Figure d-4 switch rate limits, inband return path – Comtech EF Data CDM-570/570L Vipersat User Manual

Page 177

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Appendix

D -

ECM Migration

D-7

Migration Procedure

Example: The recommended settings for 64 kbps, QPSK, 3/4

Guardband—60 msec
Preamble Length—300 msec
Total Slot Count—10

Tip: A Vipersat calculator is available to optimize these settings. Contact a

Comtech Vipersat Networks representative for a copy of the latest

Vipersat ECM Calculator.

There is no Remote List for ECMv2 like there is for ECMv1. Therefore, there is

no need to enable the Remotes in the burst map, nor to set a desired dSCPC

switch rate.
With ECMv2, the Remote sites will switch out to dSCPC using the Minimum

Switch Rate Limit from the Inband Return Path settings, as shown in

figure D-4 below.

Figure D-4 Switch Rate Limits, InBand Return Path Settings Page

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