Comtech EF Data SMS-458B - Manual (Page 10)

SMS-458B Modem Protection Switch Revision 2
Preface MN/SMS458B.IOM
viii
Figures
Figure 1-1. SMS-458B.....................................................................................................................................1–1
Figure 1-2. System Block Diagram .................................................................................................................1–3
Figure 1-3. SMS-458B Upper-front Section Interior.......................................................................................1–5
Figure 1-4. SMS-458B IF Switching Matrix ...................................................................................................1–5
Figure 1-5. Lower Section Interconnect Diagram ...........................................................................................1–6
Figure 1-6. SMS-458B Block Diagram ...........................................................................................................1–7
Figure 2-1. Typical Switch Rack Installation ..................................................................................................2–3
Figure 2-2. SMS-458B Rear Panel View.........................................................................................................2–5
Figure 3-1. SMS-458B Front Panel View .......................................................................................................3–2
Figure 3-2. Display Map..................................................................................................................................3–5
Figure 3-3. SMS-458B Switching Algorithm Flow Chart Demodulator/Modem .........................................3–20
Figure 3-4. SMS-458B Switching Algorithm Flow Chart Modulator ...........................................................3–21
Figure 4-1. Monitor and Control .....................................................................................................................4–2
Figure 4-2. Prime IDR/G.703 Interface Switch .............................................................................................4–14
Figure 4-3. Backup IDR/G.703 Interface Switch ..........................................................................................4–14
Figure 4-4. Address Decoder/Driver ..............................................................................................................4–15
Figure 4-5. Address Decoder/Driver .............................................................................................................4–16
Figure 4-6. Switch Driver ..............................................................................................................................4–18
Figure 4-7. IF Switch Driver Block Diagram ................................................................................................4–18
Figure 4-8. Data Switch Controller Card.......................................................................................................4–19
Figure 4-9. IF Switch .....................................................................................................................................4–21
Figure 4-10. Online Telemetry ......................................................................................................................4–22
Figure 4-11. Online Telemetry Block Diagram .............................................................................................4–23
Figure A-1. SMS-458B for SDM-2020 Modulator (TX only) with ECL/HSSI Data Interface .................... A–4
Figure A-2. SMS-458B for SDM-2020 Modulator (TX only) with ECL/HSSI Data Interface ..................... A–5
Figure A-3. SMS-458B for SDM-2020 Modulator (TX only) with G.703 Data Interface............................. A–7
Figure A-4. SMS-458B for SDM-2020 Modulator (TX only) with G.703 Data Interface............................. A–8
Figure A-5. SMS-458B for SDM-9000 Satellite Modem with 50-Pin Data Interface ................................. A–10
Figure A-6. SMS-458B for SDM-9000 Satellite Modem with 50-Pin Data Interface ................................. A–11
Tables
Table 1-1. SMS-458B Specification ................................................................................................................1–9
Table 2-1. Rear Panel Connections..................................................................................................................2–4
Table 4-1. Relay-Remote Command Words....................................................................................................4–7
Table 4-2. Modem Target Words ....................................................................................................................4–7
Table 4-3. Relay-Remote Command Functions...............................................................................................4–8
Table 4-4. Relay-Remote Command Examples...............................................................................................4–9
Table A-1. Equipment List ............................................................................................................................. A–2
Table A-2. Cable Assembly............................................................................................................................ A–3
Table A-3. Cable Connection ......................................................................................................................... A–3
Table A-4. Cable Assembly............................................................................................................................ A–6
Table A-5. Cable Connection ......................................................................................................................... A–6
Table A-6. Cable Assembly............................................................................................................................ A–9
Table A-7. Cable Connection ......................................................................................................................... A–9