Table of Contents
Advertisement
CiM-550 IP Enabled Satellite Modem
Preface
5.5.4 Instruction Code Qualifier ............................................................................................... 58
5.5.5 Message Arguments......................................................................................................... 60
5.5.6 End Of Packet .................................................................................................................. 60
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
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
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
EB/NO MEASUREMENT................................................................... 109
9.1 Measuring Eb/No ................................................................................................................ 109
v
CD/CIM550.IOMCD/CIM550.IOM
Rev. 2
Advertisement
Table of Contents
