ATEN CS-74M User manual

User Manual
CS-74M
Read this guide thoroughly and follow the installation and operation
procedures carefully in order to prevent any damage to the unit and/or any
devices that connect to it.
This package contains:
M1 CS-74M Mini Tower KVM Switch
M4 CS Custom KVM Cables
M6 Mounting Pads / 2 Cable Keepers
M1 User Manual
M1 Quick Start Guide
If anything is damaged or missing, contact your dealer.
© Copyright 2003 ATEN®International Co., Ltd.
Manual Part No. PAPE-1225-100
Printed in Taiwan 08/2003
All brand names and trademarks are the registered property of their respective owners.
2003-08-01

Note: This equipment has been tested and found to comply with
thelimitsforaClassBdigitaldevice, pursuanttoPart 15 oftheFCC
Rules. These limits are designed to provide reasonable protection
against harmful interference in a residential installation. This
equipmentgenerates,usesandcanradiateradiofrequencyenergy,
and if not installed and used in accordance with the instruction
manual, may cause interference to radio communications.
However, there is no guarantee that interference will not occur in a
particular installation. If this equipment does cause harmful
interference to radio or television reception, which can be
determined by turning the equipment off and on, the user is
encouraged to try to correct the interference by one or more of the
following measures:
MReorient or relocate the receiving antenna;
MIncrease the separation between the equipment and
receiver;
MConnect the equipment into an outlet on a circuit different
from that which the receiver is connected;
MConsult the dealer or an experienced radio/television
technician for help.
2003-08-01

Overview
The CS-74M KVM (Keyboard, Video, Mouse), Switch is a
control unit that allows the control of up to four computers from
a single console (keyboard, monitor, and mouse). With its
custom designed SCSI-20 CPU port connectors, the CS-74M
significantly reduces the number of ports required for a 4 Port
KVM switch.
The special connector design provides several advantages
over standard KVM switch implementations: 1) increased
reliability; 2) a handsome, space-saving, vertical-standing,
modern appearance; and 3) neater, more efficient, cabling that
eliminates the usual tangled mess.
Recognizing the increased importance of sound in the
computing environment, the CS-74M is audio enabled. A single
microphone can provide audio input to each of the computers,
and you can listen to the audio output of each computer on a
single set of speakers (on a one-at-a-time basis).
There are two convenient methods to access the computers:
push button port selection switches located on the unit’s front
panel; and Hotkey combinations entered from the keyboard.
Setup is fast and easy; simply plug cables into their appropriate
ports. There is no software to configure; no need to get
involved in complex installation routines; no need to be
concerned with incompatibility problems. Since the CS-74M
intercepts keyboard and mouse input directly, it works on
multiple hardware platforms and with most operating systems.
There is no better way to save time and money than with a
CS-74M installation. By allowing a single console to manage
both computers, the CS-74M eliminates the expense of
purchasing a separate keyboard, monitor, mouse, and audio
components for each one. Additionally, it saves the extra space
and energy costs that they would require, and eliminates the
inconvenience and wasted effort involved in constantly having
to move from one computer to the other.
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Features
MCompact vertical-standing design
MCustom SCSI-20 connector layout reduces the number of
ports and makes for a streamlined installation
MEasy to install - no software required - connecting cables to
the computers is all it takes
MEasy to operate - computer selection via selection switches
or hotkeys
MPower on detection - automatically switches to the first
powered on port - automatically switches to the next
powered on port if the current one is shut down
MAuto Scan function to monitor computer operation
MLED display for easy status monitoring
MHot pluggable - add or remove computers without powering
down the switch
MAudio (speaker and microphone) enabled
MCaps Lock, Num Lock, and Scroll Lock states are saved and
restored when switching
MKeyboard and Mouse Emulation for Error Free Computer
Booting
MSupports Microsoft IntelliMouse and the Scrolling Wheel on
Most Mice
MSuperior Video Quality - Up To 2048 x 1536; DDC2B
MSaves Time, Space, Power, and Equipment Costs
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2003-08-01

System Requirements
Console
MA VGA, SVGA, or Multisync monitor capable of the highest
resolution that you will be using on any computer in the
installation.
MA PS/2 style keyboard.
MA PS/2 style mouse.
Note: The CS-74M only supports PS/2 style mice - it does
not support serial mice.
Computers
The following equipment must be installed on each computer
that is to be connected to the system:
MA VGA, SVGA or Multisync port.
MA PS/2 Style mouse port.
MA PS/2 Style keyboard port.
Cables
Only CS Custom KVM cable sets specifically designed to work
with this switch may be used. Four (two 1.2 m and two 1.8 m)
KVM cable sets are provided with this package. If you need
additional cables, contact your dealer.
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2003-08-01

Components
Front View:
1. Port Selection Switches
Press a switch to give the KVM focus to the computer
attached to its corresponding port.
MPressing Buttons 1 and 2 simultaneously performs a
keyboard/mouse reset.
MPressing Buttons 3 and 4 simultaneously starts Auto
Scan Mode (see p. 10). While in Auto Scan Mode,
pressing either button exits Auto Scan Mode and
switches the KVM focus to its corresponding port.
2. Port LEDs
The Port LEDs are built into the Port Selection Switches. A lit
LED indicates that its corresponding Port is the one that has
the KVM focus. Depending on the Port’s status, the LED
may flash according to a specific pattern (see p. 14).
3. Keyboard Port
4. Mouse Port
5. Stand
The stand allows the CS-74M to stand upright on the desktop.
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1 & 2
3
4
5
2003-08-01

Rear View:
1. CPU Port Connectors
The KVM cables that connect the unit to the keyboard,
video, mouse, and audio ports on the computers you are
connecting up can plug into any available port.
Note: Only cables designed to work with this switch can be
used. See the Cables section on p. 3 for details.
2. Monitor Port
The video cable from your monitor plugs in here.
3. Power Jack
The power adapter cable plugs in here.
Note: The CS-74M does not require external power. Use of
a power adapter is optional, and requires a separate
purchase.
4. Microphone Jack
5. Speaker Jack
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2
3
1
4
5
2003-08-01

Installation
Preparation
The CS-74M can either lay flat on the desktop or stand upright.
To have it stand upright, place it in the mounting stand. Make
sure that the long end of the stand is to the rear.
To keep the unit from sliding around or scratching the desktop,
attach the silicone mounting pads that have been included with
this package to the bottom panel of the switch, or the bottom of
the mounting stand. The circular depressions show you where
the pads should go.
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1. Before you begin, make sure that power to all the
devices you will be connecting up have been
turned off. You must unplug the power cords of any
computers that have the Keyboard Power On
function. Otherwise, the switch will receive power
from the computer.
2. To prevent damage to your installation due to ground
potential difference, make sure that all devices on the
installation are properly grounded.
2003-08-01

Connecting Up
To connect up, refer to the diagrams on page 8 as you do the
following:
1. Plug your keyboard and mouse into their respective
connectors on the CS-74M’s front panel.
2. Plug your monitor, microphone, and speakers into their
respective connectors on the CS-74M’s rear panel.
3. Use the custom KVM cables (described in the Cables
section on p. 3), to connect the CS-74M CPU Ports to the
monitor, keyboard and mouse ports of the computers you
are installing.
4. For stability, use one of the Cable Keepers (provided with
your purchase) to wrap around the KVM cable and stick it to
the desktop.
5. If you choose to use external power, plug the power adapter
into an AC power source, then plug the power adapter cable
into the unit’s Power Jack.
Note: The power adapter should be DC9V with the inside
positive and the outside negative:
6. Turn on the power to the computers.
Note: The CS-74M’s default is to link to the first computer
you turn on.
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2003-08-01

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1
2
3 3
4
3
2003-08-01

Operation
Manual Port Selection
With Manual Port Selection you simply press the appropriate
Port Selection switch on the unit’s front panel to give the KVM
focus to its corresponding port. The Port LED lights to indicate
that its port has the KVM focus.
Hotkey Port Selection
Hotkey port selection allows you to directly access a computer
from the keyboard, instead of having to manually switch to it
with the Port Selection button. The CS-74M provides three
Hotkey navigation features:
MSelecting the Active Port
MAuto Scan Mode
MSkip Mode
Invoking Hotkey Mode:
All Hotkey operations begin by invoking Hotkey Mode. Invoking
Hotkey Mode takes three steps: 1) Press and hold down the
Num Lock key; 2) Press and release the asterisk key or the
minus key; 3) Release the Num Lock key:
[Num Lock] + [*];
or:
[Num Lock] + [-];
Note: The asterisk or minus key must be released within one
half second, otherwise Hotkey invocation is canceled
and it has no effect.
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2003-08-01

When Hotkey Mode is active:
MThe Caps Lock and Scroll Lock LEDs flash in succession to
indicate so. They stop flashing and revert to normal status
when you exit Hotkey Mode.
MOrdinary keyboard and mouse functions are suspended -
only Hotkey compliant keystrokes and mouse clicks
(described in the sections that follow), can be input.
MPressing [Esc] or [Spacebar] exits Hotkey Mode.
Selecting the Active Port:
Each CPU port is assigned a numeric Port ID (1 - 4). You can
give the KVM focus directly to any computer on the installation
with a Hotkey combination as follows:
1. Invoke Hotkey Mode (see p. 9)
2. Press and release the appropriate Port ID number (1, 2, 3,
or 4)
After you press the number, the KVM focus switches to the
designated computer and you automatically exit Hotkey Mode.
Auto Scan Mode:
The CS-74M’s Auto Scan feature automatically cycles through
the Ports at regular 5 seconds intervals so that you can monitor
the computer activity without having to take the trouble of
switching manually. To invoke Auto Scan Mode:
1. Invoke Hotkey Mode (see p. 9)
2. Press and release [A]
Once scanning begins, it continues until you press [Esc] or
[Spacebar] to exit Auto Scan Mode. The Port that is active at
the time scanning stops remains active.
Note: 1. While Auto Scan Mode is in effect, ordinary keyboard
and mouse functions are suspended. You must exit
Auto Scan Mode by pressing [Esc] or [Spacebar] in
order to regain normal control of their use.
2. Pressing [Esc] or [Spacebar] exits both Auto Scan
Mode and Hotkey Mode.
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2003-08-01

Skip Mode:
This feature allows you to skip from the currently active Port to
the Previous or Next one with a single keystroke. In contrast to
Auto Scan Mode (which switches Ports at a fixed interval), you
can dwell on a particular port for as long or as little as you like.
To activate Skip Mode:
1. Invoke Hotkey Mode (see p. 9)
2. Press [ ← ] to skip from the current port to the port that
comes before it (3 to 2; 2 to 1, etc.).
3. Press [ →] to skip from the current port to the port that comes
after it (1 to 2; 2 to 3, etc.).
Note: 1. Skip Mode remains in effect until you exit it. You can
use [ ← ] and [ →] as often as you like. Ordinary
keyboard and mouse functions are suspended - only
[← ] and [ →] can be input. You must exit Skip Mode
in order to regain normal control of the console.
2. Pressing [Esc] or [Spacebar] exits both Skip Mode
and Hotkey Mode.
Hotkey Summary Table
After invoking Hotkey Mode:
Combination Function
[Port ID Number] Switches access to the computer that corresponds to that
Port ID.
[A] Invokes Auto Scan Mode
[ ←] Switches access from the current port to the previous
port.
[ →] Switches access from the current port to the next port.
[Esc] or [Spacebar] Exits Hotkey, Auto Scan, and Skip Modes.
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2003-08-01

Specifications
Function Specification
CPU Ports 4
Port Selection Push Button Switches; Hotkeys
Connectors CPU 4 x SCSI-20 female
Monitor 1 x HDB-15 male
Audio 2 x Stereo earphone jacks
Power DC 9V jack
LEDs 4 Selected Port (Green)
Emulation Keyboard PS/2
Mouse PS/2
Scan Interval 5 secs.
Video Resolution 2048 x 1536; DDC2B
Operating Temperature 0 - 50oC
Storage Temperature -20 - 60oC
Humidity 0 - 80% RH, Noncondensing
Housing Metal
Weight 0.50 Kg
Dimensions (L x W x H) 13.9 x 81.4 x 34.8 cm
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2003-08-01

Troubleshooting
Symptom Cause Action
Keyboard or
Mouse Not
Responding*
Loose cables. Check all cable connections to make sure
they are completely seated in their sockets.
Switch is in Auto
Scan Mode. Press the Spacebar to exit Auto Scan Mode.
Keyboard / Mouse
needs to be reset. Press Port Selection buttons 1 and 2 for three seconds to perform a
keyboard/mouse reset.
Unplug the keyboard/mouse from the
Console Keyboard Port, then plug it back in.
Mouse set to Serial
Mode. Some mice can be set to act as either a PS/2 or serial mouse. Make sure the
mouse is set to PS/2 mode.
Incorrect Mouse
Driver. Check your Device Manager to be sure that the correct driver for your mouse (obtained
from the manufacturer, or supplied by the
operating system), has been installed.
Because of the wide variety of mouse driver
standards for the modern series of mice (the
ones with the extra buttons and wheels), this
unit only supports all of the extra features of
the Microsoft Intellimouse. It supports the
scroll wheel function of most other mice.
Switch needs to be
reset. Turn off the computers; wait 5 seconds; turn the computers back on.
Video
Problems Loose cables. Check all cable connections to make sure they are completely seated in their sockets.
Resolution and/or
Bandwidth set too
high.
This unit supports VGA, SVGA, Multisync,
and XGA (interlaced), with resolutions of
up to 2048x1536.
*Some Notebooks have trouble when their mouse and
keyboard ports are used simultaneously. To avoid this, only
connect the mouse port or the keyboard port. If you connect
the mouse port, you will need to use the notebook’s keyboard
when the notebook becomes the active computer.
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2003-08-01

LED Display
Activity Meaning
Off Port is not selected.
On (Steady) Port is connected to an active computer.
Flashing (On and Off equal) Port is connected to an active computer and is
being accessed in Auto Scan mode.
Limited Warranty
IN NO EVENT SHALL THE DIRECT VENDOR’S LIABILITY EXCEED
THE PRICE PAID FOR THE PRODUCT FROM 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 especially disclaims 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 inquiries, please contact your
direct vendor.
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2003-08-01