New Star CS221 User manual

2-PORT CONSOLE
SHARING SWITCH
CS221
User Manual
www.newstar.nl

Printed in Taiwan
Copyright 12/2004 NewStar

Table of Content
■ Introduction
Overview
1
Features
2
■ Installations
Console Connection
3
Computers Connection
4
Initial Power-up
5
■ Operations
Auto mode 6
Manual mode
7
■ Appendices
Specifications
8
Troubleshooting
9
Please read this manual thoroughly and
follow the Installation procedures to prevent any
damage to the Switch or any connecting device.

1
----------------- Introduction
Overview
The NewStar Console Sharing CS221 is a computer-sharing
device that allows two users to share one computer.
Based on the first-come-first-served principle, the CS221
automatically switches to a console when either user starts
to operate his keyboard or mouse. This
multi-user-single-tasking device is a perfect solution for
small office environment where files can be shared by two
users without the trouble of network.

2
Features
Supports PS/2 keyboard and mouse of different models at
each port
First-come-first-served basis
Automatic or manual selection
Operating system independent
High VGA resolution: up to 1920 x 1440
Power-free operation
No software is required

3
-----------------Installation
Console Connection
Turn your computer off. Connect two PS/2 keyboards to
the mini-DIN-6 ports: K-1 and K-2. And, connect two PS/2
mice to the mini-DIN-6 ports: M-1 and M-2. Then connect
two VGA monitors directly to the HDB-15 ports as shown in
figure 1.
Figure 1: Console Connection

4
Computers Connection
Keyboard (K), mouse (M) and monitor ports of the computer
must be connected to the CS221 as shown in figure 2.
Note: If your computer uses an AT style keyboard, you will
need an “AT to PS/2 keyboard adapter” at the computer
keyboard port.
Figure 2: Computer Connection

5
Initial Power-up
Make sure the computer and the NewStar Console Sharing
KVM switch are powered down before installation. After
connection completes, power up the computer. The
NewStar Console Sharing can be powered from the
computer. This procedure ensures the NewStar Console
Sharing receive computer settings correctly when computer
boots.

6
----------------- Operations
Auto Mode
On power up, the CS221 is in idle mode broadcasting VGA
signal to both monitors and detecting for keyboard and
mouse activity. Both User LEDs lit indicating the NewStar
Console Sharing is not in use. When either keyboard or
mouse activity is detected at one console, the NewStar
Console Sharing immediately disables the other Console
from accessing the computer. Only one User LED remains
lit indicating the NewStar Console Sharing is under user
operation. In the mean time, keyboard LEDs
(Num/Caps/Scroll Lock) of the other console start to flash as
its access is denied while CS221 broadcasting video signals
to both monitors. After the user has finished his operation
for a period of time (i.e. User Timeout), the multi-access
NewStar Console Sharing returns to idle state.
At any time, pressing the front pushbutton forces the CS221
cycle through port selection (see Manual Mode). The
operating user can press the <Scroll Lock> key twice to
terminate the timeout and return the CS221 to idle mode
immediately.

7
Manual Mode
By pressing the front panel pushbutton, the CS221 cycles its
access right from User A -> User B -> Auto -> User A…
At any time during operation, pressing the pushbutton forces
the NewStar Console Sharing to cycle its access right.
Manual mode is useful when a user intends to access the
computer for a long period of time. A user may terminate
his access by pressing the font pushbutton to select a
different port.
Hot-key Commands
Hot-key command is a short keystroke sequence to set User
Timeout.
left-Ctrl left-Ctrl F4
User Timeout
After a user has finished his operation for a period of time
(i.e., User Timeout), the CS221 returns to idle mode. User
Timeout has three options, 5 sec, 30 sec and 60 sec. For
user in operation, pressing Scroll Lock twice forces the
CS221 return to idle mode immediately regardless of the
User Timeout setting.

8
----------------- Appendices
Specifications
CS221
No. of computer
supported 1
Console port number 2
Front panel button control 1
Hot plug-and-play Yes
Hot-key control Yes
User timeout interval 5 sec, 30 sec and 60 sec
Cable length
30M max at computer and console
VGA 1920 x 1440, DDC2B
Computer connector
Keyboard
Mouse
Monitor
PS/2 x 1
PS/2 x 1
HDB-15 x 1
Console connector
Keyboard
Mouse
Monitor
PS/2 x 2
PS/2 x 2
HDB-15 x 2
H x W x D (mm) 40 x 124 x 70
Enclosure Metal
Weight 420g

9
Troubleshooting
Ensure that all cables are well seated. Check that
keyboard and mouse cables are not swapped. Label and
bundle the cables for computer and consoles to avoid
confusion when connected to the NewStar Console Sharing.
Symptom Causes Solutions
Keyboard or mouse
does not work Loose keyboard/mouse cable connection
Improper power-up
sequence
Make sure the keyboard and
mouse connectors are well
mated.
Unplug-then-plug the keyboard
and mouse cables
One set of console
does not work; the
other console works
well.
The other console is
taking control of the
switch.
Wait till the other console stops
using the switch, or press the
front panel button to release its
selection.
One of the monitor is
dark or does not
have VGAsignal.
The other console is
taking control of the
switch that itmouse is
moved by accident.
Some mice are sensitive to
motion. Please the mouse
upside down to avoid
unnecessary mouse activity
One set of console
works but the other
does not.
Both keyboards and mice
are not of the same type
and require different
drivers.
Use keyboards and mice ofthe
same type to avoid device drivers
from getting confused.

10
Keyboard and
mouse do not work
at all or from time to
time
Both keyboards and mice
use too much power, the
computer does not
provide enough power.
Establish power by applying a
power adapter to the switch.
VGAimage is fuzzy
or not very clear. Poor quality VGAcables Most VGAproblem comes from poor-quality VGAcables.
Please use a high-quality
UL-2919 rated VGAcable to
connect from the computer to the
switch.

Limited Warranty
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PRODUCT.
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expressed or implied with respect to the contents or use of
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performance, merchantability, or fitness for any particular
purpose.
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information, please contact your direct vendor.
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