Description
🔹 Product Overview
The BOSCH LBB4512/00 is a high-power infrared radiator from the Bosch Integrus language distribution system. It receives the carrier signal from an Integrus infrared transmitter and distributes infrared audio signals throughout large conference and interpretation venues.
The LBB4512/00 is designed for coverage of up to 2,600 m², with automatic gain control for efficient operation of its infrared emitting diodes. It supports ceiling, wall, or floor-stand installation depending on the mounting configuration.
The supplied product title describes it as an infrared radiation board/radiator with 180 W operating power. The Bosch specification identifies 180 W as the radiator’s operating power consumption, rather than its optical output power.

⚙️ Key Features
- Bosch Integrus high-power infrared radiator
- Model LBB4512/00
- Designed for large-area language distribution
- Coverage up to approximately 2,600 m²
- 480 IREDs for infrared transmission
- Operating power consumption: 180 W
- Standby power consumption: 10 W
- Total optical peak intensity: 24 W/sr
- Automatic mains voltage selection
- HF input for connection to the Integrus transmitter
- Automatic gain control for infrared emitter efficiency
- Full- and half-power operation
- Suitable for ceiling, wall, or floor-stand mounting
📋 Technical Datasheet
| Parameter | Specification |
|---|---|
| Brand | BOSCH |
| Model | LBB4512/00 |
| Product Series | Bosch Integrus |
| Product Name | High-Power Infrared Radiator |
| Product Type | Infrared Audio Distribution Radiator |
| Mains Voltage | 100–240 VAC, 50–60 Hz |
| Operating Power Consumption | 180 W |
| Standby Power Consumption | 10 W |
| Infrared Emitters | 480 IREDs |
| Coverage / Optical Intensity | Up to 2,600 m² / 24 W/sr |
📡 Infrared Distribution Function
The LBB4512/00 accepts the carrier signal generated by an Integrus transmitter and converts it into infrared radiation for distribution throughout the conference area.
The radiator supports up to 32 audio distribution channels within the Integrus system architecture. Multiple radiators can be connected through the transmitter’s HF outputs, allowing the system to cover large venues.
The radiator also incorporates automatic gain control and power-selection functions to optimize infrared emitter operation.
🔌 System Integration
A typical Integrus system uses the following signal path:
Audio / Conference System → Integrus Transmitter → HF Distribution → LBB4512/00 Radiator → Infrared Receivers → Delegates
The LBB4512/00 uses an HF input with a nominal signal level of 1 Vpp, with a minimum specified input of 10 mVpp.
The radiator automatically detects the carrier signal and can enter standby operation when carrier transmission is absent.
🏢 Typical Applications
The LBB4512/00 is suitable for:
- International conference centers
- Multilingual meeting rooms
- Parliamentary facilities
- Convention halls
- Interpretation systems
- Large lecture venues
- Corporate conference facilities
- Government meeting facilities
- Courtroom language-distribution systems
- Large-area infrared audio distribution
📐 Installation & Mounting
The radiator measures approximately 300 × 500 × 175 mm without its mounting bracket and weighs approximately 9.5 kg without the bracket. With the bracket installed, the specified weight is approximately 10.3 kg.
Mounting options include:
- Direct ceiling suspension
- Floor stands using the supplied mounting plates
- Optional wall mounting using the appropriate Bosch bracket
For ceiling or wall mounting, the radiator angle can be adjusted across multiple positions to optimize infrared coverage.
🛠️ Installation & Commissioning
Before installation, confirm the available mains voltage and the Integrus transmitter configuration.
Recommended commissioning steps:
- Mount the radiator securely.
- Connect the HF signal cable from the Integrus transmitter.
- Connect the AC mains supply.
- Check the radiator status indicators.
- Confirm the selected output-power setting.
- Verify infrared coverage throughout the required listening area.
- Test the associated infrared receivers and audio channels.
Allow adequate ventilation around the radiator and avoid blocking the infrared-emitting panels.
🔍 Troubleshooting
Radiator does not switch on:
Check the AC supply, mains cable, protection devices, and radiator status indicators.
No infrared audio signal:
Check the HF connection between the Integrus transmitter and radiator and verify that the transmitter is providing a carrier signal.
Reduced coverage:
Check radiator orientation, mounting position, output-power selection, and whether objects are obstructing the infrared radiation path.
Radiator enters standby:
Verify whether the transmitter is currently providing the carrier signal. Standby operation can occur when carrier waves are absent.
Over-temperature condition:
Inspect ventilation and radiator placement. The Integrus system incorporates temperature protection that can reduce radiator output when the IRED temperature becomes too high.
🧰 Maintenance
Regular maintenance should focus on the radiator panels, connectors, mounting hardware, and ventilation.
Recommended practices:
- Keep the infrared-emitting surfaces clean.
- Inspect HF connectors and cables.
- Check mounting brackets and safety hardware.
- Verify ventilation around the radiator.
- Check status LEDs during system operation.
- Inspect for overheating or abnormal discoloration.
- Test infrared receiver coverage periodically.
- Record radiator locations and system configuration.
🔄 Replacement Considerations
When replacing an LBB4512/00, verify the complete model number and system configuration. The LBB4512/00 is the high-power radiator rated for large-area coverage, while the LBB4511/00 is the lower-power model designed for smaller areas.
Do not substitute the two models solely based on physical appearance. Coverage requirements, power consumption, radiator quantity, and transmitter configuration should all be considered.
The radiator’s 180 W figure refers to electrical operating power consumption, while its optical output is specified separately as total optical peak intensity.
❓ FAQ
What is the BOSCH LBB4512/00?
It is a high-power infrared radiator used in the Bosch Integrus language distribution system.
What is the operating power consumption?
The specified operating power consumption is 180 W, with approximately 10 W in standby.
How large an area can it cover?
The Bosch specification gives coverage of up to approximately 2,600 m², depending on installation and environmental conditions.
How many infrared emitters are included?
The LBB4512/00 uses 480 infrared emitting diodes (IREDs).
Is 180 W the infrared optical output?
No. 180 W is the electrical operating power consumption. Bosch separately specifies total optical peak intensity as 24 W/sr.
What voltage does it use?
The radiator accepts 100–240 VAC, 50–60 Hz.
Can it be ceiling mounted?
Yes. It supports direct ceiling suspension and can also be installed on suitable floor stands or with an optional wall-mounting bracket.
What system does it belong to?
It belongs to the Bosch Integrus infrared language distribution system.
📦 Related BOSCH Models & Components
- BOSCH LBB4511/00 Medium-Power Infrared Radiator
- BOSCH LBB4512/00 High-Power Infrared Radiator
- BOSCH LBB3414/00 Wall Mounting Bracket
- BOSCH INT-TX04 Integrus Transmitter
- BOSCH INT-TX08 Integrus Transmitter
- BOSCH INT-TX16 Integrus Transmitter
- BOSCH INT-TX32 Integrus Transmitter
- BOSCH LBB4540/04 Integrus Pocket Receiver
- BOSCH LBB4550/08 Integrus Charging Unit
- BOSCH Integrus Infrared Language Distribution Components
✅ Product Summary
The BOSCH LBB4512/00 High-Power Infrared Radiator is a large-area infrared distribution unit designed for Bosch Integrus conference and multilingual audio systems. With 480 IREDs, 180 W operating consumption, 24 W/sr optical peak intensity, and coverage up to approximately 2,600 m², it is suited to large conference and interpretation environments.
For replacement projects, verify the LBB4512/00 model, HF transmitter compatibility, mounting arrangement, coverage requirements, and power supply before installation.
