Specifications

SDM-300L3 Satellite Modem Revision 0
Preface MN/SDM300L3.IOM
vi
6.6.1 Multiples of the Frame Length............................................................................................6–14
6.6.2 Total Buffer Length ............................................................................................................6–14
6.6.3 Converting Between Bits and Seconds...............................................................................6–14
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
10.2.1 IBS Modem Defaults ..........................................................................................................10–4
10.3 IDR .............................................................................................................................................10–5
10.3.1 IDR Modem Defaults..........................................................................................................10–8
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