Comtech EF Data CDM-750 - Manual (Page 13)

CDM-750 Advanced High-Speed Trunking Modem Revision 2
Table of Contents MN-CDM750
xi
D.4.2 Margin Requirements ........................................................................................................................... D–9
D.4.3 Carrier‐in‐Carrier Latency ..................................................................................................................... D–9
D.4.4 Carrier‐in‐Carrier and Adaptive Coding and Modulation (ACM) ..................................................... D–10
D.4.5 Carrier‐in‐Carrier Link Design ............................................................................................................. D–10
D.4.6 Symmetric Data Rate Link .................................................................................................................. D–11
D.4.6.1 Asymmetric Data Rate Link .............................................................................................D–13
D.4.6.2 Power Limited Links ........................................................................................................D–14
D.4.7 Commissioning and Deploying Carrier‐in‐Carrier ............................................................................. D–16
D.5 Operational References ...................................................................................................... D–17
D.5.1 Calculating a Carrier‐in‐Carrier Link Budget ...................................................................................... D–17
D.5.2 Estimating / Calculating CnC Ratio ..................................................................................................... D–18
D.5.2.1 Estimating CnC Ratio from LST / EIRP .............................................................................D–18
D.5.2.2 Calculating CnC Ratio from Carrier to Noise Ratio (C/N) on a Spectrum Analyzer .........D–19
D.5.3 Calculating CnC Ratio and PSD Ratio from Satmaster ...................................................................... D–20
D.6 DoubleTalk Carrier‐in‐Carrier Specifications ........................................................................ D–20
D.7 Carrier‐in‐Carrier Summary ................................................................................................. D–20
D.8 Glossary .............................................................................................................................. D–21
APPENDIX E. ES/NO MEASUREMENT .............................................................................. E–1
APPENDIX F. ETHERNET NETWORK CONFIGURATION .................................................. F–1
F.1 Introduction .......................................................................................................................... F–1
F.2 Ethernet Routers and Switches .............................................................................................. F–1
F.3 Ethernet Configuration Examples ........................................................................................... F–2
F.3.1 Ethernet Network Overview ................................................................................................................. F–2
F.4 CDM‐750 Ethernet Overview ................................................................................................. F–3
F.4.1 Ethernet Interfaces ................................................................................................................................ F–3
F.4.2 Ethernet Overhead ................................................................................................................................ F–4
APPENDIX G. ETHERNET STATISTICS AND STATUS REPORTING .............................. G–1
G.1 Introduction ......................................................................................................................... G–1
G.2 Data Flow Diagram ............................................................................................................... G–1
G.3 Statistics Items ..................................................................................................................... G–3
G.3.1 Ethernet Data Statistics ........................................................................................................................ G–3
G.3.2 Framing and Baseband Statistics ......................................................................................................... G–3
G.3.3 Status Items ........................................................................................................................................... G–4