LD Systems DIO 44 Manuel utilisateur

USER´S MANUAL

BEDIENUNGSANLEITUNG

MANUEL D´UTILISATION

MANUAL DE USUARIO

INSTRUKCJA OBSŁUGI

MANUALE D´USO

DIO 22 / 44

2X2 / 4X4 INPUT/OUTPUT DANTE INTERFACE

LDDIO22 / LDDIO44

CONTENTS / INHALTSVERZEICHNIS / CONTENU / CONTENIDO / TREŚĆ / CONTENUTO

ENGLISH

ABOUT THIS MANUAL 4

INTENDED USE 4

EXPLANATIONS OF TERMS AND SYMBOLS 4

SAFETY INSTRUCTIONS 5

NOTES FOR INDOOR INSTALLATION UNITS 7

PACKAGING CONTENT 8

INTRODUCTION 8

CONNECTIONS, OPERATING

AND DISPLAY ELEMENTS 10

CONNECTION EXAMPLES 14

TERMINAL BLOCK CONNECTIONS 18

DANTE® CONTROLLER 19

UNDER / ON-TABLE MOUNTING 20

CARE, MAINTENANCE AND REPAIR 20

DIMENSIONS 21

TECHNICAL DATA 22

DISPOSAL 24

MANUFACTURER’S DECLARATIONS 25

DEUTSCH

INFORMATIONEN ZU DIESER

BEDIENUNGSANLEITUNG 26

BESTIMMUNGSGEMÄSSER GEBRAUCH 26

BEGRIFFS- UND SYMBOLERKLÄRUNGEN 26

SICHERHEITSHINWEISE 27

HINWEISE FÜR INDOOR-INSTALLATIONSGERÄTE 30

LIEFERUMFANG 30

EINLEITUNG 30

ANSCHLÜSSE, BEDIEN- UND ANZEIGEELEMENTE 31

ANSCHLUSSBEISPIELE 36

KLEMMLEISTENANSCHLÜSSE 40

DANTE® CONTROLLER 40

UNTER- / AUFTISCHMONTAGE 42

PFLEGE, WARTUNG UND REPARATUR 42

ABMESSUNGEN 43

TECHNISCHE DATEN 44

ENTSORGUNG 46

HERSTELLERERKLÄRUNGEN 46

FRANCAIS

INFORMATIONS SUR CE MODE D‘EMPLOI 47

UTILISATION RÉGLEMENTÉE 47

EXPLICATIONS DES TERMES ET DES SYMBOLES 47

CONSIGNES DE SÉCURITÉ 48

CONTENU DU CARTON 51

INTRODUCTION 51

CONNECTEURS, UTILISATION ET INDICATEURS 53

EXEMPLES DE CONNEXION 58

CÂBLAGE DES CONNECTEURS EUROBLOCK 62

LOGICIEL DANTE® CONTROLLER 63

MONTAGE SOUS / SUR TABLE 64

ENTRETIEN, MAINTENANCE ET RÉPARATIONS 64

DIMENSIONS 65

CARACTÉRISTIQUES TECHNIQUES 66

MISE EN DÉCHETTERIE 68

DÉCLARATIONS DU FABRICANT 68

ESPAÑOL

INFORMACIÓN SOBRE ESTAS

INSTRUCCIONES DE USO 69

USO CONFORME A LA NORMATIVA 69

EXPLICACIONES DE TÉRMINOS Y SíMBOLOS 69

INSTRUCCIONES DE SEGURIDAD 70

CONTENIDO DEL EMBALAJE 73

INTRODUCCIÓN 73

CONEXIONES, MANDOS E INDICADORES 75

EJEMPLOS DE CONEXIÓN 79

CONEXIONES DEL BLOQUE DE TERMINALES 83

DANTE® CONTROLLER 84

MONTAJE BAJO/SOBRE LA MESA 85

CUIDADO, MANTENIMIENTO Y REPARACIÓN 85

DIMENSIONES 86

DATOS TÉCNICOS 87

DISPOSICIÓN 89

DECLARACIONES DEL FABRICANTE 89

POLSKI

INFORMACJE DOTYCZĄCE NINIEJSZEJ

INSTRUKCJI OBSŁUGI 90

STOSOWANIE ZGODNIE Z PRZEPISAMI 90

OBJAŚNIENIA TERMINÓW I SYMBOLI 90

INSTRUKCJE BEZPIECZEŃSTWA 91

ZAWARTOŚĆ OPAKOWANIA 94

WPROWADZENIE 94

PRZYŁĄCZA, ELEMENTY OBSŁUGI I WSKAŹNIKI 96

PRZYKŁADY POŁĄCZEŃ 101

POŁĄCZENIA TERMINALI ZACISKOWYCH 105

KONTROLER DANTE 106

MONTAŻ POD / NA BLACIE 107

PIELĘGNACJA, KONSERWACJA I NAPRAWA 107

WYMIARY 108

DANE TECHNICZNE 109

DYSPOZYCJA 111

OŚWIADCZENIA PRODUCENTA 111

ITALIANO

INFORMAZIONI SU QUESTE ISTRUZIONI

PER L‘USO 112

UTILIZZO IN CONFORMITÀ ALLE NORMATIVE 112

SPIEGAZIONI DI TERMINI E SIMBOLI 112

ISTRUZIONI DI SICUREZZA 113

CONTENUTO DELL’IMBALLAGGIO 116

INTRODUZIONE 116

CONNESSIONI, ELEMENTI DI COMANDO

E DI VISUALIZZAZIONE 118

ESEMPI DI CONNESSIONE 123

COLLEGAMENTI DELLA MORSETTIERA 127

DANTE® CONTROLLER 128

MONTAGGIO SOTTO/SU TAVOLO 129

CURA, MANUTENZIONE E RIPARAZIONE 129

DIMENSIONI 130

DATI TECNICI 131

SMALTIMENTO 133

DICHIARAZIONI DEL PRODUTTORE 133

4

ENGLISH

YOU MADE THE RIGHT CHOICE!

This device was developed and manufactured under high quality requirements to ensure many

years of trouble-free operation. This is what LD Systems stands for with its name and many years

of experience as a manufacturer of high-quality audio products. Please read these operating

instructions carefully so that you can quickly and optimally use your new LD Systems product.

You can find more information about LD Systems on our website WWW.LD-SYSTEMS.COM

ABOUT THIS MANUAL

• Read the safety instructions and the entire manual carefully before commissioning.

• Observe the warnings on the unit and in the operating instructions.

• Always keep the operating instructions within reach.

• If you sell or pass on the appliance, be sure to hand over these operating instructions as well,

as they are an essential part of the product.

INTENDED USE

The product is a device for professional audio installations!

The product has been developed for professional use in the field of audio

installation and is not suitable for use in households! Furthermore, this product is only intended

for qualified users with expertise in handling audio installations! Use of the product outside the

specified technical data and operating conditions is considered improper use! Liability for

damage and third-party damage to persons and property due to inappropriate use is excluded!

The product is not suitable for:

• People (including children) with reduced physical, sensory or mental abilities or lack of

experience and knowledge.

• Children (Children must be instructed not to play with the device).

EXPLANATIONS OF TERMS AND SYMBOLS

1. DANGER: The word DANGER, possibly in combination with a symbol, indicates immediately

dangerous situations or conditions for life and limb.

2. WARNING: The word WARNING, possibly in combination with a symbol, indicates potentially

dangerous situations or conditions for life and limb

3. CAUTION: The word CAUTION, possibly in combination with a symbol, is used to indicate

situations or conditions that may lead to injury.

4. ATTENTION: The word ATTENTION, possibly in combination with a symbol, refers to situations or

states that can lead to damage to property and/or the environment.

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This symbol indicates hazards that can cause an electric shock.

This symbol indicates danger spots or dangerous situations.

This symbol indicates danger from hot surfaces.

This symbol indicates danger from high volumes.

This symbol indicates supplementary information on the operation of the product.

This symbol denotes a device that does not contain any user-serviceable parts.

This symbol indicates a device that may only be used in dry rooms.

SAFETY INSTRUCTIONS

DANGER:

1. Do not open or modify the device.

2. If your device is no longer working properly, liquids or objects have gotten inside the

device, or the device has been damaged in any other way, switch it off immediately

and disconnect it from the power supply. This device may only be repaired by

authorized specialist personnel.

3. For devices of protection class 1, the protective conductor must be connected

correctly. Never interrupt the protective conductor. Protection class 2 devices do

not have a protective conductor.

4. Ensure that live cables are not kinked or otherwise mechanically damaged.

5. Never bypass the device fuse.

WARNING:

1. The device must not be put into operation if it shows obvious signs of damage.

2. The device may only be installed in a voltage-free state.

3. If the power cord of the device is damaged, the device must not be put into operation.

4. Permanently connected power cords may only be replaced by a qualified person.

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DANGER:

1. Do not operate the device if it has been exposed to severe temperature fluctuations

(e.g. after transport). Humidity and condensation could damage the device.

Do not switch on the device until it has reached the ambient temperature.

2. Make sure that the voltage and frequency of the mains supply correspond to the

values indicated on the device. If the device has a voltage selector switch, do not

connect the device until this is set correctly. Only use suitable power cords.

3. To disconnect the device from the mains at all poles, it is not enough to press the

on/off switch on the device.

4. Ensure that the fuse used corresponds to the type printed on the device.

5. Make sure that appropriate measures against overvoltage (e.g. lightning) have

been taken.

6. Note the specified maximum output current on devices with a power out connection.

Make sure that the total power consumption of all connected devices does not

exceed the specified value.

7. Only replace pluggable power cords with original cables.

DANGER:

1. Danger of suffocation! Plastic bags and small parts must be kept out of the reach of

people (including children) with reduced physical, sensory or mental abilities.

2. Danger from falling! Make sure the device is installed securely and cannot fall.

Only use suitable tripods or attachments (especially for fixed installations).

Make sure accessories are properly installed and secured. Make sure that the

applicable safety regulations are observed.

WARNING:

1. Only use the device in the manner intended.

2. Only operate the device with the accessories recommended and intended by the

manufacturer.

3. During installation, observe the safety regulations applicable in your country.

4. After connecting the unit, check all cable routes to avoid damage or accidents,

e.g. due to tripping hazards.

5.

Be sure to observe the specified minimum distance to normally flammable materials!

Unless this is explicitly stated, the minimum distance is 0.3 m.

ATTENTION:

1. In the case of moving components such as mounting brackets or other moving

components, there is a possibility of jamming.

2. In the case of units with motor-driven components, there is a risk of injury from the

movement of the unit. Sudden movements of the equipment can lead to startle

reactions.

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DANGER:

1. Do not install or operate the device near radiators, heat registers, stoves or other

heat sources. Make sure that the device is always installed in such a way that it is

sufficiently cooled and cannot overheat.

2. Do not place any sources of ignition such as burning candles near the device.

3. Ventilation openings must not be covered and fans must not be blocked.

4. Use the original packaging or packaging provided by the manufacturer for transport.

5. Avoid shock or shock to the device.

6. Observe the IP protection class and the environmental conditions such as tempera-

ture and humidity according to the specification.

7. Devices can be continuously developed. In the event of deviating information on

operating conditions, performance or other device properties between the operating

instructions and the device labeling, the information on the device always has priority.

8. The device is not suitable for tropical climate zones and for operation above 2000 m

above sea level.

ATTENTION:

Connecting signal cables can result in significant noise interference. Make sure that

devices connected to the output are muted during plugging. Otherwise, noise levels

can cause damage.

ATTENTION HIGH VOLUMES WITH AUDIO PRODUCTS!

This device is intended for professional use.

The commercial operation of this device is subject to the applicable national regulations

and guidelines for accident prevention.

Hearing damage due to high volumes and continuous exposure: The use of this product

can generate high sound pressure levels (SPL) which can cause hearing damage. Avoid

exposure to high volumes.

NOTES FOR INDOOR INSTALLATION UNITS

1. Units for installation applications are designed for continuous operation.

2. Equipment for indoor installation is not weather-resistant.

3. Surfaces and plastic parts of installation equipment can also age, e.g. due to UV

radiation and temperature fluctuations. As a rule, this does not lead to functional

restrictions.

4. With permanently installed devices, the accumulation of impurities, e.g. dust, is to

be expected. Always observe the care instructions.

5. Unless expressly stated on the unit, the units are intended for installation heights

of less than 5 m.

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PACKAGING CONTENT

Remove the product from the packaging and remove all packaging material.

Please check the completeness and integrity of the delivery and notify your distribution partner

immediately after purchase if the delivery is not complete or if it is damaged.

The package of LDDIO22 includes:

• 1 x DIO 22 Dante Break Out Box

• 1 set of terminal blocks

• 1 x mounting set for on-table or under-table installation

• 1 set of rubber feet (pre-assembled)

• User manual

The package of LDDIO44 includes:

• 1 x DIO 44 Dante Break Out Box

• 1 set of terminal blocks

• 1 x mounting set for on-table or under-table installation

• 1 set of rubber feet (pre-assembled)

• User manual

INTRODUCTION

DIO22

Part of the TICA®series, the DIO 22 is a two input and output Dante interface that delivers the

capabilities that audio and AV professionals really need. Equipped with two balanced mic/line

inputs and line outputs with four-step gain settings and 24V phantom power on each input.

Signal presence lights on each channel speed installation and fault-finding.

The DIO 22 is easy to configure from the front panel and can then be locked to prevent tampering.

Power from any PoE+ network switch or use the optional, external power supply. Since it comes

with two Dante networked ports, you can daisy chain devices together. It also works as a PoE+

injector: if you use the external power supply, you can power one further networked device in

the chain.

Its tiny form factor (106 x 44 x 222 mm) and included mounting plates allow it to be installed

discreetly behind screens or under tables. Alternatively, it fits into 1/3 19 inch rack. Use the optional

rack tray to slot up to three TICA® Series products alongside each other and build a system to

your exact requirements, using minimal rack space.

Terminal block connections on the analogue inputs and outputs make wiring easy.

The perfect solution for professional installers wanting to interface into Dante equipment.

Dante Domain Manager and AES 67 compliant.

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DIO44

Part of the TICA®series, the DIO 44 is a four input and output Dante interface that delivers the

capabilities that audio and AV professionals really need. Equipped with four balanced mic/line

inputs and line outputs with four-step gain settings and 24V phantom power on each input.

Signal presence lights on each channel speed installation and fault-finding.

The DIO 44 is easy to configure from the front panel and can then be locked to prevent tampering.

Power from any PoE+ network switch or use the optional, external power supply. Since it comes

with two Dante networked ports, you can daisy chain devices together. It also works as a PoE+

injector: if you use the external power supply, you can power one further networked device in

the chain.

Its tiny form factor (106 x 44 x 222,mm) and included mounting plates allow it to be installed

discreetly behind screens or under tables. Alternatively, it fits into 1/3 19 inch rack. Use the optional

rack tray to slot up to three TICA® DIO series products alongside each other and build a system to

your exact requirements, using minimal rack space.

Terminal block connections on the analogue inputs and outputs make wiring easy.

The perfect solution for professional installers wanting to interface into Dante equipment.

Dante Domain Manager and AES 67 compliant.

FEATURES

DIO22

• Two input and output Dante interface

• Connect microphones or line level inputs

• Four-step gain control and 24V phantom power per channel

• Terminal blocks for all analogue connections

• Signal indicators on each channel

• Use PoE or an external power supply

• Use as a PoE injector to power another networked device

• Daisy-chain Dante devices together

• Easy front panel configuration and user lock

DIO44

• Four input and output Dante interface

• Connect microphones or line level inputs

• Four-step gain control and 24V phantom power per channel

• Terminal blocks for all analogue connections

• Signal indicators on each channel

• Use PoE or an external power supply

• Use as a PoE injector to power another networked device

• Daisy-chain Dante devices together

• Easy front panel configuration and user lock

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CONNECTIONS, OPERATING AND DISPLAY ELEMENTS

DIO 22

5

4 3

1 2

6

DIO 44

5

4 3

1 2

6

1 TERMINAL BLOCK CONNECTION FOR POWER SUPPLY

Terminal block connection for the device's power supply. To avoid damage to the unit, please use

only the original mains adapter (mains adapter optionally available).

Alternative power supply:

Ethernet switch or PoE injector with PoE+ (Power over Ethernet plus) or better.

2 STRAIN RELIEF

Use the strain relief for the flexible cable of the power supply unit to protect the device's power

terminal block connector and the power supply terminal block from damage and to prevent the

terminal block from being pulled out unintentionally.

3 INPUT

Analogue audio inputs with balanced terminal block connectors suitable for both line and

microphone levels. A 24 volt phantom power supply can be switched on. The poles +, -

and G are intended for the balanced input signal (suitable for unbalanced cabling).

Terminal blocks are included in the packaging content.

4 OUTPUT

Analogue audio outputs with balanced terminal block connections. The poles +, - and G are

intended for the balanced output signal (suitable for unbalanced cabling). Terminal blocks are

included in the packaging content. If there is no audio signal at the line outputs OUTPUT, they

are automatically muted after some time. If an audio signal is detected, the mute function is

automatically deactivated.

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5 PSE+DATA (Power Sourcing Equipment)

Dante® interface with RJ45 socket for connecting further Dante® devices to the Dante® network.

If the DIO 22 or DIO 44 is supplied with power via an external power supply unit, another DIO 22 or

DIO 44 can be supplied with power via PoE (see connection example 2).

6 PD+DATA (Powered Device)

Dante® interface with RJ45 socket for connecting the DIO 22 or DIO 44 to a Dante® network.

The DIO 22 or DIO 44 can be supplied with voltage via PoE+ (Power over Ethernet plus) or better.

812 13

7

11

10

9

812 13

7

11

10

9

7 POWER SYMBOL

As soon as the DIO 22 or DIO 44 is supplied with voltage, the starting process begins.

During the start-up process, the white power symbol flashes and the line outputs OUTPUT are

muted. When the start-up process is completed after a few seconds, the symbol lights up

permanently and the unit is ready for operation.

8 ROTARY-PUSH ENCODER

The status query and editing of the settings of the input channels is done with the help of the

rotary-push encoder.

Status request: Press the encoder briefly and then rotate it to sequentially retrieve the status

information of each input channel. The number of the selected channel lights up. The status

of the phantom power (symbol lights up orange = on / symbol does not light up = off) and the

value of the input gain (-15, 0, +15, +30, selected value lights up white) are displayed.

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EXAMPLE DIO 22

The illumination of the characters is automatically deactivated if no input is made within

approximately 40 seconds .

EXAMPLE DIO 44

The illumination of the characters is automatically deactivated if no input is made within

approximately 40 seconds .

Edit mode: Press the encoder briefly and then select the desired channel by turning the encoder.

Now press the encoder for about 3 seconds to switch to editing mode. The channel number and

the abbreviation for phantom power P24V start flashing. Now switch the phantom power of

this channel on or off by turning the encoder (P24V flashes in sync with the channel number =

phantom power on, P24V flashes quickly = phantom power off). Confirm the selection by briefly

pressing the encoder. At the same time, the currently set value for GAIN now starts flashing and

you can change the value as desired by turning the encoder. Confirm the selection by briefly

pressing the encoder. The digit of the next channel then flashes and you can set the status and

value as desired or exit the editing mode by pressing the encoder again for about 3 seconds.

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DIO 22

DIO 44

9 INPUT

Illuminated digits for the input channels. In each case, one of the digits lights up when the

corresponding channel is selected during the status query and flashes in editing mode.

10 P24V

The orange abbreviation for the 24 V phantom power P24V lights up during the status query

when phantom power is switched on and flashes in editing mode (P24V flashes in sync with

the channel digit = phantom power on, P24V flashes quickly = phantom power off).

11 GAIN -15 / 0 / +15 / +30

White illuminated digits for status enquiry and for editing the channel preamplification. One of

the values -15 to +30 lights up during the status query and flashes in editing mode. The values -15

and 0 are intended for line level and signals are passed on unprocessed. The values +15 and +30

are for microphone levels and signals are processed with a high-pass filter at 100 Hz.

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12 SIGNAL INPUT / OUTPUT

Two-colour illuminated digits for signal detection and clip display.

INPUT: As soon as an audio signal with sufficient level is present at an input channel, the

corresponding digit lights up white. As soon as one of the digits lights up red, the corresponding

input stage is operated at the distortion limit. In this case, reduce the channel pre-amplification

GAIN or reduce the level on the playback device so that the digit no longer lights up red.

OUTPUT: As soon as an audio signal with sufficient level is present at an output channel, the

corresponding digit lights up white. As soon as one of the digits lights up red, the corresponding

output stage is operated at the distortion limit. In this case, reduce the level on the source player

so that the digit no longer lights up red.

13 LOCK SYMBOL

The editing mode can be locked against unauthorised editing. Press the encoder for about

10 seconds to activate the lock. Ignore the fact that the editing mode is activated after about

3 seconds. Now the lock symbol flashes for a few seconds and then lights up permanently and

only the status query of the input channels can be carried out. To deactivate the lock, press the

encoder again for about 10 seconds.

AIR VENTS

To prevent damage to the device, do not cover the ventilation openings on the left and right

sides and on the top and bottom of the device and ensure that air can circulate freely. Covering

the ventilation openings on the top or bottom of the enclosure when mounting it underneath

or on top of a table is not critical, as the cooling provided by the ventilation openings on the

remaining sides is sufficient.

Tip: Preferably use balanced audio cables for wiring analogue line inputs and outputs.

CONNECTION EXAMPLES

DIO 22

1

Dante® Controller

Questra

ON

234

DIP

ON

1234

DIP

ON

1234

DIPON

1234

DIP

24V DC

Power supply

LD IPA + LD X EDAI

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2

24V DC

Power supply

Ethernet Switch

3

Analog Mixer

Dante® Mixer

Dante® Controller

Questra

Dante® Controller

INPUTS

1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8POWER

ZONE X 1208D

NETWORK

REMOTE

9 10 11 12

OUTPUTS

Active Loudspeaker

ON

23 4

DIP

ON

1 2 3 4

DIP

ON

1 2 3 4

DIPON

1 2 3 4

DIP

24V DC

Power supply

24V DC

Power supply

Ethernet Switch

PoEPoE

INPUT 1 + 2

OUTPUT 1 + 2

touch control wall panel

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4

Dante® Controller

INPUTS

1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8POWER

ZONE X 1208D

NETWORK

REMOTE

9 10 11 12

OUTPUTS

Ethernet Switch

PoEPoE

INPUT 1 + 2

OUTPUT 1 + 2

touch control wall panel

DIO 44

1

Dante® Controller

Questra

ON

234

DIP

ON

1234

DIP

ON

1234

DIPON

1234

DIP

24V DC

Power supply

LD IPA + LD X EDAI

2

24V DC

Power supply

Ethernet Switch

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3

Analog Mixer

Dante® Mixer

Dante® Controller

Questra

Dante® Controller

INPUTS

1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8POWER

ZONE X 1208D

NETWORK

REMOTE

9 10 11 12

OUTPUTS

Active Loudspeaker

ON

23 4

DIP

ON

1 2 3 4

DIP

ON

1 2 3 4

DIPON

1 2 3 4

DIP

24V DC

Power supply

24V DC

Power supply

Ethernet Switch

PoEPoE

INPUT 1 - 4

OUTPUT 1 - 4

touch control wall panel

4

Dante® Controller

INPUTS

1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8POWER

ZONE X 1208D

NETWORK

REMOTE

9 10 11 12

OUTPUTS

Ethernet Switch

PoEPoE

INPUT 1 - 4

OUTPUT 1 - 4

touch control wall panel

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TERMINAL BLOCK CONNECTIONS

DIO 22

balanced

unbalanced

INPUT Connections

balanced

unbalanced

OUTPUT connections

DIO 44

balanced

unbalanced

INPUT Connections

balanced

unbalanced

OUTPUT connections

When wiring terminal blocks, please observe the correct assignment of the poles/

terminals. The manufacturer accepts no liability for damage caused by faulty wiring!

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DANTE® CONTROLLER

A Dante® network is set up using the freely available DANTE® CONTROLLER software. Download

the software from the manufacturer's website www.audinate.com and install it on a computer.

Connect the Ethernet interface of the computer to a network interface of the DIO 22 or DIO 44

using a network cable (Cat. 5e or better) and run the Dante® Controller software. The software

has an automatic device detection function. Signal routing is done by mouse click and the unit

and channel designations can be individually edited by the user. IP address, MAC address and

other information about the devices in the Dante® network can be displayed in the software.

Once the configuration of the devices on the Dante® network is complete, the Dante® Controller

software can be closed and the computer disconnected from the network. The settings in the

units in the network are retained.

When the DIO 22 or DIO 44 is disconnected from the Dante® network, the unit's audio outputs

are muted and the power icon on the front panel starts flashing.

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UNDER / ON-TABLE MOUNTING

There are two recesses on the top and bottom of the enclosure, each with two M3 threaded

holes, for mounting underneath or on top of the table. Screw the two enclosed mounting plates

to the top or bottom using the enclosed M3 countersunk screws. Now the amplifier can be fixed

in the desired position (see illustration, fixing screws not included). For tabletop mounting, the

four rubber feet must be removed beforehand.

CARE, MAINTENANCE AND REPAIR

To ensure the proper functioning of the unit in the long term, it must be cared for regularly and

serviced as required. The need for care and maintenance depends on the intensity of use and

the environment.

We generally recommend a visual inspection before each start-up. Furthermore, we recommend

that you carry out all the maintenance measures listed below every 500 operating hours or, in

the case of low intensity of use, after one year at the latest. Defects caused by inadequate care

may result in limitations of the warranty claims.

CARE (CAN BE CARRIED OUT BY THE USER)

WARNING! Before carrying out any maintenance work, disconnect the power supply

and, if possible, all appliance connections.

NOTE! Improper care can lead to impairment or even destruction of the unit.

1. Housing surfaces must be cleaned with a clean, damp cloth. Make sure that no moisture can

penetrate the unit.

2. Air inlets and outlets must be regularly cleaned of dust and dirt. If compressed air is used,

make sure that damage to the unit is prevented (e.g. fans must be blocked in this case).

3. Cables and plug contacts must be cleaned regularly and freed from dust and dirt.

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LD Systems DIO 44 Manuel utilisateur

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