CiM-550 IP Enabled Satellite Modem

Rev. 2

Preface

 

CD/CIM550.IOMCD/CIM550.IOM

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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