RAD Data comm RSD-20 operation manual 6DIHW\DUQLQJV

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Contents RSD-20 DUUDQW\ 6DIHW\DUQLQJV HFODUDWLRQRI&RQIRUPLW\ Table of Contents Introduction GeneralFunctional Description Specifications Physical IndicatorsPower OrderingAC Power InstallationPhysical Installation Electrical InstallationInternal Switches and Strap Selection Rear PanelRear Panel Installation Installation Synchronization on Main Channel Modem’s Clock System Synchronization and Clock DistributionRSD-20/V.35 Synchronization on Main Channel Modem ClockSynchronization on Internal Clock Synchronization on RSD-20 Internal ClockSynchronization on Sub-channel RSD-20Main and all sub-channels are DCE attached to DTEs RSD-20/X.21External Clock for more than one Sub-channel Main channel is DTE attached to a modemMain channel is DCE and sub-channels are mixed DTE and DCE Controls and Indicators OperationFront Panel Operation Operating ProcedurePower Turn On Power Turn OffRSD Malfunction Fault Isolation ProcedurePower Supply Operational Field Strapping ChangesIntroduction ContentionSUB-CHANNEL Disable Theory of Operation and ApplicationsRSD-20/V.35 Control SignalsMain Channel Control Signals Sub-channel Control SignalsRSD-20/X.21 Theory of Operation and Applications RSD-20 Operators Manual Theory of Operation and Applications RSD-20 Operating Modes ApplicationsAppendix a Table A.1 X21 Interface Signal DescriptionAppendix B Table B.1 Interface Signal Description