DMR Audio Distribution Unit | Multi-Device Connection for Digital Radios

The DMR Audio Distribution Unit (Überleitverteiler DMR) is a professional interface designed for connecting multiple DMR control devices in parallel to a single radio system. This unit enables seamless multi-device communication, ensuring proper impedance matching and signal distribution in mission-critical radio networks.

Key Features:

• Multi-Device Connectivity – Supports 1 to 9 DMR control devices connected to a single radio system.
• 600 Ohm Impedance Matching – Ensures stable audio signal transmission for all connected devices.
• Parallel Multi-Wire Communication – Allows multiple devices to communicate with a single radio in a synchronized manner.
• RS485 & Audio Signal Routing – Distributes both audio and data signals efficiently.
• Cascading Capability – Multiple units can be cascaded for larger network expansions (custom configurations available).
• Standard Patch Cable Compatibility – Simplifies installation with RJ45-based wiring.

Available Versions & SKUs:

• ÜLV-2 – Supports 1-2 control devices (6 dB signal attenuation).
• ÜLV-3 – Supports 1-3 control devices (9.5 dB signal attenuation).
• ÜLV-4 – Supports 1-4 control devices (12 dB signal attenuation).
• ÜLV-9 – Supports 1-9 control devices (19.5 dB signal attenuation).

Connection & Setup:

Standard Configuration

The Überleitverteiler DMR connects multiple control devices (ST1-ST9) to a single radio system (ST0). Each control device has a dedicated port, ensuring reliable audio and RS485 signal distribution.

Cascading for Large Installations

For large-scale deployments, multiple DMR Audio Distribution Units can be cascaded to support additional control devices. This option is available as a custom order.

Patch Cable Connectivity

All devices are connected using standard RJ45 patch cables, allowing quick and simple installation.

Application Example:

Each connected DMR control device communicates with the central radio system using parallel multi-wire connections. This setup ensures that all devices receive the same audio and control signals without signal degradation.

Why Choose the DMR Audio Distribution Unit?

• Ensures stable, interference-free communication between multiple DMR control devices and a single radio.
• Supports standardized 600 Ohm impedance matching.
• Compatible with existing DMR radio control infrastructure.
• Expandable design allows scalability for large radio networks.

Applications:

• 🔹 Public Safety & Emergency Response – Multiple dispatcher consoles connected to a central radio system.
• 🔹 Industrial & Utility Operations – Control multiple radio terminals in large-scale facilities.
• 🔹 Transportation & Logistics – Integrated communication systems for railways, aviation, and maritime networks.