Comtech EF Data CIM-550 Especificaciones Pagina 9

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CiM-550 IP Enabled Satellite Modem Rev. 2
Preface CD/CIM550.IOMCD/CIM550.IOM
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5.5.4 Instruction Code Qualifier ............................................................................................... 58
5.5.5 Message Arguments......................................................................................................... 60
5.5.6 End Of Packet .................................................................................................................. 60
CHAPTER 6. THEORY OF OPERATION..................................................................81
6.1 Functional Description ......................................................................................................... 81
6.2 Offset QPSK Operation........................................................................................................ 82
6.3 EIA-232 Operation................................................................................................................ 83
6.3.1 ASYNC EIA-232 Specifications ..................................................................................... 83
6.3.2 Setup ................................................................................................................................ 83
6.3.3 CLOCKING..................................................................................................................... 84
6.3.4 Transmit and Receive Clocking....................................................................................... 86
6.4 AUPC (Automatic Uplink Power Control)......................................................................... 88
6.4.1 Setting AUPC Parameters................................................................................................ 88
6.4.2 Compensation Rate.......................................................................................................... 90
6.4.3 Monitoring ....................................................................................................................... 90
CHAPTER 7. FORWARD ERROR CORRECTION OPTIONS ..................................91
7.1 Introduction........................................................................................................................... 91
7.2 Viterbi .................................................................................................................................... 91
7.3 Sequential............................................................................................................................... 92
7.4 Turbo Product Codec (Option)............................................................................................ 93
7.5 Uncoded Operation (No FEC) ............................................................................................. 96
CHAPTER 8. EDMAC CHANNEL............................................................................ 105
8.1 Theory Of Operation.......................................................................................................... 105
8.1.1 On the transmit side:...................................................................................................... 105
8.1.2 On the receive side......................................................................................................... 106
8.2 M&C Connection................................................................................................................ 107
8.3 Setup Summary................................................................................................................... 108
CHAPTER 9. EB/NO MEASUREMENT...................................................................109
9.1 Measuring Eb/No ................................................................................................................ 109
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