RAD Data comm operation manual RSD-20 Operators Manual

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RSD-20 OPERATOR'S MANUAL	THEORY OF OPERATION AND APPLICATIONS

Figure 4.1

Main Channel DTE with Sub-channel DCE

Figure 4.2

Main Channel DCE with Sub-channel DTE

4.4

Image 25

Contents RSD-20 DUUDQW\ 6DIHW\DUQLQJV HFODUDWLRQRI&RQIRUPLW\ Table of Contents General IntroductionFunctional Description Specifications Power IndicatorsOrdering PhysicalPhysical Installation InstallationElectrical Installation AC PowerRear Panel Internal Switches and Strap SelectionRear Panel Installation Installation RSD-20/V.35 System Synchronization and Clock DistributionSynchronization on Main Channel Modem Clock Synchronization on Main Channel Modem’s ClockSynchronization on Internal Clock Synchronization on RSD-20 Internal ClockSynchronization on Sub-channel RSD-20External Clock for more than one Sub-channel RSD-20/X.21Main channel is DTE attached to a modem Main and all sub-channels are DCE attached to DTEsMain channel is DCE and sub-channels are mixed DTE and DCE Operation Controls and IndicatorsFront Panel Power Turn On Operating ProcedurePower Turn Off OperationPower Supply Fault Isolation ProcedureOperational Field Strapping Changes RSD MalfunctionSUB-CHANNEL Disable ContentionTheory of Operation and Applications IntroductionMain Channel Control Signals Control SignalsSub-channel Control Signals RSD-20/V.35RSD-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

RSD-20 OPERATOR'S MANUAL