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NV3128 RS-422A Machine-Control Data Routing Switch Manual Part Number: MN3128-00B Instruction Manual NVISION.
Printing History Model NV3128 Manual, Edition 2 Printed in the U.S.A. Copyright NVision, Incorporated January , 2000 July , 1993 All Rights Reserved No part of this manual may be reproduced in any for.
Warranty Statement NVISION, Inc. warrants that the equipment it manufactures shall be free from defects in materials and workmanship for a period of two (2) years, optionally extendable to five (5) years, from the date of shipment from the factory. If warranted equipment fails due to such defects, NVISION, Inc.
T echnical Support If you need support of any kind related to your equipment, contact the local representative who sold you the product, or you may contact NVISION, Inc.
Important Safeguards and Notices The information on the following pages provides important safety guidelines for both operator and service personnel. S pecific warnings and cautions appear throughout the manual where they apply .
Warnings A warning indicates a possible hazard to personnel which may cause injury or death. Observe the following general warnings when using or working on this equipment. - Heed all warnings on the unit and in the operating instructions. - Do not use this equipment in or near water .
Cautions A caution indicates a possible hazard to equipment that could result in equipment damage. Observe the following general cautions when operating or working on this equipment. - When installing this equipment, do not attach the power cord to building surfaces.
North American Power Supply Cords The power cords supplied with this equipment have a molded grounding plug (NEMA 5-15P) at one end and molded grounding receptacle (IEC 320-C13) at the other end. Conductors are CEE color- coded: Light blue (neutral), Brown (line) and Green or Green/Yellow (ground).
T ABLE OF CONTENTS 1. GENERAL INFORMATION ........................................................................................ 1-1 1.1 General .................................................................................................... 1-3 1.
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NV3128 RS-422A Machine-Control Data Switch 1 -1 CHAPTER 1: GENERAL INFORMA TION.
NV3128 RS-422A Machine-Control Data Switch 1 -2.
NV3128 RS-422A Machine-Control Data Switch 1 -3 CHAPTER 1 - GENERAL INFORMA TION 1.1 GENERAL The NV3128 is a serial digital switch for routing RS-422A machine-control data in a video or audio broadcast or production facility . T able 1.1 at the end of this section lists its performance specifications.
NV3128 RS-422A Machine-Control Data Switch 1 -4 For very high reliability applications, a redundant controller can also be added to the frame, with circuitry provided for automatic changeover . W ith its duplex complexity , RS-422A has long been a troublesome method of plant signal routing.
NV3128 RS-422A Machine-Control Data Switch 1 -5.
NV3128 RS-422A Machine-Control Data Switch 1 -6 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 .
NV3128 RS-422A Machine-Control Data Switch 1 -7 T o 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.
NV3128 RS-422A Machine-Control Data Switch 1 -8 V ideo equipment offers a suf ficient 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.
NV3128 RS-422A Machine-Control Data Switch 1 -9 DYNAMIC PORTS The power of the NV3128 as a data router begins with its singular ability to dynamically configure each of its 128 I/O ports to one of three states: controlling, controlled or high impedance.
NV3128 RS-422A Machine-Control Data Switch 1-10 CROSSPOINT ARCHITECTURE Figure 1.5 is a simplified representation of the interface between the I/O connectors, the dynamic ports, and the crosspoint matrix. The crosspoint matrix itself consists of four LSI 64x64 crosspoint chips connected in a unidirectional 128x128 m by n architecture.
NV3128 RS-422A Machine-Control Data Switch 1-11.
NV3128 RS-422A Machine-Control Data Switch 1-12 MUL TIDROP COMMAND CHAINS Gating off the response transmitter in a controlled port is an effective and transparent technique to resolve bus contention in a multi-drop command chain.
NV3128 RS-422A Machine-Control Data Switch 1-13 1.5 ANCILLARY EQUIPMENT The NV3128 operates in a sophisticated audio/video environment, typically supporting a mix of modern digital equipment and older analog gear .
NV3128 RS-422A Machine-Control Data Switch 1-14 T ABLE 1-1 NV3128 SPECIFICA TIONS INPUTS/OUTPUTS Number NV3128-128 12 8 NV3128-64 6 4 Protocol RS-422A, Balanced ,9-PinD Connector, Dynamically configur.
NV3128 RS-422A Machine-Control Routing Switch 2 -1 CHAPTER 2: INST ALLA TION.
NV3128 RS-422A Machine-Control Routing Switch 2 -2.
NV3128 RS-422A Machine-Control Routing Switch 2 -3 CHAPTER TWO - INST ALLA TION CAUTION: THE FOLLOWING INSTALLATION PROCEDURES ARE INTENDED FOR QUALIFIED SERVICE PERSONNEL ONLY. TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT PERFORM ANY SERVICING OTHER THAN THAT CONTAINED IN THE OPER- ATING INSTRUCTIONS UNLESS YOU ARE QUALIFIED TO DO SO.
NV3128 RS-422A Machine-Control Routing Switch 2 -4 8. Connect the AC line cord at the rear of the frame and to the input AC, which powers up the NV3128. Ensure the system powers up correctly . a. LEDs on the Power Supply front panel should glow . b. Measure the voltages at the DC tespoints on the Power Supply .
NV3128 RS-422A Machine-Control Routing Switch 2 -5 FIGURE 2.1 FRAME INST ALLA TION.
NV3128 RS-422A Machine-Control Routing Switch 2 -6 2.2 CONFIGURA TION 2.2.1 THE UNIVERSAL CONTROL OR COMMAND INTERPRETER The Universal Control Card (EM0134-XX) constitutes the current control module for the NV3128 Router . It includes a T est/Normal jumper near the front of the card that should always be set to Normal mode.
NV3128 RS-422A Machine-Control Routing Switch 2 -7 PARTITION DIP SWITCHES (OBSOLETE) 1. T wo banks of dip switches on the Control Interface Module configure the partition information for the NV3128. Bank 1 defines the physical partition, Bank 2 enables the ghost partition and defines its controller level.
NV3128 RS-422A Machine-Control Routing Switch 2 -8 SETTINGS: ENABLE (s8): ON: Partition defined in switchbank is enabled. OFF: Partition is disabled. RE-INITIALIZE BIT/MUL TIDROP ENABLE (s7): OFF: On power-up following a shutdown of less than twenty minutes, the system restores the crosspoint address map stored in battery- powered RAM.
NV3128 RS-422A Machine-Control Routing Switch 2 -9 INPUT LENGTH (s8-s5): Bit 8 (MSB) through bit 5 (LSB) of the B switch section create a four- bit binary , modulo 32 number that matches the input dimension of the switch. The length of the partition is the number in the switch times 32.
NV3128 RS-422A Machine-Control Routing Switch 2-10 2.2.4 CONFIGURING THE SERIAL INTERF ACE (OBSOLETE) 2.2.4.1 JUMPER SETTINGS (OBSOLETE) The serial data interface between the control system and the NV3128 can be either RS-422A or RS-232. For the newer Universal Control module, the serial interface ports are set up using UniDiag.
NV3128 RS-422A Machine-Control Routing Switch 2-11 2.2.5 P ARALLEL INTERF ACE (OBSOLETE) Newer NV3128 frames do not include a parallel interface. The older NV3128 frames with the Command Interpreter card included a parallel connector which could be used with the Pesa parallel interface.
NV3128 RS-422A Machine-Control Routing Switch 2-12 Additionally , two jumpers float or ground pins 5 and 9 of interface connector J40 for further configuration flexibility .
NV3128 RS-422A Machine-Control Routing Switch 2-13 2.2.7 CONFIGURING THE REFERENCE INPUT The NV3128 can derive its timing from a V ideo Reference input, or it can free run. The reference input is normally a video black burst signal, but optionally can be an AES/EBU digital audio bitstream.
NV3128 RS-422A Machine-Control Routing Switch 2-14 2.3 CABLING THE NV3128 Figures 2-2 and 2-3 at the end of this section show the rear panel connections on the NV3128. Notice that there are old and new frames corresponding to the old Command Interpreter and the new Universal Control Card.
NV3128 RS-422A Machine-Control Routing Switch 2-15 RS-422 Cable Pin-Out P I N Controlling Device Controlled Device 1 Frame Ground Frame Ground 2 Receive A T ransmit A 3 T ransmit B Receive B 4 T ransm.
NV3128 RS-422A Machine-Control Routing Switch 2-16 RS232 (OBSOLETE): The NV3128 Control/Command Interpreter interface is always a DCE device when operating in RS-422A mode. As shown above, the system can be configured as either DTE or DCE equipment in RS-232 mode.
NV3128 RS-422A Machine-Control Routing Switch 2-17 OPTION II: If the controlling RS232 device communicates over a 25- pin serial port: 1. Configure the Control Interface Module as a DTE 2. Create (or buy) a 9-pin (male) to 25-pin (female) cable using the 9-pin to 25-pin RS-232 wire list below .
NV3128 RS-422A Machine-Control Routing Switch 2-18 2.4 ADDING A REDUNDANT CONTROLLER A second Universal Control/Command Interpreter can be specially ordered and installed for increased system reliability . If you have the Universal Control card, you must also have the Universal Control frame in order to install a redundant control card.
NV3128 RS-422A Machine-Control Routing Switch 2-19 2.6 PC DIAGNOSTIC INTERF ACE (UNIDIAG/NVUTILS) NV ision furnishes a configuration and diagnostic computer utility with the routing switch. For newer systems having the Universal Control Card, the program is called UniDiag.
NV3128 RS-422A Machine-Control Routing Switch 2-20 FIG 2-2. REAR CONNECTIONS (NEW FRAME) VIDEO REF 1 REF 2 ALARMS ETHER NET NODE BUS RS-232 DIAG CTL1 CTL2 RS-232 MEZ DIAG RS-422 PRIMARY CtL VIDEO CTL1.
NV3128 RS-422A Machine-Control Routing Switch 2-21 FIG 2-2. REAR CONNECTIONS (OLD FRAME) FIG 2-3. REAR CONNECTIONS (OLD FRAME).
NV3128 RS-422A Machine-Control Routing Switch 2-22 2.4 PC-BASED SOFTW ARE INST ALLA TION (OBSOLETE) IMPOR T ANT NOTE: The remainder of this section applies only to older systems using the Command Interpreter module. For newer systems using the Universal Control Card, skip the remainder of this section and go to the UniDiag manual.
NV3128 RS-422A Machine-Control Routing Switch 2-23 SOFTWARE INSTALLATION FIXED DISK A. Create an NVUtil subdirectory for the program and its map data. B. Change Directory to the NVUtil subdirectory . C. Copy the program files from the supplied diskette.
NV3128 RS-422A Machine-Control Routing Switch 2-24 OPERATION FROM A FLOPPY DISK A. Copy the program files supplied to a blank floppy . B. Invoke either program from the floppy . Edited map, config and salvo files will be saved to the floppy in the course of the program session.
NV3128 RS-422A Machine Control Data Routing Switch 3 -1 CHAPTER 3: OPERA TION.
NV3128 RS-422A Machine Control Data Routing Switch 3 -2.
NV3128 RS-422A Machine Control Data Routing Switch 3 -3 CHAPTER 3 - OPERA TIONS The NV3128 requires no operator intervention. The router may be controlled completely via the selected control system.
NV3128 RS-422A Machine Control Data Routing Switch 3 -4 On older systems, DIP switches on the Command Interpreter establish the logical ID for each of the two levels and also configure the partition parameters. On newer systems with the Universal Control module, levels and partitions are set up using UniDiag.
NV3128 RS-422A Machine Control Data Routing Switch 3 -5 3.2 COMPUTER UTILITIES (OBSOLETE) The following information applies only to older systems with the Command Interpreter module. Newer systems with the Universal Control module use UniDiag instead of the NVUtils described below .
NV3128 RS-422A Machine Control Data Routing Switch 3 -6 3.2.1 OPERA TING INSTRUCTIONS - NVT AKE (OBSOLETE) INVOCATION: NVTAKE [H | U | V | E | R] [1|2] [9600|38400] Where argument 1 is the router cont.
NV3128 RS-422A Machine Control Data Routing Switch 3 -7 F1 SENDING A SINGLE TAKE The F1 function key enters the single-take mode of operation. The cursor moves to the source address prompt in the upper left hand corner of the screen. When source and destination addresses have been entered, the take is sent to the router s Control Interface.
NV3128 RS-422A Machine Control Data Routing Switch 3 -8 F9 - BUILD A SALVO TABLE The F9 function key initiates building or editing a take salvo. The cursor position prompts source and destination address fields.
NV3128 RS-422A Machine Control Data Routing Switch 3 -9 F10 - LOAD A SALVO FROM DISK The F10 function key loads a file from the current directory from which NV T AKER was launched. The program asks for the name of the file defining the salvo. Enter the name with no extension.
NV3128 RS-422A Machine Control Data Routing Switch 3-10 QUERYING SYSTEM CONNECTIONS (VISTEK PROTOCOL ONLY) F4 - QUERY A SINGLE CROSSPOINT The F4 function key enters the single-crosspoint query mode. The cursor is positioned on the destination address field.
NV3128 RS-422A Machine Control Data Routing Switch 3-11 3.2.2 OPERA TING INSTRUCTIONS - NVMAP (OBSOLETE) INVOCATION: NVMAP [ H | U | V | E | R ] [1|2] Where argument 1 is the router control protocol f.
NV3128 RS-422A Machine Control Data Routing Switch 3-12.
NV3128 RS-422A Machine Control Data Routing Switch 3-13 Screen I Query crosspoint connections: 1. Enter the number of the lowest output port you want to query 2 . The screen will display the connections made to the first 16 output ports starting with the address entered.
NV3128 RS-422A Machine Control Data Routing Switch 3-14 Screen II Editing the scramble map: 1. Function Key F7 allows setting the router level on which the scramble map is to operate. ESC exits this edit mode. 2. Function key F 2 loads the scramble map currently active in the router controller RAM.
NV3128 RS-422A Machine-Control Data Routing Switch 4 -1 CHAPTER 4: THEOR Y OF OPERA TION.
NV3128 RS-422A Machine-Control Data Routing Switch 4 -2.
NV3128 RS-422A Machine-Control Data Routing Switch 4 -3 CHAPTER FOUR - THEOR Y OF OPERA TION 4.1 SYSTEM Fig 1.5 is repeated here to demonstrate the bidirectional flow of data through the routing switch. The illustration shows a controlling machine sending and receiving data through a controlled port on the router .
NV3128 RS-422A Machine-Control Data Routing Switch 4 -4.
NV3128 RS-422A Machine-Control Data Routing Switch 4 -5 4.2 CIRCUIT OPERA TION The following discussion provides an overview of circuit operation for each of the circuit boards in the NV3128 Router frame.
NV3128 RS-422A Machine-Control Data Routing Switch 4 -6 4.2.3 CROSSPOINT MODULE: ASSY EM0041-XX INPUT DATA Input signal data flows into the crosspoint module from the signal backplane. The data is resistor coupled into buffer/driver integrated circuits, then passed onto the data bus for application to the crosspoint ICs.
NV3128 RS-422A Machine-Control Data Routing Switch 4 -7 4.2.4 I/O ASSEMBL Y : EM0040-XX The I/O module is a bidirectional interface between the router's crosspoint matrix and the external machines. T wo modules, each supporting 64 ports, make up the full complement of I/O circuits.
NV3128 RS-422A Machine-Control Data Routing Switch 4 -8 4.2.5 UNIVERSAL CONTROL/COMMAND INTERPRETER MODULE ASSY : EM0127-XX, EM0134-XX, EM0035-XX The following discussion refers to both the Universal Control and Command Interpreter modules. Although these modules use dif ferent designs, they are functionally very similar .
NV3128 RS-422A Machine-Control Data Routing Switch 4 -9 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 information in the crosspoint s double-buffered registers.
NV3128 RS-422A Machine-Control Data Routing Switch 4-10 4.2.5 POWER SUPPL Y ASSY : PS2001-XX The NV3128 Frame and its Power Supply are UL listed. The Power Supply Module PS2001-01 powers the NV3128 from the A C line at a nominal voltage of 1 15 V AC - 60 Hz or 230 V AC - 50Hz.
NV3128 RS-422A Machine-Control Data Routing Switch 4-11 Metal oxide varistors DV1 and DV2 clamp voltage spikes on the A C input lines to safe levels. Further , the PS2001 automatically bleeds all input capacitors when the unit is removed from the frame.
NV3128 RS-422A Machine-Control Data Routing Switch 4-12.
NV3128 RS-422A Machine Control Data Routing Switch 5 -1 CHAPTER 5: MAINTENANCE AND TROUBLESHOOTING.
NV3128 RS-422A Machine Control Data Routing Switch 5 -2.
NV3128 RS-422A Machine Control Data Routing Switch 5 -3 CHAPTER 5 - MAINTENANCE AND TROUBLESHOOTING 5.1 CUSTOMER SUPPORT Nvision customer support is available Monday through Friday during normal business hours, Pacific Standard T ime (PST). The customer support telephone number is (530) 265-1000.
NV3128 RS-422A Machine Control Data Routing Switch 5 -4 5.4 TROUBLESHOOTING Certain features of the NV3128 facilitate troubleshooting the router . · Power supplies and all active modules can be removed and re-inserted live without damage.
NV3128 RS-422A Machine Control Data Routing Switch 5 -5 SIGNAL PATH The quickest way to isolate problems in a single connection is by module substitution. If sufficient spares are not available to carry out this strategy , the next best recourse is path substitution: 1.
NV3128 RS-422A Machine Control Data Routing Switch 5 -6.
NV3128 RS-422A Machine-Control Data Routing Switch G- 1 GLOSSARY.
NV3128 RS-422A Machine-Control Data Routing Switch G- 2.
NV3128 RS-422A Machine-Control Data Routing Switch G- 3 GLOSSARY AES/EBU ......................................... Audio engineering Society/European Broadcast Union ATR .................................................. Commonly used abbreviation for Audio Tape Recorder Audio .
NV3128 RS-422A Machine-Control Data Routing Switch G- 4 MOV ................................................. Abbreviation for Metal Oxide Varistors MU X ................................................. Commonly used abbreviation for Multiplexer Board N m .
NV3128 RS-422A Machine-Control Data Routing Switch G- 5 VCXO .. ............................................. Voltage Controlled Crystal Oscillator V D E .................................................. Verband Deutscher Electrotechniker Video .....
NV3128 RS-422A Machine-Control Data Routing Switch G- 6.
NV3128 RS-422A Machine-Control Data Switch Index-1 INDEX.
NV3128 RS-422A Machine-Control Data Switch Index-2.
NV3128 RS-422A Machine-Control Data Switch Index-3 Index A Ancillary Equipment 1-13 Architecture, System 1-4 A T R G-3 Audio G-3 B Backplane (theory) 4-5 Bi-phase G-3 C Cabling 2-14 Circuit Theory 4-5.
NV3128 RS-422A Machine-Control Data Switch Index-4 H HDTV G-3 HDVS G- 3 Hybrid G- 3 I I/O G-3 I/O Assembly (theory) 4-7 I/O Interface Modules 4-5 IC G-3 Installation, Hardware 2-3 J Jumper and Switch .
NV3128 RS-422A Machine-Control Data Switch Index-5 S S/N G-4 Safeguards and Notices Front-5 Serial Interface, Configuring 2-10 Simplex G-4 SMPTE G-4 Software Installation 2-22 Specifications 1-14 ST t.
NV3128 RS-422A Machine-Control Data Switch Index-6.
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