2 port CPU SWITCH
USER'S MANUAL
Read this guide thoroughly and follow the installation and operation
procedures carefully to prevent any damage to the unit and/or any
devices that connect to it.
This package contains:
• 1 Master View CS-142 KVM Switch
• 2 KVM Custom Cable Sets
• 1 PS/2-to-Serial Mouse Adapter
• 1 PS/2-to-PC/AT Keyboard Adapter
• 1 User Manual
©Copyright 1999 ATEN® International Co., Ltd.
Manual Part NO. PAPE -1133-400
Printed in Taiwan 10/1999
All brand names and trademarks are the registered property of their respective owners.
Table of Contents
Overview
Features
Hardware Requirements
Console
PC
Cables
Introduction
Installation
Operation
Manual Port Selection
Hot Key Port Selection
Appendix
Troubleshooting
Specifications
Radio & TV Interference Statement
Limited Warranty
1
Overview
The Master View CS-142 KVM (Keyboard, Video, Mouse),
Switch is a control unit that allows access to two computers
from a single console (keyboard, mouse, and monitor). Before
the development of the Master View, the only way to control
multiple computer configurations from a single console was
through a complex and costly network system. Now, with the
Master View CS-142, you can easily access two computers in a
cost effective manner.
Setup is fast and easy; plugging cables into their appropriate
ports is all that is entailed. There is no software to configure, so
there is no need to get involved in complex software
installation routines or be concerned with incompatibility
problems. Since the Master View CS-142 intercepts keyboard
input directly, it works on any hardware platform and with all
operating systems.
The Master View CS-142 provides two convenient methods to
access the computers connected to the system: using the push
button Selection switch located on the unit's top panel; and
entering Hot Key combinations from the keyboard.
There is no better way to save time and money than with a
Master View CS-142 installation. By allowing a single console
to manage both of the attached PCs, the Master View CS-142
eliminates the expense of purchasing a separate keyboard,
monitor, and mouse for each PC. Additionally, it saves all the
extra space they would take up, and eliminates the
inconvenience and wasted effort involved in constantly having
to move from one PC to the other.
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Features
• Easy to Install - No Software Required - Connecting
Cables to the PCs Is All It Takes
• Easy to Operate - PC Selection Via Push Button Switch or
Hot Keys - Auto Scan Function to Monitor PC Operation
• Compatible With All Operating Platforms
• Hot Pluggable
• Caps Lock, Num Lock, and Scroll Lock States are Saved
and Restored When Switching
• LED Display For Easy Status Monitoring
• Mouse Protocol Conversion - Control both PC/AT and
PS/2 PCs With One PS/2 Mouse
• Superior Video Quality - Ultra High 180 MHz Bandwidth
Supports Up To 1920 x 1140 Resolution
• Saves Time, Space, Power, and Equipment Costs
• Non-powered
Hardware Requirements
Console
• One VGA, SVGA, or Multisync monitor capable of the
highest resolution that you will be using on any PC in the
installation
• One PS/2 Mouse
• One PS/2 Style Keyboard
PC
The following equipment must be installed on each PC that is
to be connected to the system:
• A VGA, SVGA or Multisync card.
• Either a 6-pin mini-DIN (PS/2 style), or DB-9 (standard
serial), mouse port.*
• Either a 6-pin mini-DIN (PS/2 Style) keyboard port with
+5V DC on pin 4 and Ground on pin 3, or a 5-pin DIN (AT
Style) keyboard port with +5V DC on pin 5 and ground
on pin 4.*
* See the note under Cables in the next section.
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Cables
Although it is possible to use standard extender cables to
connect the PCs to the Master View CS-142, for optimum
signal integrity and to simplify the layout, we strongly
recommend that you use the high quality KVM Custom
Cables that are provided as part of the package.
Note: The keyboard and mouse cables have PS/2 style
connectors at each end:
• If your PC uses a standard AT style keyboard
socket, you will need to use the PS/2-to-AT
keyboard adapter (Part No. 2A-106) provided with
this unit in order to plug the cable into the PC's
keyboard port.
• If your PC uses standard serial connectors for the
mouse ports you will need to use a PS/2-to-Serial
adapter (Part No. 2A-105, provided with this
package), in order to plug the cable into the PC's
mouse port.
• Only one keyboard and one mouse adapter are
provided with this package. If both of your computers
require the use of keyboard and mouse adapters, you
will have to purchase the additional adapters
separately. Any standard keyboard adapter will work,
but the mouse adapter requires the use of our Part No.
2A-105.
• Because of the wiring and pin assignments, you
cannot use a Serial-to-PS/2 adapter at the end that
plugs into the CS-142. Therefore, attempting to use a
standard serial extender cable with adapters at both
ends will fail.
Introduction
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3
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1. CPU Port 1 Connector Ports
The extender cables that connect back to the video,
keyboard and mouse ports on the computer you are
designating as Computer 1 plug in here. Each port is
identified by an appropriate icon.
2. Port Selection Button
Pressing the Selection Button switches access back and
forth between the PCs. The Selected LED lights to
indicate which port is the active one.
3. Selected LEDs:
Lights to indicate the currently selected port. Depending
on the port's status, the LED may flash according to a
specific pattern (see the table in the Appendix for
details).
4. CPU Port 2 Connector Ports
The extender cables that connect back to the mouse,
keyboard, and video ports on the computer you are
designating as Computer 2 plug in here. Each port is
identified by an appropriate icon.
5. Console Connector Ports
Your mouse, keyboard and monitor cables plug in
here. Each port is identified by an appropriate icon.
Installation
Before you begin, make sure that power to all the devices you
will be connecting up have been turned off.
1. Plug the monitor, keyboard, and mouse into the Console
port connectors of the Master View CS-142 unit.
2. Use the extender cables (as described in the Hardware
Requirements section), to connect the monitor, keyboard
and mouse ports of the PCs to the Master View CS-142
CPU Ports, as shown in the diagram below.
Note: If your PCs use AT style connectors for the
keyboard and mouse ports, refer back to the note
in the Cables Section on p. 4.
3. Turn on the power to the connected PCs.
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Note: The CS-142's Power On default is to link to the first
computer you turn on.
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Operation
Controlling both PCs in your Master View CS-142 installation
from a single console could not be easier. Two port selection
methods that provide instant access to either PC are available:
• Manual Port Selection
• Hot Key Port Selection
Manual Port Selection
With Manual Port Selection you simply press the Port
Selection button on the Master View's top panel to switch back
and forth between computers. The Selected LED on the top
panel lights to indicate which port is active.
Hot Key Port Selection
Hot Key navigation allows you to select the active PC directly
from the keyboard, instead of having to manually select it by
pressing the Port Selection button. The Master View CS-142
provides several Hot Key navigation features:
• Selecting the Active Port
• Auto Scan Mode
Selecting the Active Port:
You can toggle between the two PCs by pressing and releasing
the left or right Ctrl key twice [Ctrl]+[Ctrl].
Note: The combination must be on the same side (Left
[Ctrl]+[Ctrl], or Right [Ctrl]+[Ctrl].
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5
Auto Scan Mode:
The Master View CS-142's Auto Scan feature automatically
switches between the two PCs at regular 5 seconds intervals so
that you can monitor their activity without having to take the
trouble of switching yourself. To invoke Auto Scan Mode,
press and release the left Shift key, then press and release the
right Shift key (Left [Shift]+Right [Shift]).
Once scanning begins, it continues until you press the
[Spacebar] to exit Auto Scan Mode. The port that was currently
active at the time scanning stopped remains active.
Note: While Auto Scan Mode is in effect, none of the other
keyboard keys will function. You must exit Auto
Scan Mode by pressing the [Spacebar] in order to
use the console for anything else.
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Appendix
SELECTED LED Display:
Activity Meaning
Off Port is not selected.
On (Steady) Port is connected to an active PC.
Flashing (On and Off equal) Port is connected to an active PC and is being
accessed in Auto Scan mode.
Troubleshooting
Note: If you are experiencing problems, first make sure
that there are no problems with the cables, and that
they are all properly connected.
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7
Symptom
Keyboard Not
Responding*
Mouse Not
Responding**
Video Problems
Cause
Keyboard needs to be
reset
Master View needs to
be reset
Master View is in Auto
Scan Mode
Mouse needs to be
reset
Master View needs to
be reset
Mouse in unsupported
mode
Resolution and/or
Bandwidth set too high
Cable quality not good
enough
* The Master View CS-142 is designed to work with AT and
PS/2 keyboards. Older XT (84 key) and some older AT
keyboards (those with the function keys on the side), will
not work.
** Some Notebook computers, notably the IBM Thinkpad
and Toshiba Tecra, have trouble working with the
Master View CS-142 when their mouse and keyboard
ports are used simultaneously. To avoid this problem,
only connect the mouse port or the keyboard port to the
Master View unit. If you connect the mouse port, you
will need to use the notebook's keyboard when you
switch to make the notebook the active computer.
Action
Unplug the keyboard from the Console
Keyboard Port, then plug it back in.
Turn off the PCs, wait five seconds;
then turn the PCs on.
Press the [Spacebar] to exit Auto Scan
Mode.
Unplug the mouse from the Console
Keyboard Port, then plug it back in.
Turn off the PCs. Wait five seconds;
then turn the PCs on.
The Master View CS-142 does not
support some combo mice (with extra
buttons and wheels) which can be used
as either a PS/2 or serial mouse when
they are in serial mode - switch the
mouse to PS/2 mode if you wish to use
the extra buttons/wheels.
If the problem persists, change the
mouse and/or mouse driver. Try a
regular mouse and a generic mouse
driver (like the ones that come with the
operating system).
The Master View CS-142 supports
VGA, SVGA, Multisync, and XGA
(interlaced), with resolutions of up to
1920x1440 Hz. The maximum
bandwidth is 180 MHz.
We strongly recommend that you use
the high quality cables provided with
this package. Using high quality cables
should eliminate possible video
problems.
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Specifications
Power Consumption DC 9V 80mA (max)
PC Connections 2
Port Selection Push Button Switch; Hot Keys
LEDs Selected 2
Connectors Keyboard 1 x 6 pin mini-DIN female (PS/2 style) - Console
2 x 6 pin mini-DIN female (PS/2 style) - CPU Ports
Mouse 1 x 6 pin mini-DIN female (PS/2 style) - Console
2 x 6 pin mini-DIN female (PS/2 style) - CPU Ports
Video 1 x HDB-15 female (std. VGA/SVGA) - Console
2 x HDB-15 male (std. VGA/SVGA) - CPU Ports
Scan Interval 5 Seconds
Operating Temperature 5˚ ~ 40˚ C
Storage Temperature -20˚ ~ 60˚ C
Humidity 0 ~ 80% RH, Noncondensing
Enclosure Plastic
Weight 190 g
Dimensions (L x W x H) 130x100x35 mm
Radio & TV Interference Statement
WARNING!!! This equipment generates, uses and can radiate
radio frequency energy and, if not installed and
used in accordance with the instruction manual, may cause
interference to radio communications. This equipment has been
tested and found to comply with the limits for a Class B
computing device pursuant to Subpart J of Part 15 of FCC
Rules, which are designed to provide reasonable protection
against such interference when operated in a commercial
environment. Operation of this equipment in a residential area
is likely to cause interference, in which case the user at his own
expense will be required to take whatever measures may be
required to correct the interference.
Limited Warranty
IN NO EVENT SHALL THE DIRECT VENDOR'S
LIABILITY FOR DIRECT, INDIRECT, SPECIAL,
INCIDENTAL OR CONSEQUENTIAL DAMAGES
RESULTING FROM THE USE OF THE PRODUCT, DISK
OR ITS DOCUMENTATION EXCEED THE PRICE PAID
FOR THE PRODUCT.
The direct vendor makes no warranty or representation,
expressed, implied, or statutory with respect to the contents
or use of this documentation, and especially disclaims its
quality, performance, merchantability, or fitness for any
particular purpose.
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The direct vendor also reserves the right to revise or update the
device or documentation without obligation to
notify any individual or entity of such revisions, or updates.
For further inquires please contact your direct vendor.
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