1. Introduction
The AU-D21 is designed to select from two digital Optical inputs to one output,
using Optical (Toslink) cables. The Optical cables connected to both ends of
the unit can run up to 5 meters whilst still providing a reliable and loss-less
audio signal transmission. The product is compact and easy to install, and is
recommended for either home or professional audio switching.
2. Main Features
• Supports S/PDIF standard of digital audio transmission.
• Supports uncompressed 2-channel LPCM (Linear Pulse Code Modulation)
audio signal.
• Supports compressed 2-channel and multi-channel Dolby and DTS audio
signal.
• Provides electromagnetic noise-free transmission.
• Easy to install and simple to operate.
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