Comtech EF Data CRS-300 1:10 Modem Redundancy Switch System

CRS-300 1:10 Modem Redundancy Switch

The Comtech CRS-300 1:10 Modem Redundancy Switch provides fully automatic or manual redundancy for the following modems: CDM-570A & CDM-570AL CDM-625 & CDM-625A CDM-700 CDM-570 & CDM-570L CDM-Qx & CDM-QxL CDM-710 CDM-600 & CDM-600L SLM-5650A CDM-710G The protection system consists of a maximum of 10 traffic modems, a redundant modem, and the CRS-300 redundancy switch. Two companion (slaved) 1:10 switches are also available: the CRS-280/ 280L IF switch and the CRS-350 ESC switch. The IF switch is used in multiple transponder applications. The CRS-350 is used for open network ESC redundancy switching.

Compatibility

The CRS-300 supports a wide range of terrestrial data interface types including: EIA-422/530, V.35, EIA-232, LVDS, G.703 (balanced or unbalanced), ASI, 10/100/1000 Ethernet and HSSI. In many cases, each traffic modem can have a different terrestrial data interface types. 

Key Features

 Twin, independent AC or DC power supplies

 Passive backplane for signal path

 Non-interruption of normal traffic upon power failure

 Non-interruption of user data when other traffic modem Interface circuit cards are removed

 Data and clock provided to the redundant modem when in Bridge Mode

 Programmable holdoff times to backup or restore

 Audible alarm programmable to activate, based on various changes in status

 Provides single-point remote Monitor and Control (M&C) to switch and traffic modems

 Simplified configuration and control

 2 line x 24 character vacuum fluorescent display

 Front panel keypad

 LED system status display showing unit and modem status, online/offline status, and bridge status

RF Interface Panel