Comtech EF Data CDD-880, Инструкция по установке и эксплуатации

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CDD-880 Multi Receiver Router MN-CDD880 / CD-CDD880
Table of Contents Revision 2
ix
E.4 Port Diversity Operation ..................................................................................................... E–4
E.4.1 Port Diversity Operation – CDD-880 HTTP Interface ................................................................ E–5
APPENDIX F. DMESH (VMS DYNAMIC MESH) SOLUTIONS ........................................... F–1
F.1 dMesh Overview ................................................................................................................. F–1
F.2 Operational Features .......................................................................................................... F–2
F.2.1 Vipersat Management System ................................................................................................. F–2
F.2.2 Return Link VersaFEC ACM ....................................................................................................... F–4
F.2.2.1 VersaFEC® ......................................................................................................................... F–4
F.2.2.2 Adaptive Coding and Modulation (ACM) .......................................................................... F–4
F.2.2.2.1 ACM and Dynamic Mesh ............................................................................................. F–5
F.2.2.2.2 ACM and Dynamic Power Control (DPC) ..................................................................... F–5
F.3 Operational Example .......................................................................................................... F–6
F.3.1 Requirements for Bandwidth-on-Demand and Dynamic Mesh with Single Hop on Demand
(SHOD) .................................................................................................................................................. F–6
F.3.2 Dynamic Mesh Operation ......................................................................................................... F–6
F.3.2.1 Create a Distribution List................................................................................................... F–7
F.4 Compatibility .................................................................................................................... F–11
F.5 Summary .......................................................................................................................... F–11
APPENDIX G. DPC (VMS DYNAMIC POWER CONTROL) ................................................ G–1
G.1 DPC (Dynamic Power Control) Overview ............................................................................. G–1
G.2 Dynamic Power Control ..................................................................................................... G–2
G.2.1 About DPC ................................................................................................................................ G–2
G.2.2 DPC Functionality ..................................................................................................................... G–3
G.2.2.1 Entrance Link Cabling ....................................................................................................... G–3
G.2.2.2 Operational Essentials ...................................................................................................... G–4
G.2.2.2.1 Power Reference ....................................................................................................... G–5
G.2.2.2.2 Reference Calibration ................................................................................................ G–5
G.2.2.2.3 Rated Maximum Power ............................................................................................. G–5
G.2.2.2.4 Terminal Maximum Power ........................................................................................ G–5
G.2.2.2.5 Target Power ............................................................................................................. G–5
G.3 DPC Operation ................................................................................................................... G–7
G.3.1 Adaptive Control Loop (ACL) Components .............................................................................. G–8
G.3.1.1 Closed Loop Mechanism .................................................................................................. G–9
G.3.1.2 ACL Timers...................................................................................................................... G–10
G.3.1.3 LQRM Failure and Recovery Steps ................................................................................. G–10
G.3.2 DPC with ACM ........................................................................................................................ G–11
G.3.2.1 Terminal Maximum Power ............................................................................................. G–12
G.3.2.2 DPC with ACM and Hub Backoff .................................................................................... G–13