Chapter 4 - Hardware Description
Audio+ Module Architecture
Audio+ represents a new family of audio cards. Audio+ has the same general card architecture as other modules. This has an impact on the number of ports supported by each card.
Audio |
| TDM Interface |
|
| |
Audio |
|
|
|
| |
Module |
|
|
| 32 Mbit/s | |
|
|
|
| ||
|
|
| QIFI | Link | |
Message |
| 32 Mbit/s | FPGA |
| |
module |
|
|
| ||
| Links |
|
| ||
|
|
|
| ||
|
| Audio |
| Audio | |
|
| Codec |
| ||
|
|
| Controller | ||
|
| DSP |
| ||
|
|
| Unit | ||
|
|
|
| ||
|
| x 7 |
| DSP | |
|
|
| PCI |
| |
|
| Memory | BUS | Memory | |
|
|
| |||
Front | Card |
| LAN | PMC | |
Panel | Memory | ||||
Manager | |||||
LEDs |
| I/F | I/F | ||
|
| ||||
Data |
|
|
| PCI | |
Module |
|
|
| BUS | |
|
| HDLC |
|
| |
|
| I/F |
|
|
Figure 4-22: 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
