The AUD-251H Audio Panel and Intercom is very similar to the better-known AMR-350 from the reputable Collins Microline series. The difference is that instead of a Marker Beacon Receiver and Indicator, the AUD-251H contains a basic Intercom.
The AUD-251H has independent speaker and headphone amplifiers, and provides fail-safe operation. If either amplifier were to fail, full operation is still possible with the other.
Easy-to-use toggle switches are used to select audio for headphones or the cabin speaker. The switches let you see your selected audio source at a glance.
The AUD-251H has the following switch positions:
- 2 VHF COMMs
- HF COMM
- 2 NAVs
- Marker Beacon