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Comtech EF Data SDR-54A User Manual

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SDR-54A Satellite Demodulator

Revision 4

Preface

MN/SDR54A.IOM

CHAPTER 4. OPERATION........................................................................................ 4–1

4.1 Front

Panel..................................................................................................................................................4–1

4.1.1 Indicators .............................................................................................................................................4–2
4.1.2 LNB

Power ..........................................................................................................................................4–2

4.2 Configuration Setup ...................................................................................................................................4–2

4.3 Cooling

Fan.................................................................................................................................................4–3

CHAPTER 5. DEMUX OPTION ................................................................................. 5–1

5.1 DEMUX

Overview .....................................................................................................................................5–1

5.2 DEMUX 2/4-Channel (Option) .................................................................................................................5–2

5.2.1 Description...........................................................................................................................................5–2
5.2.2 Installation ...........................................................................................................................................5–3
5.2.3 DEMUX

2/4-Channel Specification....................................................................................................5–5

5.2.4

Tributary Data Interface Connector RS-422 (J4) ................................................................................5–5

5.3 DEMUX 8-Channel (Option).....................................................................................................................5–7

5.3.1 Description...........................................................................................................................................5–7
5.3.2 Installation ...........................................................................................................................................5–8
5.3.3

DEMUX 8-Channel Specification .....................................................................................................5–10

5.3.4

Tributary Data Interface Connector RS-422 (J5 and J6) ...................................................................5–11

CHAPTER 6. REED-SOLOMON ............................................................................... 6–1

6.1 Introduction ................................................................................................................................................6–1

6.2 Descrambler ................................................................................................................................................6–2

6.3 Deinterleaver...............................................................................................................................................6–3

6.4 Reed-Solomon

Codec .................................................................................................................................6–4

6.5 Reed-Solomon

Installation.........................................................................................................................6–4

6.6 Functionality ...............................................................................................................................................6–6

6.6.1 Correlator.............................................................................................................................................6–6
6.6.2 Error

Detection ....................................................................................................................................6–6

6.7 BER Performance.......................................................................................................................................6–7

6.7.1 Specification ........................................................................................................................................6–8
6.7.2 Interface

Connector .............................................................................................................................6–9

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