ATEN CS-201 User manual

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CPU Sharing Device
CS-201/CS-221
User's Manual

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Packing Checklist
n1 CS-201/CS-221 CPU Sharing Device
n1 User's Manual
Please read this manual thoroughly and follow the installation procedures carefully to prevent any
damage to the CS-201/CS-221 and/or the devices it connects to.
©Copyright 1997 Aten® International Co., Ltd.
Manual Part No. PAPE-1068-300
Printed in Taiwan 03/97
All brand names and trademarks are the registered property of their respective owners.

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Introduction
The CS-201/CS-221 is a powerful microprocessor controlled CPU sharing device that enables two users to share a single
computer. With two keyboard, mouse and monitor consoles, this multiuser-single tasking device is ideal for any small office
environment. All programs, files, data, and resources can be easily shared without having to implement networking.
Features
nSupports PS/2, IBM PC and Compatibles
nSupports PS/2, AT, and Auto Switchable Keyboards
nSupports SVGA, VGA, and Multisync Monitors
nNo Software Required
nOne Computer Shared By Two Monitor, Mouse, and Keyboard Sets
nAutomatic or Manual Console Selection
nScreen Save Function
nPrivate Mode For A Privileged User
nSupports PS/2 Mouse (CS-221 only)

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Installation
1. Turn the computer, all monitors, and the CS-201/CS-221 Off.
2. Connect the CPU Keyboard Port at the back of the CS-201/CS-221 to the computer keyboard port with a DIN-5 male-
to-male cable.
3. Connect the CPU Mouse Port at the back of the CS-201/CS-221 to the computer mouse port with a DB-9 male-to-
female cable.
4. Connect the CPU Monitor Port at the back of the CS-201/CS-221 to the computer VGA port with a DB-15 male-to-
male cable.
5. Connect the first Keyboard, Mouse, and Monitor console to the Console 1 ports on the CS-201/CS-221's rear panel.
6. Connect the second Keyboard, Mouse, and Monitor console to the Console 2 ports on the CS-201/CS-221's rear panel.
7. Set the DIP Switch switches according to your requirements. See the DIP Switch Setting section (below), for details.
8. Plug the Power Adapter that came with the CS-201/CS-221 into an AC source; plug the power adapter cable into the
Power Jack on the CS-201/CS-221's rear panel.
9. The CS-201/CS-221 will be ready for operation one minute after the DOS prompt appears on the monitor.
Note: Before turning on the computer, be sure the first port has a keyboard connected to it; otherwise, the error message:
Keyboard error
Press <F1> to RESUME
appears. If this happens, connect a keyboard to the KB1 port on the CS-201/221's rear panel; then press function key [F1] to
continue.
DIP Switch Setting
The meanings of the DIP Switch Settings are made clear in the section on Operation, below.
DIP Switch Number
1234
Function
ON ON X X 5 Second Timeout
OFF ON X X 15 Second Timeout
ON OFF X X 45 Second Timeout
OFF OFF X X 90 Second Timeout
X X ON XPrivate Mode Enabled
X X OFF XPrivate Mode Disabled
XXXON Screen Save Enabled
XXXOFF Screen Save Disabled

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Operation
Auto Mode
Auto Mode operates according to the following rules:
1. When the CS-201/CS-221 is turned on it comes up in Auto Mode, and operates on a first-come-first-served basis. Both
Console LEDs are On; the Manual LED is Off.
2. The first user to strike his keyboard has access to the computer. As soon as this occurs:
nThe CS-201/221, locks on to his console; during the time that he is locked on, the other user can not access the
computer;
nThe Console LED that corresponds to his console turns On;
nThe Console LED for the other console turns Off.
3. If the user who has access does not strike his keyboard or move his mouse before the Timeout Period (set with DIP
Switches 1 and 2), elapses:
nThe CS-201/CS-221 unlocks from his console;
nThe CS-201/CS-221 switches to Auto Mode;
nBoth Console LEDs turn On (indicating that either console may access the computer);
nThe Manual LED is Off (since the CS-201/CS-221 is in Auto Mode)
4. A user may terminate his access by either hitting the Left Shift Key six times to switch the CS-201/CS-221 back to
Auto Mode, or by pressing the Manual Button to select the other console.
Manual Mode
Manual Mode is used to access the computer for a long period of time. It is invoked by repeated pressing of the Manual
Button until the Console LED for the desired console turns On.
Note: Pressing the Manual Button causes the CS-201/CS-221 to cycle to the next choice:
Auto Mode --> Console 1 --> Consolel 2 --> Auto Mode
When Manual Mode is invoked, the CS-201/CS-221 locks onto the selected console and prohibits the other console from
accessing the computer. The lock-on remains in effect until the Manual Button is pressed again.
Private Mode
Private Mode is provided for security reasons. When Private Mode is invoked, only Console 1 has access to the computer,
and the CS-201/CS-221 disables Console 2 from seeing its operations. To invoke Private Mode:
1. Set DIP Switch 3 to the On position before turning on the CS-201/CS-221
2. From the Console 1 keyboard, press the [Right Shift] key six times
To end Private Mode:
1. From the Console 1 keyboard, press the [Right Shift] key six times, or
2. Press the Manual Button.

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Screen Save Function
To protect the screen phosphors, when the CS-201/CS-221 is in Auto Mode and noone is accessing the computer, a "stripe"
image can scrol ldown the screen. To enable this function, set DIP Switch 4 to the On position before turning on the CS-
201/CS-221.
Specifications
Function CS-201 CS-221
Number of Users 2
Shared Functions Keyboard, Monitor, Mouse
2 Console SelectedLEDs
1 Manual Status
Function Keys Automatic / Manual Selection
Timeout Setting 5 - 90 Seconds
Keyboard Connectors 3 DIN-5 Female (Input/Output) 3 Mini DIN-6 Female (Input/Output)
1 DB-9 Female (Input)Serial Mouse Connectors
2 DB-9 Male (Output)
PS/2 Mouse Connectors X3 Mini DIN-6 Female (Input/Output)
VGA Connectors 3 High Density DB-15 (Input/Output)
Enclosure Metal & Plastic
Weight 2650g
Dimensions (L x W x H) 254 x 180 x 82 (mm)
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.