Ihse Draco vario 474 Series User manual

Document 474-Add-on Modules_REV01.00_en
Edition: 2022-08-19
USER MANUAL
Draco vario Add-on Modules
Serie
s 474

Introduction
This manual contains important safety instructions as well as instructions for setting up the product and
operating it.
Read carefully through the User Manual before you switch on the product. Observe
the general
safety instructions (see chapter
2, page 10) and additional instructions in the respective chapters.
Product Identification
The model and serial number of your products are indicated on the bottom of our products. Always refer to this
information when you need to contact your distributor or the support of IHSE GmbH (see chapter 11, page 69).
Trademarks and Trade Names
All trademark and trade names mentioned in this document are acknowledged to be the property of their respective
owners.
Validity of this Manual
This manual applies to all products of the Serie named on the cover page. Differences between the various models
are clearly described. Please note the change log for this manual in chapter 15, page 77.
The manufacturer reserves the right to change specifications, functions or circuitry of the Serie described here
without notice. Information in this manual can be changed, expanded, or deleted without notice. You can find the
current version of the manual in the download area of our website.
Copyright
© 2022. All rights reserved. This manual may not be reproduced in any manner without the prior written consent of
the manufacturer.
Available Documentation
Name Format Description Provision
User Manual PDF Provides an overview of the product together with
technical data and safety instructions.
Contains all instructions required to operate the
product to a basic level.
Download from
website.
Quick Setup Print Provides a quick installation guide and safety
instructions.
Contained in the
scope of delivery.
Contact
IHSE GmbH
Benzstraße 1
88094 Oberteuringen
Germany
phone: [phone]
fax: [phone]
e-mail: [e-mail]
website: https://www.ihse.com

474-Add-on Modules Table of Contents
3
Table of Contents
Table of Contents .......................................................................................................................................................... 3
1Important Information ........................................................................................................................................... 7
1.1Firmware and Software ............................................................................................................................... 7
1.2 Symbols for Warnings and Helpful Information........................................................................................... 7
1.3 Terms and Spellings.................................................................................................................................... 7
1.4 Intended Use ............................................................................................................................................... 8
1.5 Certificates/Directives.................................................................................................................................. 9
1.5.1 North American Regulatory Compliance ................................................................................... 9
1.5.2 EU Declaration of Conformity .................................................................................................... 9
1.5.3 WEEE ........................................................................................................................................ 9
2Safety instructions ..............................................................................................................................................10
3Consignes de Sécurité........................................................................................................................................ 11
4Description ...........................................................................................................................................................12
4.1System Overview ......................................................................................................................................12
4.1.1 Modular Draco vario System ................................................................................................... 12
4.1.2 System Structure and Terms ...................................................................................................12
4.1.3 Embedded Signals...................................................................................................................13
4.1.4 Overview Add-on Modules....................................................................................................... 15
4.1.5 Audio Compatibility ..................................................................................................................16
4.2 Installation Examples ................................................................................................................................17
4.2.1 Single-Head Installation with Add-on Module Audio................................................................17
4.2.2 Dual-Head Installation with Add-on Module USB 2.0 .............................................................. 17
4.3 Product Types ...........................................................................................................................................18
4.3.1 Add-on Modules.......................................................................................................................18
4.3.2 USB 2.0 Stand-alone Modules ................................................................................................20
4.3.3 Fan Cartridge Module .............................................................................................................. 20
4.4 Accessories ...............................................................................................................................................20
4.5 Scope of Delivery ...................................................................................................................................... 21
4.6 Product View .............................................................................................................................................22
4.6.1 Add-on Module USB 2.0 embedded L-/R474-BXE.................................................................. 22
4.6.2 Add-on Module USB 2.0 embedded L-/R474-BXE2................................................................ 22
4.6.3 Add-on Module USB HID L-/R474-BXH ..................................................................................22
4.6.4 Add-on Module Analog Audio (bidirectional) L-/R474-BAX/-BRX ...........................................23
4.6.5 Add-on Module Analog Audio (bidirectional) L-/R474-BAE/-BRE ...........................................23
4.6.6 Add-on Module Analog Audio (bidirectional) L-/R474-BAE2/-BRE2 .......................................23
4.6.7 Add-on Module Analog Audio (bidirectional) L-/R474-BAH..................................................... 24
4.6.8 Add-on Module Analog Audio (bidirectional) L-/R474-BAP ..................................................... 24
4.6.9 Add-on Module Analog Audio (bidirectional) L-/R474-BSX..................................................... 24
4.6.10 Add-on Module Analog Audio (bidirectional) L-/R474-BSS .....................................................25
4.6.11 Add-on Module Analog Audio (bidirectional) L-/R474-BSE .....................................................25
4.6.12 Add-on Module Analog Audio (bidirectional) L-/R474-BSE2...................................................25
4.6.13 Add-on Module Analog Audio (bidirectional) L-/R474-BSH.....................................................26
4.6.14 Add-on Module Digital Audio (unidirectional) L-/R474-BDX....................................................26

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4
4.6.15 Add-on Module Digital Audio (unidirectional) L-/R474-BDD....................................................26
4.6.16 Add-on Module Digital Audio (unidirectional) L-/R474-BDA ....................................................27
4.6.17 Add-on Module Digital Audio (unidirectional) L-/R474-BDE ....................................................27
4.6.18 Add-on Module Digital Audio (unidirectional) L-/R474-BDE2 ..................................................27
4.6.19 Add-on Module Digital Audio (unidirectional) L-/R474-BDH....................................................28
4.6.20 Add-on Module Balanced Analog-Audio L-/R474-BB2X .........................................................28
4.6.21 Add-on Module Balanced Analog-Audio L-/R474-BB2E2 .......................................................28
4.6.22 Add-on Module Balanced Audio L-/R474-BBX........................................................................29
4.6.23 Add-on Module Balanced Audio L-/R474-BBE2......................................................................29
4.6.24 Add-on Module GPIO R474-BGX ............................................................................................30
4.6.25 Add-on Module GPIO R474-BGA ............................................................................................30
4.6.26 Add-on Module GPIO R474-BGE2 ..........................................................................................30
4.6.27 USB 2.0 Stand-alone Module L-/R474-BXUC .........................................................................31
4.6.28 USB 2.0 Stand-alone Module) L-/R474-BXUS ........................................................................32
4.6.29 Fan Cartridge Module 474-MODFAN ......................................................................................32
4.7 Status Indication ........................................................................................................................................33
4.7.1 Add-on Module Digital Audio ...................................................................................................33
4.7.2 Add-on Module Balanced Audio ..............................................................................................34
4.7.3 Add-on Module USB HID .........................................................................................................35
4.7.4 Add-on Module USB 2.0 embedded L-/R474-BXE ..................................................................36
4.7.5 Add-on Modules USB 2.0 embedded L-/R474-BXE2 ..............................................................37
4.7.6 USB 2.0 Stand-alone Modules ................................................................................................38
4.7.7 Fan Cartridge Module ..............................................................................................................39
5Access Options....................................................................................................................................................40
6Installation and Setup .........................................................................................................................................41
6.1 Connecting Add-on Module Analog Audio/Serial RS232..........................................................................41
6.2 Connecting Add-on Module Analog Audio/Serial RS422..........................................................................41
6.3 Connecting Add-on Module Digital Audio .................................................................................................41
6.4 Connecting Add-on Module Balanced Audio ............................................................................................41
6.5 Connecting Add-on Module USB HID .......................................................................................................41
6.6 Connecting Add-on Module PS/2..............................................................................................................42
6.7 Connecting Add-on Module USB 2.0 embedded ......................................................................................42
6.8 Connecting Add-on Module USB 2.0 ........................................................................................................42
6.9 Connecting Add-on Module GPIO.............................................................................................................42
7Configuration .......................................................................................................................................................44
7.1 Configuration File ......................................................................................................................................44
7.2 Parameters ................................................................................................................................................44
7.2.1 Parameters for CPU Extender Modules with Audio Add-on Module .......................................44
7.2.2 Parameters for CON Extender Modules with Audio Add-on Module.......................................45
7.2.3 Parameters for CPU and CON Extender Modules with USB 2.0 embedded Add-on Module.45
7.2.4 Parameters for Fan Cartridge Module 474-MODFAN .............................................................45
7.3 Configuring Parameters for Fan Cartridge Module ...................................................................................46
8Maintenance .........................................................................................................................................................47
8.1 Cleaning ....................................................................................................................................................47
8.2 Replacing or Assembling of Modules in Chassis ......................................................................................47

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5
8.3 Updating the Firmware of Add-on Modules, USB 2.0 Stand-alone Modules and Fan Cartridge Module.47
8.3.1 Updating the Firmware of Add-on Modules ............................................................................. 47
8.3.2 Updating the Firmware of USB 2.0 Stand-alone Modules.......................................................47
8.3.3 Updating the Firmware of the Fan Cartridge Module .............................................................. 48
8.3.4 Updating the Firmware of Analog Add-on Modules................................................................. 48
9Troubleshooting ..................................................................................................................................................49
9.1 General Failures........................................................................................................................................ 49
9.2 Add-on Module, Serial Interface................................................................................................................ 49
9.3 Add-on Module, Analog Audio ..................................................................................................................49
9.4 Add-on Module, Digital Audio....................................................................................................................50
9.5 Add-on Module, USB HID .........................................................................................................................51
9.6 Add-on Module, USB 2.0 embedded ........................................................................................................ 52
9.7 USB 2.0 Stand-alone Module....................................................................................................................53
9.8 Fan Cartridge Module................................................................................................................................54
10 Technical Data .....................................................................................................................................................55
10.1 Interfaces................................................................................................................................................... 55
10.1.1 Mini-USB.................................................................................................................................. 55
10.1.2 USB HID .................................................................................................................................. 55
10.1.3 PS/2 .........................................................................................................................................55
10.1.4 USB 2.0 (transparent)..............................................................................................................56
10.1.5 GPIO ........................................................................................................................................56
10.1.6 RS232 Serial............................................................................................................................56
10.1.7 RS422 Serial............................................................................................................................57
10.1.8 Analog Audio............................................................................................................................58
10.1.9 Digital Audio............................................................................................................................. 59
10.1.10 Balanced Audio........................................................................................................................ 60
10.2 Interconnect Cables ..................................................................................................................................62
10.2.1 Cat X ........................................................................................................................................ 62
10.2.2 Fiber ......................................................................................................................................... 63
10.3 Connector Pinouts..................................................................................................................................... 64
10.3.1 USB, Type A ............................................................................................................................ 64
10.3.2 Mini-USB, Type B .................................................................................................................... 64
10.3.3 PS/2 .........................................................................................................................................64
10.3.4 D-Sub 9 (Serial RS232) DCE, CPU Modules ..........................................................................64
10.3.5 D-Sub 9 (Serial RS232) DTE, CON Modules ..........................................................................64
10.3.6 D-Sub 9 (Serial RS422), CPU Modules................................................................................... 65
10.3.7 D-Sub 9 (Serial RS422), CON Modules ..................................................................................65
10.3.8 D-Sub 9 (GPIO) .......................................................................................................................65
10.3.9 3.5/6.35 mm Stereo Jack Plug................................................................................................. 65
10.3.10 Phoenix Terminal Block, 6-pole, CPU Modules.......................................................................66
10.3.11 Phoenix Terminal Block, 6-pole, CON Modules ......................................................................66
10.3.12 RCA (Cinch)............................................................................................................................. 66
10.3.13 Mini-XLR .................................................................................................................................. 66
10.3.14 Toslink...................................................................................................................................... 66
10.4 Current Draw and Power Consumption (per Function Part) .....................................................................67

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6
10.5 Dimensions Add-on Modules ....................................................................................................................67
10.6 Weight .......................................................................................................................................................68
10.6.1 Add-on Modules .......................................................................................................................68
10.6.2 USB 2.0 Stand-alone Modules ................................................................................................68
10.6.3 Fan Cartridge Module ..............................................................................................................68
10.7 Environmental Conditions and Emissions.................................................................................................68
10.8 MTBF.........................................................................................................................................................68
11 Technical Support ...............................................................................................................................................69
11.1 Support Checklist ......................................................................................................................................69
11.2 Shipping Checklist .....................................................................................................................................69
12 Glossary ...............................................................................................................................................................70
13 Index......................................................................................................................................................................72
14 Table of Figures ...................................................................................................................................................75
15 Change Log ..........................................................................................................................................................77

474-Add-on Modules Important Information
7
1 Important Information
1.1 Firmware and Software
The information in this manual refers to the latest extender firmware available at the date of manual release. Please
refer to the change log (see chapter 15, page 77) for user manual updates.
1.2 Symbols for Warnings and Helpful Information
The meaning of the symbols used for warnings and helpful information in this manual is described below:
WARNING
WARNING indicates a hazardous situation which, if not avoided, could result in death or serious injury.
CAUTION
CAUTION, used with the safety alert symbol, indicates a hazardous situation which, if not avoided, could result in
minor or moderate injury.
NOTICE
NOTICE identifies information, if not observed, endangers the Functionality of your device or the security of your
data.
This symbol indicates instructions for procedures recommended by the manufacturer for an effective utilization of
the device potential.
This symbol indicates information about special features on the device or when using device and Function
variants.
1.3 Terms and Spellings
Uniform terms and spellings are used in this manual for better readability or easier assignment.
The following spellings are used for products and system descriptions:
Term Description
Source Computer, graphics card (USB, video, audio, data)
Sink Console (monitor, keyboard, mouse, video, audio, data)
CPU Unit Encoder to connect to the source.
CON Unit Decoder to connect at the peripherals.
The following text formats are used for keyboard commands:
Keyboard command Description
key Key on the keyboard
key + key Press keys simultaneously
key, key Press keys successively
2x key Press key quickly, twice in a row (like a mouse double-click)

Important Information 474-Add-on Modules
8
The following text formats are used for, e.g., descriptions of editing files or updating firmware:
Keyboard command Description
Config.txt
E.g., file name
#CFG
E.g., file content
1.4 Intended Use
Add-on Modules
Add-on modules are only intended for use in conjunction with extender modules and for installation in 474-BODY
chassis. Add-on modules are used to embed and de-embed signals and data, e.g., audio or USB HID signals or
USB 2.0 data. All signals and data are transferred via interconnection between extender modules (CPU Units and
CON Units).
USB 2.0 Stand-alone Modules
USB 2.0 stand-alone modules are used to increase the distance between sources and associated consoles. The
transmission range of USB 2.0 data can be extended using Cat X cables or fiber optic cables.
USB 2.0 stand-alone modules with Cat X connections are unsuitable for connection between buildings. Use a fiber
optic-based extender module instead.
USB 2.0 stand-alone modules with fiber connections can also be used with applications in environments which are
subject to electromagnetic interference.
Fan Cartridge Module
The fan cartridge module is used for ventilation of 474-BODY chassis.

474-Add-on Modules Important Information
9
1.5 Certificates/Directives
1.5.1 North American Regulatory Compliance
The "equipment" referred to in the "North American Regulatory" chapter consists of a fully assembled modular
system and includes the chassis, extender modules and possibly add-on modules along with supplied cables. For
more details about the modular system, please refer to chapter 4.1.1, page 12.
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.
Changes or modifications not expressly approved by the party responsible for compliance could void the user’s
authority to operate the equipment.
Shielded 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.
All power supplies are certified to the relevant major international safety standards.
1.5.2 EU Declaration of Conformity
Please find the EU Declaration of Conformity for the device under:
www.ihse.com/eu-declaration-of-conformity
A copy of the original, product-specific EU Declaration of Conformity can be provided upon request. For contact
details, see page 2 of this manual.
1.5.3 WEEE
The manufacturer complies with the EU Directive 2012/19/EU on the prevention of waste electrical and electronic
equipment (WEEE).
The device labels carry a respective marking.

Safety instructions 474-Add-on Modules
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2 Safety instructions
To ensure reliable and safe long-term operation of your device, please note the following guidelines:
Read this user manual carefully.
Read the manual for the chassis in which the add-on modules are installed. Also read the extender module
manual for the extender modules with which you are using the add-on module. The instructions, safety and
warning instructions contained in these manuals must also be observed.
Only use the device according to this user manual. Failure to follow the instructions described can result in
personal injury, damage to the device, or endanger the security of your data.
Take any required ESD precautions.
Installation Location
While operating the device can get warm. Damage to the device can occur in a damp environment.
Use the device only in dry, indoor environments.
Use the device only in a room with adequate ventilation.
Place the device at a sufficient distance from the operator.
Connection
Check the device for visible damage before connecting it.
Only connect the device if the device and the ports are not damaged.
Only use cables supplied by the manufacturer or cables that comply with the technical specification, see
chapter 10, page 55.
Only connect the device to KVM devices using the interconnecting cable - not to other devices, particularly not to
telecommunications or network devices.

474-Add-on Modules Consignes de Sécurité
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3 Consignes de Sécurité
Pour garantir un fonctionnement fiable et sûr de votre périphérique à long terme, veuillez respecter les directives
suivantes :
Lisez attentivement ce manuel d'utilisation.
Lisez le manuel d'utilisation du châssis dans lequel les modules d'extension sont installés. Les instructions, les
consignes de sécurité et les avertissements qu'il contient doivent également être respectés.
N'utilisez le périphérique que conformément à ce manuel d'utilisation. Le non-respect des instructions décrites
peut entraîner des blessures corporelles, endommager le périphérique ou mettre en danger la sécurité de vos
données
Prenez toutes les précautions nécessaires contre les décharges électrostatiques.
Emplacement de l'installation
Pendant le fonctionnement, le périphérique peut chauffer. Le périphérique peut être endommagé dans un
environnement humide.
N'utilisez le périphérique que dans un environnement sec et intérieur.
N'utilisez le périphérique dans un lieu correctement ventilée.
Placez le périphérique à une distance suffisante de l'opérateur.
Connexion
Avant de connecter le périphérique et les unités d'alimentation, vérifiez qu'ils ne présentent pas de dommages
visibles.
Seulement connectez le périphérique que si le périphérique et les ports ne sont pas endommagés.
Seulement utilisez des câbles fournis par le fabricant ou des câbles conformes aux spécifications techniques,
voir chapitre 10, page 55.
Ne connectez le périphérique qu'à des périphériques KVM à l'aide du câble d'interconnexion - pas à d'autres
périphériques, en particulier pas à des périphériques de télécommunications ou de réseau.

Description 474-Add-on Modules
12
4 Description
4.1 System Overview
4.1.1 Modular Draco vario System
The Draco vario chassis are compatible with all available Draco vario extender modules and add-on modules
(CPU Unit and CON Unit), CWDM modules, repeaters, fan modules, and SNMP modules for standalone or rack-
mounted configuration. The flexible, modular system allows custom integration of equipment to meet specific
installation requirements. Chassis are available in sizes for 2, 4, 6 and 21 individual modules.
Therefore, please first select a chassis, then select one or more extender module(s), then select one or more add-on
module(s) if required.
The Draco System Designer, available on the IHSE website at https://dsd.ihse.com, will help you with system
configuration.
For more information, please refer to
the manual 474
-BODY.
Described in this manual. For more information,
please refer to the
respective extender module
manual.
4.1.2 System Structure and Terms
A KVM pair consists of 2 KVM extender modules, each with at least one CPU extender module and at least one CON
extender module. The various extender modules are installed respectively in a Draco vario chassis (2-slot, 4-slot, 6-
slot, or 21-slot) on the CPU side (CPU Unit) and console side (CON Unit). With 2-slot, 4-slot and 6-slot chassis add-
on modules are placed above an extender, with 21-slot chassis, add-on modules are placed to the right of an
extender module. An add-on module will not work if it is mounted above an empty slot.
The assignment of add-on module and USB 2.0 stand-alone modules can be recognized by the article number:
•Add-on module/USB 2.0 stand-alone module for the CPU Unit: L4XX (L = Local)
•Add-on module/USB 2.0 stand-alone module for the CON Unit: R4XX (R = Remote)

474-Add-on Modules Description
13
An add-on module can contain up to 2 independent function parts (part A and B), one on the left and one on the right,
see Fig. 1.
Fig. 1 KVM Extender pair with CPU Unit and CON Unit
1 KVM Extender pair
2
Add-on module/USB 2.0 stand-alone module (optional)
3
Extender module
4
Part A of the CPU add-on module (optional)
5
Part B of the CPU add-on module (optional)
6
Chassis
7
CPU Unit
8 Interconnect cable
9 CON Unit
10 Part A of the CON add-on module (optional)
11 Part B of the CON add-on module (optional)
12 Chassis
13 Extender module
14 Add-on module/USB 2.0 stand-alone module (optional)
4.1.3 Embedded Signals
If optional add-on modules are used, signals such as e.g., audio (analog, serial, digital or symmetrical) or USB 2.0
are transferred to the underlying extender module and embedded as well as transmitted via the link connection to the
CON Unit. The embedded signals are extracted in the CON Unit, transferred to the add-on module above and output
there separately.
Example with optional Add-on Module L- /R474-BAE
Fig. 2 Embedding/de-embedding of signals in a KVM extender pair (example L- /R474-BAE)
1 Source
2
Video signal with embedded audio signal
3
USB HID signal
4
Embedding the audio and USB 2.0 signal
5
Interconnect cable
6
De-embedding the audio and USB 2.0 signal
7
USB HID signal
8 Video signal with embedded audio signal
9 Sink (console with monitor, keyboard, and mouse)
10 Audio signal
11 USB 2.0 signal
12 Audio signal, de-embedded
13 USB 2.0 signal, de-embedded
1
2
3
14
13
6
7
12
9
4
5
10
11
8
5
10
11
4
2
3
1
12
13
6
7
9
8

Description 474-Add-on Modules
14
Example with optional Add-on Module R474-BDX
To output an audio signal with separate speakers, there is only the optional audio add-on module for the CON Unit
required.
Fig. 3 De-embedding of audio signals in a KVM extender pair (example R474-BDX)
1 Source
2
Video signal with embedded audio
3
USB HID signal
4
Interconnect cable
5
De-embedding digital audio signal
6 USB HID signal
7
Video signal with embedded audio
8
Sink (console with monitor, keyboard, mouse, and
speakers)
9
De-embedded digital audio signal
4
2
3
1
9
5
6
8
7

474-Add-on Modules Description
15
4.1.4 Overview Add-on Modules
This section illustrates an overview of the available types of add-on modules for KVM extender modules.
Fig. 4 Overview add-on modules

Description 474-Add-on Modules
16
4.1.5 Audio Compatibility
The audio compatibility depends on the combination of extender modules and add-on modules, see following figure.
HDMI
1.3: 5.1-Channel LPCM digital audio, embedded/
HDMI
2.0: 2-Channel LPCM digital audio, embedded
DP
1.1: 5.1-Channel LPCM digital audio, embedded/ DP 1.2:
2
-Channel LPCM digital audio, embedded
5.1
-Channel PCM digital audio
Balanced audio
2
-Channel analog audio + RS232 (19.2 kBd)
2
-Channel analog audio + RS422 (115.2 kBd)
2
-Channel analog audio + RS232 (115.2 kBd)
HDMI
1.3: 5.1-Channel LPCM digital audio, embedded/
HDMI
2.0: 2-Channel LPCM digital audio, embedded
Fig. 5
Audio compatibility of extender modules and add-on modules
* Extender modules of HDMI 1.3 Serie 481/491 and DP 1.1 Serie 483/493 support 5.1 channel digital audio whereas
extender modules of HDMI 2.0 Serie 495 and DP 1.2 Serie 490 only support 2-channels
Requires an audio add-on module on the CPU Unit or the CON Unit
True embedded audio
Connection is representing audio content only
Analog audio add-on modules are not necessarily audio compatible to each other since they use difference protocols.
The following table lists the audio compatibility (X) and non-audio compatibility (-) for analog audio add-on modules:
R474-BAX
RS232 @ 19.2 kBd
R474-BRX
RS232 @ 115 kBd
L474-BAX
RS232 @ 19.2 kBd X -
L474-BRX
RS232 @ 115 kBd - X
L474-BSX
RS422 @ 115 kBd - X
CPU
CON
Analog
Audio
RS422
Analog
Audio
RS232
SDI SDI
Analog
Audio
RS232
Analog
Audio
RS422

474-Add-on Modules Description
17
4.2 Installation Examples
This section illustrates typical installations of KVM extender pairs.
The CPU Unit is connected directly to the source using the supplied cables. The CON Unit is connected to the
console. The CPU Unit and the CON Unit communicate with each other through the interconnect cables.
4.2.1 Single-Head Installation with Add-on Module Audio
Fig. 6 Installation example (Single-Head with add-on module audio)
1 Source
2
CPU Unit
3
Interconnect cable
4
CON Unit
5 Console (monitor, keyboard, mouse)
6 Audio sink (optional, only with devices with add-on
module analog audio/Serial option, digital audio, or
balanced analog audio
4.2.2 Dual-Head Installation with Add-on Module USB 2.0
Fig. 7 Installation example (Dual-Head with add-on module USB 2.0)
1 Source
2
CPU Unit
3
Interconnect cable
4 Console (monitor, keyboard, mouse)
5 Second monitor (optional, only with Dual-Head
extender modules)
6 USB 2.0 devices (optional, only with add-
on modules
USB 2.0)

Description 474-Add-on Modules
18
4.3 Product Types
4.3.1 Add-on Modules
Add-on Modules USB 2.0 embedded and USB HID
Part. No. Description
L474-BXE Add-on module with 2x USB 2.0 embedded (up to 36 Mbit/s)
R474-BXE
L474-BXE2 Add-on module with 4x USB 2.0 embedded (up to 50/100 Mbit/s)
R474-BXE2
L474-BXH Add-on module with 2x USB HID, Hot Key function available (R474-BXH)
R474-BXH
Add-on Modules Analog Audio (bidirectional), RS232 (serial)
Part. No. Description
L474-BAX Add-on module with analog audio (bidirectional) and RS232 (serial)
R474-BAX
L474-BAE Add-on module with analog audio (bidirectional), RS232 (serial) and
2x USB 2.0 embedded (up to 36 Mbit/s)
R474-BAE
L474-BAE2 Add-on module with analog audio (bidirectional), RS232 (serial) and
4x USB 2.0 embedded (up to 50/100 Mbit/s)
R474-BAE2
L474-BAH Add-on module with analog audio (bidirectional), RS232 (serial) and
2x USB HID, Hot Key function available (R474-BAH)
R474-BAH
L474-BAP Add-on module with analog audio (bidirectional), RS232 (serial) and
PS/2
R474-BAP
L474-BRX Add-on module with analog audio (bidirectional) and RS232 up to 115 k (serial)
R474-BRX
L474-BRE Add-on module with analog audio (bidirectional), RS232 up to 115 k (serial) and 2x
USB 2.0 embedded (up to 36 Mbit/s)
R474-BRE
L474-BRE2 Add-on module with analog audio (bidirectional), RS232 up to 115 k (serial) and 4x
USB 2.0 embedded (up to 50/100 Mbit/s)
R474-BRE2

474-Add-on Modules Description
19
Add-on Modules Analog Audio (bidirectional), RS422 (serial)
Part. No. Description
L474-BSX Add-on module with analog audio (bidirectional) and RS422 (serial)
R474-BSX
L474-BSE Add-on module with analog audio (bidirectional), RS422 (serial) and
2x USB 2.0 embedded (up to 36 Mbit/s)
R474-BSE
L474-BSE2 Add-on module with analog audio (bidirectional), RS422 (serial) and
4x USB 2.0 embedded (up to 50/100 Mbit/s)
R474-BSE2
L474-BSH Add-on module with analog audio (bidirectional), RS422 (serial) and
2x USB HID, Hot Key function available (R474-BSH)
R474-BSH
L474-BSS Add-on module with 2x analog audio (bidirectional) and 2x RS422 (serial)
R474-BSS
Add-on Modules Digital Audio (unidirectional)
Part. No. Description
L474-BDX Add-on module with digital audio (unidirectional)
R474-BDX
L474-BDE Add-on module with digital audio (unidirectional) and
2x USB 2.0 embedded (up to 36 Mbit/s)
R474-BDE
L474-BDE2 Add-on module with digital audio (unidirectional) and
4x USB 2.0 embedded (up to 50/100 Mbit/s)
R474-BDE2
L474-BDH Add-on module with digital audio (unidirectional) and
2x USB HID, Hot Key function available (R474-BDH)
R474-BDH
L474-BDA Add-on module with digital audio (unidirectional), analog audio (bidirectional) and RS232
R474-BDA
L474-BDD Add-on module with 2x digital audio (unidirectional)
R474-BDD
Add-on Modules Balanced Audio
Part. No. Description
L474-BBX Add-on module with balanced analog audio (unidirectional)
R474-BBX
L474-BBE2 Add-on module with balanced analog audio (unidirectional) and
4x USB 2.0 embedded (up to 50/100 Mbit/s)
R474-BBE2
L474-BB2X Add-on module with balanced analog audio (unidirectional) (until 12/2021)
R474-BB2X
L474-BB2E2 Add-on module with balanced analog audio (unidirectional) and
4x USB 2.0 embedded (up to 50/100 Mbit/s) (until 12/2021)
R474-BB2E2
Add-on Modules GPIO
Part. No. Description
R474-BGX Add-on module for CON Units with up to 8 configurable GPIO in-/outputs

Description 474-Add-on Modules
20
Part. No. Description
R474-BGA Add-on module for CON Units with up to 8 configurable GPIO in-/outputs,
with analog audio (bidirectional) and RS232 (serial)s
R474-BGE2 Add-on module for CON Units with up to 8 configurable GPIO in-/outputs and 4x USB 2.0
embedded (up to 50/100 Mbit/s)
4.3.2 USB 2.0 Stand-alone Modules
Part. No. Description
L474-BXUC Add-on module with 4x USB 2.0 (up to 480 Mbit/s), Cat X
(Base: ICRON 2300 Core)
R474-BXUC
L474-BXUS Add-on module with 4x USB 2.0 (up to 480 Mbit/s), Single-Mode Fiber
(Base: ICRON 2300 Core)
R474-BXUS
4.3.3 Fan Cartridge Module
Part. No. Description
474-MODFAN Fan cartridge module, retrofittable for all Draco vario chassis
4.4 Accessories
Part. No. Description Interface
455-CK Duplex audio cable 2 m (3.5 mm) Audio
455-CR Cinch cable 2.5 m Audio
455-CT TOSLINK cable 2.0 m Audio
247-U1 USB cable Type A-B, 1.8 m USB/USB HID
247-U2 USB cable Type A-B, 3.0 m USB/USB HID
436-USB20 USB extension cable Type A-A, 3.0 m USB/USB HID
024-3A PS/2 cable 1.8 m USB/USB HID
DC-DB9-MF-018 RS-232/422 data cable DB9 male/female, 1.8 m Serial
476-CTRL4-GPIO Remote Control for Draco vario GPIO module with 4 push buttons/LEDs
(cable length approx. 3.0 m)
GPIO