Packing Checklist
1 CS-102 or CS-122 CPU Switch
1 User's Manual
Master View
CPU Switch
CS-102/CS-122
User's Manual
Please read this manual thoroughly and follow the installation procedures carefully to prevent any
damage to the CS-102/CS-122 and/or the devices it connects to.
©Copyright 1995 Aten® International Co., Ltd.
Manual Part No. PAPE-0135-100
Printed in Taiwan 08/95
All brand names and trademarks are the registered property of their respective owners.
Introduction
The CS-102 or CS-122 CPU Switch is a controller for one user to access multiple computers. 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 a Master View CPU Switch, you can easily access multiple computers in a cost effective
manner. The CS-102 and CS-122 are basically similiar in their functions. The difference is that the latter offers PS/2 mouse
ports.
There are two methods to switch from one computer to the other: with a pushbutton switch, or with Hot Keys. Setup is fast
and easy; plugging cables into their appropriate ports is all that is entailed. There is no software to configure or install, and
there are no incompatibility problems. Since the Master View intercepts keyboard input directly, it works on any hardware
platform and with all operating systems.
A CS-102/CS-122 can control up to two computers. Units can be cascaded to three levels, allowing the user to control even
more computers. A powerful auto-scan feature scans all operational computers one by one and stops upon user requests.
The CS-102/CS-122 CPU Switch is ideal for Server, Control Room, Testing, etc.
Features
CS-102 for PCs / CS-122 for PS/2s.
PS/2 Mouse and MS Mouse Emulation.
Supports SVGA, VGA, and Mutisync Monitors.
Simple Keystrokes or Pushbutton for PC Selection.
Buzzer Sounds for Switching Confirmation.
Three Stage Cascadable.
Power-free Operation.
Auto Scan and Manual Selection.
Caps Lock, Num Lock, Scroll Lock States Automatically Saved and Restored When Switching Among Computers.
Scan Mode Automatically Switches Through Powered On Computers - Scan Rate is DIP Switch Selectable.
Saves Space, Equipment, and Power Costs.
Easy Hot Key Control is Compatible With Normal Keyboard Operation.
CS-102/CS-122 Front and Rear Views
Specifications
Power Consumption DC 9V 160mA (max.)
PC Connections 2
PC Selected By Keyboard/Button
LEDs 1 Power
CS-122 Side View
Function Specification
2 Ready
2 Select
Scan Interval 3, 10, 20, 40 Sec.
Keyboard Connector 5-pin DIN+, 6-pin mini-DIN
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 Plastic and Metal
Weight 1150g
Dimensions (L x W x H) 224 x 152 x 52 (mm)
+
CS-102
*
CS-122
*
Installation
Installation is fast and easy; plugging cables into their appropriate ports is all that is entailed. A Master View CS-102/CS122 unit can control two PCs. To control even more computers, units can be cascaded to three levels, with each other, and
down from CS-104s and CS-106s.
One Stage Installation
A One Stage Installation enables one CS-102 or CS-122 to control up to two computers, as shown in Fig. A, below.
Fig. A
1. Set DIP switch 4 to ON.
2. Connect the monitor output port, mouse port, and keyboard port of the computer to either of the PC ports on the CPU
SWITCH with appropriate cables. 5-pin DIN connectors are for AT style keyboard sockets; 6-pin mini-DIN connectors
are for PS/2style keyboard sockets.
3. Use either port per computer.
4. Add a power adapter if the CPU Switch works abnormally.
Two Stage Installation
Adding a second stage enables one CPU Switch (the first stage CS-104 or CS-106) to control computers directly or
indirectly via cascaded CPU Switches (the second stage CS-102, CS-104 or CS-106). The number of PCs under control is
determined by the configuration.
Fig. B
1. Set DIP switch 4 of the first stage CPU Switch to ON and all others off.
2. Computers may be connected to the first stage and the second stage CPU Switches. 5-pin DIN connectors are for AT
style keyboard sockets; 6-pin mini-DIN connectors are for PS/2style keyboard sockets.
3. Use either keyboard port per computer.
4. To connect the keyboard ports of two CPU Switches, use the 5-pin DIN ports only.
Note: 1. Add a power adapter if the CPU Switch works abnormally.
2. Neither the PC1 or PC2 port of a CS-102 or CS-122 can be connected to a CS-104 or CS-106.
3. For PS/2 users: You must connect a PS/2 mouse, because a serial mouse can not replace a PS/2 mouse. For
cascaded operation, connect PS/2 mouse ports of successive stages using a 6-pin mini-DIN male-to-male
cable.
Three Stage Installation
Adding a third stage enables one CPU Switch (the first stage CS-104 or CS-106) to control computers directly or indirectly
via cascaded CPU Switches (the second and third stage CS-102, CS-104 or CS-106). The number of PCs under control is
determined by the configuration.
Fig. C
1. Set DIP switch 4 of the first stage CPU Switch to ON and all others off.
2. Computers may be connected to the first stage, the second stage, and the third stage CPU Switches. 5-pin DIN
connectors are for AT style keyboard sockets; 6-pin mini-DIN connectors are for PS/2style keyboard sockets.
3. Use either keyboard port per computer.
4. To connect the keyboard ports of two CPU Switches, use the 5-pin DIN ports only.
Note: 1. Add a power adapter if the CPU Switch works abnormally.
2. Neither the PC1 or PC2 port of a CS-102 or CS-122 can be connected to a CS-104 or CS-106.
3. For PS/2 users: You must connect a PS/2 mouse, because a serial mouse can not replace a PS/2 mouse. For
cascaded operation, connect PS/2 mouse ports of successive stages using a 6-pin mini-DIN male-to-male
cable.
Operation
There are two ways to access any computer on the installation: by pressing the front panel SELECT BUTTON, or by
entering Hot Keys from the keyboard. Once a computer has been accessed, the CPU Switch directs keyboard control, mouse
control, and video image of that computer to you as if the computer were right next to you.
Front Panel Button Selection
To select a computer with this method, simply press the front panel SELECT BUTTON of the CPU Switch it connects to
several times. When it is selected, the corresponding LED turns on to indicate so.
For a two stage installation, you have to select with both CPU Switches; for a three stage installation, you have to select
with all three CPU Switches.
The SELECT LED turns on when the SELECT BUTTON is pressed.
Hot Key Selection
Hot Keys are entered by pressing and releasing Alt, Ctrl, and Shift keys simultaneously, followed by the command key(s),
and end with pressing the Enter key.
1. Scan Mode:
Scan Mode automatically scans powered on computers one-by-one from the first computer of the first stage to the last
computer of the last stage. To start Scan mode, enter this combination:
[Alt+Ctrl+Shift]+0+[Enter]
To end Scan Mode, press:
Space
2. Previous/Next Mode:
Previous/Next Mode selects powered on computers manually one-by-one from the first computer of the first stage to the
last computer of the last stage. To start Previous/Next mode, enter this combination:
[Alt+Ctrl+Shift]+9+[Enter]
To select the previous port, press:
LeftShift
To select the next port, press:
RightShift
To end Previous/Next Mode, press:
Space
3. Direct Port Selection:
With Direct Port Selection you can access any powered on computer on the installation directly. To directly select a first
stage port, enter this combination:
[Alt+Ctrl+Shift]+#+[Enter]
Where # represents the port number that the computer you wish to access is attached to.
To directly select a second stage port, enter this combination:
[Alt+Ctrl+Shift]+#+#+[Enter]
Where the first # represents the port number on the first stage switch, and the second # represents the port number on the
second stage switch that the computer you wish to access is attached to.
To directly select a third stage port, enter this combination:
[Alt+Ctrl+Shift]+#+#+#+[Enter]
Where the first # represents the port number on the first stage switch, the second # represents the port number on the
second stage switch, and the third # represents the port number on the third stage switch that the computer you wish to
access is attached to.
Note: # is a digit between 1 and 6 for a CS-106; 1 and 4 for a CS-104; and 1 and 2 for a CS-102/CS-122.
4. Hot Key Summary:
Hot Key functions are summarized in the table, below:
Results For Correct Hot Keys*
Scan
Prev/Next
Direct
Ÿ Filters out the Hot Keys and beeps once
Ÿ Scans powered on computers one by one and flashes corresponding LED
Ÿ Scan rate is set by the DIP switch of the 1st stage CS-104
Ÿ Pressing the Space bar stops this mode
Ÿ Filters out the Hot Keys and beeps once
Ÿ [RightShift] selects a higher numbered computer
Ÿ [LeftShift] selects a lower numbered computer
Ÿ Pressing the Space bar stops this mode
Ÿ Filters out the Hot Keys and beeps once for a ready port; otherwise, beeps twice
Ÿ Switches to the selected port
Appendix
LEDs
The CS-102/CS-122 contains one Power LED, two Ready LEDs, and two Port Select LEDs on its front panel. Their
indications are as follows:
Power LED: Lights when the CPU Switch is running.
Ready LED: Lights when the connected PC or CPU Switch is running.
Port Select LED: Lights to indicate the currently selected port.
Depending on conditions, the Port Select LED turns on and off according to the following pattern:
Condition Pattern
1 Port Not Selected Off
2 Port Connects to a CPU Switch Flashes Long Off; Short On
3 Port Connects to a Computer Steady On
4 Port Connects to a Computer Under Previous/Next Mode Flashes Long On; Short Off
5 Port Connects to a Computer Under Scan Mode Flashes On and Off Equally
DIP Switch Setting
Scan Time is determined by the DIP Switch of the First Stage* CPU Switch. For the second and the third-stage CS-102/122
units, all DIP switches are set to Off.
DIP Switch Number Scan Time
1 2 3 4
ON ON X ON 3 Sec.
OFF ON X ON 10 Sec.
ON OFF X ON 20 Sec.
OFF OFF X ON 40 Sec.
* The CPU Switch that the keyboard, monitor, and mouse connect to is the First Stage unit.
Troubleshooting
Symptom Cause Action
1st stage CS-102/CS-122 does not
take Hot Keys.
Pressing Hot Keys gets no
response.
The CS-102/122 does not work
properly.
Incorrect DIP Switch settings. Set the First Stage CS-102/CS-122 DIP Switch 4 to ON; for all other
CS-102/CS-122 is in Scan Mode or
Previous/Next Mode.
Selected port connects to a
powered off computer.
Improper keyboard reset. Unplug the keyboard from the connector, then plug it back in.
Improper CS-102/122 reset. Turn off all CS-102s/122s, wait for 5 seconds, then turn them back on.
The CS-102/122 can not get enough
power from CPUs.
(cascaded) CS-102 units, set DIP Switch 4 to OFF.
Press the Spacebar to exit Scan Mode or Previous/Next Mode.
Change the port selection to a powered on computer.
Turn off all computers, wait for 5 seconds, then turn them back on.
Use a DC 9V power adapter with the First Stage CS-102/122.
Preventing Radio & TV Interference
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. It 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 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 EXCEED THE PRICE PAID FOR THE PRODUCT
FORM DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES 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 specially disclaims its quality, performance, merchantability, or fitness for any particular
purpose.
The direct vendor also reserves the right to revise or update device or documentation without obligation to notify any
individual or entity of such revisions, or update. For further inquires please contact your direct vendor.
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