Envision Peripherals NV3128 manual Asynchronous Timing, Partitioning, Power Regulation

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ASYNCHRONOUS TIMING

Asynchronous system timing consists of two signals. The first, derived from the reference video input’s re-trace interval, activates the pre-loaded informationinthecrosspoint’sdouble-bufferedregisters.Thisactionexecutes a take. The second timing signal is a system master clock.

A sync stripper derives the vertical retrace pulse and passes it on to a microprocessor for processing into strobe and write-enable signals.

An oscillator provides the master clock for the entire system. When used on the NV3128, this oscillator free runs.

PARTITIONING

On the Command Interpretertwobanks of DIP switches and theirassociated circuitryconfiguretheNV3128intopartitions.Additionally,softwareversions supporting various controllers may make use of these switches for supplementaryconfigurationcontrol.

On the newer Universal Control module, partitioning is set up using UniDiag and stored in memory.

PARALLEL INTERFACE (COMMAND INTERPRETER ONLY)

Line driver/receivers interface with the parallel RS-422A circuits that characterize the PESAprotocol interface. Aprogrammable gate array and matrixSRAMworkinconjunctiontogatherandprocessthisveryhighspeed data.

POWER REGULATION

Power regulator circuitry regulates the incoming raw DC voltage from the PS2001 power supply to +/-15VDC and +/-5VDC respectively.

NV3128 RS-422A Machine-Control Data Routing Switch

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Contents Nvision PrintingHistory WarrantyStatement TechnicalSupport ImportantSafeguardsandNotices Page Page NorthAmericanPowerSupplyCords Tableofcontents Page Generalinformation NV3128 RS-422A Machine-Control Data Switch General GeneralinformationArchitecture Background NV3128 RS-422A Machine-Control Data Switch NV3128 RS-422A Machine-Control Data Switch NV3128 RS-422A Machine-Control Data Switch Solution Dynamic Ports Crosspointarchitecture NV3128 RS-422A Machine-Control Data Switch Physical Multidrop Command ChainsAncillary Equipment System Specifications1NV3128SPECIFICATIONS Installation NV3128 RS-422A Machine-Control Routing Switch Chapter TWO Installation NV3128 RS-422A Machine-Control Routing Switch Frame Installation Partitioning Obsolete Universal Control or Command InterpreterPartition DIP Switches Obsolete RE-INITIALIZE BIT/MULTIDROP Enable s7 SettingsInput Length s8-s5 Matrix Control II Jumpers ObsoleteRS-422A RS-232 Parallel Interface Obsolete Configuring the Diagnostic Interface ObsoleteJumper Enabled Disabled Reference Input Ground Obsolete Configuring the Reference InputCabling the NV3128 Cabling the Serial Command InterfacePIN RS-232 DCE VS. DTE Decision Obsolete RS232 ObsoletePIN Connector Implementing HOT Changeover Obsolete Adding a Redundant ControllerCabling Complete PC Diagnostic Interface UNIDIAG/NVUTILSRear Connections NEW Frame Rear Ections OLD Frame Rearconnections OLD Frame Nvtake PC-BASED Software Installation ObsoleteInstallation GeneralSample Install Session Software Installation Fixed DiskOperation from a Floppy Disk Hardware ConfigurationOperation NV3128 RS-422A Machine Control Data Routing Switch Connection Notes OperationsMultidrop Connection Rules POINT-TO-POINT Connection RulesComputer Utilities Obsolete F3 Change Router Level Operating Instructions Nvtake ObsoleteInvocation OperationsF1 Sending a Single Take F9 Build a Salvo Table F2 Send a Salvo F10 Load a Salvo from DiskF6 List Destinations Connected to a Source F5 Query Multiple ConnectionsOperation Operating Instructions Nvmap ObsoleteNV3128 RS-422A Machine Control Data Routing Switch Screen NV3128 RS-422A Machine Control Data Routing Switch Theoryofoperation NV3128 RS-422A Machine-Control Data Routing Switch Control Structure SystemNV3128 RS-422A Machine-Control Data Routing Switch Assy EM0038-XX 1 I/O Connector InterfaceSignal Backplane Circuit OperationOutput Data Crosspoint Module Assy EM0041-XXInput Data Crosspoints4 I/O Assembly EM0040-XX Mapping Partitioning Parallel Interface Command Interpreter onlyPower Regulation Asynchronous TimingPower Supply Assy PS2001-XX NV3128 RS-422A Machine-Control Data Routing Switch NV3128 RS-422A Machine-Control Data Routing Switch Maintenanceand Troubleshooting NV3128 RS-422A Machine Control Data Routing Switch Reliability Scheduled MaintenanceCustomer Support Power TroubleshootingIsolating Faults Mapping and Command Problems Signal PathNV3128 RS-422A Machine Control Data Routing Switch Glossary NV3128 RS-422A Machine-Control Data Routing Switch AES/EBU MOV Vcxo NV3128 RS-422A Machine-Control Data Routing Switch Index NV3128 RS-422A Machine-Control Data Switch Index-2 Index NV3128 RS-422A Machine-Control Data Switch Index-4 NV3128 RS-422A Machine-Control Data Switch Index-5 NV3128 RS-422A Machine-Control Data Switch Index-6