Digital Voice Systems VC-20-ATC-10B Especificaciones descargar pdf (Pagina 5)

FAA20 Embedded NEXCOM Vocoder

Board Manual

This manual has been prepared for the Federal Aviation Administration.

FA100-00107 (March 2004) – Rev 1.0.0 Page v

List of Figures

Figure 1: FAA20 Vocoder Board ...................................................................................................... 3

Figure 2: DIN 41612 Connector Diagram......................................................................................... 5

Figure 3: DB9F Connector Diagram................................................................................................. 9

Figure 4: VC20 Forced Configuration Items................................................................................... 18

Figure 5: DEMO Forced Configuration Items................................................................................. 18

Figure 6: PCM Interface Timing Diagram....................................................................................... 19

Figure 7: Nibble Interface Frame Format....................................................................................... 20

Figure 8: NIB Interface Timing Diagram......................................................................................... 21

Figure 9: Voice Processing Flow Diagram..................................................................................... 23

Figure 10: Linear Voice Mixer......................................................................................................... 24

Figure 11: Packet Voice Router...................................................................................................... 25

Figure 12: Rate Adapter Block Diagram......................................................................................... 26

Figure 13: Low Pass Filter Characteristics..................................................................................... 27

Figure 14: Vocoder RUN Signal and Voice Delays........................................................................ 30

Figure 15: FAA20 Hardware Block Diagram .................................................................................. 35

Figure 16: Program Memory Map................................................................................................... 36

Figure 17: Data Memory Map......................................................................................................... 37

Figure 18: Input/Output Memory Map ............................................................................................ 37

Figure 19: Flash Memory Map........................................................................................................ 38

Figure 20: Software Architecture Diagram ..................................................................................... 40

Figure 21: TEST SWEEP Example................................................................................................ 47

Figure 22: Software Upgrade (Standard Mode)............................................................................. 50

Figure 23: Software Upgrade (Acknowledgement Mode).............................................................. 52

Figure 24: FAA20 Test Vector Setup ............................................................................................. 54

Figure 25: DAT2LIN Utility Command Syntax................................................................................ 55

Figure 26: ASCII Linear Format (L0).............................................................................................. 55

Figure 27: BIT2CMP Utility Command Syntax............................................................................... 56

Figure 28: ASCII Compressed Formats (C0 and C1).................................................................... 56

Figure 29: Built-In Help (Command List)........................................................................................ 59

Figure 30: Built-In Help (Command List)........................................................................................ 59

List of Tables

Table 1: DIN Signals .......................................................................................................................... 6

Table 2: DB9F Signals ....................................................................................................................... 9

Table 3: Audio Jack Signals ............................................................................................................ 10

Table 4: LED Indicators*.................................................................................................................. 11

Table 5: Switch Controls.................................................................................................................. 12

Table 6: Typical Delay Values*........................................................................................................ 30

Table 7: Virtual Indicator List.......................................................................................................... 31

Table 8: Thread List........................................................................................................................ 41

Table 9: Troubleshooting Table....................................................................................................... 44

Table 10: FAA20 Command Summary.......................................................................................... 57

1 2 3 4 5 6 7 8 9 10 ... 108 109

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Digital Voice Systems VC-20-ATC-10B Especificaciones Pagina 5

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