Scene Double SDBX/S2-1 User manual

User Guide
November 2009
CATx KVM Extender Range
Dual Video Channel Kits
Model SDBX/S2-1
Model SDBX/SA2-1
Dual Video/Local Access Channel Kits
Model SDBX/D2
Model SDBX/DA2

Notices 1
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 injury.
NOTE. This indicates important information to help you make the best use of
this product.
Copyrights and Trademarks
©2005/2009. 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.

2CATx KVM Extender Range
Safety Precautions and Installation Guidelines
To ensure reliable and safe long-term operation please note the following
installation guidelines:
•Do not use to link between buildings.
•Only use in dry, indoor environments.
•If the building has 3-phase AC power, try to ensure that equipment
connected to the Local and Remote Units is on the same phase.
•Try not to route the CATx link cable alongside power cables.
•The use of shielded CATx cable is recommended to maintain compliance.
•Ensure that the system connected to the Local Unit is connected to power
ground.
•Ensure that the monitor connected to the Remote Unit is connected to power
ground and does not use an isolated power supply.
•The Remote Unit and any power supplies can get warm. Do not situate them
in an enclosed space without any airflow.
•Do not place the power supply directly on top of the Remote Unit.
•Do not obscure the Remote Unit’s ventilation holes.
•This product is not suitable for use in isolated medical environments.
To safeguard against personal injury 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, or make a
connection from the CATx link interface (RJ45) to any other
products, especially telecommunications or network
equipment.

Contents 3
Contents
1.Quick Setup 5
Command Summary 6
2.Overview 7
Introduction 7
Glossary 7
Features 9
Product Range 10
Compatibility 10
How to Use This Guide 12
3.Installation 13
Package Contents 13
Interconnection Cable Requirements 14
Remote Unit Installation 15
Local Unit Installation 17
4.Remote Unit Configuration & Operation 19
Video Configuration Overview 19
Video Adjustments 20
Command Mode 21
Adjusting Video 22
Other Remote Configuration & Operation Options 27
5.Local Unit Operation 30
Overview 30
Dual Access Systems 30
6.Troubleshooting 32
Video 32
Keyboard & Mouse 34
Audio 35
Serial 35
General Questions 36

4CATx KVM Extender Range
Appendix A: Example Applications 37
Appendix B: Rack Mount Options 40
Appendix C: Flash Upgrading & External Configuration 41
Appendix D: Advanced Cabling Issues (Skew) 42
Appendix E: Audio/Serial Ports: Operation & Multi-Port
Configuration 45
Appendix F: Obtaining Technical Support 47
Appendix G: Specifications 48
Appendix H: EU Regulatory Compliance 51
Appendix I: North American Regulatory Compliance 52
Appendix J: Disclaimer 52

Quick Setup 5
1. Quick Setup
This section briefly describes how to install your KVM extender system and
optimize the video signals. Unless you are an experienced user, we recommend
that you follow the full procedures described in the rest of this manual. Refer to
the command summary on the next page when following this procedure.
.
Install system
2. Connect Remote Unit to KVM and audio/serial
devices (if present).
3. Connect Local Unit or Extender hub to CPU.
4. Connect Remote and Local Units with compatible
CATx Interconnect cable.
5. Power up system.
Any Problems? See
Installation and
Troubleshooting sections.
View Test Card
http://testcard.kvmextender.info
Enter Command Mode on Remote Unit
<Left Control> + <Left Shift> + <F10>
Choose video channel
<1>, <2> or <0>
(
both
)
Apply Assisted EQ
Next: <Left Control> + <Page Up>
Previous: <Left Control> + <Page Down>
Reset channel
<Left Control> + <Home>
Correct Skew
Adjust the individual colour delays until the test card’s
RGB vertical lines are aligned.
Fine tune LF and HF EQ
Reduce smearing and loss of sharpness.
TFT Users: Set to auto-adjust, or if you are an advanced
user, manually adjust the monitor’s clock and phase.
Exit Command Mode
<ESC>
More channels?
Yes No
Provides useful image for
adjusting video.
Obtain approx. EQ
setting. See page 23.
All adjustments apply to
selected channel.
See page 23.
See page 24 and, for a
detailed discussion of skew
correction, see Appendix D.
Optimize video quality.
See page 25.

6CATx KVM Extender Range
Command Summary
By using a specific ‘hot’ key sequence, you can put the remote console keyboard into a
Command Mode. From this, you can use various keys and key combinations to tune the video
signal and generally configure the extender system. The following table summarizes the ‘hot’
key command sequences used in system configuration and video tuning.
Command Mode
Enter Command Mode*
Exit Command Mode & Save*
Exit Command Mode Without Save*
<Left Control> + <Left Shift> + <F10>
<ESC>
<Left Control> + <ESC>
Video Channel Selection
Select Channel For Adjustment
Select BOTH Video Channels <1>, <2>
<0>
Assisted EQ
Next Assisted EQ Setting
Previous Assisted EQ Setting
Reset EQ & Delay Values
Reset EQ Values
<Left Control> + <Page Up>
<Left Control> + <Page Down>
<Left Control> + <Home>
<Left Control> + <End>
LF/HF Equalization
Increase LF Equalization (Coarse)
Increase LF Equalization (Fine)
Decrease LF Equalization (Coarse)
Decrease LF Equalization (Fine)
Increase HF Equalization (Coarse)
Increase HF Equalization (Fine)
Decrease HF Equalization (Coarse)
Decrease HF Equalization (Fine)
<L> + <Up Arrow>
<L> + <Right Arrow>
<L> + <Down Arrow>
<L> + <Left Arrow>
<H> + <Up Arrow>
<H> + <Right Arrow>
<H> + <Down Arrow>
<H> + <Left Arrow>
Quick Skew
Toggle RED Delay (19nS)
Toggle GREEN Delay (19nS)
Toggle BLUE Delay (19nS)
<Left Control> + <R>
<Left Control> + <G>
<Left Control> + <B>
Delay (Skew)
Increase RED Delay
Increase GREEN Delay
Increase BLUE Delay
Decrease RED Delay
Decrease GREEN Delay
Decrease BLUE Delay
<R> + <Right Arrow>
<G> + <Right Arrow>
<B> + <Right Arrow>
<R> + <Left Arrow>
<G> + <Left Arrow>
<B> + <Left Arrow>
Reset Commands
Reset Mouse and Keyboard*
Mouse Recovery*
Set Extender To Default State*
<F1>
<F3>
<Left Control> + <F9>
Other Commands
Toggle Private Mode*
Toggle Video Blanking State at other console*
Disable DDC Emulation
Enable DDC Emulation
Transfer DDC from monitor to Local Unit**
<Scroll Lock>
<Left Control> + <Scroll Lock>
<Left Control> + <F2>
<F2>
<Left Control> + <D>
* Commands also available at local console in Dual Access Kits: SDBX/D2 and SDBX/DA2 (see page 30).
** Available on Remote Units with hardware version 6.3 and above (see page 29).

Overview 7
2. Overview
Introduction
The SDBX product range enables dual channel high-resolution video, PS/2
keyboard and mouse, stereo audio, and serial port signals to be communicated
up to 300m over Category 5, 5e, 6 or higher (CATx) cable.
A basic SDBX 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 connecting CATx cable
(Figure 1).
Within the product range, models are available with combinations of the
following:
•Audio transmission: bi-directional stereo audio (16-bit digitized).
•Serial transmission: transparent serial COM port (to 19.2Kbps).
•Dual access: allowing a second user console at the Local Unit.
Glossary
The following terms are used in this guide:
CATx Any Category 5, 5e, 6 or higher cable.
PSU Power Supply Unit.
KVM Keyboard, Video 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.
Single Head An extender system that supports one monitor.
Dual Head An extender system that supports two monitors.

8CATx KVM Extender Range
Figure 1 SDBX CATx KVM extender system
Local Access
SDBX/D2, SDBX/DA2 only.
Audio Transmission
SDBX/SA2-1, SDBX/DA2
KVM extension over CATx
cables u
p
to 300m.
LOCAL Unit
REMOTE Unit
Serial Transmission
SDBX/SA2-1, SDBX/DA2

Overview 9
Features
Members of the SDBX CATx KVM Extender Series offer the following
features:
•Support for high video resolution for use with TFT displays:
1600x1200@60Hz over 200m
1280x1024@75Hz over 300m
Higher resolutions may be possible over shorter distances.
•Fully integrated skew compensation allows operation with CATx cables by
canceling color shift and enhancing sharpness.
•Independent low frequency (LF) and high frequency (HF) cable
equalization control ensures optimum video tuning across different cable
types.
•All control and video tuning carried out using the remote console keyboard
with settings stored in EEPROM memory.
•Local and Remote Unit firmware and settings flash upgradeable (cable
required).
•Emulated DDC (Display Data Channel) on both video channels
Extender Local Unit emulates a universal monitor; ensures compatibility
with multi-head graphics cards
•Transparent DDC (hardware version 6.3 and above)
Remote Unit reads DDC table from attached monitor, transfers and stores
data in Local Unit to support non-standard displays.
•Dual-Head Local access
(SDBX/D2 and SDBX/SA2-1 only)
•Private Mode on dual-access models allows users to lock out other console.
Monitor on locked console can be enabled or blanked.
(SDBX/D2 and SDBX/DA2 only)
•Status indicator LEDs on each RJ45 port.
•Small footprint chassis with rack mount options available.
•Surge protection on each RJ45 port.
•Local Units are normally powered directly by the PC (or switch). Connector
for optional 5V PSU.
•Transparent serial port (on certain models) enables any serial device to be
extended (up to 19.2K Baud). The serial port may be used to extend one
device (requiring handshaking lines), or up to three simple serial devices
(no handshaking).
(SDBX/SA2-1 and SDBX/DA2 only)
•Bi-directional stereo audio (16-bit digitized) support on certain models
enables high-quality audio extension.
(SDBX/SA2-1 and SDBX/DA2 only)

10 CATx KVM Extender Range
Product Range
There are four products in the range:
Dual Video Channel Kit (Standard)
SDBX/S2-1 Dual Video Channels, PS/2 KB & Mouse
Local Unit + Remote Unit
Dual Video Channel Kit (Audio)
SDBX/SA2-1 Dual Video Channels, PS/2 KB & Mouse,
Serial, Stereo Audio
Local Unit + Remote Unit
Dual Video Channel/Dual Access Kit (Standard)
SDBX/D2 Dual Video Channels, PS/2 KB & Mouse
Local Unit + Remote Unit
Dual Video Channel/Dual Access Kit (Audio)
SDBX/DA2 Dual Video Channels, PS/2 KB & Mouse,
Serial, Stereo Audio
Local Unit + Remote Unit
Compatibility
Interface Compatibility
•PS/2 Keyboard: Compatible with all standard keyboards. Certain
keyboards with enhanced features may also be supported with custom
firmware.
•PS/2 Mouse: Compatible with all standard 2-button, 3-button and wheel
mice. To connect to a PC that does not have a PS/2 mouse port, an active
serial converter is required - Model: Mdapt (PS/2).
•Audio: Input and output are line-level. Amplified speakers are required. A
microphone may be directly connected to the Remote Unit (optional pre-
amplification).
•Serial: Transparent up to 19.2K Baud (38.4K operation may be possible
with some devices). The following serial signals are extended: TX, RX,
RTS, CTS, DTR, DSR. In rare cases, a wiring adaptor may be required to
transfer RI and DCD.
•Video: VGA to UXGA. Separate sync, composite sync, or sync-on-green.
Maximum resolution and refresh rates depend on cable length and cable
type (see Appendix G: Specifications, page 48).

Overview 11
Extender Compatibility
The SDBX range of CATx KVM extender products offer enhanced
performance while maintaining complete compatibility with existing SDLink
standalone and rack mount CAT5 extenders.
You can use SDLink and SDBX products belonging the same family in any
combination. However, it is not possible to mix Standard and Audio products
within a system except for video only applications. SDBX units are not
currently compatible with SDLink SUN or SDLink Serial (no audio) products.
Standard Family Audio Family
SDBX/S2-1, SDBX/D2 SDBX/SA2-1, SDBX/DA2
SDLink1 SDLink2 SDLink1/AU SDLink2/AU
SDLink/LC SDLink/DM SDLink/AM SDLink/RA
SDLink2/SW SDLink/RLC SDLink/MAR SDRK/6A
SDLink/R SDLink/RSW SDRK/6AD SDRK/6RA
SDRK/6 SDRK/6D SDBX/SA1 SDBX/SA2
SDRK/12 SDRK/6R SDBX/RA1 SDBX/RA2
SDBX/S1 SDBX/S2 SDBX/RA4 SDBX/DA1
SDBX/R1 SDBX/R2 SDMX/SA2 SDMX/DA2
SDBX/R4 SDBX/D1 SDMX/RA2
SDMX/S2 SDMX/D2
SDMX/R2

12 CATx KVM Extender Range
How to Use This Guide
This guide describes the installation and configuration of the SDBX range of
KVM extenders. Although the connection and operation of the system is
relatively straightforward, you should consider the following before getting
started:
Connection & Compatibility
If you have purchased an SDBX Extender kit, this will contain all the cables
required to connect the Local Unit to your PC or KVM switch. The remote
console (keyboard, monitor and mouse) and any audio and serial equipment
connect directly to the Remote Unit.
If you have purchased an SDBX Remote Unit, ensure that it is compatible with
your Local Unit (see Compatibility, page 10).
For information about connection and installation, see Installation, page 13.
Interconnection Cable
You will need CATx (any category 5, 5e, 6 or higher) cable, terminated with
RJ45 plugs, to connect the Local and Remote Units (see Interconnection
Cable Requirements, page 14.
Adjusting Video
Video signals become distorted when transmitted over CATx cables. To get the
best from your extender system, it is essential that you adjust the SDBX
Remote Unit to optimize the video image quality.
•For experienced users, there is a Quick Setup section at the start of this
guide (see page 5).
•For the full procedure, see Remote Unit Configuration & Operation, page
18.
•Refer to Appendix D: Advanced Cabling Issues (Skew), page 42 for a
more in depth discussion of skew correction and advanced cabling issues.

Installation 13
3. Installation
For first-time users we recommend that you carry out a test placement, confined
to a single room, before commencing full installation. This will allow you to
identify and solve any cabling problems, and experiment with the KVM
extender system more conveniently.
Package Contents
You should receive the following items in your extender package. If anything is
missing, please refer to Appendix F: Obtaining Technical Support, page 47.
•Extender Remote Unit.
•9V DC universal power supply for Remote Unit.
•Extender Local Unit.
•KVM CPU combination cable (1.0m) with PS/2 (6-pin MiniDIN male)
keyboard and mouse connectors, VGA video (HD15 male) connector, and
25-way (DB25 male) extender connector.
•CPU video cable (1.0m) with VGA video (HD15 male/female) connectors.
•Serial cable (1.0m, DB9 male/female connectors, 1:1 connections).
Models: SDBX/SA2-1 and SDBX/DA2 only.
•Dual audio cable (1.0m, 3.5mm stereo plugs).
Models: SDBX/SA2-1 and SDBX/DA2 only.
•IEC AC Power Cord.
•Quick Start Guide.

14 CATx KVM Extender Range
Interconnection Cable Requirements
To connect the Local and Remote Units you will need CATx (any category 5,
5e, 6 or higher) cable terminated with RJ45 plugs. Please note that shielded
cable is advised to maintain regulatory EMC compliance.
Interconnect cables must be solid-core type. Stranded patch cable will give poor
results over longer distances. The pairing of the cable and pinning of its
connectors should normally be in accordance with EIA-568B (see page 43).
One CATx cable is required for each video channel.
•The Primary interconnect cable connects INTERCONNECT Port 1 on the
Local and Remote Units. This carries the main video channel and all data
(plus audio/serial).
•The Secondary CATx cable (connected to INTERCONNECT Port 2)
carries the second video channel.
In order to send Keyboard, Mouse, Audio and Serial signals to the PC, the
Primary interconnect must be connected.
The Primary interconnect does not have to be connected in order to use the keyboard
attached to the Remote Unit for set-up. However, if the Primary interconnect is
disconnected, the keyboard cannot be used for configuration for 15 seconds after
disconnection (to maintain data integrity).
With some cables, video performance may be improved by using a cross-over patch
cable at each end or an alternative RJ45 pin-out (see Appendix D: Advanced Cabling
Issues (Skew), page 42).

Installation 15
Remote Unit Installation
To install a Remote Unit:
1. Switch off all devices.
2. Connect your keyboard, monitor(s) and mouse to the Remote Unit as shown
in Figure 2.
These ports may also be attached to the CPU side of a KVM switch in order
to have a remote CPU. However, if you are attempting to use the extender
between cascaded KVM switches this may not work. Please contact Technical
Support to discuss your application.
3. If appropriate, connect audio equipment and serial devices. Connect the
audio cables as follows:
Remote Unit Audio Device
Audio Out Speakers
Audio In (MIC) Microphone
See Appendix E: Audio/Serial Ports: Operation & Multi-Port
Configuration, page 45 for further information.
4. Connect the Primary CATx cable to the INTERCONNECT (1) socket on
the front of the Remote Unit. If required, connect the Secondary CATx
cable to the INTERCONNECT (2) socket on the front of the Remote Unit
(see Figure 3).
5. Connect the 9V power supply to power the unit.
Only use the power supply originally supplied with this
equipment or a manufacturer approved replacement.

16 CATx KVM Extender Range
Figure 2 Remote Unit – rear view
Status Yellow LED* Green LED
OFF
ON
FLASHING
No data transfer with Local
Unit
Remote Unit in Command
Mode
Data transfer with Local Unit
Remote Unit not powered.
Remote Unit powered but no
video found
Remote Unit powered & video
sync found
* Yellow LED active on primary INTERCONNECT socket (Channel 1) only
Figure 3 Remote Unit - front view
Connect to speakers and
microphone. Connect to serial device, such as a touch screen.
SDBX/SA2-1 and SDBX/DA2 only
INTERCONNECT 1 – carries
p
rimar
y
video and data si
g
nals. INTERCONNECT 2 – carries
secondar
y
video si
g
nals.
Connect to
Primary monitor. Connect PS/2 keyboard and mouse.
Connect to
second monitor. Connect supplied 9V PSU.

Installation 17
Local Unit Installation
To install a Local Unit:
1. It is recommended that the PC and other devices are switched off before
connection.
2. Using the supplied CPU KVM cable(s), connect the keyboard, monitor(s)
and mouse connectors on the computer (or KVM switch) to the
corresponding connectors on the Local Unit as shown in Figure 4.
Ensure that you attach the keyboard and mouse connectors to the correct
ports. The keyboard connector is purple; the mouse connector is green.
If your PC does not have a PS/2 mouse port, an active serial converter will
be required - Model No: Mdapt (PS/2).
3. If you have a dual access system, connect the keyboard, mouse and monitor
for the local console to the appropriate ports on the Local Unit. The ports
may also be used to feed into a KVM switch.
4. If you have an audio and serial enabled system, connect the audio cables
between the computer and Local Unit as follows:
Computer Local Unit
Audio Out (green) Audio In
Audio In/Microphone (pink/blue) Audio Out
5. If appropriate, connect the supplied serial cable between the serial port on
the computer and the Local Unit.
6. Connect the CATx cables from the Remote Unit to the corresponding
INTERCONNECT ports (1&2) on the Local Unit.
7. Power up the PC.
The Local Unit normally takes power through the PCs keyboard port. In video
only applications, this connection is not used and so an external PSU is
required. Please contact Technical Support to obtain a suitable power supply.
NEVER CONNECT THE REMOTE UNIT 9V POWER SUPPLY TO A
LOCAL UNIT: YOU MAY DAMAGE THE EXTENDER SYSTEM.

18 CATx KVM Extender Range
Figure 4 Local Unit - rear view
Status Yellow LED Green LED*
OFF
ON
FLASHING
No data transfer with
Remote Unit
Local Unit in Command
Mode
Data transfer with Remote
Unit
Local Unit not powered.
Local Unit powered
Figure 5 Local Unit – front view
INTERCONNECT 1 – carries primary
video and data signals. Connect to
CATx cable from INTERCONNECT 1
port on Remote Unit.
INTERCONNECT 2 – carries
secondary video signals. Connect to
CATx cable from INTERCONNECT 2
port on Remote Unit.
Connect to
Local
monitors.
Connect to audio
ports on computer. Connect to
serial port on
computer.
Audio/Serial Connections
(SDBX/SA2-1 and SDBX/DA2 only)
Input Connections - All models
Connect to computer’s
secondary video
output.
Connect to computer’s PS/2
keyboard and mouse ports
and primary video output.
Connect to Local
PS/2 keyboard and
mouse.
Optional connection
for 5V PSU (not
supplied)
Local Console Connections
(SDBX/D2 and SDBX/DA2 only)