ADM-19 Audio Distribution & Monitoring Unit

Designed for Redundancy, Built for Flexibility

The ADM-19 is a versatile audio distribution and monitoring device built for 1+1 redundant audio broadcasting systems, yet fully adaptable to any professional audio environment. With support for analog, digital, and MPX audio formats, it ensures seamless signal routing, backup, and real-time monitoring — both locally and remotely.

Key Features

• Audio Format Compatibility
  Supports Analog (XLR Left/Right Balanced), AES/EBU, MPX, and RDS signals.

• 1 Input, 2 Output Distribution
  Feeds a single audio source into two outputs — ideal for backup or parallel broadcasting systems.

• Built-In Monitoring Tools

  • Local monitoring via VU meter and headphone output

  • Remote monitoring through the integrated web server

  • Audio stream analysis over IP

• Remote Management

  • Compatible with Onair Cloud System (osc.onair.com.tr)

  • Full control via Web GUI

  • SNMP protocol support for network integration

• Playback Features

  • Stream remote URLs and play audio files

  • VLC-like media compatibility for flexible monitoring

• GPIO Control for Transmitter Management
  Provides hardware-based control for transmitter status or switching via GPIO.

Typical Use Cases

• 1+1 Redundant Broadcast Chains

• Live Audio Monitoring and Backup Feeds

• Remote Transmitter Site Management

• Studio to Transmitter Link (STL) Monitoring

Technical Specifications

Electrical:

• Power Input: 88–264V AC

• USB Power: 5V, 1.2A (for modem or accessories)

Network & Connectivity:

• Wi-Fi: 2.4GHz, up to 150 Mbps (up to 254 clients)

• 3G/4G USB Modem Support: USB 2.0

• Ethernet: 10/100 Mbps LAN connection

Audio I/O:

• Main and Remote Monitoring: 2 × 6.35mm stereo jacks

• RCA Output: 1 × RCA for main audio monitoring

• Audio Routing: Input directly routed to both outputs (no delay)

Control Interface:

• Web server for full system access

• SNMP and Onair Cloud compatibility

• Physical buttons and LED indicators for quick local status

Form Factor:

• Compact rack-mountable design

• Lightweight and easy to integrate into any broadcast rack

Reliable, Simple, and Network-Ready

Whether you’re building a resilient broadcast system or upgrading your monitoring infrastructure, the ADM-19 delivers powerful performance with simple integration — making it a dependable component for any professional audio operation.