Black Box ACS335A User manual

THE ACS335A KVM-EXTENDER FAMILY
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Welcome to the ACS335A KVM-Extender
Family!
Thank you for purchasing a ACS335A KVM-Extender model. We appreciate your business,
and we think you’ll appreciate the many ways that your enhanced keyboard/video/ mouse
system will save you money, time, and effort.
That’s because our ACS335A KVM-Extender not only allows you to remotely locate a
console (Monitor, Keyboard, Mouse + optional serial/audio devices) over great distances
without any loss in signal quality (up to 1000m/3250ft) but also to do this in an EMI
hazardous environment.
Wherever you have great distances: airports, roller plants, distributed data centres; or in a
range of applications where you have large electromagnetic generators or loads, magnetic
resonance tomographs, induction furnaces, current generators; the ACS335A KVM-Extender
is a solution for remotely locating your console. Two different models cover a range of
applications: a KVM extender for a standard remote console – Monitor, Keyboard and
Mouse; and a second unit with KVM extension and additional serial and bi-directional audio
support. This device is also suitable for computers equipped with a serial mouse or touch
screen.
This manual will tell you all about your new ACS335A KVM-Extender, including how to
install, operate, and troubleshoot it. For an introduction to the Extender,
see Chapter 2. The Extender product codes covered in this manual are:
ACS335A: KVM-Extender for VGA, PS2-Keyboard/Mouse
ACS335A-AS: KVM-Extender for VGA, PS2-Keyboard/Mouse + Serial/Audio

ACS335A –5 STRAND KVM-EXTENDER
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Copyrights and Trademarks
©2006. All rights reserved. This information may not be reproduced in any manner without
the prior written consent of the manufacturer.
Information in this document is subject to change without notice and the manufacturer shall
not be liable for any direct, indirect, special, incidental or consequential damages in
connection with the use of this material.
All trademark and trade names mentioned in this document are acknowledged to be the
property of their respective owners.
Disclaimer
While every precaution has been taken in the preparation of this manual, the manufacturer
assumes no responsibility for errors or omissions. Neither does the manufacturer assume any
liability for damages resulting from the use of the information contained herein. The
manufacturer reserves the right to change the specifications, functions, or circuitry of the
product without notice.
The manufacturer cannot accept liability for damage due to misuse of the product or due to
any other circumstances outside the manufacturer’s control (whether environmental or
installation related). The manufacturer shall not be responsible for any loss, damage, or injury
arising directly, indirectly, or consequently from the use of this product.
Cautions and Notes
The following symbols are used in this guide:
CAUTION. This indicates an important operating instruction
that should be followed to avoid any potential damage to
hardware or property, loss of data, or personal in ury.
NOTE. This indicates important information to help you make the best use
of this product.

FCC/CDC STATEMENTS
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FEDERAL COMMUNICATIONS COMMISSION
AND CANADIAN DEPARTMENT OF COMMUNICATIONS
RADIO-FREQUENCY INTERFERENCE STATEMENTS
This equipment generates, uses, and can radiate radio-frequency energy, and if not installed
and used properly, that is, in strict accordance with the manufacturer’s instructions, may
cause interference to radio communication. It has been tested and found to comply with the
limits for a Class A computing device in accordance with the specifications in Subpart B of
Part 15 of FCC rules, which are designed to provide reasonable protection against such
interference when the equipment is 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 necessary to correct the
interference.
Changes or modifications not expressly approved by the party responsible for compliance
could void the user’s authority to operate the equipment.
Shielded PC-equipment cables must be used with this equipment to maintain compliance with
radio frequency energy emission regulations and ensure a suitably high level of immunity to
electromagnetic disturbances.
This digital apparatus does not exceed the Class A limits for radio noise emission from digital
apparatus set out in the Radio Interference Regulation of the Canadian Department of
Communications.
Le présent appareil numérique n’émet pas de bruits radioélectriques dépassant les limites
applicables aux appareils numériques de la classe A prescrites dans le Règlement sur le
brouillage radioélectrique publié par le Ministerié des Communications du Canada.

EMPTY PAGE
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CE - DECLARATION OF CONFORMITY
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EUROPEAN UNION DECLARATION OF CONFORMITY
This is to certify that, when installed and used according to the instructions in this
manual, together with the specified cables and the maximum cable length <3m, the
Units:
ACS335A
ACS335A-AS
are shielded against the generation of radio interferences in accordance with the
application of Council Directive 89/336/EEC as well as these standards:
EN 55022: 1999 Class A
EN 55024: 1999
IEC 61000-4-2: 2001
IEC 61000-4-3: 2001
IEC 61000-4-4: 2001
EN 61000-3-2 2001
EN 61000-3-3 2002
The device was tested in a typical configuration with PC.
Oberteuringen, Wednesday, October 11
th
, 2006
The management
This equipment has been found to comply with the limits for a Class A digital device,
pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable
protection against harmful interference when the equipment is operated in a commercial
environment. This equipment generates, uses, and can radiate radio frequency energy and, if
not installed and used in accordance with the instruction manual, may cause harmful
interference to radio communications. Operation of this equipment in a residential area is
likely to cause harmful interference in which case the user will be required to correct the
interference at his own expense.

SAFETY PRECAUTIONS AND INSTALLATION GUIDELINES
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Safety Precautions and Installation Guidelines
To ensure reliable and safe long-term operation, please note the following installation
guidelines:
•Only use in dry, indoor environments.
•The Remote unit, Local unit and any power supplies can get warm. Do not locate them
in an enclosed space without any airflow.
•Do not place a power supply directly on top of a unit.
•Do not obstruct a unit’s ventilation holes.
To safeguard against personal in ury and avoid possible
damage to equipment or property, please observe the
following:
•Only use power supplies originally supplied with the
product or manufacturer-approved replacements. Do not
attempt to dismantle or repair any power supply. Do not
use a power supply if it appears to be defective or has a
damaged case.
•Connect all power supplies to grounded outlets. In each
case, ensure that the ground connection is maintained
from the outlet socket through to the power supply’s AC
power input.
•Do not attempt to modify or repair this product

QUICK SETUP
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Contents
1. Quick Setup 8
2. Overview 9
2.1 Introduction 9
2.2 Glossary 9
2.3 Features 11
2.4 Product Range 12
2.5 Compatibility 13
2.6 How to Use This Guide 14
3. Installation 15
3.1 Package Contents 15
3.2 Interconnection Cable Requirements 16
3.3 System Setup 17
3.4 Diagnostic and Adjustments 21
4. Adjustments 25
4.1 Jumper Location in the Local Unit 26
4.2 Jumper Location in the Remote Unit 27
4.3 Customization 27
5. Monitor Setup 30
5.1 TFT Monitors 32
5.2 Hints for Pixel Clock and Pixel Phase 33
5.3 Manual Adjustment of Video Signals 34
6. Troubleshooting 35
Appendix A: Example Applications 36
Appendix B: 19” Rack Mount Options 38
Appendix C: Audio/Serial Upgrade 40
Appendix D: Technical Support 42
Appendix E: Specifications 43
Appendix I: Connectors 45

ACS335A –5 STRAND KVM-EXTENDER
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1. Quick Setup
This section briefly describes how to install your KVM extender system and optimise the
video signals. Unless you are an experienced user, we recommend that you follow the full
procedures described in the rest of this manual.
Install System
1. Connect Remote unit to KVM.
2. Connect Local unit to CPU or switch.
3. Connect Local and Remote units with fibre interconnection cable.
4. Power up the system.
YES
NO
Does the 7-
segment display show
’0’?
NO
YES
Solve the problem as described in
the Troubleshooting section
(page 35).
Wait until the dot lapses
NO
YES
The fibres for data transmission
(1 + 2) are swapped – switch the
fibres at one device (see page 20).
Does the 7-
segment display show
’C’?
Is the dot on the
7 segment display
illuminated?
Done

OVERVIEW
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2. Overview
2.1 Introduction
With a fibre KVM Extender you can dramatically increase the maximum distance between a
CPU and its Console – the keyboard/mouse and monitor (+ serial/audio devices). In addition,
they are essential for installations in hazardous EMI environments. Normal
keyboard/mouse/monitor extender cables (and Extenders using regular cables) have lower
extension capabilities and EMI interference may further reduce the maximum distance and
reliability. The ACS335A fibre optical KVM Extender System has none of these limitations.
Locate your CPU in a secure cabinet or data centre and access it remotely from a distance of
up to 1000m.
A basic KVM extension system comprises a Local unit (transmitter) and a Remote unit
(receiver). The Local unit connects directly to the computer (or a KVM switch system) using
the supplied cable(s). The user console (keyboard, mouse and monitor) attaches to the
Remote unit. The Remote and Local units communicate video and data information along the
interconnecting cable. Local units offer dual access, allowing the connection of a second user
console close to the computer. With the optional upgrade kit, you can also use the units to
communicate stereo audio and serial port signals.
2.2 Glossary
The following terms are used in this guide:
Multimode Any multimode 5+-fibre cable 50/125µ or 62.5/125µ
PSU The desktop power supply connected to the Local/Remote unit.
KVM Keyboard, Video (monitor) and Mouse.
Console A keyboard, monitor, and mouse, plus optional serial/audio devices.
Dual Access A system allowing connection of Local and Remote user consoles.
RGB Video signal, consisting of R (red) G (green) and B (blue) signals. The
signals have a level of 0.7Vpp. The Green-Signal also carries the
(composite) synchronisation signals.
RGBS Video signal, consisting of R (red) G (green) and B (blue) signals and
the additional (composite) SYNC signal. All signals have 0.7Vpp.
VGA
(also called
RGBHV)
Video signal, consisting of R (red) G (green) and B (blue) signals and
the additional horizontal/vertical synchronisation signals. The colour
signals have a level of 0.7Vpp, the synchronisation TTL (5Volts).

ACS335A –5 STRAND KVM-EXTENDER
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ACS335A – KVM Extender System (Example)
CPU with VGA
Graphic Card
ACS335A KVM-Extender System
Optional Serial
device + Audio
Remote Console
Local Access