ATEN CS-104 User manual

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Introduction 3
Specifications 3
Hardware Requirements 3
Hardware Installation 4
One Stage Installation 4
Two Stage Installation 4
Three Stage Installation 5
Step-by-Step Hardware Installation 6
Operation of the CS-104 7
Front Panel Selection 7
Keyboard Selection 7
Auto-Scan Mode 8
Previous/Next Mode 8
Direct Port Selection 8
LED Display 9
DIP Switch Settings 10
Foot Switch (Optional) 10
Troubleshooting 11
Preventing Radio & TV Interference 12
Limited Warranty 12
Packaging Checklist:
• (1) Master View CPU Switch [CS-104]
• (1) Power Adapter [DC 9V 250mA (minimum)]
• (1) CPU Switch User’s Manual [This Book]
©Copyright 1996 ATEN® International Co., Ltd.
Manual Part No. PAPE-0126-200

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Master View is a controller for that will allow one user to access multiple computers. Before, the costly
network was the only solution for this application. Now, the Master View provides the easiest and the most
cost-effective way of accessing multiple computers.
With the powerful features of Master View, anyone is capable of operating or testing many computers
with one of each, a monitor, a keyboard and a mouse. Switching from one computer to another is
accomplished quickly and easily, either by using Hot Keys or pressing a button on the Master View. No
additional programs to install and no problems with compatability, because the Master View intercepts the
Hot Keys directly from the keyboard.
One Master View unit will control up to four computers. When used together, or cascaded, the Master
View can control up to 64 computers. A powerful auto-scan feature scans all operational computers one at a
time and will stop upon the users request. Master View is ideal for Server, Control Room, Testing, etc.
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• Supports PS/2 Keyboard or AT Keyboard.
• Supports PS/2 Mouse or Serial Mouse.
• Supports VGA, SVGA, and Multisync Monitors.
• Simple keystrokes or push button selection of active PC.
• Buzzer Sound for Switching Confirmation.
• Cascade to a depth of three units.
• Auto-Scan and Manual Selection.
• Keyboard Caps Lock, Num Lock and Scroll Lock states automaticallysaved and restored when switching
between computers.
• Scan mode automatically switches through active computers; this scan rate is controlled by DIP switch
selections.
• Saves space, equipment, and power costs.
• Easy Hot Key control is compatible with normal keyboard operation.
Function Specification
Power Conssumption DC 9V 250 mA (max.)
Number of PC’s accessed 4
Active PC selected by Keyboard/Button
LED 1 Ready LED, 4 Port Status LEDs
Scan Interval 3, 10, 20, and 40 Seconds (Selectable)
Keyboard Connector 5-pin DIN (AT) and 6-pin mini-DIN (PS/2)
Serial Mouse Connector 9-pin D Type Male/Female
PS/2 Mouse Connector 6-pin mini-DIN Female
Monitor Connector 15-pin D Type Female/Male
Enclosure Metal
Weight 2650g
Dimensions (L x W x H) 254 x 180 x 82 (mm)
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You will need to have the following:
To connect to a Monitor:
• A VGA, SVGA, or Multisync monitor card installed in each PC.
• One VGA, SVGA or Multisync Monitor
To connect a Mouse:
• DB-9 serial port or 6-pin mini-DIN PS/2 bus mouse port in each PC.
• One PS/2 mouse and/or a DB-9 Serial Mouse
To connect a Keyboard:
• 5-pin DIN AT keyboard port with +5V DC on pin 5 and ground on pin 4, or a 6-pin mini-DIN PS/2 keyboard
port with +5V DC on pin 4 and ground on pin 3.
• One PS/2 style Keyboard or one AT style Keyboard.
The CS-104 is cascadable up to a depth of 3 stages which is selected by DIP switch settings.
One Stage:
In a one-stage system, a single CS-104 can control up to four computers. The DIP switch #4 is set to the
ON position. Connect the monitor output, mouse port, and the keyboard port of a computer to one of the
CS-104’s available PC port groups with the appropriate cables. The 5-pin DIN is for an AT style PC key
board and the 6-pin mini-DIN is for a PS/2 style keyboard. You can use either port for each computer.
Fig. 1: A One Stage installation of the CS-104
Keyboard
Video
Mouse

Two Stage:
In a two stage system the CS-104 can either control PC’s directly or it can control other CS-104’s
(second stage units) or a combination of both. In this configuration the maximum number of computers
that can be in the system is 16. The DIP switch #4 on the first stage unit (The CS-104 directly connected
to the monitor, mouse, and keyboard) is placed in the ON position. All other CS-104 units have DIP
switch #4 in the OFF position. Computers may now be connected either to the first stage CS-104 or the
second stage units. The 5-pin DIN is for an AT style PC keyboard and the 6-pin mini-DIN is for a PS/2
style keyboard. You can use either port for each computer.
Keyboard
Video
Mouse
Second Stage CS-104
• Use AT style 5-pin DIN Keyboard connector
• Set DIP Switch #4 to the OFF Position
Fig. 2: A Two Stage installation of the CS-104

Three Stages:
Similar to a Two-Stage configuration, more computers can be controlled by adding another layer of CS-
104 units. In a three-stage system the maximum number of computers that can be controlled is increased
to 64. The DIP switch #4 on the first stage unit (The CS-104 directly connected to the monitor, mouse,
and keyboard) is placed in the ON position. All other CS-104 units have DIP switch #4 in the OFF posi-
tion. Computers may now be connected to the first stage CS-104, the second stage units, or the thirrd stage
units. The 5-pin DIN is for an AT style PC keyboard and the 6-pin mini-DIN is for a PS/2 style key
board. You can use either port for each computer. NOTE: To connect the keyboard ports of the second or
Keyboard
Video
Mouse
Second Stage CS-104
• Use AT style 5-pin DIN Keyboard connector
• Set DIP Switch #4 to the OFF Position
Third Stage CS-104
• Use AT style 5-pin DIN
Keyboard connector
• Set DIP Switch #4 to the
Fig. 3: A Three Stage installation of the CS-104

Setting up one CS-104
The connection of the Keyboard, Video and the Mouse is accomplished by using the same cables that you would
use to connect them to a PC.
1. Connecting the mouse:
• If you are using a PS/2 style mouse connect the 6-pin mini-DIN male plug of the PS/2 mouse to the female
PS/2 port located in the CONSOLE section on the back of the CS-104.
• If you are using a Serial mouse you must connect the DB-9 Serial connector of the mouse to the DB-9 Serial
Port of the CS-104.
• NOTE: If the computers attaced to the CPU ports have mixed mouse types, ie. Serial and PS/2, you must
connect BOTH mice to the console port.
2. Connecting the keyboard:
• If your keyboard uses a 5-pin DIN (AT style) connector, plug the male 5-pin DIN connector into the female
5-pin DIN socket in the CONSOLE section of the CS-104.
OR
• If your keyboard uses a 6-pin mini-DIN (PS/2 style) connector, plug the male 6-pin mini-DIN connector into
the 6-pin mini-DIN socket in the CONSOLE section of the CS-104
3. Connecting the monitor:
• Using the cable attached to your monitor, plug the male high density DB-15 (standard VGA, SVGA, or
Multisync) connector into the female high density DB-15 connector in the CONSOLE section of the CS-104.
4. Connecting a computer:
• Connect a VGA compatible monitor extension cable from the video card of the computer to the video
connector in one of the PC sections of the CS-104
• Connect a straight-through keyboard from the keyboard port of your computer to the keyboard port of the
same PC section where you connected the video.
• Connect a straight-through PS/2 or Serial mouse extension cable from the mouse connection of your PC to
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You may access any computer by pressing the front panel SELECT BUTTON or through keyboard com-
mands. After selecting the computer you wish to control the CS-104 directs the keyboard control, mouse
control, and video image of the computer you have selected as if the computer were right next to you.
Selection from the front panel button:
To select a computer connecting to a CS-104 unit, you simply press the front panel SELECT BUTTON
of that unit several times, until the computer that you wish to select is indicated bythe corresponding
indicator LED being turned on.
For a computer in the second stage of a Two-Stage system you will have to make your selection on the
CS-104 unit directly connected to the PC you wish to use. Similarly in a Three-Stage system you will
need to make your selection on the CS-104 unit directly connected to the computer in the third stage.
Selection from the keyboard:
As shown below, first pressing the [Alt], [Ctrl], and [Shift] keys to enable the Hot Key commands, You

then enter the command keystrokes and complete the command by hitting the [Enter] key.
To start the Auto-Scan mode: (This mode scans all connected computers that are in a power on state,
one- by-one, from the first computer in the first stage, to the last computer in the last stage)
[Alt] [Ctrl] [Shift] + [0] + [Enter]
To stop Auto-Scan mode:
[Space]
To start the Previous/Next mode: (This mode selects from all connected computers that are in a power on
state, one-by-one, from the first computer in the first stage, to the last computer in the last stage)
[Alt] [Ctrl] [Shift] + [9] + [Enter]
To select the previous port:
Left [Shift]
To select the next port:
right [Shift]
To stop the Previous/Next mode:
[Space]
To select a first-stage port directly:
[Alt] [Ctrl] [Shift] + # + [Enter]
(#is the number of the first-stage port)
To select a second-stage port directly:
[Alt] [Ctrl] [Shift] +# + # + [Enter]
( The 1st #selects the number of a first-stage port)
( The 2nd #selects the number of a second-stage port)
To select a third-stage port directly:
[Alt] [Ctrl] [Shift] +# + # + #+ [Enter]
( The 1st #selects the number of a first-stage port)
( The 2nd #selects the number of a second-stage port)
( The 3rd # selects the number of a third-stage port)
NOTE: # is a numerical digit between [1] and [4]

Actions Taken by the CS-104
MODE Result for correct Hot Key Incorrect Hot Keys
Scan • Filters out Hot Keys and beeps once
• Scans powered-on computers one-by-one and
flashes corresponding LED
• Scan rate is set by the DIP switches of the
first-stage CS-104
• [Space] stops this mode
Displays incorrect keystrokes
Previous/Next • Filters out Hot Keys and beeps once
• The right [Shift] key selects the next higher
numbered computer
• The left [Shift] selects the next lower num-
bered computer
• [Space] stops this mode
Displays incorrect keystrokes
Direct • Filters out Hot Keys and beeps once for a
ready port; otherwise, beeps twice.
• Switches to the selected port
Displays incorrect keystrokes
There is one MANUAL LED, and four PORT STATUS LEDs on the front panel. The functions of
these LEDs are as follows:
MANUAL LED : This LED turns on when the CS-104 is in MANUAL mode.
PORT STATUS LED: These four (4) LEDs are used to indicate the various status conditions for any
given port.
1. If a port is not selected, its corresponding PORT STATUS LED will be off.
2. If a port is selected that is connected to another CS-104, its corresponding PORT STATUS LED
will flash:
3. If a port is selected that is connected to a “power-on” computer, its corresponding PORT
STATUS LED will remain lit.
4. If a port is selected that is connected to a “power-on” computer while in Previous/Next mode, its
corresponding PORT STATUS LED will flash:
5. If a port is selected that is connected to a “power-on” computer while in the Auto-Scan mode, its
corresponding PORT STATUS LED will flash:
LED On LED Off
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The Following DIP Switch settings are for the first-stage CS-104 ONLY
The DIP Switch settings for the second and third-stage CS104s are all switches off.
DIP Switch Number Function
1 2 3 4 Scan Time
ON ON X ON 3 Seconds
OFF ON X ON 10 Seconds
ON OFF X ON 20 Seconds
OFF OFF X ON 40 Seconds
FUNCTION
The Foot Switch is an extension of the front panel Push Button, both have the same function. Each time the
Foot Switch is stepped on, a different computer is selected.
Foot Switch part # 2X-001 (Large)
2X-002 (Small)
CONNECTION
The Foot Switch is connected to the CS-104 through a RJ-11 phone jack which is located on one side of the unit.
If you plan to install an ON/OFF switch to
work with the Push Button, check the
diagram to the right to ensure correct switch
connection.
1 2 3 4 5 6

Symptom Possible Causes What to do
The first-stage CS-104 unit will
not take Hot Key commands. Incorrect DIP switch settings . Set the first-stage CS-104 DIP switch
#4 to ON. Turn all
other CS-104s’
switches OFF.
Pressing the Hot Keys get no
response. The CS-104 is oper- ating in either Auto-
Scan or Previous/
Next mode.
Check the PORT
STATUS LEDs for a
flash pattern.
Or
Press the space bar
to exit these modes
before giving
Hot Key Commands.
The selected port
connects to a
“power-off” com-
puter
Manually change the
port selection, using
the SELECT BUT-
TON(S), to a com-
puter in the “power-
on” state.
Improper keyboard
reset Unplug the keyboard, then reconnect the
keyboard.
Improper CS-104
reset Turn off all CS-104s, wait for 5 seconds,
and turn them on.
Incorrectly pressing
hot keys
Try presing a single
key at a time. CTRL,
ALT, SHIFT, (Port
Number) then EN-
TER.
Mouse is not responding or be-
ing detected AT (Serial Mouse) and PS/2 style com-
puters being used
with CS-104
Both Serial and PS/2
mice must be used if
using AT and PS/2
style computers.
If using NT system
and Serial Number
begins with a letter
D, C, B or A.
NT System must be
selected at startup for
NT to detect the
mouse (Port light lit
while NT loading).
The CS-104 does not work
properly. The CS-104 can not get enough power
from the CPUs
Add a DC 9V power
adaptor to the
first-stage CS-104
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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 A computing device pursuant to
Subpart J of Part 15 of FCC Rules, which are designed to provide reasonable protection against such interfer-
ence 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
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IN NO EVENT SHALL THE DIRECT VENDOR’S LIABILITY EXCEED THE PRICE PAID FOR THE
PRODUCT FROM THE DIRECT, INDIRECT, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAM-
AGES RESULTING FROM THE USE OF THE PRODUCT, DISK OR ITS DOCUMENTATION.
The direct vendor makes no warranty or representation, expressed, implied, or statutory with respect to the
contents or use of this documentation, and speciallydisclaims its quality, performance, merchantability, or
fitness for any particular purpose.
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 update. For further inquires please contact your direct