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ND SatCom SKYWAN IDU 2070 Manuals
Manuals and User Guides for ND SatCom SKYWAN IDU 2070. We have
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ND SatCom SKYWAN IDU 2070 manual available for free PDF download: Manual
ND SatCom SKYWAN IDU 2070 Manual (154 pages)
SkyWAN IDU 7000
Brand:
ND SatCom
| Category:
Modem
| Size: 6 MB
Table of Contents
Manual Conventions
5
Table of Contents
7
List of Tables
11
List of Figures
13
1 Introduction
17
Summary
17
Manual Content
17
Figure 1-1 Overview VSAT Station
17
Who Should Read this Document
18
What Do You Need to Know
18
Skywan ® Solutions and Benefits
19
General Design and Engineering Process
20
Figure 1-2 Overview Design and Engineering Process
20
Related Documents
21
Skywan ® IDU Manuals Suite
21
Table 1-1 Skywan ® IDU 7000 / 1070 Series Manuals Suite
21
2 General Carrier Design
23
Introduction
23
Figure 2-1 Carrier Design Steps
23
Data and Voice Networking Overview
24
Figure 2-2 Skywan ® Networking at a Glance
24
Figure 2-3 Voice over Skywan
25
Voice Connections
25
Table 2-1 IP Voice Call Data Rates
26
Table 2-2 Frame Relay Voice Call Data Rates
26
Voice Codecs
26
Essential Skywan ® Satellite Link Layer Features
27
Skywan ® Network Topologies
27
Figure 2-4 Network Topologies
27
Figure 2-5 Data Reception Modes
28
Reception Modes
28
Master and Slave Functionality
29
Control Communication: Reference and Request Bursts
29
Figure 2-6 Master - Slave Communication
29
Active and Backup Master Role
30
Figure 2-7 Active and Backup Master
30
Skywan ® MF-TDMA Functionality
31
TDMA Frame
31
Transmit and Receive Carriers
32
Figure 2-8 TDMA Frame Structure
32
Figure 2-9 Tx Frequency Hopping
32
Data Slot Time Factors
33
Figure 2-10 Data Slot Length
33
TDMA Superframe
34
Downlink and Uplink Populations
34
Figure 2-11 TDMA Superframes
34
Skywan ® Reference Burst Modes
35
MRB Mode
35
MRB-DUB Mode
35
Figure 2-12 Two Uplink Populations with Cross-Strapped Transponder
35
NFB-DUB Mode
36
Figure 2-13 MRB-DUB Frame of a 3 Carrier Network
36
Figure 2-14 NFB-DUB Frame
36
Capacity Request and Allocation for User Data
37
Free Slot Assignment
37
Figure 2-15 Capacity Request
37
Ranging Subframe
38
Stream Slots
38
Figure 2-16 Free Slot Assignment
38
Figure 2-17 Slot Assignment with Ranging Subframe
38
Dynamic Slots
39
Figure 2-18 Slot Assignment Differences
39
Guaranteed Throughput
40
Guaranteed Throughput Example Scenarios
40
Figure 2-19 TDMA Structure of Throughput Example
40
Scenario 1
41
Figure 2-20 Throughput Scenario 1
41
Scenario 2
42
Figure 2-21 Throughput Scenario 2
42
Scenario 3
43
Figure 2-22 Throughput Scenario 3
43
Scenario 4
44
Figure 2-23 Throughput Scenario 4
44
Network Traffic Estimation
45
Traffic Profiles
45
Traffic Estimation Example Scenario
46
Figure 2-24 Traffic Estimation Scenario IP Traffic
46
Summarize Example Traffic
47
Figure 2-25 Traffic Estimation Scenario Fame Relaytraffic
47
Capacity Calculation Tool
48
Capacity Calculation Worksheet
48
Figure 2-26 Traffic Calculation Example - Capacity Worksheet
48
Erlang B Calculation Worksheet
49
Figure 2-27 Per Network Traffic
49
Figure 2-28 Traffic Calculation Example - Erlang B Worksheet
50
Voice Traffic Flow Worksheet
51
Carrier Configuration Worksheet
51
Figure 2-29 Traffic Calculation Example - Voice Traffic Flow Worksheet
51
Figure 2-30 Traffic Calculation Example - Carrier Configuration Worksheet
52
Limitations of the Traffic Estimation Approach
53
Figure 2-31 Traffic Calculation Example - Carrier Config. with Network Traffic
53
From User Traffic to Satellite Link Carriers
55
Figure 2-32 SLL Encapsulation
55
Figure 2-33 Gross Container Information Content
56
Figure 2-34 Add Turbo-Phi Coding
56
Figure 2-35 Modulated Gross Container
57
Figure 2-36 Signalling Time Slots
57
Figure 2-37 Signal Preparation - Summary
58
Summary
58
TDMA Carrier Design with 'TDMA Calculator
59
Figure 2-38 Start Integrated Skynms TDMA Calculator
59
Figure 2-39 TDMA Calculator GUI
60
Figure 2-40 TDMA Calculator - Two Uplink Populations Specified
61
Section 'General Data Input
61
Parameter Summary
62
Section 'Data Input Per Frequency Channel
63
Table 2-3 Summary 'General Data Input' Parameter
63
Figure 2-41 TDAM Calculator - Define Different Traffic Compositions
64
Parameter Summary
64
Area 'General Data Output
66
Parameter Summary
66
Table 2-4 Summary 'Data Input Per Frequency Channel' Parameter
66
Area 'Data Output Per Frequency Channel
67
Table 2-5 Summary 'General Data Output' Parameter
67
Parameter Summary
69
Table 2-6 Summary 'Data Output Per Frequency Channel' Parameter
69
Exporting and Importing TDMA Calculator Values
70
From Capacity Estimation to TDMA Structure
71
Figure 2-42 Results from Capacity Calculation Tool
71
Adjustment and Optimization Considerations
72
One Carrier Solution
72
Adjustment and Optimization Considerations
73
Figure 2-43 TDMA Calculator with Optimized 1 Carrier Solution
73
Optimized Three Carrier Solution
73
Figure 2-44 TDMA Calculator Output for Optimized 3 Carrier Solution
74
Outdoor Unit and Satellite Link Design
77
Introduction
77
Select Satellite Transponder
77
Figure 3-1 Steps for Outdoor Unit and Satellite Link Design
77
Calculate Link Budget
78
Perform Optimization
78
Satellite Beam Footprints
78
Figure 3-2 SES World Skies NSS-7 Satellite Wide Beam Footprints
78
Figure 3-3 SES World Skies NSS-7 Satellite Spot Beam Footprint
79
Satellite Choice Considerations
79
Fundamentals of Link Budget Calculation
80
Uplink and Downlink
80
Equivalent Isotropic Radiated Power (EIRP) and Antenna Gain
80
Figure 3-4 Up- and Downlink Link Budget
80
Path Loss
81
Saturation Flux Density (SFD)
81
Noise, Figure of Merit G/T and Signal-To-Noise Ratio Eb/No
81
Satellite Link Quality Dependencies
81
Power Equivalent Bandwidth
82
Table 3-1 Eb/No Values for Different FEC Coding and Modulations
82
Table 3-2 Carrier Power and Bandwidth for TDMA Structure Example
82
Rain Fade
83
Table 3-3 Relation between Modulation, Coding and Carrier PEB
83
Rain Margin and Uplink Power Control
84
Figure 3-5 ITU-T Rainzones Europe and North-Africa
84
Figure 3-6 Attenuation under Maximum Rain Fade Condition
85
Figure 3-7 Power Conditions with Constant Power Level
85
Considerations for Skywan ® Link Budget Calculations
86
Network Topology
86
Figure 3-8 Power Conditions with Uplink Power Control
86
Downlink Optimization
87
Figure 3-9 Downlink Considerations
87
Uplink Optimization
88
Figure 3-10 Uplink Considerations
88
Skywan
89
Link Budget Calculation Tool
89
Satellite Data Worksheets (Ku- and C-Band)
90
Figure 3-11 Link Budget Tool - Satellite Data Worksheet(S)
90
Antenna Data Worksheets (Ku- and C-Band)
91
Figure 3-12 Link Budget Tool - Antenna Data Worksheet(S)
91
Figure 3-13 Link Budget Tool - C-Band Antenna Data
91
Stations Worksheet
92
Use Pre-Defined Network Data
92
Specify Network Data
92
Figure 3-14 Link Budget Tool - Station Worksheet
92
Output Back-Off
93
Figure 3-15 Link Budget Tool - Define Network
93
Stations with 2 Demodulator Boards
94
Table 3-4 Output Back-Off SSPA
94
Figure 3-16 Link Budget Tool - Station with 2 Demodulators
94
Tx Amplifier Worksheet
95
Figure 3-17 Link Budget Tool - Txamp Worksheet
95
Summary Worksheet
96
Input
96
Figure 3-18 Link Budget Tool - Summary Worksheet Input
96
Output
97
Figure 3-19 Link Budget Tool - Summary Worksheet Uplink
97
Figure 3-20 Link Budget Tool - Summary Worksheet Downlinks
97
Figure 3-21 Link Budget Tool - Summary Worksheet Up- and Downlinks
98
Optional Link Filter for Complex Topologies
99
Required Settings for MRB-DUB Networks
99
Figure 3-22 Link Budget Tool - Summary Worksheet Complex Filter
99
Figure 3-23 MRB-Dub Network Overview
100
Figure 3-24 MRB-DUB Network - Satellite Data
100
Figure 3-25 MRB-DUB Network - Transponder in Stations Sheet
100
Transponder Data
100
Figure 3-26 MRB DUB Network - Hub Stations
101
Figure 3-27 MRB DUB Network - ULA1 Stations
101
Hub Stations
101
Uplink Area 1 (ULA1)
101
Carrier Topology
102
Figure 3-28 MRB DUB Network - ULA2 Stations
102
Figure 3-29 MRB DUB Network - Summary Topology
102
Uplink Area 2 (ULA2)
102
Figure 3-30 MRB DUB Network - Link Calculations ULA1
103
Figure 3-31 MRB DUB Network - Link Calculations ULA2
103
Link Calculations
103
Link Budget Examples
104
Scenario 1: Ku-Band 5 Stations Fully Meshed
104
Figure 3-32 Scenario 1 - Uplink Footprint
104
Figure 3-33 Scenario 1 - Downlink Footprint
104
Antenna Data
105
Figure 3-34 Scenario 1 - Ku-Band Transponder Data
105
Figure 3-35 Scenario 1 - Ku-Band Antenna Data
105
Optimizations
105
Satellite Transponder Data
105
Table 3-5 Scenarion 1 - 2 Carrier Solution Requirements
105
Figure 3-36 Scenarion 1 - 2 Carrier Solution Stations
106
Table 3-6 Scenario 1 - Carrier Coding and Bandwidth
106
Table 3-7 Scenario 1 - Summarized Power Requirements
106
Conclusion
107
Link Budget Calculation Result Analysis
107
Scenario 2: Ku-Band 5 Stations Star Network with 2 Hubs
107
Compare Scenarios
108
Optimization
108
Table 3-8 Scenario 2 - Carrier Coding and Bandwidth
108
Table 3-9 Scenario 2 - Summarized Power Requirements
108
Conclusion
109
Table 3-10 Scenario 2 - Optimized Carrier Coding and Bandwidth
109
Table 3-11 Scenario 2 - Optimized Power Requirements
109
Scenario 3: Ku-Band 5 Stations Star Network with 3 Hubs
110
4 Data Networking
111
Introduction
111
Skywan Internet Protocol Features
111
Skywan IP Router Introduction
111
Skywan ® IDU 7000 Series Interfaces
113
Table 4-1 IP Interface Usage of IDU 7000 Series
113
Figure 4-1 Skywan ® IP Protocol Stack IDU 7000 Series
113
Table 4-2 IP Interface Usage of IDU 1070
114
Figure 4-2 Skywan ® IP Protocol Stack IDU 1070
114
Basic IP Network Topologies
115
Figure 4-3 Skywan ® Meshed IP Data and Management Network
115
Static Routing
116
Figure 4-4 Skywan ® Hybrid IP Data and Management Network
116
Figure 4-5 Static Routing in a Star Network
117
Static Routing in a Star Network
117
Dynamic Routing with OSPF
118
Redistribution of Static Routes Via OSPF
118
Load Balancing for IP Unicast Traffic
119
Equalizing Path Costs for OSPF Networks
120
Figure 4-6 OSPF Cost Metric
120
IP Multicast Forwarding
121
IGMP Querier Role
121
Standard and FMCA Mode
121
IP Service Differentiation (Quality of Service)
122
Figure 4-7 Mapping of Forwarding Behaviours to Transmit Queues
123
Gold-TCP-A, Gold, Silver, Bronze, Default
124
Platinum
124
Table 4-3 Threshold of Forwarding Behaviors
124
Titanium
124
Platinum Dynamic
125
Robust Header Compression
126
Transmission Control Protocol Acceleration (TCP-A)
127
Figure 4-8 Rohc Feature Overview
127
Figure 4-9 TCP-A Feature Overview
128
Skywan Frame Relay Networking Features
129
Serial Port Properties
129
Table 4-5 UIM Board FR Serial Port Types
129
Basic Frame Relay Services
130
FR Communication Services and Quality of Service
131
Figure 4-10 Mapping of FR Services to Transmit Queues
131
Skywan ® FAD Service
132
FAD 'Class 7' Traffic
132
Traffic Shaping and Congestion Management
132
Realtime Service for Isochronous FRAD Ports
133
Congestion Management of Non-Realtime FR Packets
133
Summary and Design Implementation
135
Appendix A - What's New in this Manual
137
Table 6-1 What's New in the Engineering Manual
137
Table 6-2 What's New in Rev. B
137
Appendix B - Abbreviations
139
Appendix C - Glossary
145
Appendix D - Install TDMA Calculator Standalone Tool
151
Hardware Requirements
151
Software Requirements
151
Install TDMA Calculator Standalone Tool
152
Run TDMA Calculator Standalone Tool
152
Uninstall TDMA Calculator Standalone Tool
152
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