Ecler BOB-22 Dante/AES67 Digital Audio Interface
User Manual
1. Precautions
1.1 Important Preliminary Note
The lightning symbol with an arrow inside an equilateral triangle is intended to warn the user of non-isolated, dangerous voltage within the product enclosure that is sufficient to cause electric shock.
The exclamation mark in an equilateral triangle is intended to alert the user to the presence of important operating and maintenance instructions in the accompanying literature.
WARNING (if applicable): Connections marked with the symbol "⚡" may pose a risk of electric shock. External wiring connected to the terminals must be carried out by qualified personnel or with pre-assembled cables.
WARNING: For fire and electric shock protection, the unit must always be protected from moisture and humidity.
CAUTION: Class I safety devices must only be connected to earthed mains sockets.
CAUTION: Ecler products have a long lifespan of more than 10 years. This product must not be disposed of as unsorted municipal waste under any circumstances. Please dispose of it at the nearest recycling center for electrical and electronic waste.
1.2 Important Safety Instructions
- Read this manual thoroughly.
- Keep this manual in a safe place.
- Observe all warning notices.
- Follow all instructions.
- Do not use the device near water.
- Clean it only with a dry cloth.
- Ensure that all ventilation openings remain unobstructed. Install the device according to the manufacturer's instructions.
- Do not place the device near heat sources such as radiators, ovens, or other devices that generate heat (including amplifiers).
- Never disable the safety feature of a polarized or earthed plug. A polarized plug has two pins of different widths. An earthed plug has two pins and a third earth pin. This third pin is for your safety. If the supplied plug does not fit your socket, have it replaced by a qualified electrician.
- Ensure that the power cord cannot be pinched, twisted, or stepped on, especially at the area of the plugs, connection sockets, and where the cable exits the device.
- Only use accessories/spare parts specified by the manufacturer.
- Disconnect the device from the mains during thunderstorms or when it will not be used for an extended period.
- Have service work performed only by qualified customer service. Service is required when the device has been damaged in any way, such as damage to the power cord or plug, if liquids or foreign objects have entered the device, if the device has been exposed to rain or moisture, if it does not function properly, or if it has been dropped.
- Power Supply Disconnection: Switching off the device using the POWER switch interrupts all functions and indicator lights. However, to completely disconnect the device from the mains, the power cord must be pulled from the mains socket. This must therefore always be easily accessible.
- The device is connected to an earthed socket via a power cord.
- The specifications are located on the top/back of the device.
- Protect the device from dripping or splashing water and do not place any containers filled with liquids (e.g., vases) on it.
1.3 Cleaning
Always clean the device with a soft, dry cloth or a cloth slightly dampened with water and mild liquid soap. Ensure that no liquid enters the device through any openings. Do not use alcohol, gasoline, solvents, or abrasive cleaners for cleaning.
NEEC AUDIO BARCELONA, S.L. is not liable for any damage to persons, animals, or objects resulting from non-compliance with the above warnings.
2. Warranty and Environment
Thank you for trusting Ecler with your choice of the BOB-22 model.
For optimal operational capability and performance, it is VERY IMPORTANT to carefully read and follow the instructions in this manual before connecting the device.
For optimal device performance, we recommend that maintenance be carried out exclusively by our authorized technical service partners.
A warranty applies to all ECLER products. The validity period and conditions can be found at www.ecler.com or on the warranty card included with the device.
Ecler is committed to environmental protection and reducing CO2 emissions. The use of recyclable materials and non-polluting components is also a top priority in our environmental commitment.
Ecler has evaluated and analyzed the environmental impact of all processes involved in the manufacturing of this product, including packaging, and has mitigated, reduced, and/or compensated for them.
3. Package Contents
- 1 x BOB-22 unit.
- 4 x Rubber feet.
- 2 x Euroblock connectors (green).
- 2 x Euroblock connectors (blue).
- 1 x Front adapter for Half-Rack.
- 4 x Washers (use these when mounting the unit on a front rack to avoid imprints on the side brackets of the unit).
- Quick guide.
- Warranty certificate.
4. Description and Features
The BOB-22 is a digital audio interface, 2xMIC/LINE audio inputs, and 2 LINE-level audio outputs, a Dante/AES67 (Audio Over IP) Breakout Box. It allows the conversion of up to 2 Dante/AES67 channels into 2 analog audio output signals with LINE level and vice versa, and converts 2 analog MIC/LINE audio input signals into 2 Dante/AES67 channels for transmission over an Ethernet network.
The device features PoE (Power over Ethernet) for DC power supply directly from PoE-enabled Ethernet switches. An optional external 24 VDC power supply is available (sold separately).
The BOB-22 is a generic Dante/AES67 device that can be used in combination with EclerNet / EclerPLEX / VIDA / HALO Dante devices from Ecler or with other Dante/AES67 devices from third parties, but it is not a native EclerNet / EclerPLEX guest unit.
4.1 Key Features
- Ethernet interface.
- Euroblock connectors for analog audio inputs and outputs.
- 2 analog MIC/LINE audio inputs for reception.
- 2 analog LINE level audio outputs.
- 2x2 digital audio send and receive channels in Dante/AES67 format.
- PoE power supply ready.
- Compact format.
- Front support as Half-Rack accessory included.
5. Installation and Connection
5.1 Installation
The BOB-22 was specifically designed for installation in 19" racks, occupying one height unit and half a rack width. It includes an adapter that allows you to mount two half-width rack devices in racks of a standard 19-inch measurement unit. See the installation guide below.
! Since the device generates heat, it is very important that it is not placed in a completely enclosed space and is not exposed to extreme temperatures.
! If the installation involves multiple devices in the same rack or in a cabinet with closed doors, it is highly recommended to install forced ventilation, i.e., fans at the bottom and top. This upward airflow facilitates the dissipation of heat generated inside the rack or cabinet.
5.1.1 Half-Rack Adapter Assembly
The BOB-22 includes a Half-Rack front plate, which allows mounting two half-width media devices in 1 standard rack unit (19") racks.
Step 1: Loosen the 3 screws on one of the side panels.
Step 2: For attaching the included front Half-Rack adapter, use the 3 previously removed screws.
5.2 Connection
5.2.1 Audio Input Connections
The BOB-22 rear panel features 2 balanced analog signal inputs that support LINE or MICROPHONE levels and can be supplied with phantom power.
The signal input connections are made using 3-pole screw terminals. The pin assignment is as follows:
- Live or direct signal: + terminal
- Cold or inverted signal: - terminal
- Ground: ⊥ terminal
For unbalanced operation, short the ground terminal ⊥ to the minus terminal as shown in the image above.
Microphone Signal: The 2 channels are equipped with Euroblock connectors and can accept signals with a nominal input level from -50dBV to 0dBV, with the gain adjustable on the rear panel using the GAIN control.
The following diagram shows the microphone connections:
Balanced:
- 1. Hot (+18V)
- 2. Cold (+18V)
- 3. Ground (0V) (Phantom ON)
Unbalanced:
- 1. Hot (+18V)
- 2-3. Ground (0V) (Phantom ON)
! Microphones must have a low impedance (200 - 600Ω) and be mono.
Each analog input has its own gain control.
The BOB-22 features phantom power for condenser microphones, which can be activated via an internal jumper.
By default (factory setting), phantom power is not activated.
5.2.2 Audio Output Connections
The BOB-22 rear panel provides 2 analog outputs for LINE level signals.
The signal output connections are made using 3-pole screw terminals. The pin assignment is as follows:
- Live or direct signal: + terminal
- Cold or inverted signal: - terminal
- Ground: ⊥ terminal
For unbalanced operation, short the ground terminal ⊥ to the minus terminal as shown in the image above.
5.2.3 Ethernet / Dante/AES67 Connection
The RJ-45 ETHERNET port on the rear panel allows connecting the device to an Ethernet network.
The BOB-22 enables sending and receiving 2x2 Dante/AES67 channels.
For more information on network configuration and Dante routing, please refer to the Network Configuration and Dante/AES67 Routing chapter.
6. Commissioning and Operation
If PoE power supply via the Ethernet switch is not available, please connect the optional external power supply (sold separately) to the DC IN connection on the rear panel.
To avoid unwanted hum noise, ensure that the power cable does not come into contact with the shielded audio cables carrying the signal.
The device switches on automatically, and the ON LED on the front panel lights up green.
7. Network Configuration and Dante/AES67 Routing
The routing of digital audio signals Dante/AES67 through the Ethernet network, as well as the network configuration of the Dante/AES67 ports (IP addresses, mask, etc.), is managed by the Dante Controller software application.
For more information, please refer to the developer's documentation: www.audinate.com
AES67 is enabled by default. Dante devices cannot receive AES67 streams from other Dante devices.
The device is supplied from the factory with DHCP service enabled, meaning the device automatically acquires a dynamic IP address provided by a DHCP server on the LAN network. However, it is possible to configure specific static network parameters using the Dante Controller application. Open the window shown in the following figure:
The default device name (as it appears in Dante Controller) is always BOB-22-nnnnnn, where "nnnnnn" corresponds to the last 6 digits of the device's MAC address. This device name can be changed in the following window.
The routing for Dante/AES67 channel senders and receivers can be set in the Routing window, which also displays all Dante-enabled devices found on the network:
8. Front Panel Functions
8.1 Front Panel
1. ON: POWER On LED indicator, lights up when the device is switched on.
2. Dante/AES67 LED Indicator:
- Red steady LED: lights up during the startup process.
- Amber steady LED: during PTP (Precision Time Protocol) network synchronization.
- Green steady LED: The device has been configured as a Dante/AES67 slave.
- Green flashing LED: The device has been configured as a Dante/AES67 master.
3. OUT: OUTPUTs Clip/Signal indicators x2
- Green LED: SP
- Red LED: Clip
4. IN: INPUTS Clip/Signal indicators x2
- Green LED: SP
- Red LED: Clip
8.2 Rear Panel
- DC IN 24V: 24V DC IN socket.
- Ethernet/Dante RJ-45 Connection.
- OUTPUT Euroblock Connectors x2
- INPUT GAIN: Gain controls x2
- INPUT Euroblock Connectors x2
9. Technical Data
9.1 Technical Specifications
| Feature | 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, 0dBV input (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 156.2mm / 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.
General Information
Due to production tolerances, all specified data are subject to change. NEEC AUDIO BARCELONA S.L. reserves the right to make changes or improvements to the design or manufacturing that may affect these product specifications.
For technical questions, please contact your supplier, dealer, or fill out the contact form on our website under Support / Technical requests.
Motors, 166-168 | 08038 Barcelona, Spain | Tel. (+34) 932238403 | information@ecler.com | www.ecler.com
