Ericsson 1553-FGC 101 1010 Uen A Guia do Utilizador Página 199
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ProMPEG FEC Support for IP Streaming
G.1 Introduction
The ProMPEG Forward Error Correction (FEC) scheme is designed to recover lost
or corrupted packets caused when transferring MPEG-2 transport streams, or newer
MPEG standards encapsulated as an MPEG-2 transport streams, over an IP
network.
The MX8400 supports ProMPEG FEC to the ProMPEG Code of Practice #3 release
2 standard on both input and output ports of the ProMPEG FEC option card.
FEC packets are generated for every column and optionally for every row. To
generate the FEC packets, RTP frames based on their sequence numbers are
arranged in a rectangle of dimensions D * L. The payload of the FEC packet
generated is the exclusive-OR of all RTP frames in the row/column it protects.
Figure G.1 shows the arrangement of the RTP frames and the FEC packets that
protect them.
1 165432
7 712111098
13 131817161514
19 192423222120
25 253029282726
1 65432
CoLumns (L)
Rows (D)
Figure G.1 Columns and Rows
G.2 Configuration of ProMPEG FEC Inputs
If a transport stream is protected using ProMPEG FEC, and arrives at the input of
the MX8400 ProMPEG FEC card, then the FEC streams and their parameters are
automatically detected. Hence configuration of ProMPEG FEC inputs is not
required.
2/1553-FGC 101 1014 Uen B
G-3
- Revision History 4
- Associated Documents 5
- Trademarks 5
- Warnings, Cautions and Notes 6
- EMC Compliance 6
- Contact Information 7
- Preliminary Pages 8
- 1 Introduction 9
- Introduction 10
- 2/1553-FGC 101 1014 Uen B 10
- 1.1 Terminology 11
- 1.2 Scope of this Guide 11
- MULTIPLEXER 13
- KDU XXX XXX/X 13
- 1.3 Summary of Features 14
- Introduction 15
- 1.3.3 Remote Reflex 17
- 1.3.4 Conditional Access 19
- 1.5 Guided Tour 20
- 1.5.2 Indicators 21
- 2 Installing and Powering Up 23
- Installing and Powering Up 24
- Installing and Powering Up 25
- 2.1 Introduction 27
- 2.2 Preliminary Checks 28
- 2.3.3 Lifting 29
- 2.3.4 Fixing 29
- 2.3.5 Cable Routing 29
- 2.3.6 Equipment Access 29
- Warnings! 30
- Cautions! 30
- 2.4.1 EN 55022/AS/NZS 3548 31
- 2.4.2 FCC 31
- 2.7 Signal Connections 36
- MX8400 Multiplexer 37
- 2.8.1 Overview 39
- 2.8.2 Static Parameters 41
- 2.8.3 Reported Faults 43
- 2.9 ASI IN 1 and 2 44
- 2.10 ASI OUT 1 to 4 45
- 2.11 Ethernet CA 1 and 2 46
- 2.11.2 Static Parameters 47
- 2.12.1 Overview 49
- 2.12.2 Static Parameters 50
- 2.12.3 Reported Faults 50
- 2.13 RELAY Connector 51
- 2.15 HSYNC Clock Reference 52
- 2.15.2 Static Parameters 53
- 2.15.3 Reported Faults 53
- 2.17 Powering Up/Down 54
- 2.17.3 Power up Self Test 55
- 2.17.4 Start up Sequence 55
- 2.17.7 Powering Down 56
- Chapter 3 57
- 3.1 What’s Available 59
- 3.2 ASI Option 60
- 3.2.2 Connectors 61
- (MX8400/HWO/PROFEC) 65
- 3.3.2 Connectors 67
- 3.5.1 Overview 73
- 3.5.2 Static Parameters 75
- 3.5.3 Alarms 75
- 3.6 Software Licenses 76
- 4 Operating the Multiplexer 77
- 4.1.2 IP Address 79
- 4.1.3 Netmask 79
- 4.2 About nCompass Control 80
- 4.4.1 Definition 81
- 4.5.1 Introduction 82
- Streams 88
- 4.8.1 Overview 90
- 4.9.1 Overview 91
- 4.9.2 Deselect the PSI/SI 92
- 4.10.2 Mixed PCR System 93
- Chapter 5 95
- 5.1 Introduction 97
- 5.2 Routine Checks 97
- 5.3 Servicing 97
- 5.3.2 Replacement Parts 98
- 5.4.1 Warranty 98
- 5.5 Fault-finding 99
- Fault Fault Description 100
- Warning! 101
- Caution! 101
- 5.6 Overrate Alarms 102
- 5.7 Missing PIDs 102
- A Glossary 107
- Glossary 108
- Glossary 109
- 2/1553-FGC 101 1014 Uen B 109
- B Technical Specification 127
- Technical Specification 128
- Item Specification 129
- B.2.3 ASI IN 1 – 2 132
- B.2.4 ASI OUT 1 – 4 132
- B.3 Control and Monitoring 133
- B.3.3 RS-232 Remote Control 134
- B.4 Reference Signals 135
- B.4.3 H SYNC OUT 136
- B.4.4 Time Protocol 136
- B.5 Service Information 137
- B.6 AC Supply 138
- B.7 Physical Details 139
- B.9 Compliance 140
- B.9.3 CE Marking 141
- B.9.4 C-Tick Mark 141
- B.9.5 Packaging Statement 141
- B.9.6 Packaging Markings 142
- Technical Specification 143
- B.9.8 Equipment Disposal 144
- B.9.9 Lithium Batteries 144
- B.9.10 Recycling 144
- B.10 Cable Types 145
- C Static Parameters 147
- Static Parameters 148
- C.1 Readme First 149
- D Conditional Access 151
- Conditional Access 152
- D.2 Overview 153
- D.3 CA Status Monitoring 154
- D.4.1 Configure CA Types 155
- Conditional Access 157
- D.6 ECMG Settings 167
- D.6.2 Upload the Map 168
- D.8.1 Overview 178
- D.8.2 Setting up the Output 178
- D.8.3 Connecting the Output 179
- D.9.1 Overview 181
- D.9.2 Description of SCG ID 181
- D.9.4 SCG ID Selection 183
- D.9.5 Shared ECMs 183
- E Redundancy Modes 185
- Redundancy Modes 186
- E.1.1 Scope 187
- E.1.2 Overview 187
- E.2.1 Scope 188
- E.2.2 Overview 188
- Redundancy Modes 189
- E.2.4 Alarms 190
- F IP Protocols 191
- IP Protocols 192
- F.1 IP Protocol Stack 193
- F.1.3 RTP Layer 194
- F.1.4 UDP Layer 194
- F.1.5 IP Layer 194
- F.1.6 Ethernet Layer 194
- F.2 Stack Download Ports 195
- Streaming 197
- CoLumns (L) 199
- Rows (D) 199
- G.3.1 ProMPEG FEC Mode 200
- G.4.1 Overview 201
- G.4.4 Size of the Matrix 202
- Annex H 203
- Contents 203
- H.1.1 Overview 205
- H.3.3 MIP Insertion 209
- H.3.4 Static Parameters 210
- I PSIG Support 213
- PSIG Support 214
- I.2 Why do I Need PSIG? 215
- I.3 Static Parameters 215
- I.3.2 Configuring PSIG 216
- I.4 Alarms/Reported Faults 218
- J BISS Support 219
- BISS Support 220
- J.2 Overview 221
- J.3 Configuring BISS 222
- BISS Support 223
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