Comtech-ef-data DD240XR Rev Е Instrukcja Użytkownika Strona 108
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Technical Specifications DD240XR High-Speed Digital Demodulator
7-2 MN-DD240XR – Rev. E
Forward Error Correction (FEC) Decoding
Inner Code: PTCM (8PSK, 16QAM), Viterbi (QPSK)
Code Rates: 1/2, 2/3, 3/4, 5/6, 7/8 (QPSK)
2/3, 5/6, 8/9 (8PSK)
3/4, 7/8 (16QAM)
Outer Code: Reed-Solomon, Per EN 300-421
(204, 188, T=8)
Deinterleaving: Convolutional, I=12, Per EN 300-421
Data Descrambling: Per EN 300-421
Terrestrial Framing Modes: 204, 188, 187
Internal Clock Source Stability: 10 ppm
Internal Doppler Buffer: 0 – 64 msec, G.703 Interface
7.3.1 DVB-S2-CCM
Compliance ETSI EN 302 307 v1.1.1 (Broadcast Services Only)
Modulation Types: QPSK, 8PSK, 16APSK
Data Rate: Normal FEC Frames:
QPSK: 1 to 80 Mbps in 1 bps steps
8PSK: 3.9 to 120 Mbps in 1 bps steps
16APSK: 5.3 to 160 Mbps in 1 bps steps
Short FEC Fames:
QPSK: .75 to 77. Mbps in 1 bps steps
8PSK: 3.8 to 116 Mbps in 1 bps steps
16APSK: 5.1 to 153 Mbps in 1 bps steps
Symbol Rate: 2 to 45 Msps in 1 sps steps
Terrestrial Framing: 188 (1 sync byte, 187 payload bytes)
Baseband Processing: Per ETSI EN 302 307 v1.1.1
Block Size: 64.8 Kbits or 16.2 Kbits
FEC Code: BCH + LDPC
De-Interleaver: Block Interleaver, per ETSI EN 302 307 v1.1.1
Inner Code Rate: QPSK - 1/2, 3/5, 2/3, 3/4, 4/5, 5/6, 8/9, 9/10 (Normal
Frames)
8PSK - 3/5, 2/3, 3/4, 5/6, 8/9, 9/10 (Normal Frames)
16APSK - 2/3, 3/4, 4/5, 5/6, 8/9, 9/10 (Normal Frames)
Baseband Roll-Off Square Root Raised Cosine
0.20, 0.25, 0.35
7.4 Configuration Series DVB-S
Series 100: 2 - 10 Msps, QPSK
Series 200: 2 - 45 Msps, QPSK
Series 300: 2 - 45 Msps, QPSK / 8PSK
Series 350: 2 - 45 Msps, QPSK / 8PSK / 16QAM
- DD240XR 1
- Warranty Policy 3
- Comtech EF Data Corporation 4
- Preface 5
- Table of Contents 7
- MN-DD240XR – Rev. E ix 9
- Introduction 11
- 1-2 MN-DD240XR – Rev. E 12
- Installation 13
- chassis under any 13
- 2.1 Unpacking 14
- 2.2 Removal and Assembly 14
- 2.4 Demodulator Checkout 15
- 2.4.1 Initial Power-Up 15
- 2-4 MN-DD240XR – Rev. E 17
- Theory of Operation 19
- 3-2 MN-DD240XR – Rev. E 20
- User Interfaces 21
- 4.1.3 Front Panel Keypad 22
- 4.1.5 Parameter Setup 23
- 4-4 MN-DD240XR – Rev. E 24
- 4.2.1 Main Menus 25
- 4-6 MN-DD240XR – Rev. E 26
- MN-DD240XR – Rev. E 4-7 27
- 4-8 MN-DD240XR – Rev. E 28
- MN-DD240XR – Rev. E 4-9 29
- 4-10 MN-DD240XR – Rev. E 30
- MN-DD240XR – Rev. E 4-11 31
- 4-12 MN-DD240XR – Rev. E 32
- MN-DD240XR – Rev. E 4-13 33
- 4-14 MN-DD240XR – Rev. E 34
- MN-DD240XR – Rev. E 4-15 35
- 4-16 MN-DD240XR – Rev. E 36
- MN-DD240XR – Rev. E 4-17 37
- 4-18 MN-DD240XR – Rev. E 38
- MN-DD240XR – Rev. E 4-19 39
- 4-20 MN-DD240XR – Rev. E 40
- MN-DD240XR – Rev. E 4-21 41
- 4-22 MN-DD240XR – Rev. E 42
- MN-DD240XR – Rev. E 4-23 43
- 4-24 MN-DD240XR – Rev. E 44
- MN-DD240XR – Rev. E 4-25 45
- 4-26 MN-DD240XR – Rev. E 46
- {XXXXXXXXXXXX} 47
- 4.3.1 Protocol Structure 48
- 4.3.2 Protocol Wrapper 48
- MN-DD240XR – Rev. E 4-29 49
- 4-30 MN-DD240XR – Rev. E 50
- 4.3.5 Collision Avoidance 51
- 4-32 MN-DD240XR – Rev. E 52
- 4.3.7 RLLP Summary 53
- 4-34 MN-DD240XR – Rev. E 54
- MN-DD240XR – Rev. E 4-35 55
- 4-36 MN-DD240XR – Rev. E 56
- MN-DD240XR – Rev. E 4-37 57
- 4-38 MN-DD240XR – Rev. E 58
- MN-DD240XR – Rev. E 4-39 59
- 4-40 MN-DD240XR – Rev. E 60
- MN-DD240XR – Rev. E 4-41 61
- 4-42 MN-DD240XR – Rev. E 62
- MN-DD240XR – Rev. E 4-43 63
- 4-44 MN-DD240XR – Rev. E 64
- MN-DD240XR – Rev. E 4-45 65
- 4-46 MN-DD240XR – Rev. E 66
- MN-DD240XR – Rev. E 4-47 67
- 4-48 MN-DD240XR – Rev. E 68
- MN-DD240XR – Rev. E 4-49 69
- 4-50 MN-DD240XR – Rev. E 70
- MN-DD240XR – Rev. E 4-51 71
- 4-52 MN-DD240XR – Rev. E 72
- MN-DD240XR – Rev. E 4-53 73
- 4-54 MN-DD240XR – Rev. E 74
- MN-DD240XR – Rev. E 4-55 75
- 4-56 MN-DD240XR – Rev. E 76
- MN-DD240XR – Rev. E 4-57 77
- 4-58 MN-DD240XR – Rev. E 78
- MN-DD240XR – Rev. E 4-59 79
- 4-60 MN-DD240XR – Rev. E 80
- MN-DD240XR – Rev. E 4-61 81
- 4-62 MN-DD240XR – Rev. E 82
- MN-DD240XR – Rev. E 4-63 83
- 4-64 MN-DD240XR – Rev. E 84
- MN-DD240XR – Rev. E 4-65 85
- 4-66 MN-DD240XR – Rev. E 86
- MN-DD240XR – Rev. E 4-67 87
- 4-68 MN-DD240XR – Rev. E 88
- Electrical Interfaces 89
- 5.1 AC Power 90
- 5.2 PCMCIA Interface (J1) 90
- 5.2.1 Feature Upgrade 90
- 5.2.2 Firmware Update 91
- 5.4 Alarm Port (J3) 91
- 5.5 Remote Port (J4) 92
- 5.6 Terminal Port (J5) 92
- 5.8 RX IF IN (J7) 92
- 5.9 J8 Ports 93
- 5-6 MN-DD240XR – Rev. E 94
- 5.13 ECL Interface 95
- 5.13.1 ECL Balanced (J8) 95
- 5-8 MN-DD240XR – Rev. E 96
- MN-DD240XR – Rev. E 5-9 97
- 5-10 MN-DD240XR – Rev. E 98
- MN-DD240XR – Rev. E 5-11 99
- 5-12 MN-DD240XR – Rev. E 100
- MN-DD240XR – Rev. E 5-13 101
- 5-14 MN-DD240XR – Rev. E 102
- Maintenance 104
- 6-2 TM115 – Rev. 1.2 105
- Technical Specifications 107
- 7.3.1 DVB-S2-CCM 108
- 7.6 Monitor and Control 109
- 7.7 Environmental 110
- 7.8 Physical 110
- 7.9 Options 110
- MN-DD240XR – Rev. E 7-5 111
- 7-6 MN-DD240XR – Rev. E 112
- MN-DD240XR – Rev. E 7-7 113
- 7-8 MN-DD240XR – Rev. E 114
- MN-DD240XR – Rev. E 7-9 115
- 7-10 MN-DD240XR – Rev. E 116
- Glossary 117
- G-2 MN-DD240XR – Rev. E 118
- MN-DD240XR – Rev. E G-3 119
- G-4 MN-DD240XR – Rev. E 120
- MN-DD240XR – Rev. E G-5 121
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