SDM-9000 Satelite Modem
Preface
Rev. 4
v
4.2.3.4 RX Interface Faults ................................................................................................................................... 4–29
4.2.3.5 Common Equipment Faults ....................................................................................................................... 4–30
4.2.3.6 Backward Alarms ...................................................................................................................................... 4–30
4.2.4 Stored Faults/Alarms ........................................................................................................................................ 4–33
4.2.5 Utility................................................................................................................................................................ 4–35
4.2.5.1 Utility Modulator....................................................................................................................................... 4–37
4.2.5.2 Utility Demodulator .................................................................................................................................. 4–39
4.2.5.3 Utility Interface ......................................................................................................................................... 4–42
4.2.5.4 Utility System............................................................................................................................................ 4–45
4.2.5.5 Utility Modem Type .................................................................................................................................. 4–49
4.2.5.6 Utility Factory Setup ................................................................................................................................. 4–50
4.3 Clocking Options.................................................................................................................................................... 4–53
4.3.1 G.703 Interface Clocking.................................................................................................................................. 4–53
4.3.1.1 TX Timing................................................................................................................................................. 4–53
4.3.1.2 RX Timing................................................................................................................................................. 4–53
4.3.1.2.1 RX Timing (with Buffer) ................................................................................................................... 4–53
4.3.1.2.2 RX Timing (without Buffer) .............................................................................................................. 4–53
4.3.2 ECL/MIL-STD-188 Interface Clocking ........................................................................................................... 4–54
4.3.2.1 TX Timing................................................................................................................................................ 4–54
4.3.2.2 RX Timing................................................................................................................................................. 4–54
4.3.2.2.1 RX Timing (with Buffer) ................................................................................................................... 4–54
4.3.2.2.2 RX Timing (without Buffer) .............................................................................................................. 4–54
CHAPTER 5. THEORY OF OPERATION ........................................................................ 5–1
5.1 Display/M&C.......................................................................................................................................................... 5–1
5.1.1 Description........................................................................................................................................................ 5–1
5.1.2 Theory of Operation ......................................................................................................................................... 5–2
5.2 Modulator ............................................................................................................................................................... 5–4
5.2.1 Description........................................................................................................................................................ 5–4
5.2.2 Specifications.................................................................................................................................................... 5–6
5.2.3 Theory of Operation ......................................................................................................................................... 5–7
5.2.4 Theory of Modulation Types ............................................................................................................................ 5–9
5.2.4.1 Description ................................................................................................................................................ 5–9
5.2.4.2 QPSK Encoding/Modulation..................................................................................................................... 5–9
5.2.4.3 8PSK Encoding/Modulation...................................................................................................................... 5–10
5.2.4.4 16QAM Encoding/Modulation.................................................................................................................. 5–10
5.3 Demodulator ........................................................................................................................................................... 5–11
5.3.1 Description........................................................................................................................................................ 5–11
5.3.2 Specifications.................................................................................................................................................... 5–11
5.3.3 Theory of Operation ......................................................................................................................................... 5–13
5.4 Viterbi Decoder ...................................................................................................................................................... 5–16
5.4.1 Description........................................................................................................................................................ 5–16
5.4.2 Specifications.................................................................................................................................................... 5–16
5.4.3 Theory of Operation ......................................................................................................................................... 5–17
5.5 Interface .................................................................................................................................................................. 5–18
5.5.1 Description........................................................................................................................................................ 5–18
5.5.2 Digital Interface Specifications ........................................................................................................................ 5–19
5.5.2.1 G.703 ......................................................................................................................................................... 5–20
Содержание SDM-9000
Страница 1: ...Part Number MN SDM9000 IOM Revision 4 SDM 9000 Satellite Modem Installation and Operation Manual...
Страница 2: ......
Страница 5: ...8 Mbit s w IDR Figure 1 7 16QAM BER Performance Curves with Reed Solomon Filename T_ERRATA 3...
Страница 8: ......
Страница 27: ...SDM 9000 Satellite Modem Introduction Rev 4 1 5 Figure 1 3 SDM 9000 Block Diagram...
Страница 42: ...Introduction SDM 9000 Satellite Modem 1 20 Rev 4 This page is intentionally left blank...
Страница 64: ...Configuration SDM 9000 Satellite Modem 3 6 Rev 4 JP1 Figure 3 4 Interface PCB AS 3971...
Страница 65: ...SDM 9000 Satellite Modem Configuration Rev 4 3 7 Figure 3 5 Interface PCB AS 4477...
Страница 66: ...Configuration SDM 9000 Satellite Modem 3 8 Rev 4 JP1 JP6 JP7 Figure 3 6 Interface PCB AS 5618...
Страница 70: ...Configuration SDM 9000 Satellite Modem 3 12 Rev 4 Figure 3 7 Nyquist Filter Installation...
Страница 83: ...SDM 9000 Satellite Modem Operation Rev 4 4 9 This page is intentionally left blank...
Страница 87: ...SDM 9000 Satellite Modem Operation Rev 4 4 13 This page is intentionally left blank...
Страница 104: ...SDM 9000 Satellite Modem Operation Rev 4 4 31 This page is intentionally left blank...
Страница 107: ...Operation SDM 9000 Satellite Modem 4 34 Rev 4 This page is intentionally left blank...
Страница 124: ...SDM 9000 Satellite Modem Operation Rev 4 4 51 Figure 4 17 RF Loopback Figure 4 18 IF Loopback...
Страница 133: ...SDM 9000 Satellite Modem Theory of Operation Rev 4 5 5 Figure 5 3 Modulator RF Section Block Diagram...
Страница 150: ...Theory of Operation SDM 9000 Satellite Modem 5 22 Rev 4 Figure 5 6 Interface Block Diagram...
Страница 158: ...Theory of Operation SDM 9000 Satellite Modem 5 30 Rev 4 This page is intentionally left blank...
Страница 167: ...SDM 9000 Satellite Modem Maintenance Rev 4 6 9 WITH NOISE WITHOUT NOISE Figure 6 4 Typical Eye Constellations...
Страница 186: ...Maintenance SDM 9000 Satellite Modem 6 28 Rev 4 This page is intentionally left blank...
Страница 218: ...Options SDM 9000 Satellite Modem A 32 Rev 4 This page is intentionally left blank...
Страница 242: ...Remote Control Operation SDM 9000 Satellite Modem B 24 Rev 4 ref SE_ command...
Страница 254: ...Glossary SDM 9000 Satellite Modem g 6 Rev 4 This page is intentionally left blank...
Страница 256: ...2114 WEST 7TH STREET TEMPE ARIZONA 85281 USA 480 333 2200 PHONE 480 333 2161 FAX...
