CDM-840 Remote Router MN-CDM840 / CD-CDM840
Table of Contents Revision 3
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E.9 Summary .......................................................................................................................... E–14
APPENDIX F. CARRIER ID (DVB-CID METACARRIER
®
).................................................. F–1
F.1 Functional Overview ........................................................................................................... F–1
F.1.1 About MetaCarrier .................................................................................................................... F–1
F.1.2 Functional Description .............................................................................................................. F–2
F.2 CDM-840 Carrier ID Operation ............................................................................................. F–3
F.2.1 CID Operation – CDM-840 HTTP Interface ............................................................................... F–3
F.2.2 CID Operation – Serial Remote Control .................................................................................... F–6
APPENDIX G. ECM (ENTRY CHANNEL MODE) ............................................................... G–1
G.1 Functional Overview .......................................................................................................... G–1
G.1.1 ECM Terminology .................................................................................................................... G–1
G.1.2 ECM Overview ......................................................................................................................... G–2
G.1.3 CDM-840 ECM Message Processing ........................................................................................ G–5
G.1.4 CDD-880 ECM Message Processing ......................................................................................... G–6
G.2 ECM Operational Scenarios ................................................................................................ G–7
G.2.1 Scenario 1 – VMS Initial Registration Process ......................................................................... G–7
G.2.2 Scenario 2 – Reverted or Auto-Recovered Messages.............................................................. G–7
G.2.2.1 ECM Revert Cycle Timing ................................................................................................. G–8
G.2.2.2 ECMv2 Backoff Algorithm ................................................................................................ G–8
G.3 ECM Operation ................................................................................................................ G–10
G.3.1 ECM Operation – CDM-840 Serial Remote Control ............................................................... G–11
G.3.2 ECM Operation – HTTP Interfaces ......................................................................................... G–12
G.3.2.1 CDM-840 HTTP Operation – Remote Router Terminals ................................................ G–14
G.3.2.2 CDD-880 HTTP Operation – Hub Channel Controller (HCC) ........................................... G–17
G.3.2.2.1 Tap Message ............................................................................................................ G–19
G.3.2.2.2 HCC Configuration ................................................................................................... G–19
G.3.2.2.3 Hub
Operation ......................................................................................................... G–19
APPENDIX H. HEADER AND PAYLOAD COMPRESSION ............................................... H–1
H.1 Functional Overview .......................................................................................................... H–1
H.1.1 Traffic Optimization ..................................................................................................................H–2
H.1.2 Compression Performance .......................................................................................................H–2
H.2 CDM-840 Header and Payload Compression Operation ....................................................... H–4
H.2.2 Enable or Disable Header and Payload Compression Operation .............................................H–6
H.2.3 Configure Header and Payload Compression Refresh Rates ....................................................H–7
H.2.4 View Header and Payload Compression Statistics ...................................................................H–8
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