NVision NV3128 Instruction Manual Download

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NV3128 RS-422A Machine Control Data Routing Switch

3-1

CHAPTER 3: OPERATION

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Summary of Contents for NV3128

Page 1: ...NV3128 RS 422AMachine ControlData RoutingSwitch ManualPartNumber MN3128 00B InstructionManual NVISION All manuals and user guides at all guides com a l l g u i d e s c o m ...

Page 2: ...tofthismanualmaybereproducedinanyformbyphotostat microfilm xerography oranyothermeans orincorporatedintoanyinformationretrieval system electronicormechanical withoutthewrittenpermissionofNVISION Inc Notice TheinformationcontainedinthisOperationsManualissubjecttochangewithout noticeorobligation All manuals and user guides at all guides com ...

Page 3: ...is remedy is exclusive In no event shall NVISION be liable for any incidental or consequential damages including loss of profit Year2000WarrantyStatement NVISION Inc warrantsthatallofitshardware firmware andsoftwareproductsarenotdate codesensitive and that their functionality will not be affected or altered in any way by a 21st century date code NVISIONcannotwarrantthattheperformanceofNVISIONprodu...

Page 4: ...esigned to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instruction manual may cause harmful interference in which case the user will be required to correct the interference at their own expense EuropeanCo...

Page 5: ...to constitute a risk of electric shock to persons The exclamation point within an equilateral triangle alerts the user to the presence of importantoperatingandmaintenance serviceinstructions Theseinstructionsmayinclude warnings or cautions advising about the potential for damage to equipment or danger to personnel The Ground symbol represents a protective grounding terminal Such a terminal must be...

Page 6: ...orwristwatcheswhentroubleshootinghighcurrentcircuitssuchasthepowersupplies During installation grasp the chassis of the equipment firmly and lift with your legs do not bend over at the waist to lift heavy items Moreover do not rely on door handles or front panels to lift the equipment as they are not intended for this purpose To avoid fire hazard use only the specified fuse s with the correct type...

Page 7: ...supply or servicing the equip ment Use only the specified replacement parts Follow static precautions at all times when handling this equipment This product should only be powered as described in the manual To prevent equipment damage select the proper line voltage at the AC input connector if applicable as described in the installation documentation To prevent damage to the equipment read the ins...

Page 8: ...nfigurations Line Neutral Ground Earth Green or Green with Yellow Stripe Blue Brown InternationalPowerSupplyCords The power cords supplied with this equipment have a molded grounding receptacle IEC 320 C13 at one end and stripped conductors 50 5 mm at the other end Conductors are CEE color coded Light blue neutral Brown line and Green Yellow ground Other IEC 320 C13 type power supply cords can be ...

Page 9: ... 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 CustomerSupport 5 3 5 2 ScheduledMaintenance 5 3 5 3 Reliability 5 3 5 4 Troubleshooting 5 4 GLOSSARY G 1 INDEX Index 1...

Page 10: ...All manuals and user guides at all guides com ...

Page 11: ...NV3128 RS 422A Machine Control Data Switch 1 1 CHAPTER1 GENERALINFORMATION All manuals and user guides at all guides com a l l g u i d e s c o m ...

Page 12: ...NV3128 RS 422A Machine Control Data Switch 1 2 All manuals and user guides at all guides com ...

Page 13: ... NV3128 can be synchronized to a video black burst signal or it can free run Takes occur during the vertical retrace interval of the video reference or during a calculated recreation of that interval if video is not present Router control systems typically communicate over serial RS 422A lines and this is what the new Universal Control Card uses The obsolete Command Interpreter card used in older ...

Page 14: ...unication creates its own level of complexity The Electronic Industry Associates RS 422A is a balanced serial 4 wire transmission technique with a line driver and receiver at either end of the link In the typical video or audio production machine hookup one machine is master and one or more machines are slaved The master is referred to as a controlling device the slave as a controlled device The c...

Page 15: ...NV3128 RS 422A Machine Control Data Switch 1 5 All manuals and user guides at all guides com ...

Page 16: ...ass 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...

Page 17: ...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 connection Yet another frustration in implementing a switched machine control system one to many connections have historically been problematic Sending a command down a daisy chain of slaved devices is n...

Page 18: ...ontrol 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...

Page 19: ...face to which a machine is connected without regard to data direction Between the physical interface and the X Y crosspoint matrix is a gated pair of RS 422A transceivers Upon receipt of a Take command the routers Control Card Command Interpreter parses the incoming connection information and designates the port to which the source device is connected as controlled and the port to which the target...

Page 20: ...ncepts of input and output sufficient to describe program route matrices no longer have meaning Despite the complexity inherent in the dynamic ports is an expanded capability Unlike a program router which has a fixed I O dimension each of the 128 ports can be connected to any other port Each of the ports can be either source or destination For each requested machine connection the router uses the ...

Page 21: ...NV3128 RS 422A Machine Control Data Switch 1 11 All manuals and user guides at all guides com a l l g u i d e s c o m ...

Page 22: ...nal cabling Data port connectors are RS 232 9 pin D Video reference input ports are BNC A female 9 pin D connector recieves the serial router control system cable and a 37 pin female D connector implements a parallel router control interface older frames only Both control interfaces and both reference inputs provide unbuffered loop through connectors 1 4 PHYSICAL Physically the NV3128 frame instal...

Page 23: ... wide and growing family of ancillary products including the NV1000 series processing equipment and the NV4000 series These product lines include analog AES EBU SDI and HD SDI distribution amplifiers reference generators delay modules codecs DACs ADCs digital audio embedders disembedders and fiber optic transceivers and converters 1 6 SYSTEM SPECIFICATIONS Specifications for the NV3128 Data Router...

Page 24: ...InputImpedance 100ohms InputRange 200mVto10Vp p Output 7Vp p LowImpedance PERFORMANCE ControlUpdate 100 remapof switch 16mSec RS 422A Data Rate 5MBits sec NRZImaximum MECHANICAL Frame 8EIArackunits aluminum Dimensions 356mm W x 483mm H x 381mm D 14 x19 x15 Weight 20 5Kgs 45Lbs ELECTRICAL InputVoltage 90 135VAC 180 270VACselectable 50 60Hz Pwr Consumption 65 Wattsnominal All manuals and user guides...

Page 25: ...NV3128 RS 422A Machine Control Routing Switch 2 1 CHAPTER 2 INSTALLATION All manuals and user guides at all guides com ...

Page 26: ...NV3128 RS 422A Machine Control Routing Switch 2 2 All manuals and user guides at all guides com a l l g u i d e s c o m ...

Page 27: ...Lift the frame into the rack and secure the frame to the rack by the front mounting flanges using rack screws not supplied 4 Replace the doors on the front of each frame 5 Operate the ejector injector tabs on each of the active circuit modules to disconnect them from the backplanes Leave the modules partially inserted in the card guides but electrically disconnected CAUTION THE SETTINGOFJUMPER J1 ...

Page 28: ...the PS2001 power supply ies Secure the Power Supplies with the front panel captive latch screws 10 Cable the system as explained later in this chapter 11 Set jumpers on the Command Interpreter older systems only as discussed later in this chapter 12 Engage all active circuit modules Ensure they are plugged into their correct slots as silkscreened on the frame and front panels 13 Re connect the AC ...

Page 29: ...NV3128 RS 422A Machine Control Routing Switch 2 5 FIGURE 2 1 FRAME INSTALLATION All manuals and user guides at all guides com ...

Page 30: ... instructions have been retained for the benefit of customers who own older systems but they are labeled OBSOLETE so that they are clearly identifiable 2 2 2 PARTITIONING OBSOLETE In systems using the newer Universal Control Card partitioning is done with UniDiag Older systems with the Command Interpreter are partitioned using the steps that follow The NV3128 consists of a single physical partitio...

Page 31: ... S293 BANK 1 SECT B S290 BANK 2 SECT A S285 BANK 2 SECT B S247 The bit settings are discussed on the following pages X denotes don t care setting PARTITION BIT SWITCH SECTION A PARTITION 8 7 6 5 4 3 2 1 0 ENABLE RE INITIALIZE BANK I X LEVEL ID msb LEVEL ID lsb 1 ENABLE X X LEVEL ID msb LEVEL ID lsb PARTITIONBITSWITCH SECTIONB PARTITION 8 7 6 5 4 3 2 1 O Input Length msb Input Length lsb Output Len...

Page 32: ...itch with all outputs connected to the NULL input defined in software In Bank 2 when bit 7 is ON multidrop is enabled in a shadow partition MONITOR LEVEL BIT s6 Implemented forAES EBU digital audio versions only Not used on NV3128 LEVEL ID s5 s1 Bit 5 MSB through bit 1 LSB of the A switch section create a 5 bit binary number that is the logical level of the phsyical partition This is the level the...

Page 33: ... meaningless for the ghost partition whose input range shadows the range of the physical partition OUTPUT LENGTH s4 s1 Bit 4 through Bit 1 of the B switch section create a 4 bit binary modulo 32 number that configures the output dimension of the partition As for the input length setting the valid values for a data switch are 0100 decimal 128 NV3128 default and 0010 decimal 64 small data switch 2 2...

Page 34: ...Interpreter jumpers on the Command Interface Module select parameters appropriate to the chosen protocol To select the protocol for data interchange with the obsolete Command Interpreter set jumpers on the module as shown in the following table RS 422A RS232 SELECT J203 RS 422A RS 232 1 9 9 17 2 10 10 18 3 11 11 19 4 12 12 20 5 13 13 21 6 14 14 22 7 15 15 23 8 16 16 24 DCE DTESELECTJ284 DCE DTE 1 ...

Page 35: ...outing switch For newer systems having the Universal Control Card the program is called UniDiag For older systems having the Command Interpreter the collection of programs is called NVUtils The program s run on a PC compatible computer An RS 232 connection is made to the computer from a nine pin D connector at the front of the Control Command Interface Module or from the RS 232 Diag connector at t...

Page 36: ...tion flexibility JUMPER FLOAT GND SIGNAL J29 1 2 2 3 SignalGND J30 1 2 2 3 RI pin 9 DEFAULTCONFIGURATION Two final jumpers J500 and J700 enable or disable the diagnostic output DIAGNOSTICS ENABLE DISABLE OBSOLETE JUMPER ENABLED DISABLED J500 1 2 2 3 J700 1 2 2 3 DEFAULT CONFIGURATION All manuals and user guides at all guides com a l l g u i d e s c o m ...

Page 37: ...hen the reference input connection is daisy chained or looped through the NV3128 and end terminated at some other piece of equipment the NV3128 termination should be set to a high impedance For the newer Universal Control Card the reference should be terminated at the looping connector on the back of the frame For the older Command Interpreter jumper J72 selects the reference video impedance and j...

Page 38: ...ck marked RS 422 PRIMARY CNTRL on the new frames or RS 422 RS232 Controlled In on the old frames To implement a loop through connection for a multidrop networked command environment connect the next piece of equipment to the looping connector next to the primary control connector It should be noted that the maximum number of chained connections is six without undue signal degradation RS 422A An RS...

Page 39: ...ingDevice ControlledDevice 1 FrameGround FrameGround 2 ReceiveA TransmitA 3 TransmitB ReceiveB 4 TransmitCommon ReceiveCommon 5 Spare Spare 6 ReceiveCommon TransmitCommon 7 ReceiveB TransmitB 8 TransmitA ReceiveA 9 FrameGround FrameGround All manuals and user guides at all guides com ...

Page 40: ...tion 9 or 25 of the driving DTE The exchange may need to be reversed if a standard 25 pin 9 pin adaptor has been added to the driving device s serial port Pin out for that arrangement is shown below The rules of thumb presented on the following page may help you make the DTE DCE connection RS 232 DCE VS DTE DECISION OBSOLETE OPTION I If the controlling RS232 device communicates over a 25 pin seria...

Page 41: ... pin RS 232 wire list below 9 PIN CONNECTOR 25 PINCONNECTOR 1 8 2 3 3 2 4 20 5 7 6 6 7 4 8 5 9 22 OPTION III If the controlling RS232 device communicates over a 9 pin serial port 1 Configure the Control Interface Module as a DCE 2 Connect the Control Interface Module and the controlling device using a 9 pin to 9 pin male to female cable connected straight through no exchange of pins All manuals an...

Page 42: ...In some cases new firmware supplied on floppy disks or sent to you by email can be downloaded into the PROMs using UniDiag instead of replacing the PROMs 3 Plug both existing and new redundant control cards into the frame Note that Universal Control and Command Interpreter modules cannot be interchanged under all applications 2 5 IMPLEMENTING HOT CHANGEOVER OBSOLETE Relay terminals on the rear pan...

Page 43: ...onnector at the front of the Control Command Interface Module preferred or to the RS 422 RS 232 Diag connector at the back of the frame For newer systems detailed information about this interconnection and the diagnostic program can be found in the UniDiag manual CABLING COMPLETE You are now finished making cable connections to the NV3128 Router The remainder of this section explains how to instal...

Page 44: ... 1 REF 2 ALARMS ETHER NET NODE BUS RS 232 DIAG CTL1 CTL2 RS 232 MEZ DIAG RS 422 PRIMARY CtL VIDEO CTL1 CTL2 RS 422 SECONDARY CTL LOOP THRU LOOP THRU VIDEO REF INPUTS 1 2 UNIDIAG REAR CONNECTOR CONTROL SYSTEM CONNECTORS MACHINE CONTROL CONNECTORS 1 128 All manuals and user guides at all guides com ...

Page 45: ...NV3128 RS 422A Machine Control Routing Switch 2 21 FIG 2 2 REAR CONNECTIONS OLD FRAME FIG 2 3 REAR CONNECTIONS OLD FRAME All manuals and user guides at all guides com ...

Page 46: ...er control system The program sends takes and take salvos to the routing switch Control Interface Module using controller commands from a long and growing list of protocols Take salvos can be saved to disk and reloaded For some protocols the program affords crosspoint address queries and listings NVMAP NVMap is a multi purpose configuration and diagnostic tool It allows the user to 1 Query the rou...

Page 47: ...tinadirectorywithinthecomputer s command searchenvironment Each batch file shall first position the computer in the NVUtil subdirectory then invoke the desired program This approach guarantees that configuration and salvo files are saved to and loaded from a consistent disk location E SAMPLE INSTALL SESSION C MD NVUtils C CDNVUtils C COPYA C CD COMMANDS C EDITNVTAKE BAT SAMPLE NVTake BAT C CD NVUt...

Page 48: ...Interface earlier in this section to configure the diagnostic interface for RS 232 operation Additionally configure the serial controller data port for RS 232 operation if the use of NVTake is anticipated B Connect the RS 232 cable to the computer serial port COM1 or COM2 and to the appropriate connector on the router Control Interface NVMap communicates with the diagnostic data port J400 located ...

Page 49: ...NV3128 RS 422A Machine Control Data Routing Switch 3 1 CHAPTER3 OPERATION All manuals and user guides at all guides com ...

Page 50: ...NV3128 RS 422A Machine Control Data Routing Switch 3 2 All manuals and user guides at all guides com ...

Page 51: ...ontrolling andport3asacontrollingdevice thedestinationmachineiscontrolled 2 Sends a control message to the crosspoint matrix selecting the appropriate crosspoint connections to open the forward and reverse data channels Note that the forward and reverse data channels can also be set up using the REV SRC DEST function in UniDiag See the UniDiag manual for details about this function From the perspe...

Page 52: ...ons 3 IfrequestedSourceisinuseasaDestination FindallSourcestiedtothatport Breakthoseconnectionsandtristate theSourceports 4 ConfigureSourceandDestinationportsandmaketheforwardandreverse crosspointconnections 3 1 2 MULTIDROP CONNECTION RULES Aconnectioninwhichasinglesourceconnectsmultipledestinationsisalways addressedonLevelII Thefirst destinationconnectedisthecontrolleddevice with answer back capa...

Page 53: ... NVtake is a simple minimally featured router control system The program sends takes and take salvos to the routing switch Control Interface Module using controller commands from a long and growing list of protocols Take salvos can be saved to disk and reloaded For some protocols the program enables crosspoint address queries and listings NVMAP NVMap is a multi purpose configuration and diagnostic...

Page 54: ...oftheprogramareinvokedwithfunctionkeysfrom thefollowinglist F1 Sendasingletake F2 Send a salvo of takes F3 Changetoleveltowhichthecontrollersendscommands F4 Queryasinglecrosspoint Vistekprotocolonly F5 List10sequentialcrosspointconnections Vistekprotocolonly F6 Listalldestinationsconnectedtoasinglesource Vistekprotocolonly F3 CHANGE ROUTER LEVEL The F3 function key allows changing the level to whi...

Page 55: ...ered the take is sent to the router s Control Interface A results message is displayed on the lower right hand portion of the screen either COMMAND COMPLETED or TIME OUT NO RESPONSE The single take command mode supports one to many addressing allowing a single source to connect to a range of destinations The syntax for the destination address entry is START RANGE ADDRESS END RANGEADDRESS EXAMPLE S...

Page 56: ...sources are connected to a single destination the last entry over rides any predecessor ESC ends the table editing session The program asks whether or not to save the table to disk If the answer is yes The program requests a filename The program assigns the file extension SVO to the entered file name The file name must be eight characters or less so no path prefixes are permissable If the answer i...

Page 57: ... The program asks for the name of the file defining the salvo Enter the name with no extension F2 SEND A SALVO The F2 function key sends the salvo information currently in the computer s memory to the control interface A results message is displayed on the lower right hand portion of the screen either COMMAND COMPLETED or FAILED All manuals and user guides at all guides com ...

Page 58: ...he multiple crosspoint query mode The cursor is positioned on the DestinationAddress field Upon entry of the destination field the crosspoint connections to that and to the next higher nine address are displayed in the lower left hand corner of the display F6 LIST DESTINATIONS CONNECTED TO A SOURCE The F6 function key initiates a listing of all the destinations currently connected to the specified...

Page 59: ...t COM1 Invoking NVMap with no arguments displays the program s syntax summary OPERATION NVMap operates from two screens Screen I provides diagnostic messages allows inquiries into current router crosspoint connections and permits editing of scramble map parameters Screen II selects the active router level and permits editing the scramble map FunctionkeyF10togglesfromScreenItoscreenII FunctionkeyF1...

Page 60: ...NV3128 RS 422A Machine Control Data Routing Switch 3 12 All manuals and user guides at all guides com ...

Page 61: ...n Operation is managed through function keys F2 uploadcurrentinterfaceconfigurationfromtherouter F8 Editconfiguration F4 Downloadeditedconfiguration 1 Uploadingcurrentconfiguration F2 displays information for the levels selected in the router s Control Interface Module s dip switches 2 The F8function key invokes the configuration editor The editor will automaticallysequencethecursorthroughtheavail...

Page 62: ... addressesavailabletoagivenmapbeginatthepointsdefinedinScreen I Initially undefinedmapfieldswithintheconfiguredpartitionrangewill consist of entries Out of range fields are blank Keyboardarrowkeysguidetheeditorthroughthefields Theenterkey accepts the keyed in data Two physical inputs can be a mapped to a single input controller address and two physical outputs can be mapped to a single output cont...

Page 63: ...NV3128 RS 422A Machine Control Data Routing Switch 4 1 CHAPTER4 THEORYOFOPERATION All manuals and user guides at all guides com ...

Page 64: ...NV3128 RS 422A Machine Control Data Routing Switch 4 2 All manuals and user guides at all guides com ...

Page 65: ...cess Aprogrammablegatearraytransformstheaddressmapinto theaddressesandcontrolcommandsthatgoverntheoperationofthecrosspoint modules Themappingactivityiscontinuous withtheUniversalControl CommandInterpretermodule constantlypre loadingthecrosspoint sdouble buffered registers At the take interval a strobe pulse derived from the referenceinputontheUniversalControl CommandInterpretermodule updates thecr...

Page 66: ...NV3128 RS 422A Machine Control Data Routing Switch 4 4 All manuals and user guides at all guides com a l l g u i d e s c o m ...

Page 67: ... connector receives the reference video input and loops it through to a second to facilitate daisy chain connections Alarms and changeover connections arrive via Phoenix terminal blocks Two spare BNCs are provided to accomodate possible future customization D connector sets carry command information from the external router control system the diagnostic interface and on older frames the parallel i...

Page 68: ...of the input to which an output will connect CROSSPOINTS The crosspoint module uses four 64x64 crossbar ICs to cross connect any of 128 outputs with any of the 128 inputs in the crosspoint matrix The chip s address registers are double buffered Control information is stored in a load register then transferred to the active register on arrival of a strobe pulse the signal BNKLDI OUTPUT DATA Outputs...

Page 69: ...e or as a Destination Two 64x64 crosspoint ICs use control information received from the Command Interpreter to gate the submodule transmitters and receivers on or off appropriate to the directions of data flow through the port Thecommandinformationisresistor coupled fromtheSignalBackplane into line buffer driver circuits and their associated resistor networks A similar circuit arrangement receive...

Page 70: ...ntroller protocol the module is to interpret This approach lends itself to custom control interfaces and simplifies the development of new ones The microprocessors process matrix data stored in SRAM into address and control data for use by the crosspoint and I O modules The SRAM IC is divided into two memory banks A and B Only one of these banks is active at any time Line driver receivers link a U...

Page 71: ...TIONING OntheCommandInterpretertwobanksofDIPswitchesandtheirassociated circuitryconfiguretheNV3128intopartitions Additionally softwareversions supporting various controllers may make use of these switches for supplementaryconfigurationcontrol OnthenewerUniversalControlmodule partitioningissetupusingUniDiag andstoredinmemory PARALLEL INTERFACE COMMAND INTERPRETER ONLY Line driver receivers interfac...

Page 72: ...YS USE CAUTION WHEN HANDLING COMPONENTS IN THESE DANGEROUS AREAS TheAC input voltage is rectified by diodes and filtered by capacitors This provides raw DC at a high voltage CAUTION THE SETTING OF J1 SHOULD BE PERFORMED BY QUALIFIED SERVICE PERSONNEL ONLY The power input source and jumper location must be consistent Jumper J1 is set at the factory for either 115 VAC or 230VAC ALWAYS CHECK FOR THE ...

Page 73: ...acitors form two stage filters for the secondary rectifiers They produce low voltage DC outputs at approximately 16 to 18 Volts and 6 to 8 Volts Schottky diodes assure proper load sharing among redundant supplies A pulse width modulation submodule tightly regulates the secondary outputs A primary side auxiliary winding on transformerT1 monitors the flux and feeds back a relative voltage to U1 This...

Page 74: ...NV3128 RS 422A Machine Control Data Routing Switch 4 12 All manuals and user guides at all guides com ...

Page 75: ...NV3128 RS 422A Machine Control Data Routing Switch 5 1 CHAPTER 5 MAINTENANCEAND TROUBLESHOOTING All manuals and user guides at all guides com ...

Page 76: ...NV3128 RS 422A Machine Control Data Routing Switch 5 2 All manuals and user guides at all guides com a l l g u i d e s c o m ...

Page 77: ...ED MAINTENANCE The NV3128 requires no periodic maintenance It is recommended to checkthefrontpanelLEDsoneachofthecardsperiodicallytoensurethat they are operating properly 5 3 RELIABILITY The NV3128 Routing Switch has been designed for reliability Eachactivemodulefeatureson boardvoltageregulationforefficiency and board to board power isolation The regulators provide current limitingandover voltagep...

Page 78: ...acement TheUniveralControl CommandInterpretercontinuouslymonitorsthe health of the power supplies TheNV3128includesPCcompatiblecomputerprogramsthatcontrol map configureandprovidediagnosticutilitiesforthesystem 5 4 1 ISOLATING FAULTS Therepetitivenatureofroutercircuitrygreatlysimplifiesthetaskofisolating problems in the signal paths The following processes will isolate most problems to the board le...

Page 79: ...The upper of the two I O modules supports ports 1 64 The lower module supports ports 65 128 Do not overlookthepossibilityofaproblemintheexternalcablingorequipment 3 Assuming the new route of Step 1 passed signal route any signal to the problematic output with the I O cards swapped Signal passes Then the I O module is defective No Go The crosspoint module is at fault MAPPING AND COMMAND PROBLEMS Mo...

Page 80: ...NV3128 RS 422A Machine Control Data Routing Switch 5 6 All manuals and user guides at all guides com ...

Page 81: ...NV3128 RS 422A Machine Control Data Routing Switch G 1 GLOSSARY All manuals and user guides at all guides com a l l g u i d e s c o m ...

Page 82: ...NV3128 RS 422A Machine Control Data Routing Switch G 2 All manuals and user guides at all guides com ...

Page 83: ...r Delta Sigma Analog to Digital conversion technique Duplex Bi directional ECL Emitter Coupled Logic FCC FederalCommunicationsCommission government agency FET FieldEffectTransistor Fiber Refers to glass core of fiber optic cable Fiber Optic Glass transmission cable used in all modern telecommunicationssystems HDTV Commonly used abbreviation for High Definition Television HDVS Commonly used abbrevi...

Page 84: ... lines PROM ProgrammableReadOnlyMemory PWM AbbreviationforPulseWidthModulation RAM Abbreviation for Random Access Memory S N Commonly used abbreviation for Signal to Noise ratio Simplex Uni directional SMPTE Society of Motion Picture and Television Engineers ST type connector A fiber optic connector Stereo A system of sound reproduction for two precisely phased channels of audio Stereo pair Left a...

Page 85: ...uting Switch G 5 VCXO VoltageControlledCrystalOscillator VDE VerbandDeutscherElectrotechniker Video Picture element of a television signal VTR Commonly used abbreviation for Video Tape Recorder All manuals and user guides at all guides com ...

Page 86: ...NV3128 RS 422A Machine Control Data Routing Switch G 6 All manuals and user guides at all guides com a l l g u i d e s c o m ...

Page 87: ...NV3128 RS 422A Machine Control Data Switch Index 1 INDEX All manuals and user guides at all guides com ...

Page 88: ...NV3128 RS 422A Machine Control Data Switch Index 2 All manuals and user guides at all guides com ...

Page 89: ...trol Module theory 4 8 Control Structure Theory 4 3 Crosspoint Module theory 4 6 Cue audio G 3 Customer Support 5 3 D D1 G 3 D2 G 3 DAC G 3 Delta Sigma techniques G 3 Diagnostic Interface 2 19 Diagnostic Interface Configuring 2 11 Duplex G 3 Dynamic Ports 1 9 E ECL G 3 European Community CE Declaration of Conformance Front 4 F Fault Isolation 5 4 FCC G 3 FCC USA Compliance Statement Front 4 FET G ...

Page 90: ...perJ1 115 230VAC 4 10 L LED G 3 M Maintenance 5 3 Monaural G 3 MOV G 4 MUX G 4 N Nm G 4 NTSC G 4 NVMAP 3 5 NVTAKE 3 5 O Operating Instructions NVMAP 3 11 Operating Instructions NVTAKE 3 6 Oversampling G 4 P PAL G 4 Parallel Interface 2 11 Partitioning 2 6 Power Supply theory 4 10 PROM G 4 PWM G 4 R RAM G 4 Redundant Controller 2 18 Reference Input Configuring 2 13 All manuals and user guides at al...

Page 91: ... 4 Stereo G 4 Stereo pair G 4 STLs G 4 Switcher G 4 Symbols and Their Meanings Front 5 Front 6 Synchronization G 4 System Overview 4 3 T Technical Support Front 4 Troubleshooting 5 4 TTL G 4 U Universal Control 2 6 Utilities PC Computer 3 5 V VCXO G 5 VDE G 5 Video G 5 VTR G 5 W Warranty Statement Front 3 Y Year 2000 Warranty Statement Front 3 All manuals and user guides at all guides com a l l g ...

Page 92: ...NV3128 RS 422A Machine Control Data Switch Index 6 All manuals and user guides at all guides com ...

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