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CDD-880 Multi Receiver Router
Appendix D
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;
D–16
MN-CDD880
Revision 2
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