Table of Contents
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SDM-300L3 Satellite Modem
Preface
6.7
Frame/Multiframe Length.......................................................................................... 6-17
6.7.1
Multiples of the Frame Length .............................................................................................6-17
6.7.2
Total Buffer Length ..............................................................................................................6-17
6.7.3
Converting Between Bits and Seconds ...............................................................................6-17
CHAPTER 7.
FEC AND TURBO .......................................................................................... 7-1
7.1
Introduction.................................................................................................................. 7-1
7.2
Coding .......................................................................................................................... 7-2
7.3
Turbo Product Codec (Hardware Option) ................................................................. 7-2
7.3.1
Introduction ............................................................................................................................7-2
7.3.2
Mod/Demod Processing Delay ..............................................................................................7-3
7.3.3
Comparison of all TPC Modes...............................................................................................7-4
7.4
Uncoded Operation (No FEC)..................................................................................... 7-5
CHAPTER 8.
SYSTEM CHECKOUT .................................................................................... 8-1
8.1
System Checkout ........................................................................................................ 8-1
8.1.1
Interface Checkout ................................................................................................................8-2
8.1.2
Modulator Checkout ..............................................................................................................8-3
8.1.3
Demodulator Checkout..........................................................................................................8-5
CHAPTER 9.
FAULT ISOLATION........................................................................................ 9-1
9.1
Fault Isolation .............................................................................................................. 9-1
9.1.1
System Faults/Alarms............................................................................................................9-2
9.1.2
Faults/Alarms Display............................................................................................................9-2
9.1.3
Faults/Alarms Analysis ..........................................................................................................9-2
CHAPTER 10. OPEN NETWORK OPERATIONS............................................................. 10-1
10.1
Introduction................................................................................................................ 10-1
10.2
IBS............................................................................................................................... 10-1
10.3
IDR .............................................................................................................................. 10-5
10.4
Drop & Insert (D&I) .................................................................................................... 10-9
10.4.1
Description of D&I Operation.............................................................................................10-11
10.4.2
D&I Framing Formats ........................................................................................................10-14
10.4.3
D&I Modem Defaults .........................................................................................................10-17
10.5
2xADPCM Voice in 64 kbps IBS ............................................................................. 10-18
vi
Revision 1
MN/SDM300L3.IOM
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