Appendix D. Ecm (Entry Channel Mode; Ecm (Entry Channel Mode) Overview - Comtech EF Data CDD-880 Installation And Operation Manual

D.1

ECM (Entry Channel Mode) Overview

•
Comtech EF Data CDM-840 Remote Router Installation and Operation Manual (CEFD
P/N MN-CDM840)
• Comtech EF Data ODM-840 Remote Router / ODMR-840 Reduced Form Factor
Remote Router / ODMR-840B Remote Router Board Set Installation and Operation
Manual (CEFD P/N MN-ODM840)
Figure D-1 illustrates the processing diagram for Entry Channel Mode (ECM) messaging. ECM is a
feature based on slotted ALOHA with random retransmission backoff. ECM supports multiple
carriers through frequency assignments, which provide simplified deployment and scalability.
Appendix D. ECM (ENTRY
Figure D-1. ECM – Message Processing Diagram
CHANNEL MODE)
D–1