
MGC Hardware and Installation Manual
Audio+ Module Architecture
Audio+ represents a new family of audio cards. Audio+ has the same general card architecture as the audio card, but with a different number of processors. This has an impact on the number of ports supported by each card.
Audio  | TDM Interface  | 
Audio  | 
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Module  | 
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  | 32 Mbit/s  | |
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  | QIFI  | Link  | |
Message  | 
  | 32 Mbit/s  | FPGA  | 
  | |
module  | 
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  | Links  | 
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  | Audio  | 
  | Audio  | |
  | 
  | Codec  | 
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  | Controller  | ||
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  | DSP  | 
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  | Unit  | ||
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  | x 7  | 
  | DSP  | |
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  | PCI  | 
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  | Memory  | BUS  | Memory  | |
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Front  | Card  | 
  | LAN  | PMC  | |
Panel  | Memory  | ||||
Manager  | |||||
LEDs  | 
  | I/F  | I/F  | ||
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Data  | 
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  | PCI  | |
Module  | 
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  | BUS  | |
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  | HDLC  | 
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  | I/F  | 
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Figure 4-30:  Audio+ Module
Audio + Port Capacities
The system’s working mode affects its system capacity: Medium Band (without Siren14) and Wide Band (with Siren14). The Medium and Wide Band settings are defined in the system.cfg file.
For Medium Band, the flag is set to
AUDIO_PLUS_FREQUENCYBAND_MODE=MB.
For Wide Band, the flag is set to