Comtech EF Data CDD-880, Installation And Operation Manual

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CDD-880 Multi Receiver Router MN-CDD880
Appendix D Revision 2
D–16
D.3.2 CDM-840 HTTP Operation – Remote Router Terminals
Click the Configuration tab, and then the ECM tab to open the page ( Figure D-7 ).
Figure D-7. CDM-840 HTTP Interface – Configuration | ECM Page
ECM Remote Configuration
•
Mode: – Use the drop-down list to select operation as Disabled , Offline , Wait , or Online .
Each ECM state establishes a different role for the CDM-840 in the overall Advanced VSAT
Network operations:
o
Online
– This is the most common ECM state, whereby the CDM-840 powers up,
requests network registration, and switches to dSCPC at the minimum site policy data
rate setting.
o
Wait – Keeping a CDM-840 in the ECM channel can result in
oversubscription
, where
some percentage of CDM-840s waits their turn for SCPC pooled resources. To avoid
oversubscription, this ECM state provides the network operator with the ability to
selectively control the CDM-840s through manual, scheduled, or externally switched
request commands.
With the CDM-840s set to Wait , they continue to send their health status update
messages to the VMS and to the CTOG-250 Comtech Traffic Optimization Gateway (with
integrated CDM-800 Gateway Router). The VMS messages update connected link status;