Comtech EF Data SDM-9000 - Manual (Page 16)

Preface SDM-9000 Satelite Modem
viii Rev. 4
Figures
Figure 1-1. SDM-9000 .............................................................................................................................................. 1–1
Figure 1-2. Modular Construction ............................................................................................................................. 1–4
Figure 1-3. SDM-9000 Block Diagram ..................................................................................................................... 1–5
Figure 1-4. Viterbi BER Performance Curves (QPSK) ............................................................................................. 1–13
Figure 1-5. Reed-Solomon BER Performance Curves (QPSK)................................................................................. 1–15
Figure 1-6. 8PSK BER Performance Curves (with Reed-Solomon) ......................................................................... 1–17
Figure 1-7. 16QAM BER Performance Curves (with Reed-Solomon) ..................................................................... 1–18
Figure 1-8. SDM-9000 Typical Spectral Occupancy................................................................................................. 1–19
Figure 2-1. SDM-9000 Dimensional Drawing .......................................................................................................... 2–4
Figure 2-2. SDM-9000 Rear Panel View................................................................................................................... 2–5
Figure 3-1. Display/M&C PCB ................................................................................................................................. 3–2
Figure 3-2. Modulator PCB (AS/3969) ..................................................................................................................... 3–3
Figure 3-3. Demodulator PCB (AS/3970) ................................................................................................................. 3–4
Figure 3-4. Interface PCB (AS/3971) ........................................................................................................................ 3–6
Figure 3-5. Interface PCB (AS/4477) ........................................................................................................................ 3–7
Figure 3-6. Interface PCB (AS/5618) ........................................................................................................................ 3–8
Figure 3-7. Nyquist Filter Installation ....................................................................................................................... 3–12
Figure 4-1. SDM-9000 Front Panel View.................................................................................................................. 4–1
Figure 4-2. Main Menu.............................................................................................................................................. 4–4
Figure 4-3. Configuration Modulator Menu .............................................................................................................. 4–6
Figure 4-4. Configuration Demodulator Menu .......................................................................................................... 4–10
Figure 4-5. Configuration Interface Menu................................................................................................................. 4–14
Figure 4-6. Configuration Save Menu ....................................................................................................................... 4–20
Figure 4-7. Configuration Recall Menu..................................................................................................................... 4–21
Figure 4-8. Monitor Menu ......................................................................................................................................... 4–22
Figure 4-9. Faults/Alarm Menu ................................................................................................................................. 4–24
Figure 4-10. Stored Faults/Alarms Menu .................................................................................................................. 4–32
Figure 4-11. Utility Modulator Menu ........................................................................................................................ 4–36
Figure 4-12. Utility Demodulator Menu.................................................................................................................... 4–38
Figure 4-13. Utility Interface Menu........................................................................................................................... 4–40
Figure 4-13. Utility Interface Menu Continued ......................................................................................................... 4–41
Figure 4-14. Utility System Menu ............................................................................................................................. 4–44
Figure 4-15. Utility Modem Type Menu ................................................................................................................... 4–48
Figure 4-16. Utility Factory Setup Menu................................................................................................................... 4–50
Figure 4-17. RF Loopback......................................................................................................................................... 4–51
Figure 4-18. IF Loopback .......................................................................................................................................... 4–51
Figure 4-19. Baseband Loopback .............................................................................................................................. 4–52
Figure 4-20. Interface Loopback ............................................................................................................................... 4–52
Figure 4-21. G.703 Interface Clocking Diagram ....................................................................................................... 4–55
Figure 4-22. ECL/MIL-STD-188 Interface Clocking Diagram ................................................................................. 4–55
Figure 5-1. Display/M&C Block Diagram ................................................................................................................ 5–2
Figure 5-2. Modulator Baseband Section Block Diagram ......................................................................................... 5–4
Figure 5-3. Modulator RF Section Block Diagram.................................................................................................... 5–5
Figure 5-4. Demodulator Block Diagram .................................................................................................................. 5–12
Figure 5-5. Viterbi Decoder Block Diagram ............................................................................................................. 5–16
Figure 5-6. Interface Block Diagram......................................................................................................................... 5–22
Figure 5-7. Baseband Loopback Block Diagram....................................................................................................... 5–26
Figure 5-8. Interface Loopback Block Diagram ........................................................................................................ 5–27
Figure 6-1. Fault Isolation Test Setup ....................................................................................................................... 6–2
Figure 6-2. Typical Output Spectrum (with Noise) ................................................................................................... 6–4
Figure 6-3. Typical Output Spectrum (without Noise) .............................................................................................. 6–4