Radyne DM240XR Spécifications Page 21
- Page / 196
- Table des matières
- DEPANNAGE
- MARQUE LIVRES
Noté. / 5. Basé sur avis des utilisateurs
MN-DM240XR– Revision 13 3–1
Chapter 3. Theory of Operation
3.1 Theory of Operation
The advanced hardware/software architecture of the DM240XR allows a single piece of hardware
to be configured for a variety of different applications. Several of these hardware/software
platforms are listed in the next sections. Custom applications are available.
The basic operation of each platform is similar. A digital terrestrial interface supplies the
modulator with a data stream. The data stream is synchronized if the incoming stream is framed.
The data is scrambled, and FEC is added. The data is then convolutionally encoded, punctured,
then constellation mapped. The resulting I&Q Symbols are digitally filtered. The data is then
converted into an analog waveform and is vector modulated onto an RF Carrier produced from
the Transmit IF Synthesizer Circuitry.
Since the baseband processing is completely digital, many different variations of signal
processing can be performed. Therefore, the DM240XR is one of the most flexible digital
modulators available today.
3.2 DVB-S Operation
The DVB-S version of the DM240XR complies with both EN300-421 and EN301-210 ETSI
Specifications.
A block diagram of the signal flow is shown in Figure 3-1 below.
- DM240XR 1
- Table of Contents 5
- Blank Page 10
- PREFACE 11
- Safety Compliance 12
- EN 60950 12
- Low Voltage Directive (LVD) 12
- Warranty Policy 13
- Customer Support 14
- Chapter 1. INTRODUCTION 15
- MN-DM240XR– Revision 13 1–2 16
- Chapter 2. Installation 17
- Unpacking 18
- 2.3 Removal and Assembly 18
- 2.4 Mounting Considerations 18
- Modulator Checkout 19
- Initial Power-Up 19
- MN-DM240XR– Revision 13 2–4 20
- 3.1 Theory of Operation 21
- 3.2 DVB-S Operation 21
- 3.3 DVB-S2-BS-NBC Operation 22
- Chapter 4. User Interfaces 23
- 4.2.3 Front Panel Keypad 24
- 4.2.4 Parameter Setup 25
- MN-DM240XR– Revision 13 4–4 26
- 4.3.1 Main Menus 27
- MN-DM240XR– Revision 13 4–6 28
- MN-DM240XR– Revision 13 4–7 29
- MN-DM240XR– Revision 13 4–8 30
- MN-DM240XR– Revision 13 4–9 31
- 4.4.2 Protocol Wrapper 53
- 4.4.1 Protocol Structure 53
- 4.4.5 Collision Avoidance 58
- 4.4.7 RLLP Summary 60
- 4.8.2 Terminal Screens 64
- Figure 4-6. Modulator Menu 65
- Figure 4-7. Event Log Menu 65
- 5.1 DM240XR Connections 71
- MN-DM240XR– Revision 13 5–2 72
- MN-DM240XR– Revision 13 5–3 73
- Normal Operation 73
- Firmware Update 73
- Custom Configuration 73
- 5.6 Remote Port (I/O) 74
- 5.7 Terminal Port (I/O) 74
- 5.8 Alarm Port 75
- MN-DM240XR– Revision 13 5–6 76
- 5.12.1 ASI PIIC 77
- 5.12.2 ASI Monitor 78
- MN-DM240XR– Revision 13 5–9 79
- 5.12.5 HSSI Interface 80
- 20 - 23 81
- Chapter 6. Maintenance and 83
- Troubleshooting 83
- MN-DM240XR– Revision 13 6–2 84
- 7.1 Introduction 85
- 7.2 IF Specification 85
- 7.3 Baseband Specification 86
- 7.3.1 DVB-S 86
- 7.5 Monitor and Control 88
- 7.6 Environmental 88
- 7.7 Physical 88
- 7.8 Options 89
- 7.10 Data Rates (DVB-S) 89
- MN-DM240XR– Revision 13 7–6 90
- 7.10.1 Data Rates (DVB-S2) 91
- MN-DM240XR– Revision 13 7–8 92
- MN-DM240XR– Revision 13 7–9 93
- Chapter 8. SNMP 95
- MN-DM240XR– Revision 13 8–2 96
- MN-DM240XR– Revision 13 8–3 97
- MN-DM240XR– Revision 13 8–4 98
- MN-DM240XR– Revision 13 8–5 99
- MN-DM240XR– Revision 13 8–6 100
- MN-DM240XR– Revision 13 8–7 101
- posfir(4) 102
- MN-DM240XR– Revision 13 8–9 103
- 9.2 Modulator Command Set 115
- MN-DM240XR– Revision 13 9–2 116
- MN-DM240XR– Revision 13 9–3 117
- MN-DM240XR– Revision 13 9–4 118
- MN-DM240XR– Revision 13 9–5 119
- MN-DM240XR– Revision 13 9–6 120
- MN-DM240XR– Revision 13 9–7 121
- MN-DM240XR– Revision 13 9–8 122
- MN-DM240XR– Revision 13 9–9 123
- Chapter 10. Web Browser 139
- 10.2 Configuring Your PC 140
- 10.2.1 LED Indicators 141
- 10.3 GUI Screen Menus 142
- 10.3.1 Introduction Menu 143
- 10.3.1.1 Login Screen 144
- 10.3.2 Password Setup 145
- Configuring Applications 150
- 10.3.4.1 Transmit Menu 152
- 10.3.4.2 Interface Menu 154
- 10.3.4.3 RFSWITCH Menu 155
- 10.3.4.4 Monitor Menu 155
- IMPORTANT 156
- 10.3.4.5 Alarms Menu 157
- 10.3.4.6 System Menu 158
- 10.3.4.7 Test Menu 160
- Procedure 161
- A.4 Demonstration Procedure 163
- MN-DM240XR– Revision 13 A–5 165
- MN-DM240XR– Revision 13 A–6 166
- B.1 Introduction 167
- B.4 Ethernet Test 169
- Network) 169
- MN-DM240XR– Revision 13 B–4 170
- MN-DM240XR– Revision 13 B–5 171
- MN-DM240XR– Revision 13 B–6 172
- MN-DM240XR– Revision 13 B–7 173
- MN-DM240XR– Revision 13 B–8 174
- Setup Guide 175
- C.2.1 Change Web User Name 177
- C.2.3 Change Access Rights 178
- C.3 Modem Web Site 178
- C.4 Web Page Appearance 179
- MN-DM240XR– Revision 13 C–6 180
- Operation Guide 181
- DM240 Tx 182
- Satellite Downlink 182
- MN-DM240XR– Revision 13 D–3 183
- D.4 AutoEQ 184
- Menu Options and Parameters 184
- MN-DM240XR– Revision 13 D–5 185
- MN-DM240XR– Revision 13 D–6 186
- D.5 AutoEQ 187
- MN-DM240XR– Revision 13 D–8 188
- MN-DM240XR– Revision 13 D–9 189
- D.9 Equalizer Calibration 191
- D.10 Equalizer Modes 192
- D.12 Additional Features 194
- D.12.2 LNB Power Connector 194
- METRIC CONVERSIONS 195
- Units of Length 195
- Temperature Conversions 195
- Units of Weight 195
- 480 • 333 • 2200 PHONE 196
- • 333 • 2161 FAX 196
© 2020, manymanuals.fr. Tous droits réservés | 0.388 s |
Manymanuals.com
Manymanuals.de
Manymanuals.fr
Manymanuals.it
Manymanuals.pl
Manymanuals.cz
Manymanuals.es
Manymanuals-pt.com
Commentaires sur ces manuels