ONAIR AS-18 Audio Switch

The AS-18 Audio Switch is a professional audio routing and monitoring unit designed for N+1 transmitter projects. It enables seamless switching of audio and RDS inputs from a faulty transmitter to a redundant transmitter, ensuring uninterrupted broadcast operation.

With 8 audio inputs and 8 audio outputs, plus an integrated audio player and URL streaming capability, the AS-18 provides flexible audio management. Operators can control switching manually via the front panel LCD/keys or remotely through RS232, WiFi, or Ethernet.

Key Functions

• Audio Switching:
• 8 inputs (7 external, 1 integrated audio player/URL)
• 8 outputs (7 external, 1 switched channel for redundant transmitter)
• Monitoring:
• Built-in speaker for listening to selected audio channels
• Front panel VU-meter for input and output audio levels
• Indicator LEDs show real-time audio levels
• Control Options:
• Manual via front panel LCD/keys
• Remote via RS232, RS485, WiFi, Ethernet, or web interface
• Compatible with Onair Cloud System (osc.onair.com.tr)
• Redundancy Integration:

• Works with coaxial switch and redundant transmitter for automatic failover
• Integrated audio player can serve as backup input

Technical Specifications

Advantages

• Reliable N+1 redundancy for transmitter audio and RDS switching.
• Flexible monitoring with headphone jack, speaker, and VU-meters.
• Hot-pluggable modular design allows expansion from 2 to 8 inputs.
• Integrated backup audio player ensures uninterrupted broadcasting.
• Remote control capability for modern broadcast workflows