CDM-600 Satellite Modem
Preface
7.2
Viterbi .......................................................................................................................................... 7-1
7.3
Sequential..................................................................................................................................... 7-2
7.4
Reed-Solomon Outer Codec....................................................................................................... 7-3
7.5
7.6
7.7
7.7.1
Introduction........................................................................................................................... 7-6
7.7.2
LDPC versus TPC................................................................................................................. 7-7
7.7.3
7.8
CHAPTER 9.
OPEN NETWORK OPERATIONS ..................................................................9-1
9.1
Introduction................................................................................................................................. 9-1
9.2
IBS ................................................................................................................................................ 9-1
9.2.1
9.2.2
IBS Framing.......................................................................................................................... 9-2
9.2.3
9.2.4
IBS Scrambling ..................................................................................................................... 9-2
9.3
Drop and Insert ........................................................................................................................... 9-2
9.3.1
9.3.2
D&I Framing......................................................................................................................... 9-3
9.4
IDR ............................................................................................................................................... 9-4
9.4.1
9.4.2
CHAPTER 10.
CLOCK MODES AND DROP AND INSERT (D&I) ....................................10-1
10.1
Transmit Clocking .................................................................................................................... 10-1
10.1.1
Internal Clock...................................................................................................................... 10-1
10.1.2
Tx Terrestrial ...................................................................................................................... 10-2
10.1.3
Rx Loop-Timed, RX=TX.................................................................................................... 10-2
10.1.4
10.1.5
External Clock .................................................................................................................... 10-2
10.2
Receive Clocking ....................................................................................................................... 10-3
10.2.1
10.2.2
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Revision 7
MN/CDM600.IOM