PC must be
plugged to PS/2 ports, because Windows 98 does not support installation at
first time through USB HID installation driver.
2. Some old PCs can support USB ports during booting, but are required to open
BIOS USB setting first.
3. The KVM switch does not support the USB keyboard which has built-in USB
HUB.
Console connections:
Plug USB or PS/2 keyboard, USB or PS/2 mouse arbitrarily and VGA video into
the Console ports located on the front panel. A combination of USB mouse and
PS/2 keyboard or a combination of PS/2 mouse and USB keyboard are all
supported by the KVM Switch unit.
System connections:
Use KVM combo 4-in-1 cable (as shown in Figure 3-1) to connect an available
KVM’s PC port to a computer’s video and USB or PS/2 ports.
Tune monitor display quality:
If you are using LCD monitor connected to the KVM switch with Audio and feel the
display quality is not comfortable to you, you can apply monitor’s Auto-adjusting
function to tune gain for better display quality just at the first time. After then, the
display quality will be remained better condition continuously.

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This KVM Switch with specific combo cable provides three connecting methods.
1. Plug Speaker, Microphone, USB, PS/2 ( keyboard/mouse) ports and VGA into
PCs at same time, recommended in priority. ( Figure 4-1 ).
Figure 4-1
Speaker, Microphone,PS/2 & USB and VGA connected at same time
2. Plug only Speaker, Microphone, PS/2 (keyboard / mouse) ports and VGA into
PCs. ( Figure 4-2 )
Figure 4-2
Speaker, Microphone, PS/2 and VGA connected

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3. Plug only Speaker, Microphone, USB and VGA into PCs. ( Figure 4-3 ).
Figure 4-3
Speaker, Microphone, USB and VGA connected
5. Operations
The 2/4-Port KVM Switch has the ability to switch the keyboard, video, mouse,
audio, microphone simultaneously.
Note: When using the two-step Hot Key sequences, the keys must be pressed
within 5 seconds; otherwise the Hot Key action is terminated.
5.1 Push Button on front panel
Figure 5-1 Push Button for PC Port Selection
Push the button directly to select the connected PC.