Comtech EF Data SDR-54A - Manual (Page 9)

SDR-54A Satellite Demodulator Revision 4
Preface MN/SDR54A.IOM
Figures
Figure 1-1. SDR-54A Desktop Unit.........................................................................................................................1–2
Figure 1-2. SDR-54A Rack Mount Unit ..................................................................................................................1–2
Figure 2-1. Interconnect Diagram ............................................................................................................................2–2
Figure 3-1. SDR-54A Desktop Unit (Rear and Front Panel) ...................................................................................3–2
Figure 3-2. SDR-54A Rack Mount Unit (Rear and Front Panel) .............................................................................3–2
Figure 3-3. Data Out (J4) Interface Jumpers ............................................................................................................3–4
Figure 3-4. RS-530 Jumper Location (J4) ................................................................................................................3–5
Figure 4-1. SDR-54A Desktop Unit (Front Panel)...................................................................................................4–1
Figure 4-2. SDR-54A Rack Mount Unit (Front Panel) ............................................................................................4–1
Figure 5-1. DEMUX 2/4 PCB ..................................................................................................................................5–2
Figure 5-2. Installation of DEMUX 2/4 Card...........................................................................................................5–4
Figure 5-3. DEMUX 8-Channel PCB.......................................................................................................................5–7
Figure 5-4. Installation of DEMUX 8-Channel Card ...............................................................................................5–9
Figure 6-1. Reed-Solomon Card...............................................................................................................................6–1
Figure 6-2. V.35 Self-Synchronizing Descrambler ..................................................................................................6–2
Figure 6-3. R-S Code Word Format .........................................................................................................................6–3
Figure 6-4. Installation of Reed-Solomon Card (AS/6285)......................................................................................6–5
Figure 6-5. Reed-Solomon Decoder Section Block Diagram...................................................................................6–7
Figure 6-6. BER Performance with Noise, Viterbi Decoder, and Reed-Solomon (Optional)..................................6–8
Figure 8-1. BPSK and QPSK BER Performance .....................................................................................................8–6
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