Radyne OM20 Specifications Page 25
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DMD1050 Satellite Modem Board Theory of Operation
FPGA. There is no limit to the number of digital logic configurations available to the FPGA,
aside from the amount of Flash memory available to the system microprocessor for storage of
configuration files.
The DMD1050 Baseband Processing Printed Circuit Card provides a flexible architecture that
allows many different modes of terrestrial and satellite framing, various FEC options, digital
voice processing, and several different modulation/demodulation formats. Also included on the
Baseband Printed Circuit Card is a MIL-188-114A/RS-422 synchronous interfaces and a two port
10/100 Ethernet Bridge interface.
A block diagram of the Baseband Processing Card is shown in Figure 3-3.
Battery
Xtal
uProcessor
PCMCIA
Controller
SCC2
SMC2
SCC3
GPIO
uProc
Bus
SPI
40
MHz
x2
Compact
Flash
Demodulator
FPGA
SDRAM
2x
Boot
Flash
8 Mbx8
256 Mbx16
25 MHz
Xtal
Ethernet
PHY
Relays
Fault
(DB9)
RLLP
Terminal
Ethernet
DAC
AGC
Modulator
FPGA
SCT/SCTE
Rx SAT
Loopback
80 MHz
uProc Bus
SPI Bus
I/Q
TP
2x
r2r
Q
I
ADC
ADC
Analog I Filter
Analog I Inv Filter
Analog Q Inv Filter
Analog Q Filter
Alias
Filter
Alias
Filter
Analog I Unfilter
Analog I Inv Unfilter
Analog Q Unfilter
Analog Q Inv Unfilter
DMD1050 IF Board Connector (40-Pin Header)
I
Q
Analog Q Inv Unfilter
Analog Q Unfilter
Analog I Inv Unfilter
Analog I Unfilter
Analog I Filter
Analog I Inv Filter
Analog Q Filter
Analog Q Inv Filter
Alias
Filter
Alias
Filter
ADC
ADC
DB-25 Sync Data (RS-422, MIL-STD-188-114A) & Ethernet 10Base-T
Async (DB-9)
TPC Codec
ADC
Serial
EEPROM
SPI Bus
SPI Bus
Terrestrial Data
LPF
DAC
Tx
Clk
SCT
LPF
R2R
SCT
R2R
LPF
Insert DSP
Mem Space DMA
Drop DSP
Mem Space DMA
Buf
SRAM
40 MHz
40 MHz
Buffers
Terrestrial Data
Buffers
Terrestrial Data
Buffers
10 Mhz
OCXO
PLL
Buffers
Buffers
Figure 3-3. DMD1050 Baseband Processing Card Block Diagram
MN-DMD1050 3–3
Revision 9
- DMD1050 1
- Table of Contents 5
- PREFACE 11
- Warranty Policy 12
- Limitations of Warranty 12
- Exclusive Remedies 13
- Customer Support 14
- Chapter 1. Introduction 15
- 1.2 DMD1050 Configurations 16
- 1.2.2 Feature Upgrades 16
- 1.3 Function Accessibility 16
- Chapter 2. Installation 17
- 2.2 Unpacking 18
- 2.3 Removal and Assembly 18
- MN-DMD1050 2–3 19
- 2.6 Modulator Checkout 20
- 2.6.1 Initial Power-Up 20
- MN-DMD1050 2–5 21
- 2.7 Storage 22
- 3.1 DMD1050 Hardware 23
- MN-DMD1050 3–2 24
- MN-DMD1050 3–3 25
- 3.2.1 Baseband Processing 26
- MN-DMD1050 3–5 27
- 3.3.2 Terminal Mode Control 28
- MN-DMD1050 3–7 29
- 3.3.6 Terminal Screens 30
- MN-DMD1050 3–10 32
- 3.7.1.6 Ethernet QOS Type 33
- 3.7.1.7 Ethernet QOS Queue 33
- MN-DMD1050 3–12 34
- 3.7.1.9 Packet Statistics 35
- 3.8 Internal Clock 35
- MN-DMD1050 3–15 37
- MN-DMD1050 3–16 38
- 3.10.1 TX Clock Options 39
- 3.10.3 RX SAT Clock 41
- 3.12 Reed-Solomon Codec 42
- 3.12.3 Interleaving 43
- 3.13.1 Radyne AUPC 44
- 3.13.2 EF AUPC 45
- 3.13.3 Near Side AUPC 45
- MN-DMD1050 3–25 47
- MN-DMD1050 3–26 48
- MN-DMD1050 3–27 49
- MN-DMD1050 3–28 50
- 3.17.1 SCC Framing Structure 51
- 3.17.2 Aggregate Data Rate 52
- MN-DMD1050 3–31 53
- Example 1: 54
- Example 2: 54
- MN-DMD1050 3–33 55
- MN-DMD1050 3–34 56
- 3.19 Strap Codes 57
- MN-DMD1050 3–36 58
- 4.1 DMD1050 Connections 59
- MN-DMD1050 4–2 60
- MN-DMD1050 4–3 61
- MN-DMD1050 4–4 62
- MN-DMD1050 4–5 63
- MN-DMD1050 4–6 64
- MN-DMD1050 4–7 65
- MN-DMD1050 4–8 66
- MN-DMD1050 4–9 67
- MN-DMD1050 4–10 68
- CAUTION 69
- 5.2.1 Alarm Faults 70
- 5.2.1.1 Major Tx Alarms 70
- 5.2.1.2 Major Rx Alarms 70
- 5.2.1.3 Minor Tx Alarms 70
- 5.2.1.4 Minor Rx Alarms 71
- 5.2.1.5 Common Major Alarms 71
- 5.2.2 Alarm Masks 71
- Chapter 6. Technical 73
- Specifications 73
- MN-DMD1050 6–2 74
- 6.9.1 Non-DVB 75
- 6.9.2 DVB 76
- MN-DMD1050 6–5 77
- Viterbi 78
- Sequentia 79
- Trellis 81
- Viterbi Decoder 83
- MN-DMD1050 6–12 84
- MN-DMD1050 6–13 85
- MN-DMD1050 6–14 86
- MN-DMD1050 6–15 87
- MN-DMD1050 6–16 88
- MN-DMD1050 6–17 89
- 6.10.11 ACG Output Voltage 90
- Chapter 7. Web Browser 91
- 7.2.1 Appearance 92
- 7.2.2 Navigation 92
- 7.2.3 LED Indicators 93
- 7.3 GUI Screen Menus 94
- 7.3.1 Introduction Menu 95
- 7.3.1.1 Login Screen 96
- 7.3.2 Password Setup 97
- MN-DMD1050 7–8 98
- MN-DMD1050 7–9 99
- MN-DMD1050 7–10 100
- Revision 9 100
- MN-DMD1050 7–11 101
- MN-DMD1050 7–12 102
- Configuring the PC 103
- 7.3.4.1 Transmit Menu 104
- MN-DMD1050 7–15 105
- MN-DMD1050 7–16 106
- MN-DMD1050 7–17 107
- MN-DMD1050 7–18 108
- MN-DMD1050 7–19 109
- MN-DMD1050 7–20 110
- MN-DMD1050 7–21 111
- 7.3.4.2 Receive Menu 112
- MN-DMD1050 7–23 113
- MN-DMD1050 7–24 114
- MN-DMD1050 7–25 115
- MN-DMD1050 7–26 116
- MN-DMD1050 7–27 117
- 7.3.4.3 Interface Menu 118
- MN-DMD1050 7–29 119
- MN-DMD1050 7–30 120
- MN-DMD1050 7–31 121
- MN-DMD1050 7–32 122
- 7.3.4.4 Monitor Menu 123
- MN-DMD1050 7–34 124
- MN-DMD1050 7–35 125
- MN-DMD1050 7–36 126
- 7.3.4.5 Alarms Menu 127
- MN-DMD1050 7–38 128
- MN-DMD1050 129
- MN-DMD1050 7–40 130
- MN-DMD1050 7–41 131
- MN-DMD1050 7–42 132
- MN-DMD1050 7–43 133
- 7.3.4.5.1 System Menu 134
- MN-DMD1050 7–45 135
- MN-DMD1050 7–46 136
- 7.3.4.6 Test Menu 137
- Test Pattern 137
- MN-DMD1050 7–48 138
- A.1 Hardware Options 139
- A.2 Internal High-Stability 139
- A.3 Customized Options 139
- MN-DMD1050 A–2 140
- B.1 States 141
- B.2 Carrier Off 141
- B.3 Carrier On 141
- B.4 Carrier Auto 141
- B.5 Carrier VSat 142
- B.6 Carrier RTS 142
- Appendix C. TCP/IP Ethernet 143
- IMPORTANT 144
- C.4 Ethernet Test 145
- MN-DMD1050 C–4 146
- MN-DMD1050 C–5 147
- MN-DMD1050 C–6 148
- MN-DMD1050 C–7 149
- MN-DMD1050 C–8 150
- Appendix D. Web Browser 151
- Setup Guide 151
- MN-DMD1050 D–2 152
- MN-DMD1050 D–3 153
- D.4.1 Configuring the modem 154
- MN-DMD1050 D–5 155
- MN-DMD1050 D–6 156
- MN-DMD1050 D–7 157
- MN-DMD1050 D–8 158
- Appendix E.User Interface 159
- Connections 159
- MN-DMD1050 E–3 161
- 08-56-0106 162
- Appendix F.Ethernet Data 163
- Interface 163
- MN-DMD1050 F–2 164
- MN-DMD1050 F–3 165
- MN-DMD1050 F–4 166
- Figure F-4 – High Speed Mesh 167
- MN-DMD1050 F–6 168
- MN-DMD1050 F–7 169
- Prioritized Queues 170
- F.8.1 Normal QOS 171
- F.8.2 Port Based QOS 171
- F.8.3 Fair Weighted Queuing 171
- MN-DMD1050 F–10 172
- MN-DMD1050 F–12 174
- Appendix G. DMD1050 Strap 175
- Dis = Disable 176
- Procedure 179
- MN-DMD1050 H–2 180
- MN-DMD1050 H–3 181
- H.8 Monitor and Control 182
- METRIC CONVERSIONS 183
- Units of Length 183
- Temperature Conversions 183
- Units of Weight 183
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