Manuals / Envision Peripherals / Computer Equipment / Network Router

Envision Peripherals NV3128 manual Tableofcontents, Theory

Models: NV3128

1 92

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1. GENERAL INFORMATION		1-1
1.1	General	1-3
1.2	Architecture	1-4
1.3	I/O	1-12
1.4	Physical	1-12
1.5	Ancillary Equipment	1-13
1.6	Specifications	1-14
2. INSTALLATION		2-1
2.1	HARDWAREINSTALLATION	2-3
2.2	CONFIGURATION	2-6
2.3	CABLING	2-14
2.4	ADDINGAREDUNDANTCONTROLLER	2-18
2.5	IMPLEMENTINGHOTCHANGEOVER	2-18
2.6	PCDIAGNOSTICINTERFACE	2-19
3. OPERATION		3-1
3.1	CONNECTIONNOTES	3-3
3.2	COMPUTERUTILITIES	3-5
4. THEORY	OF OPERATION	4-1
4.1	System	4-3
4.2	Circuit Operation	4-5
5. MAINTENANCE AND TROUBLESHOOTING		5-1
5.1	Customer Support	5-3
5.2	Scheduled Maintenance	5-3
5.3	Reliability	5-3
5.4	Troubleshooting	5-4
GLOSSARY	...................................................................................................................	G-1
INDEX		Index-1

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Contents

RoutingSwitch Instruction Manual ManualPartNumberMN3128-00BNVISION NV3128Copyright PrintingHistoryAllRightsReserved ModelNV3128Manual,Edition2 Printed in the U.S.AWarrantyStatement Year2000WarrantyStatementDisclaimer FCCUSAComplianceStatement TechnicalSupportEuropeanCommunityCEDeclarationofConformance TelephoneSymbolsandTheirMeanings ImportantSafeguardsandNoticesWarnings Cautions InternationalPowerSupplyCords NorthAmericanPowerSupplyCordsBrown Line Blue Neutral Ground Earth Green or Green with Yellow Stripe4. THEORY TABLEOFCONTENTSPage CHAPTER1GENERALINFORMATION NV3128 RS-422A Machine-Control Data SwitchNV3128 RS-422A Machine-Control Data Switch CHAPTER 1 - GENERALINFORMATION 1.1 GENERALNV3128 RS-422A Machine-Control Data Switch NV3128 RS-422A Machine-Control Data Switch 1.2 ARCHITECTURE BACKGROUNDNV3128 RS-422A Machine-Control Data Switch Because commands are broadcast on one balanced pair and responses received on another, the systems crosspoint count, wiring density and complexity are inherently double that of a video or audio router. Fig. 1.2 shows the two- level connection required to implement a route through a conventional data switch. To pass through the switch, the connection must be separated into two components the command, which travels from source to destination, and the response, which returns through the switch from destination to source. Cables are split such that transmitting pins from both machines are hooked to switch input blocks, and receivers to output blocks. Additionally, the router-control system must be highly specialized, for it now must address two connections with every connect command it issues NV3128 RS-422A Machine-Control Data SwitchNV3128 RS-422A Machine-Control Data Switch To further complicate matters, the sense of transmit and receive connections in many modern machines is switchable. That is, internal circuitry within the machine reassigns the interface pin assignments to allow it to operate in either controlled or controlling mode. Fig. 1.3 illustrates the physical pin swapping within each of two directly connected devices. On most units the changeover is a physical switch, but on some, such as the Sony D1 VTR, the pin flip is under software control. In either case, the traditional routing switch cannot adapt to a reversal of data direction, and thus severely compromises a systems flexibility. Referring again to Fig. 2, note that the physical connection fixes the operating mode - controlled or controlling - of the device. If pin pair 3/8 from a machine is connected to a router input, then that machine is a controlling device from now until someone gets out a crimping tool and rewires the connectionNV3128 RS-422A Machine-Control Data Switch A SOLUTIONNV3128 RS-422A Machine-Control Data Switch DYNAMIC PORTSCROSSPOINTARCHITECTURE 1-10NV3128 RS-422A Machine-Control Data Switch NV3128 RS-422A Machine-Control Data Switch 1-111.3 I/O MULTIDROP COMMAND CHAINS1.4 PHYSICAL 1-121.5 ANCILLARY EQUIPMENT 1.6 SYSTEM SPECIFICATIONS1-13 NV3128 RS-422A Machine-Control Data Switch1-14 TABLE1-1NV3128SPECIFICATIONSNV3128 RS-422A Machine-Control Data Switch INPUTS/OUTPUTSNV3128 RS-422A Machine-Control Routing Switch CHAPTER 2 INSTALLATIONNV3128 RS-422A Machine-Control Routing Switch CHAPTER TWO - INSTALLATION 2.1 HARDWARE INSTALLATIONNV3128 RS-422A Machine-Control Routing Switch NV3128 RS-422A Machine-Control Routing Switch a. LEDs on the Power Supply front panel should glowNV3128 RS-422A Machine-Control Routing Switch FIGURE 2.1 FRAME INSTALLATION2.2.1 THE UNIVERSAL CONTROL OR COMMAND INTERPRETER 2.2 CONFIGURATION2.2.2 PARTITIONING OBSOLETE NV3128 RS-422A Machine-Control Routing SwitchPARTITION BIT SWITCH - SECTION B PARTITION DIP SWITCHES OBSOLETENV3128 RS-422A Machine-Control Routing Switch S293ENABLE s8 SETTINGSRE-INITIALIZE BIT/MULTIDROP ENABLE s7 NV3128 RS-422A Machine-Control Routing Switch2.2.3 MATRIX CONTROL II JUMPERS OBSOLETE SETTINGSJUMPER MEANING2.2.4.1 JUMPER SETTINGS OBSOLETE 2.2.4 CONFIGURING THE SERIAL INTERFACE OBSOLETERS-422A RS-2322.2.5 PARALLEL INTERFACE OBSOLETE 2.2.6 CONFIGURING THE DIAGNOSTIC INTERFACE OBSOLETE2-11 NV3128 RS-422A Machine-Control Routing SwitchENABLED SIGNALDISABLED FLOATFUNCTION 2.2.7 CONFIGURING THE REFERENCE INPUTFLOATING REFERENCE INPUT GROUND OBSOLETE2.3 CABLING THE NV3128 2.3.2 CABLING THE SERIAL COMMAND INTERFACE2.3.1 DATA I/O RS-422AControlledDevice ControllingDevice2-15 NV3128 RS-422A Machine-Control Routing SwitchRS-232 DCE VS. DTE DECISION OBSOLETE RS232 OBSOLETE2-16 1. Configure the Control Interface Module as a DTE9-PIN CONNECTOR 2-1725-PIN CONNECTOR NV3128 RS-422A Machine-Control Routing Switch2.5 IMPLEMENTING HOT CHANGEOVER OBSOLETE 2.4 ADDING A REDUNDANT CONTROLLER2-18 NV3128 RS-422A Machine-Control Routing SwitchCABLING COMPLETE 2.6 PC DIAGNOSTIC INTERFACE UNIDIAG/NVUTILS2-19 NV3128 RS-422A Machine-Control Routing SwitchNV3128 RS-422A Machine-Control Routing Switch 2-20CONTROL SYSTEM CONNECTORS UNIDIAG REAR CONNECTOR VIDEO REF INPUTS 1 MACHINE CONTROL CONNECTORS 12-21 NV3128 RS-422A Machine-Control Routing SwitchFIG 2-3. REAR CONNECTIONS OLD FRAME INSTALLATION 2.4 PC-BASED SOFTWARE INSTALLATION OBSOLETEGENERAL NVTAKEE. SAMPLE INSTALL SESSION SOFTWARE INSTALLATION FIXED DISKNVTAKE V 1 =========================OPERATION FROM A FLOPPY DISK HARDWARE CONFIGURATION2-24 NV3128 RS-422A Machine-Control Routing SwitchCHAPTER3OPERATION NV3128 RS-422A Machine Control Data Routing SwitchNV3128 RS-422A Machine Control Data Routing Switch CHAPTER 3 - OPERATIONS 3.1 CONNECTION NOTESNV3128 RS-422A Machine Control Data Routing Switch 3.1.1 POINT-TO-POINT CONNECTION RULES 3.1.2 MULTIDROP CONNECTION RULESNV3128 RS-422A Machine Control Data Routing Switch Command Interpreter module. Newer systems with the Universal 3.2 COMPUTER UTILITIES OBSOLETENV3128 RS-422A Machine Control Data Routing Switch The following information applies only to older systems with theINVOCATION 3.2.1 OPERATING INSTRUCTIONS - NVTAKE OBSOLETENVTAKE H U V E R 12 OPERATIONSEXAMPLE F1 SENDING A SINGLE TAKENV3128 RS-422A Machine Control Data Routing Switch SOURCE ADDRESSF9 - BUILD A SALVO TABLE NV3128 RS-422A Machine Control Data Routing SwitchF2 - SEND A SALVO F10 - LOAD A SALVO FROM DISKNV3128 RS-422A Machine Control Data Routing Switch The F10 function key loads a file from the current directory from which NVTAKER was launched. The program asks for the name of the file defining the salvo. Enter the name with no extensionF4 - QUERY A SINGLE CROSSPOINT QUERYING SYSTEM CONNECTIONS VISTEK PROTOCOL ONLYF5 - QUERY MULTIPLE CONNECTIONS F6 - LIST DESTINATIONS CONNECTED TO A SOURCEINVOCATION NVMAP H U V E R 3.2.2 OPERATING INSTRUCTIONS - NVMAP OBSOLETEOPERATION 3-11NV3128 RS-422A Machine Control Data Routing Switch 3-123-13 NV3128 RS-422A Machine Control Data Routing SwitchScreen 3-14 NV3128 RS-422A Machine Control Data Routing SwitchEditing the scramble map CHAPTER4 THEORYOFOPERATION NV3128 RS-422A Machine-Control Data Routing SwitchNV3128 RS-422A Machine-Control Data Routing Switch 4.1 SYSTEM CHAPTER FOUR - THEORY OF OPERATION4.1.1 CONTROL STRUCTURE NV3128 RS-422A Machine-Control Data Routing SwitchNV3128 RS-422A Machine-Control Data Routing Switch 4.2.2 SIGNAL BACKPLANE 4.2.1 I/O CONNECTOR INTERFACE4.2 CIRCUIT OPERATION ASSY EM0038-XXINPUT DATA 4.2.3 CROSSPOINT MODULE ASSY EM0041-XXCROSSPOINTS OUTPUT DATANV3128 RS-422A Machine-Control Data Routing Switch 4.2.4 I/O ASSEMBLY EM0040-XXMAPPING Further, the assembly contains all circuitry required to configure theNV3128 RS-422A Machine-Control Data Routing Switch POWER REGULATION PARALLEL INTERFACE COMMAND INTERPRETER ONLYASYNCHRONOUS TIMING PARTITIONING4.2.5 POWER SUPPLY ASSY PS2001-XX 4-10NV3128 RS-422A Machine-Control Data Routing Switch 4-11 NV3128 RS-422A Machine-Control Data Routing SwitchMetal oxide varistors DV1 and DV2 clamp voltage spikes on the AC input lines to safe levels NV3128 RS-422A Machine-Control Data Routing Switch 4-12NV3128 RS-422A Machine Control Data Routing Switch CHAPTER 5 MAINTENANCEAND TROUBLESHOOTINGNV3128 RS-422A Machine Control Data Routing Switch 5.2 SCHEDULED MAINTENANCE CHAPTER 5 - MAINTENANCE AND TROUBLESHOOTING5.1 CUSTOMER SUPPORT 5.3 RELIABILITY5.4.1 ISOLATING FAULTS 5.4 TROUBLESHOOTINGPOWER NV3128 RS-422A Machine Control Data Routing SwitchMAPPING AND COMMAND PROBLEMS SIGNAL PATH1. Route the problem signal to a new crosspoint/output address NV3128 RS-422A Machine Control Data Routing SwitchNV3128 RS-422A Machine Control Data Routing Switch NV3128 RS-422A Machine-Control Data Routing Switch GLOSSARYNV3128 RS-422A Machine-Control Data Routing Switch NV3128 RS-422A Machine-Control Data Routing Switch GLOSSARYAES/EBU NTSC NV3128 RS-422A Machine-Control Data Routing SwitchNV3128 RS-422A Machine-Control Data Routing Switch Picture element of a television signalVCXO Voltage Controlled Crystal OscillatorNV3128 RS-422A Machine-Control Data Routing Switch INDEX Index-1NV3128 RS-422A Machine-Control Data Switch NV3128 RS-422A Machine-Control Data Switch Index-2Index-3 NV3128 RS-422A Machine-Control Data SwitchIndex NV3128 RS-422A Machine-Control Data Switch Index-4I/O Assembly theory Jumper and Switch Settings 2-6 Jumper J1 - 115/230 VACNV3128 RS-422A Machine-Control Data Switch Index-5ST type connector SimplexNV3128 RS-422A Machine-Control Data Switch Index-6