Envision Peripherals NV3128 manual Solution

Page 18

Video equipment offers a sufficient diversity of control options to add another layer of complexity to routing.

The Sony BVU machines have a single D connector for both controlling and controlled traffic. The direction of data traffic is controlled by the remote switch.

The Sony BETA machines hard wire two D connectors together, again for both controlled and controlling traffic. Although the second connector facilitates daisy-chained control, it does nothing to diminish the probability of bus contention this feature invites.

D1 and D2 VTRs use two D connectors, configurable with software as controlled or controlling. Additionally, these machines can resolve their involvement in bus contention in a daisy-chained control configuration.

Traditionally, installations have resorted to relay routers or analog audio routers to switch machine control data, and have just had to tolerate the limitations and expense caused by the logistical complexity. Analog audio routers and relay routers share three further disadvantages: They take up a lot of space, they use a lot of electricity and they cost a lot money.

A SOLUTION:

The NV3128 fully addresses the idiosyncrasies of routing RS-422A machine control data. Its compact, eight rack-unit frame is small enough to be installed in the suite. Its 65 watt off-the-line power requirement is less than most light bulbs. And its cost is a fraction of alternative solutions. Capable of NRZI data rates up to 5 Mbits/Sec., it offers 128 I/O ports in a non-blocking X-Y matrix. It is also available in a 64-port configuration that can be field upgraded to 128 ports by simply adding an additional I/O module.

NV3128 RS-422A Machine-Control Data Switch

1-8

Image 18
Contents Nvision PrintingHistory WarrantyStatement TechnicalSupport ImportantSafeguardsandNotices Page Page NorthAmericanPowerSupplyCords Tableofcontents Page Generalinformation NV3128 RS-422A Machine-Control Data Switch Generalinformation GeneralArchitecture 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 Multidrop Command Chains PhysicalSystem Specifications Ancillary Equipment1NV3128SPECIFICATIONS Installation NV3128 RS-422A Machine-Control Routing Switch Chapter TWO Installation NV3128 RS-422A Machine-Control Routing Switch Frame Installation Universal Control or Command Interpreter Partitioning ObsoletePartition DIP Switches Obsolete Settings RE-INITIALIZE BIT/MULTIDROP Enable s7Matrix Control II Jumpers Obsolete Input Length s8-s5RS-422A RS-232 Configuring the Diagnostic Interface Obsolete Parallel Interface ObsoleteJumper Enabled Disabled Configuring the Reference Input Reference Input Ground ObsoleteCabling the Serial Command Interface Cabling the NV3128PIN RS232 Obsolete RS-232 DCE VS. DTE Decision ObsoletePIN Connector Adding a Redundant Controller Implementing HOT Changeover ObsoletePC Diagnostic Interface UNIDIAG/NVUTILS Cabling CompleteRear Connections NEW Frame Rear Ections OLD Frame Rearconnections OLD Frame General PC-BASED Software Installation ObsoleteInstallation NvtakeSoftware Installation Fixed Disk Sample Install SessionHardware Configuration Operation from a Floppy DiskOperation NV3128 RS-422A Machine Control Data Routing Switch Operations Connection NotesPOINT-TO-POINT Connection Rules Multidrop Connection RulesComputer Utilities Obsolete Operations Operating Instructions Nvtake ObsoleteInvocation F3 Change Router LevelF1 Sending a Single Take F9 Build a Salvo Table F10 Load a Salvo from Disk F2 Send a SalvoF5 Query Multiple Connections F6 List Destinations Connected to a SourceOperating Instructions Nvmap Obsolete OperationNV3128 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 System Control StructureNV3128 RS-422A Machine-Control Data Routing Switch Circuit Operation 1 I/O Connector InterfaceSignal Backplane Assy EM0038-XXCrosspoints Crosspoint Module Assy EM0041-XXInput Data Output Data4 I/O Assembly EM0040-XX Mapping Asynchronous Timing Parallel Interface Command Interpreter onlyPower Regulation PartitioningPower 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 Scheduled Maintenance Customer SupportReliability Troubleshooting Isolating FaultsPower Signal Path Mapping and Command ProblemsNV3128 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