Ecler BOB-22 Dante/AES67 Digital Audio Interface
User Manual
1. Precauciones
1.1 Important Warning
CAUTION: RISK OF ELECTRIC SHOCK - DO NOT OPEN
WARNING: SHOCK HAZARD - DO NOT OPEN
AVIS: RISQUE DE CHOC ÉLECTRIQUE - NE PAS OUVRIR
The lightning symbol with an arrow at the tip inside an equilateral triangle is intended to alert the user to the presence of dangerous, uninsulated voltage within the apparatus, and of a magnitude sufficient to constitute a risk of electric shock to persons.
The exclamation mark symbol within an equilateral triangle is intended to alert the user to the presence of important operation and maintenance instructions in the information accompanying the product.
WARNING (If applicable): Terminals marked with the symbol "⚡" may be of sufficient magnitude to constitute a risk of electric shock. External wiring connected to the terminals must be installed by qualified personnel or use pre-made cables.
WARNING: To prevent electric shock or fire hazard, do not expose this equipment to rain or humidity.
WARNING: Class I construction apparatus must be connected via a grounded plug.
WARNING: Ecler products have a long service life, over 10 years. This product must not be disposed of as unsorted municipal waste under any circumstances. Take it to the nearest electrical and electronic waste treatment center.
1.2 Important Safety Instructions
- Read these instructions.
- Keep these instructions.
- Heed all warnings.
- 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 such as radiators, heat registers, stoves, or other apparatus that produce heat, including amplifiers.
- Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has two blades, one wider than the other. A grounding-type plug has two blades and a third grounding prong. The third prong is provided 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 specified by the manufacturer.
- Unplug this apparatus during lightning storms or when unused for long periods of time.
- 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.
- Disconnecting from the mains: by switching off the POWER switch, all functions and indicators of the amplifier will stop, but complete disconnection of the apparatus is achieved by unplugging the mains cable from its connector. For this reason, it must always be easily accessible.
- The equipment is connected to a grounded socket-outlet through the power supply cord.
- Part of the product labeling is located on the base/rear 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.
1.3 Cleaning
To clean the apparatus, use only a soft, dry cloth or one slightly dampened with water and a neutral liquid detergent, then dry it with a clean cloth. Ensure that water never enters the apparatus through any opening. Never use alcohol, benzine, solvents, or abrasive substances.
NEEC AUDIO BARCELONA, S.L. disclaims any responsibility for damages that may be caused to persons, animals, or objects due to non-compliance with the above warnings.
2. Warranty and Environmental Information
Thank you for trusting us by choosing our Ecler BOB-22 equipment!
To achieve maximum operability and performance, it is VERY IMPORTANT, before connecting it, to read carefully and keep in mind the considerations specified in this manual.
To ensure optimal operation of this device, we recommend that its maintenance be carried out by our authorized Technical Services.
All ECLER products have a warranty; please consult www.ecler.com or the warranty card included with this device to find out the validity period and its conditions.
At Ecler, we are truly committed to the environment and the sustainability of the planet, with energy saving and the reduction of CO2 emissions. The recycling of materials and the use of non-polluting components are the most important priorities of our green crusade.
Ecler has evaluated and analyzed the environmental impacts in all the processes of elaboration of this product, including packaging, and has mitigated, reduced, and/or compensated for them.
3. Box Contents
- 1 BOB-22 unit.
- 4 rubber feet.
- 2 Euroblock connectors (green).
- 2 Euroblock connectors (blue).
- 1 half-rack front panel joining adapter.
- 4 washers (use them when mounting the device in a front rack to avoid leaving marks on the device's side supports).
- Quick start guide.
- Warranty card.
4. Description and Features
The BOB-22 is a digital audio interface with 2 MIC/LINE audio inputs and 2 LINE level audio outputs, and Dante/AES67 (Audio over IP), allowing the conversion of up to 2 Dante/AES67 channels into 2 analog audio output signals of LINE level and vice versa; converting 2 analog MIC/LINE audio input signals into 2 Dante/AES67 channels for transmission over an Ethernet network.
It features PoE (Power over Ethernet) for DC power supply directly from PoE-compatible Ethernet switches. It optionally includes an external 24 VDC power supply (sold separately).
The BOB-22 is a generic Dante/AES67 device that can be used in combination with Ecler Dante devices, such as EclerNet / EclerPLEX / VIDA / HALO, or with any other third-party Dante/AES67 device, but it is not a native EclerNet / EclerPLEX "host" unit.
4.1 Main Features
- Ethernet Interface.
- Euroblock connectors for analog audio inputs and outputs.
- 2 analog MIC/LINE audio inputs.
- 2 analog LINE level audio outputs.
- 2x2 channels of digital audio (transmission and reception) in Dante/AES67 format.
- PoE power supply ready.
- Compact format.
- Half-rack front panel joining adapter included.
5. Installation and Connections
5.1 Installation
The BOB-22 has been specially designed for installation in 19" rack cabinets, occupying one unit of height and half a unit of width. It includes a half-rack joining adapter, which allows mounting two half-width rack devices in a standard 1 unit (19") rack. See below how to mount the adapter.
Important: Since the device incorporates a heat generator, it is very important that it is not completely enclosed or exposed to extreme temperatures.
Important: If the installation consists of several units installed in the same rack or is carried out inside closed cabinets with doors, it is highly recommended to equip them with forced ascending ventilation, installing fans at their lower and upper ends. This ascending ventilation flow will favor the dissipation of the heat generated inside.
5.1.1 Mounting the half-rack front panel joining adapter
The BOB-22 includes a half-rack front panel joining adapter that allows mounting two half-width rack devices in a standard 19" rack unit.
Diagram 1: Remove the 3 screws from one of the supports.
Diagram 2: To join the supplied half-rack front panel adapter, use the same 3 screws that were removed.
5.2 Connections
5.2.1 Input audio connections
The BOB-22 has 2 balanced analog signal inputs on its rear panel that accept line or microphone levels and are prepared for Phantom power.
The signal input connectors are 3-position screw terminal blocks. The wiring is:
- Signal (hot/in-phase): Terminal +
- Signal (cold/inverted): Terminal -
- Ground connection: Terminal ⏚
Note for unbalanced connection: Short the "hot" pin to the "cold" pin as shown in the image above.
Microphone Signal: The 2 ways have Euroblock connection and are prepared for a nominal input level of -50dBV to 0dBV, with adjustable gain on the rear panel via the GAIN control.
The wiring for microphones is shown in the following diagram:
Balanced:
- 1. Hot (+18V)
- 2. Cold (+18V)
- 3. Ground (0V) (Phantom ON)
Unbalanced:
- 1. Hot (+18V)
- 2-3. Ground (0V) (Phantom ON)
Note: Microphones should be low impedance (200 to 600Ω) and mono.
Each analog input has its own gain control knob.
The BOB-22 provides Phantom power for condenser microphones, activated by an internal jumper.
Note: Phantom power is deactivated by default (factory setting).
5.2.2 Output audio connections
The BOB-22 has 2 balanced analog line level outputs on its rear panel that accept line levels.
The signal output connectors are 3-position screw terminal blocks. The wiring is:
- Signal (hot/in-phase): Terminal +
- Signal (cold/inverted): Terminal -
- Ground connection: Terminal ⏚
Note for unbalanced connection: Short the "hot" pin to the "cold" pin as shown in the image above.
5.2.3 Ethernet Port / Dante/AES67
The RJ-45 ETHERNET connector on the rear panel allows connecting the device to an Ethernet network.
The BOB-22 allows 2x2 channel Dante/AES67 transmission and reception.
For more information on Dante network configuration and routing, consult the chapter Network Configuration and Dante/AES67 Routing.
6. Startup and Operation
If PoE DC power is not available from the Ethernet switch, connect the optional external power supply (sold separately) to the DC IN connector on the rear panel.
Note: To avoid hum, prevent the power cable from intertwining with shielded audio cables.
The device will turn on automatically, and the ON LED on the front panel will illuminate green.
7. Network Configuration and Dante/AES67 Routing
To configure network parameters (IP addresses, mask, etc.) and the transmission and reception of Dante/AES67 channels, the Dante Controller application from Audinate must be used.
For more information, consult the developer's documentation: www.audinate.com
AES67 is enabled by default. Dante devices cannot subscribe to AES67 flows from other Dante devices.
The device comes from the factory with the DHCP service activated. Therefore, the unit will automatically obtain a dynamic IP address provided by a DHCP server on the local area network to which it is connected, if such a server is available. However, specific static network parameters can be configured using Dante Controller, by accessing the window shown in this example:
Example Window: Dante Controller - Device View (BOB04-9b8cf0)
The unit's name displayed by default in Dante Controller is set at the factory as BOB-22-nnnnnn, where "nnnnnn" corresponds to the last 6 digits of each device's MAC address. However, it can be renamed via the following window:
Example Window: Dante Controller - Device View (BOB04-9b8cf0)
The routing of Dante/AES67 channel transmitters and receivers can be defined in the routing window, where all Dante-enabled devices detected on the network will also appear:
Example Window: Dante Controller - Network View
8. Panel Functions
8.1 Front Panel
The front panel of the BOB-22 features several indicators and controls:
- ON LED: Indicates the unit is powered on. It illuminates green when the unit is operational.
- Dante/AES67 LED Indicators:
- Red, Solid LED: During the boot process.
- Amber, Solid LED: During PTP (Precision Time Protocol) network time synchronization.
- Green, Solid LED: Device configured as Dante/AES67 Slave.
- Green, Flashing LED: Device configured as Dante/AES67 Master.
- OUT (x2 Outputs) Clip/Signal Indicators:
- Green: Signal present.
- Red: Clip.
- IN (x2 Inputs) Clip/Signal Indicators:
- Green: Signal present.
- Red: Clip.
8.2 Rear Panel
- 24V DC Power Input: Connection for the power supply.
- Ethernet/Dante RJ-45 Connector: For network connection.
- Output Euroblock Terminals x2: Balanced line level outputs.
- Input Gain Control x2: Adjusts the input signal gain.
- Input Euroblock Terminals x2: Balanced mic/line level inputs.
9. Technical Information
9.1 Technical Specifications
| Parameter | Specification |
|---|---|
| BOB-22 | |
| Audio Converters | Sampling rate: 48 kHz Resolution: 24 bit Latency: ADC 0.81 ms, DAC 0.56 ms, Total 1.37 ms Frequency response: 0 - 20 kHz Dynamic range: ADC:110dB, DAC:115dB |
| Analogue Audio Input Ports | Number of input ports: 2, MIC/LINE level Connection type: Euroblock, 3-pin, balanced Input sensitivity: -50dBV to +0dBV Input impedance: > 4 kΩ Max input level: +18dBV = +20dBu THD+Noise @ 1kHz (line): <0.005% THD+Noise @ 1kHz (-40dBV input (mic)): <0.40% CMRR: 56dB typ. Phantom power: +48VDC, Internal jumper activation |
| Analogue Audio Output Ports | Number of output ports: 2, LINE level Connection type: Euroblock, 3-pin, balanced Max output level: +18dBV = +20dBu Output impedance: 316 ohms Crosstalk: Better than 95 dB |
| Audio Over IP | Protocols: Dante® / AES67 (2/2 flows) Number of digital input ports: 2 Number of digital output ports: 2 Interfaces: 1 x RJ-45 |
| Connectivity | Ethernet: 1 x RJ-45 connector, 10/100Mb, 1GB Auto X-Over Programming and control: Dante® Controller |
| Electrical | Power supply: 24VDC External PSU (sold separately) Secondary power supply: PoE: class 0 802.3af Poe PD compliant AC mains requirement: 90-265VAC @ 50-60Hz (External PSU: 24VDC) Power consumption: 14 VA / 8 W Ventilation: Passive |
| Physical | Operating temperature: Min: -10°C; 14°F, Max: 40°C; 104°F Operating humidity: <85% HR Storage temperature: Min: -10°C; 14°F, Max: 40°C; 104°F Storage humidity: <90% HR Installation options: Desktop, 19" racks (1RU) |
9.2 Mechanical Diagram
All measurements are in mm.
Included accessories: 4x Euroblock 3-pin connectors, 4x Rubber feet, 1x Frontal Support Half-Rack accessory, 4x Washer.
Dimensions (WxHxD): 266.1 x 32 x 156.2 mm / 10.48 x 1.26 x 6.15 in.
Weight: 1.1 Kg / 2.43 lb.
Shipping dimensions (WxHxD): 430 x 52 x 261 mm / 16.93 x 2.05 x 10.28 in.
Shipping weight: 1.7 Kg / 3.75 lb.
All product features are subject to variation due to production tolerances. NEEC AUDIO BARCELONA, S.L. reserves the right to make changes or improvements in the design or manufacturing that may affect the specifications of this product.
For technical inquiries, please contact your supplier, distributor, or complete the contact form on our website, under Support / Technical Inquiry.
Motors, 166-168 | 08038 Barcelona, Spain | Tel. (+34) 932238403 | information@ecler.com | www.ecler.com
