Ecler DN44BOB Digital Audio Interface

Important Notes and Safety Instructions

Important Remark: This section contains crucial information regarding electrical safety. It highlights the presence of dangerous voltages within the unit and provides warnings about potential electric shock hazards. Users are advised not to open the device. The exclamation mark symbol indicates important operating and maintenance instructions found within this document.

WARNINGS:

• Terminals marked with a symbol may carry sufficient voltage to constitute an electric shock hazard. External wiring must be installed by a qualified person or use pre-assembled cables.
• To prevent fire or electric shock, do not expose the unit to rain or humidity.
• Type I construction devices must be connected using a grounded plug.
• Read and keep these instructions.
• Heed all warnings and follow all instructions.
• Do not use this apparatus near water.
• Clean only with a dry cloth.
• Do not block any ventilation openings. Install in accordance with the manufacturer's instructions.
• Do not install near heat sources like radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat.
• Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has two blades with one wider than the other. A grounding-type plug has three prongs: two blades and a grounding prong. The grounding prong is for your safety. If the provided plug does not fit into your outlet, consult an electrician to replace the obsolete outlet.
• Protect the power cord from being walked on or pinched, particularly at plugs, convenience receptacles, and the point where they exit from the apparatus.
• Only use attachments/accessories recommended by the manufacturer.
• Unplug this apparatus during lightning storms or when unused for long periods.
• Refer all servicing to qualified service personnel. Servicing is required when the apparatus has been damaged in any way, such as power-supply cord or plug is damaged, liquid has been spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or moisture, does not operate normally, or has been dropped.
• To disconnect the apparatus from the mains, press the POWER switch (13). For complete disconnection, unplug the power cord from the mains socket (11). Ensure the power cord is always easily accessible.
• This apparatus must be connected to a grounded power outlet via its power cord.
• Product labeling is located on the bottom of the unit.
• This apparatus shall not be exposed to dripping or splashing, and no objects filled with liquids, such as vases, shall be placed on the apparatus.

Environmental Disposal: This product should not be disposed of as unsorted municipal waste. Take it to the nearest electrical and electronic waste treatment center.

NEEC AUDIO BARCELONA, S.L. disclaims all responsibility for damages that may be caused to persons, animals, or objects due to non-compliance with the above warnings.

Introduction

Thank you for choosing the Ecler DN44BOB Digital Audio Interface, DANTE™/AES67. It is crucial to read and fully understand this user manual before making any connections to maximize your usage and achieve the best performance from this equipment.

For optimal operation, we recommend that maintenance be carried out by authorized technical services. All ECLER products come with a warranty; please refer to www.ecler.com or the warranty card for validity and conditions.

The DN44BOB is a digital audio interface over IP utilizing the DANTE™/AES67 protocol. Its main features include:

• Ethernet Interface.
• DANTE™/AES67 digital audio signal transmission and reception.
• Compatible with EclerNet.
• 4 balanced mic/line inputs with phantom power and 3 sensitivity levels, converted to DANTE™/AES67 format and sent to the network.
• 4 balanced line outputs, converted from 4 DANTE™/AES67 channels received from the network.
• Euroblock connectors for analog audio inputs and outputs.
• 4 GPI ports (0-10 V DC) on Euroblock connectors.
• 4 GPO NO/NF (Normally Open/Normally Closed) ports on Euroblock connectors.
• Rack mounting kit included: 1UHRMKIT + PUM3 accessories for mounting two half-width rack units in a standard 19" rack space, or one half-width unit in a standard 19" rack space.

The DN44BOB is programmed using the EclerNet Manager application. Refer to the EclerNet Manager application manual for more information. The EclerNet Manager application is available for download at www.ecler.com.

DANTE™/AES67 channel transmission and reception configuration is done via the Audinate® Dante Controller application. Refer to the EclerNet Manager application manual for more information.

Installation

5.1. Power Connection and Power-On

The audio interface is powered by an external AC power source: 100-240 V and 50-60Hz.

The power source must be connected to a quality earth ground (earth resistance Rearth = 30 Ω or less). The working environment should be dry and free of dust. Do not expose the unit to rain or splashes. Do not place objects containing liquid or open flames, such as candles, on the unit.

If any intervention or connection/disconnection of the unit is necessary, the power must be turned off first. No internal components are user-serviceable.

To avoid hum, do not let the power cord run alongside shielded cables carrying audio signals.

5.2. Analog Audio Input Connections

The DN44BOB features 4 rear-panel balanced analog inputs (7) that accept line or microphone level signals. Input signal type selection and management are done via the EclerNet Manager application. Refer to the EclerNet Manager application manual for details.

Input signal connectors are 3-contact screw terminals. Connection assignment is as follows:

• Hot point or direct signal: Terminal +
• Cold point or inverted signal: Terminal -
• Ground: Terminal ⏚

For unbalanced connections, connect the ground to the '-' terminal.

5.3. Analog Audio Output Connections

The DN44BOB has 4 rear-panel balanced analog outputs (6) that produce a line-level signal.

Output signal connectors are 3-contact screw terminals. Connection assignment is as follows:

• Hot point or direct signal: Terminal +
• Cold point or inverted signal: Terminal -
• Ground: Terminal ⏚

For unbalanced connections, do not connect the '-' terminal.

The diagram illustrates balanced and unbalanced connections.

5.4. ETHERNET/DANTE™/AES67 Port for Programming and Control

An RJ45 connector (11) allows the unit to connect to an Ethernet network:

• Management via the EclerNet Manager application. Refer to the EclerNet Manager manual for more information.
• Possibility of direct (point-to-point) connection from a computer to a DN44BOB unit.
• Transmission of 4 DANTE™/AES67 channels and reception of 4 DANTE™/AES67 channels.
• Connection to WPNETTOUCH units (remote control of an entire network of EclerNet devices using customized graphical panels or UCPs, including third-party devices, Android®, iOS®, etc.).

5.4.1 Factory Default Network Settings

The factory default network settings for devices compatible with the EclerNet manager are:

• IP: 192.168.0.100
• Mask: 255.255.255.0
• Gate: 192.168.0.1
• UDP Port: 2210

5.5. GPI Remote Control Ports

The DN44BOB offers 4 rear-panel GPI inputs for DC voltage control, 0-10 V. Each of these inputs can be connected to an external physical device (potentiometer, contact closure, 0-10 V voltage variation, etc.) and associated with a DN44BOB function, such as:

• Remote volume control of an input or output channel using a physical potentiometer or an Ecler WPa series WPaVOL-IR remote control. For muting, use a contact closure instead of a potentiometer.
• Recall a preset using a five-position selector, such as the WPaVOL-SR.

GPI connectors are Euroblock type. Connection pinout is as follows:

• Positive, DC +10 V: Terminal +
• Variable voltage, DC 0-10 V: Terminal -
• Ground: Terminal ⏚

Connection diagrams for WPaVOL and WPaVOL-SR to DN44BOB GPI ports are provided.

Connection cables can reach a length of approximately 500 meters using a minimum section of 0.5 mm².

Consult your ECLER distributor or www.ecler.com for information on WPa series wall remotes.

5.6. GPO Remote Control Ports

The DN44BOB features 4 rear-panel relay outputs (8) NO/NF (normally open/normally closed). The open or closed state of each relay can be stored in a DN44BOB preset, so loading a preset restores the state (open/closed) in which the GPOs were when the preset was saved. This allows interaction with external equipment such as projection screen motors, movable partitions, lighting, sirens, GPI inputs of other equipment, etc.

Front Panel LED Indicators

The DN44BOB has the following front panel indicators:

• POWER LED (5): Illuminates when the unit is in service.
• DANTE LED (4):
  • Red LED: Ethernet network disconnected.
  • Green LED: Ethernet network connected, and the device is functioning as master (clock for DANTE™/AES67 transmission on the network).
  • Orange LED: Ethernet network connected, and the device is functioning as slave (synchronized to the clock of the master DANTE™/AES67 unit on the network).
• DATA LED (3): Off: no connection with EclerNet Manager but connected to Ethernet. On: connected to EclerNet Manager. Blinking: exchanging data with EclerNet Manager or others.
• Analog Audio Output LEDs (2): Indicate the presence of an audio signal at the unit's outputs and its intensity level (indicated by green, orange, and red colors, corresponding to increasing intensity levels).
• Analog Audio Input LEDs (1): Indicate the presence of an audio signal at the unit's inputs and its intensity level (indicated by green, orange, and red colors, corresponding to increasing intensity levels).

7. Placement, Mounting, Ventilation

The DN44BOB is designed for 19" rack mounting, occupying one unit in height and half a unit in width. It includes the PUM3 adapter, which allows mounting two half-width rack peripherals in a standard 19" rack unit space.

As the DN44BOB generates heat, it is important not to completely enclose it or expose it to extreme temperatures.

If the installation includes multiple heat-generating devices in the same rack or in cabinets with doors, it is highly recommended to equip these with forced ascending ventilation by installing fans at the top and bottom. This ascending ventilation flow will promote the dissipation of heat produced inside.

8. Cleaning

The casing should not be cleaned with solvents or abrasive substances, as this may damage the screen printing. For cleaning, use a cloth dampened with water and a neutral liquid detergent, then wipe with a clean cloth. In no case should water penetrate the unit through any of its openings.

9. Diagrams and Function List

A front panel view of the DN44BOB is shown, with numbered indicators:

• 1: INPUTS signal LEDs
• 2: OUTPUTS signal LEDs
• 3: DATA exchange LED
• 4: ETHERNET/DANTE LED
• 5: POWER status LED

A rear panel view is also shown, with numbered connectors and controls:

• 6: Signal OUT Euroblock terminals
• 7: Signal IN Euroblock terminals
• 8: Relay OUT Euroblock terminals, GPO
• 9: GPI control Euroblock terminals (DC voltage)
• 10: Default factory settings recall push-button, FD
• 11: RJ45 connector, ETHERNET/DANTE®
• 12: Power source connector

10. Block Diagram

A block diagram illustrates the internal signal flow of the DN44BOB, showing analog inputs, AD converters, DSP processing, Dante transmitters, DAC converters, Dante receivers, and analog outputs. It also depicts the control signals for gain, mute, phase, and phantom power.

11. Technical Specifications

DN44BOB

• DSP: 32bit
• Sampling Rate: 44.1/48 / 88.2 / 96 kHz
• Latency (fs = 48kHz): 1ms

AD/DA Converters

• Resolution: 24bit AKM
• Dynamic Range: AD: 110dB; DA: 115dB
• Latency (fs = 48kHz): AD: 0.81ms; DA: 0.56

Analog Input/Output

• Type: 4 Input/Output Phoenix connectors (Symmetrical)
• Analog Input headroom: +27dBV = +30dBu
• Max. output level: +18dBV = +21dBu
• Input sensitivity @ 0dBV out: From -50dBV to +10dBV in 0.5dB steps
• Input Impedance: Balanced, >4kΩ
• Phantom power: +18VDC, 5mA max. software switched
• Frequency response (-3dB): 5Hz to 24kHz
• Flatness: better than ±0.1dB
• THD+Noise @ 1kHz, 0dBV input (line): <0.004%
• THD+Noise @ 1kHz, -40dBV input (mic.): <0.008%
• Output Noise floor FFT (20Hz - 20kHz): better than 115dB
• Interchannel crosstalk (20Hz - 20kHz): better than 90dB (100dB typ.)
• Channel Leakage (20Hz - 20kHz): better than 100dB (115dB typ.)
• CMRR 20Hz-20kHz: 65dB typ.

DANTE™/AES67 Audio Interface

• Network Inputs/Outputs: 4 / 4 (2/2 flows)
• Latency: 1 / 2 / 5ms (selectable)
• Connector: 1 x RJ45
• Cable length between devices: 100m CAT5 or CAT5e/CAT6

Processing

• Input Level (x4): Range: from Off to 0 dB; Mute: Yes; Signal Polarity reverse: Yes; Metering: VU+clip pre & post fader
• Output Level (x4): Range: from Off to 0 dB; Mute: Yes; Solo: Yes; Signal Polarity reverse: Yes; Metering: VU+clip pre & post fader
• Output Gain (x4): Range: from 0 to +6dB
• Built in Signal Generator: Sine: from 20Hz to 20kHz; Polarity: from 20Hz to 20kHz; White noise; Pink noise
• Output Limiter (x8): Bypass On-Off

Mechanical

• Dimensions (WxHxD): 241x44x152mm
• Weight: 1.1kg

Supply

• DC supply: 24 VDC
• Mains (Using supplied DC adapter): 100-240VAC + External PSU 24VDC
• Power consumption: 6.5 W

Miscellaneous

• Management Connectivity: Ethernet Base-Tx 10/100Mb; Auto X-Over CAT5 up to 100m.
• GPI: 4, from 0 to 10VDC or TTL level
• GPO: 4, 3 poles isolated relay; 1A, 48 VDC max

Software

• EclerNet Manager: From v3.05r2 version
• Operating System: Windows® 10; W8.1; W8; W7; Vista (SP1); XP Prof. (SP3); W2000 Prof. (SP4)
• Minimum EclerNet System Requirements: Pentium IV ® 1GHz; 512MB RAM; 40MB HDD free space; 800x600 pixels & 16bits colour display; 10/100/1G Ethernet Network card

General Information

All product characteristics are subject to variation due to manufacturing tolerances. NEEC AUDIO BARCELONA S.L. reserves the right to make changes to the design or manufacturing of modifications or improvements that may affect the characteristics of this product.

For technical questions, contact your supplier, distributor, or fill out the contact form on the website, under Support / Technical requests.

Motors, 166-168 08038 Barcelona - Spain - (+34) 932238403 | information@ecler.com www.ecler.com