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MN/CRS100.IOM 1–1

Chapter 1. INTRODUCTION

The CRS-100 1:1 Redundancy Switch (Figure 1-1) is a companion product for use with

Comtech EF Data CDM-500, CDM-550 or CDM-550T Modems. Its purpose is to

continuously monitor a pair of modems (in a redundant configuration) so that, in the

event of an equipment failure (or an undesired traffic condition), the unit will

automatically switch data and IF signals from the failed unit to the Standby unit. In this

manner, traffic paths are fully protected, and the system operator can have increased

confidence that equipment failures will not adversely affect system availability.

Figure 1-1. CRS-100

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