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DCN Next Generation Technology

DCN Next Generation Technology. DCN Next Generation Technology. I & U Instructions. DCN Next Generation Technology. Digital signal processing and transmission via an advanced digital technology.

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DCN Next Generation Technology

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  1. DCN Next Generation Technology DCNNG SA SD Technology

  2. DCN Next Generation Technology I&U Instructions DCNNG SA SD Technology

  3. DCN Next Generation Technology • Digital signal processing and transmission via an advanced digital technology. • Signal transmission and processing is handled by proven digital audio technology. This technology is implemented into dedicated ICs handling digital audio processing as well as analogue-to-digital and digital-to-analogue conversion. • Other ICs specially developed for this application include dedicated protocol converter chips. The system combines the highest levels of functionality and performance in an extremely compact design. I&U Instructions DCNNG SA SD Technology

  4. DCN Next Generation Technology • Other ICs specially developed: • ACN-1 (Audio Communication Network-1) is a Slave Protocol Transceiver located in all active DCN-units • Receiving single-channel downlinkAudio-data and Control-data • Transmits single-channel uplinkAudio-data and Control-data. • ACN-2 Is a Master Protocol Transceiver located only in the CCU • Transmits multi-channel downlinkAudio-data and Control-data • Receives multi-channel uplinkAudio-data and Control-data from all the slaves. I&U Instructions DCNNG SA SD Technology

  5. DAC ADCDAC ADCDAC ACN-1 DAP N e t w o r k c a b l i n g ADCDAC ACN-1 DAP DSP DAC DAC Interpreter Desk Concentus Delegate unit Dual Delegate Interface ACN-1 µProc. e.g. Hall Display DAC DAP RS-232 Data Distribution Board Channel selector unit ACN-1 Voting unit DCN Next Generation block diagram e.g. Audio Matrix/Remote Interpretation 2x RS232 PersonalComputer & ExternalDevices ACN-2 DUART DAP DSP Audio Expander FLASH EPROM Control Panel µProc. RAM I/O - 1 I/O - 2 Central Control Unit I&U Instructions DCNNG SA SD Technology

  6. DCN Next Generation Network Cabling Uplink ACN-2 Downlink DAP ACN-1 I&U Instructions DCNNG SA SD Technology

  7. DCN Next Generation Addresses • Addresses • Active unit addresses 245 • Delegate • Chairman • Voting • Interpreter Units • Passive units addresses • Electronic Channel Selector1 (232) • Data Distribution Board8 (248..255) • Ambient microphone via 1 (238) • Dual Delegate Interface I&U Instructions DCNNG SA SD Technology

  8. DCN Next Generation Audio Channels • Capacity • Audio uplink channels 32 (20 kHz bandwidth) • Audio downlink channels 32 (20 kHz bandwidth) • Intercom uplink channels 4 (3.5 kHz bandwidth) • Intercom downlink channels 4 (3.5 kHz bandwidth) • Quality • Frequency characteristics 30 Hz - 20 kHz -3dBat nominal level • Harmonic distortion < 0.5 % at 1kHz at -3dB of the max. input level • Signal-to-noise ratio > 89 dBA at max. output level • Crosstalk attenuation > 85 dB at 1kHz at max. output level • Dynamic range > 85 dB I&U Instructions DCNNG SA SD Technology

  9. Standard Audio Routing Channel Assignments • The Digital Congress Network distributes 32 digital channels audio: • Floor • Interpretation • Intercom Downlink Channels Uplink Channels DCNNG SA SD Technology

  10. DCN Next Generation Technology End of section SA SD Menu DCNNG SA SD Technology

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