NV3512 Instruction Manual AES/EBU Audio and Time Code Routing Switchers

Transcription

1 NV Instruction Manual AES/EBU Audio and Time Code Routing Switchers CONTENTS:. GENERAL DESCRIPTION. INSTALLATION. OPERATION. MAINTENANCE AND TROUBLESHOOTING. SYSTEM-LEVEL DRAWINGS AND SCHEMATICS. BOARD-LEVEL DATA PACKAGES. APPENDICES AND CHANGE INFORMATION Manual P/N MN-0A May, NV Routing Switchers

2 Printing History NV AES/EBU Audio and Time Code Routing Switcher Instruction Manual Manual Part No. MN-0 September, Copyright NVISION, Inc. March, All Rights Reserved No part of this manual may be reproduced in any form by Photostat, microfilm, xerography or any other means, or incorporated into any information retrieval system, electronic or mechanical, without the written permission of NVISION, Inc. Notice The information contained in this Operations Manual is subject to change without notice or obligation. NV Routing Switchers

3 Warranty Statement NVISION, Inc. warrants that the equipment it manufactures shall be free from defects in materials and workmanship for a period of two () years, optionally extendable to five () years, from the date of shipment from the factory. If warranted equipment fails due to such defects, NVISION, Inc. shall, at its option, repair or provide a replacement for the defective part or product. Equipment that fails after the warranty period, or that which has been operated outside its ratings or subjected to abuse or modification, shall be repaired for time and material charges at the Buyer s expense. All out-of-warranty repairs are warranted for a period of ninety (0) days from the date of shipment from the factory. NVISION, Inc. makes no other warranties, expressed or implied, of merchantability, fitness for a particular purpose or otherwise. With respect to the products sold by it, NVISION s liability for any cause, including breach of contract, breach of warranty or negligence, is limited to repair or replacement by NVISION, at its sole discretion. This remedy is exclusive. In no event shall NVISION be liable for any incidental or consequential damages, including loss of profits. Effective January,. Company Address NVISION, Inc. Shipping Address: P.O. Box Crown Point Court Nevada City, CA Grass Valley, CA USA USA Tel Fax NV Routing Switchers

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5 Important Safeguards and Notices The information on the following pages provides important safety guidelines for both operator and service personnel. Specific warnings and cautions appear throughout the manual where they apply. Please read and follow this important safety information, especially those instructions related to the risk of electric shock or injury to persons. WARNING! Any instructions in this manual that require opening the equipment cover or enclosure are for use by qualified service personnel only. To reduce the risk of electric shock, do not perform any servicing other than that contained in the operating instructions unless you are qualified to do so. Symbols and Their Meaning The lightning flash with arrowhead symbol within an equilateral triangle alerts the user to the presence of dangerous voltages within the product's enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons.! The exclamation point within an equilateral triangle alerts the user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the equipment. This symbol represents a protective grounding terminal. Such a terminal must be connected to earth ground prior to making any other connections to the equipment. The fuse symbol indicates that the fuse referenced in the text must be replaced with one having the ratings indicated. NV Routing Switchers

6 Symbols and Their Meaning (Continued) UR The presence of this symbol in or on NVISION equipment means that it has been designed, tested and certified as complying with applicable Underwriter's Laboratory (USA) regulations and recommendations. The presence of this symbol in or on NVISION equipment means that it has been designed, tested and certified as essentially complying with all applicable European Union (CE) regulations and recommendations. Warnings Heed all warnings on the unit and in the operating instructions. Do not use this equipment in or near water. This equipment is grounded through the grounding conductor of the power cord. To avoid electrical shock, plug the power cord into a properly wired receptacle before connecting the equipment inputs or outputs. Route power cords and other cables so they are not likely to be damaged. Disconnect power before cleaning the equipment. Do not use liquid or aerosol cleaners; use only a damp cloth. Dangerous voltages may exist at several points in this equipment. To avoid personal injury, do not touch exposed connections and components while power is on. Do not wear rings or wristwatches when troubleshooting high current circuits such as the power supplies. 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 number, voltage and current ratings as referenced in the appropriate locations in the service instructions or on the equipment. Always refer fuse replacements to qualified service personnel. To avoid explosion, do not operate this equipment in an explosive atmosphere. NV Routing Switchers

7 Warnings (Continued) Cautions Have qualified service personnel perform safety checks after any completed service. If equipped with redundant power supplies, the equipment has two power cords. To reduce the risk of electric shock, disconnect both power supply cords before servicing the unit. When installing this equipment, do not attach the power cord to building surfaces. To prevent damage to equipment when replacing fuses, locate and correct the problem that caused the fuse to blow before re-applying power. Verify that all power supply lights are off before removing the power supply or servicing the equipment. 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 instructions in the equipment manual for proper input voltage range selection. To maximize protection against unwanted power loss, ensure that the power cords for redundant power supplies are plugged into separate branch circuits. NV Routing Switchers

8 North American Power Supply Cords The power cords supplied with this equipment have a molded grounding plug (NEMA -P) at one end and molded grounding receptacle (IEC 0-C) at the other end. Conductors are CEE color-coded: Light blue (neutral), Brown (line) and Green or Green/Yellow (ground). Operation of this equipment at voltages exceeding 0 VAC will require power supply cords which comply with NEMA configurations. Brown Blue Line Neutral Green or Green with Yellow Stripe Ground (Earth) International Power Supply Cords The power cords supplied with this equipment have a molded grounding receptacle (IEC 0-C) at one end and stripped conductors (0/ mm) at the other end. Conductors are CEE color-coded: Light blue (neutral), Brown (line) and Green/Yellow (ground). Other IEC 0-C type power supply cords can be used if they comply with the safety regulations of the country in which they are installed. Brown Blue Green with Yellow Stripe Line Neutral Ground (Earth) NV Routing Switchers

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10 Table. - NV Routing Switcher Performance Specifications Models Available Model Number and Type: NVA: Asynchronous AES/EBU Digital Audio Router. NVSA: Synchronous AES/EBU Digital Audio Router. NVTC: AES/EBU Longitudinal Time Code Router. Signal Inputs and Outputs (All Models) Number of Input Ports: Interface Standards: Input Impedance: Output Impedance: Data Rates: -0 (Expandable in -port increments). NVA/NVSA: AES/EBU 0 ohm, twisted-pair with pluggable screw-type terminal blocks or (optional) SMPTE/AES (AES- ID) ohm, BNC connectors. NVTC: Per SMPTE M- specifications for longitudinal time code. NVA/NVSA: 0 Ohms, ohms or High Impedance (Jumper selectable) NVTC: 00 Ohms or High Impedance. NVA/NVSA: 0 Ohms or Ohms. NVTC: 0 Ohms. NVA: khz to khz audio sample rate. NVSA:. or.0 khz audio sample rate. NVTC: Jog to 00x (Fast Forward). Control System Interface (Standard: EM0 Controller w/ EM0 Backplane) Serial Control Port: Interface: Control Sense: One RS- port. SMPTE 0M/RS-, -pin female subminiature D-type connector. Controlled device (DCE). Router Control Protocols Supported: Philips BTS, NVISION, PESA, Pro-Bel, Utah Scientific, Vistek (Please inquire about other systems.) Control System Interface (GSC: EM Controller w/ EM Backplane) Serial Control Port: One looping GSC node control port (BNC) Interface: GSC (SMS-000 host control - Tektronix / Grass Valley ) Control Sense: Router Control Protocols Supported: Node Tektronix / Grass Valley SMS-000 proprietary interface. * An AES/EBU or AES-ID Reference is required for NVSA Synchronous Digital Audio Routers 0 NV Routing Switchers

11 Table. - NV Performance Specifications (Continued) Control System Interface (Universal: EM0 Controller w/ EM Backplane) Control Ports: Redundant RS- serial control ports (Main/Aux) One GSC (SMS-000) node control port, looping One Ethernet Interface: RS-: SMPTE 0M/RS-, -pin female subminiature D- type connector. GSC: GSC (SMS-000 host control - Tektronix / Grass Valley) Ethernet: IEEE 0., 0 Mbps Control Sense: Router Protocols Supported: RS-: Controlled device (DCE). GSC: Node Ethernet: Node RS-: Philips BTS, NVISION, PESA, Pro-Bel, Utah Scientific, Vistek (Please inquire about other systems.) GSC: Tektronix / Grass Valley SMS-000 proprietary interface. Reference Inputs (Standard Model: EM0 Controller w/ EM0 backplane) Number: Interface: Input Impedance: Reference Selection/Priority: - Video (BNC); - AES/EBU twisted-pair Video input: Looping BNC connectors, AES/EBU: Pluggable terminal strip 0 Ohms or High Impedance (AES/EBU inputs), Ohms or High Impedance (Video and AES-ID inputs). Automatic: Video -> AES/EBU -> AES-ID -> Internal (Free Run). Reference Inputs (GSC and Universal Controller Models) Number: Reference Interface: Input Impedance: Reference Selection/Priority: Diagnostic Port (All Models) Number of Ports/Interface Standard: Signaling Method: Baud Rate: Port Connector: Electrical AC Line Supply Voltage: AC Line Frequency: Power Consumption (Varies with Version, No. of Modules and Options): - Video (BNC); - AES/EBU twisted-pair; - AES-ID (BNC) Video inputs: Looping BNC connectors; AES/EBU: Pluggable terminal strips; AES-ID inputs: BNC 0 Ohms or High Impedance (AES/EBU inputs). Ohms or High Impedance (Video and AES-ID inputs). Automatic: Video -> AES/EBU -> AES-ID -> Internal (Free Run). One, RS- (Control sense: DCE). Asynchronous start/stop serial data, data bits, stop bit, no parity. 00 Baud. Standard -pin female subminiature D-type connector. 0- VAC or 0-0 VAC, user selectable. - Hz. x, 0 Watts; x, 0 Watts. Safety Certifications: Underwriter's Laboratory approved, Control No. K0. *An AES/EBU or AES-ID reference is required for NVSA Synchronous Audio Routers

12 Table. - NV Performance Specifications (Continued) Mechanical: Output Frame: Output Frame Capacity: Output Frame Dimensions: Output Frame Power Supply Cells: Output Frame Power Supplies: Input Frame: Input Frame Capacity: Epoxy-coated aluminum construction, RU. Sixteen output modules, outputs per module (- outputs). " H x -/" D x " W ( mm H x mm D x mm W). Two. Model PS00 or PS00 (One required, an optional second supply may be installed for redundant operation). Epoxy-coated aluminum construction, RU. Sixteen input modules, inputs per module (- inputs). Sixteen crosspoint modules (x each, x total). Input Frame Dimensions: -/" H x -/ " D x " W ( mm W x mm D x mm W) Roll-Over Frame: Roll-Over Frame Capacity: Epoxy-coated aluminum construction, RU. - Cable Driver/Receiver Roll-Over (EM0) modules Roll-Over Frame Dimensions: H x. D x W ( mm H x mm D x mm W) Roll-Over Frame Power Supply Cells: Roll-Over Frame Power Supplies: Roll-Under Frame: Roll-Under Frame Capacity: Roll-Under Frame Dimensions: Roll-Under Frame Power Supply Cells: Roll-Under Frame Power Supplies: Weight: Typical System Weight (Depends on Version, No. of Modules and Options Ordered): Two PS00 Epoxy-coated aluminum construction, RU. - Cable Driver/Receiver Roll-Under (EM0) modules -/ H x. D x W (00 mm H x mm D x mm W) Two PS00 x with two power supplies: lb. ( kg.); x: lb. (0. kg.); x: lb. (0. kg.) NV Routing Switchers

13 .0 General Description. Introduction NV Models Three variations of the NV are available in a wide range of matrix sizes: Model NVA NVSA NVTC Signal Type Asynchronous AES/EBU Digital Audio Router Synchronous AES/EBU Digital Audio Router Asynchronous Time Code Router Depending on the application and the date of manufacture, one of three types of NV control modules was supplied with your NVISION system. The controller types are: Type Controller Control Interface Standard EM0 RS- control interface GSC* EM Tektronix/Grass Valley SMS-000 I/F Universal EM0 RS- or GSC* Each model is described in more detail in this section. A data package for the appropriate control module furnished with your system is included in Section of this manual. Manual Organization This equipment manual is organized into two parts. The first or system-level portion comprises the title and introductory pages at the front of the manual, along with five sections covering information common to all models of the NV. The second part includes detailed information on each of the major circuit modules that make up your system. Sections - cover the equipment from a system-level viewpoint. Section (this section) describes the NV product line in a general way. Sections through describe how to install and set up a typical system and how to maintain it once the installation is complete. System-level functional block diagrams, mechanical drawings and frame interconnection drawings are located in Section. * The GSC (Global Serial Channel) interface is a proprietary interface used by Tektronix/Grass Valley Series 000 controllers. NV Routing Switchers

14 Table. - NV Instruction Manual Table of Contents Section Page(s) Title Pages - Warranty Important Safeguards and Notices - Table - NV Performance Specifications 0-.0 General Description -.0 Installation -.0 Operation -.0 Maintenance and Troubleshooting -.0 System-Level Drawings and Schematics.0 Board-Level Data Packages.0 Appendices and Change Information. NV Models The latter part of the manual comprises a set of individual circuit module sections (Data Packages). These are located in Section. Data packages include a general description of each included module as well as configuration information, a functional description of the circuitry and complete schematic diagrams. Board-level setup and alignment procedures are also included where they apply. Data packages for modules not used in your system may not be included. Section includes additional information which supplements or updates this manual. For example, documentation for NVISION's router configuration and diagnostic application for Windows (RTRDIAG or UniDiag ) may be included in Section. This manual's Table of Contents is listed on the cover page. An expanded Table of Contents can be found in Table. at the top of this page. General Information The NVISION Model NV is an expandable routing switcher capable of routing AES/EBU digital audio or ANSI/SMPTE/EBU linear time code data. Table. at the front of this section lists the performance specifications for the various versions. Requiring only inches of rack space for a x I/O-port array, the NV achieves a 0: space reduction over traditional analog routers. Its unique, non-blocking matrix architecture and patented hardware design allow incremental expansion to 0 input ports and 0 output ports by adding additional frames, circuit modules and interconnecting cables. Modular -input and -output building blocks NV Routing Switchers

15 allow a wide variety of matrix sizes. Modular construction simplifies maintenance and reduces unnecessary downtime. These features combine with high performance circuitry and a flexible control scheme to make the family of NV routers ideal choices for routing systems of any size. A Standard matrix control module (EM0) interfaces the router with a number of widely-available router control systems. The NV can stand alone or function as an alien matrix in another router system. As an option, an NV can be ordered with a Tektronix/Grass Valley SMS-000 GSC node control interface (EM). With this option, the NV performs seamlessly as an integral part of a larger SMS-000 installation. A third alternative is the EM0 Universal control module. This module can be configured for RS-, GSC or other interface, depending on which interface adapter mezzanine card is installed. Control system redundancy is an optional feature with the SMS-000 interfaces. The modules used in all three versions of the NV are identified in Tables.,. and. on the next three pages. Router control systems typically communicate over serial RS- lines or through proprietary buses. Both the matrix controller module used in standard NVISION routers (EM0) and the later-model Universal controller (EM0) support RS-, the most common and widely applied interface. Multidrop RS- installations can be set up for applications in networked control environments. Using either the GSC controller or the Universal controller fitted with a GSC interface mezzanine card, the NV can communicate with an SMS-000 host control system via the SMS-000 s proprietary Global Serial Channel interface. This is a coaxial cable network similar to a thin Ethernet connection. The NV can optionally monitor up to six outputs simultaneously. Synchronous audio versions include output monitoring on the Clock Generator/Monitor module. NVISION furnishes PC-compatible computer utilities with each NV system. A comprehensive Windows-based utility, RTRDIAG or UniDiag, depending on the controller, is also included. Extensive diagnostic and configuration capabilities are included in the software packages. Operating instructions are included in the appendix to this NV Routing Switchers

16 Table. - NV Circuit Modules (Standard Models) NVA Asynchronous AES/EBU Digital Audio Router Input Frame Active Input Module Crosspoint Module Active Output Module Passive Output Module Matrix Controller Module Matrix Controller Passive Backplane Output Monitor * Output Monitor Passive Backplane * FR000 (Twisted-pair), FR00 (BNC) EM0 EM0 EM NVSA Synchronous AES/EBU Digital Audio Router Input Frame Active Input Module Crosspoint Module Active Output Module Passive Output Module Matrix Controller Module Matrix Controller Passive Backplane Output Monitor * Output Monitor Passive Backplane * EM0 (Twisted-pair), EM0 (BNC) EM0 or EM0 EM0 or EM FR000 (Twisted-pair), FR00 (BNC) EM EM0 EM EM0 (Twisted-pair), EM0 (BNC) EM0 or EM0 EM0 or EM NVTC Time Code Router (SMPTE/EBU Linear Time Code) Input Frame Active Input Module Crosspoint Module Active Output Module Passive Output Module Matrix Controller Module Matrix Controller Passive Backplane Output Monitor * Output Monitor Passive Backplane * FR000 (Twisted-pair), FR00 (BNC) EM0 EM0 EM00 EM0 (Twisted-pair), EM0 (BNC) EM0 or EM0 EM0 or EM * Six channels of output monitoring are available. Module and backplane part numbers depend on the application and the control modules used in your system. Please contact NVISION for more information. NV Routing Switchers

17 Table. - NV Circuit Modules (GSC / SMS-000 Version) NVA Asynchronous AES/EBU Digital Audio Router Input Frame FR000 (Twisted-pair), FR00 (BNC) Active Input Module EM0 Crosspoint Module EM0 Crosspoint Pull-Down Module EM0 Active Output Module EM Passive Output Module EM0 (Twisted-pair), EM0 (BNC) GSC Node Controller Module EM Clock Generator / Output Monitor Module EM0 (Optional) Node Controller/Clock Generator Backplane EM NVSA Synchronous AES/EBU Digital Audio Router Input Frame FR000 (Twisted-pair), FR00 (BNC) Active Input Module EM Crosspoint Module EM0 Active Output Module EM Passive Output Module EM0 (Twisted-pair), EM0 (BNC) GSC Node Controller Module EM Clock Generator / Output Monitor Module EM0 Node Controller/Clock Generator Backplane EM NVTC Time Code Router (SMPTE/EBU Linear Time Code) Input Frame FR000 (Twisted-pair), FR00 (BNC) Active Input Module EM0 Crosspoint Module EM0 Crosspoint Pull-Down Module EM0 Active Output Module EM Passive Output Module EM0 (Twisted-pair) GSC Node Controller Module EM Clock Generator / Time Code Output Monitor Module EM (Optional) Node Controller/Clock Generator Backplane EM NV Routing Switchers

18 Table. - NV Circuit Modules (Universal Controller Version) NVA Asynchronous AES/EBU Digital Audio Router Input Frame FR000 (Twisted-pair), FR00 (BNC) Active Input Module EM0 Crosspoint Module EM0 Crosspoint Pull-Down Module EM0 Active Output Module EM Passive Output Module EM0 (Twisted-pair), EM0 (BNC) Universal Controller Module EM0 Clock Generator / Output Monitor Module EM0 (Optional) Universal Controller/Clock Generator Backplane EM NVSA Synchronous AES/EBU Digital Audio Router Input Frame FR000 (Twisted-pair), FR00 (BNC) Active Input Module EM Crosspoint Module EM0 Active Output Module EM Passive Output Module EM0 (Twisted-pair), EM0 (BNC) Universal Controller Module EM0 Clock Generator / Output Monitor Module EM0 Universal Controller/Clock Generator Backplane EM NVTC Time Code Router (SMPTE/EBU Linear Time Code) Input Frame FR000 (Twisted-pair), FR00 (BNC) Active Input Module EM0 Crosspoint Module EM0 Crosspoint Pull-Down Module EM0 Active Output Module EM Passive Output Module EM0 (Twisted-pair) Universal Controller Module EM0 Clock Generator / Time Code Output Monitor Module EM (Optional) Universal Controller/Clock Generator Backplane EM NV Routing Switchers

19 manual. NVA Asynchronous AES/EBU Router The NVA is an asynchronous AES/EBU router. This version of the NV may be locked to a video black burst signal, so that source to destination "Takes" occur during the video reference signal's vertical blanking interval. With no reference input, Takes occur asynchronously within 0. seconds of being issued by the control system. Audio data passes through the switch at any sample rate within the router s capability (- khz). Asynchronous switching is the simplest and most fundamental method of connecting equipment running at diverse sample rates. However, because signal routing connections made asynchronously occur at unpredictable locations in the AES/EBU data word, audible disruptions occur during switching. NVSA Synchronous AES/EBU Router A synchronous AES/EBU digital audio router provides the clean, noise-free operation required for live or on-air switching and for hot takes while editing. The router itself and the program data passing through it are locked to a common AES/EBU reference. By aligning takes with the AES reference signal, the synchronous router permits "clean" takes with no disruptions. Buffers within the synchronous router align the phase on all inputs as they enter the crosspoint matrix, guaranteeing that all data is phase aligned at the output of the NV, and that the switch to a new source is frame accurate. Takes in an NVSA occur at the beginning of the first AES/EBU frame following the start of the vertical blanking interval in the system's reference video signal. NVTC Time Code Router The Model NVTC is available for routing longitudinal SMPTE or EBU time code signals. It routes time code signals from VTRs, RDATs and other analog and digital devices that conform to the ANSI/SMPTE M- longitudinal time code standard or its EBU equivalent. It provides all of the advantages of the NV family compact size, low power consumption, incremental expansion and non-blocking X/Y architecture. It provides features that are unique among time code routers: The NVTC provides time code signal processing. Rather than degrade the signal like other time code routers, the NVTC reconstructs and thus enhances the quality of the input signal. This feature greatly reduces the cost, complexity and difficulties associated with time code distribution. The NVTC output signal maintains a controlled rise time over NV Routing Switchers

20 most of its operating range. The ANSI/SMPTE rise-time specification is ± µsecs at the nominal play speed of 0 frames/second. At twice that speed, the rise time of the NVTC output waveform is. µsecs. This proportion holds for the operating range of /x to 00x the nominal play speed. The router's overall operating range is Jog to 00x play speed. The time code signal amplitude at the output of the router is +. dbm (+. dbu) and is independent of play speed. The processing circuitry produces a unique, transformer-like operation that transparently adjusts to either single-ended or balanced inputs and outputs. This mechanism allows either twisted pair or coax connections to be made at either input or output without attenuating the signal. The input impedance of the time code receivers can be selected to precisely terminate a point-to-point connection or to facilitate a proper loop-through connection. This choice simplifies time code distribution while minimizing transmission degradation.. NV System Architecture Figure. on page shows the physical layout of a basic NV router. The Output frame houses from to Output modules, each with outputs, for a maximum capacity of outputs. This frame also houses a Matrix controller module (EM0) and an optional Output Monitor module (EM0). In lieu of the standard Matrix controller module, the Output frame may be fitted with a GSC Node Controller (EM) or a Universal controller (EM0) and an EM0 Clock Generator/Monitor module. Two pairs of slots are provided for the controller/monitor cards; redundant modules can be installed as an option. One or two power supplies are also fitted in this frame. Figure. illustrates the Output frame in greater detail. Each Input frame houses up to Input Modules, each of which handles inputs. A fully-loaded frame thus accommodates a maximum of inputs. Each Input frame (more than one can be used with an Output frame, as described later) is also fitted with a Crosspoint module for every Output module installed in the Output frame. The heart of the Crosspoint module is a pair of x crosspoint ICs arranged in a ( + ) x matrix. Figure. illustrates the arrangement of modules in a typical Input frame. Up to four Input frames can be stacked directly on top of a single 0 NV Routing Switchers

21 Output frame. Each Crosspoint (or Output) module connects through the top of the frame to the Crosspoint module in the frame just above it. The interconnection method is accomplished using a patented sliding-connector arrangement. By operating a lever/cam arrangement after inserting the module into its slot, the sliding connector is moved up through an opening in the frame to mate with a stationary connector in the card directly above it. This inter-frame connection forms a -channel vertical data bus for each of the Output Modules in the bottom frame of the stack. With up to Output Modules, signals can be routed at once on this set of vertical data buses. Each crosspoint IC output is tri-stated when switched off. Up to eight crosspoint outputs (two in each Crosspoint module, corresponding to Inputs - and - respectively) are connected to each vertical bus channel. However, only one crosspoint in one of the four Input frames can be enabled to drive each vertical bus channel. It is possible to expand an NV system to a maximum of 0 inputs in increments of inputs. Increasing the number of input frames is accomplished by using Roll-Over and Roll-Under frames with interconnecting cables to extend the number of Input Frames in the "stack". Figure. on the facing page illustrates such a system. It is also possible to extend an NV system to a maximum of 0 outputs in increments of outputs. To go beyond outputs, a second "stack" is required. The number of available outputs can thus be increased by doubling, tripling or quadrupling the number of router stacks in the system. By using input fan-out distribution amplifiers, all inputs are made available to each stack. See Figure. on the next page for an illustration of a typical system configured in this way. A single PS00/ Power Supply will support a -output by -input router. A redundant supply can be fitted into the frame to provide increased reliability. Multiple and/or extended stacks require additional power supplies in each stack to accommodate the modules located there. When stacks are extended using Roll-Over/ Roll-Under frames, additional power supplies are located in the Roll-Under and Roll-Over frames. The frames and power supplies used in the NV routing system are UL listed. Figure. shows a highly simplified block diagram illustrating the signal flow path through an NV routing switcher. Figure. illustrates an example of how the various components in a specified signal path are either enabled or tri-stated. This mechanism allows multiple Input NV Routing Switchers

22 frames to share (connect to) the vertical data buses without degrading the signal path.!. Backplane (Inputs, Outputs and Control Signals) NOTE: Information on how to connect cables to the inputs and outputs on the backplanes is presented in Section of this manual. Input and Output Backplanes Passive input connector assemblies that plug into the rear of each frame provide the cable interface for the input and output modules. The active modules (Input, Crosspoint and Output Modules, along with the controller/clock generator/monitor modules) can thus be removed without disturbing external cabling. Input and output connectors are twisted-pair terminal blocks or bayonet-style BNC connectors, depending on the options ordered. AES/EBU twisted-pair inputs and outputs are shielded, balanced and transformer coupled. Control Signal Backplanes The type of backplane furnished with the control system modules depends on the type of controllers ordered. For standard systems, a matrix controller (or matrix controllers, if two are ordered for redundancy) is furnished with its own backplane/connector assembly. The same is true for the optional monitor output modules that can be installed in these systems. Systems fitted with GSC (Tektronix/Grass Valley SMS-000 interface) or NVISION Universal controllers are supplied with a single backplane assembly which accommodates one or two control modules and one or two Clock Generator/Output Monitor modules. Later systems furnished with NVISION Universal control module(s) are also fitted with a single backplane assembly. This backplane accommodates one or two pairs of Universal controllers and Clock Generator/ Output Monitor modules. Rear views of the various frames and backplanes used in SMS-000 routers are illustrated on the next few pages. The table on the following page may prove helpful for locating a specific illustration. NV Routing Switchers

23 Table. - NV Frame and Controller Backplane Illustrations Figure No. Frame Signal Interface / Control Module Type. Input Frame Twisted-Pair and BNC / All. Output Frame Twisted-Pair / NVISION Std. Matrix Controller (RS- I/ F).0 Output Frame BNC / NVISION Std. Matrix Controller (RS- I/F). Output Frame Twisted-Pair / Tektronix SMS-000 GSC Node Controller. Output Frame BNC / Tektronix SMS-000 GSC Node Controller. Output Frame Twisted-Pair / NVISION Universal Controller. Output Frame BNC / NVISION Universal Controller. Roll-Over/Roll-Under Frames All / All NV Routing Switchers

24 Input Frame No. (Inputs # - ) Up to Crosspoint Modules ( outputs per module for a total of outputs when filled.) Crosspoint Pull-Down Module (Slot ). Note: These modules are used only in NVA and NVTC routers with NVISION Universal or Tektronix / Grass Valley SMS-000 Node Controller(s). Up to Input Modules ( inputs per module for a total of inputs when filled.) Tri-State Vertical Bus (Supports up to signal input/crosspoint frames* in the vertical direction) Input Frame No. (Inputs # - ) Up to Crosspoint Modules in Slots - ( outputs per module for a total of outputs when filled). Up to Input Modules ( inputs per module for a total of inputs when filled.) Tri-State Vertical Bus Crosspoint Pull-Down Module (Slot ). Note: These modules are used only in NVA and NVTC routers with Tektronix/Grass Valley SMS-000 GSC Universal Controller(s). Input Frame No. 0 (Inputs # - ) Up to Crosspoint Modules (Slots -). Redundant (Secondary) Controller and optional Clock Generator/Monitor Output modules (Slots and ) Tri-State Vertical Bus Primary Controller and optional Output Monitor or Clock Generator/Output Monitor modules (Slots and ) Output Frame (Outputs # - ) Up to Output modules ( outputs per module for a total of when filled.) Power Supply Optional Redundant Power Supply *NOTE: The vertical data bus can be extended to include up to Input/ Crosspoint frames (0 inputs) using Roll-Over and Roll-Under frames. See the Instruction Manual for details. Figure. - NV Frame Layout ( x Configuration Shown) NV Routing Switchers

25 Primary Controller (Standard, GSC or Universal) Secondary Controller (GSC or Universal) Optional Monitor or Clock Generator/Monitor* Secondary Clock Generator/Monitor* Output Modules ( maximum) Control Bay - Slot Control Bay - Slot Control Bay - Slot Control Bay - Slot Outputs - Outputs - Outputs 0 - Not Used PS00 Power Supply Optional Redundant PS00 Power Supply *NOTE: A Clock Generator/Monitor module is required in NVSA routers fitted with GSC or Universal controllers. Figure. - NV Output Frame Layout NV Routing Switchers

26 Input Modules Crosspoint Modules (Slots -) Inputs - Output Buses - Output Buses - Output Buses 0 - Crosspoint Pull-Down Module (See Notes) Inputs - Inputs - NOTE: Crosspoint Pull-Down modules are used only with NVA and NVTC routers fitted for use with NVISION Universal Controllers or with Tektronix / Grass Valley SMS-000 routing systems. Figure. - Input/Crosspoint Frame Layout NV Routing Switchers

27 PS PS Roll-Over Frame Input Frame "Stack" Interconnection Cables ( per Outputs) Input Frame Input Frame Input Frame Input Frame Audio and Frame ID Data Input Frame Input Frame 0 Crosspoint Selection Data Input Frame Roll-Under Frame Output Frame Power Supply Optional Redundant Power Supply Power Supply Optional Redundant Power Supply Figure. - NV Layout Using Roll-Over/Roll-Under Frames (Note: 0 x Configuration Illustrated Above) NV Routing Switchers

28 Inputs # - Inputs # - Inputs # - From Input Signal DAs From Input Signal DAs From Input Signal DAs Input Frame A Tri-State Vertical Bus (Supports up to signal input/crosspoint frames* in the vertical direction) Input Frame A Tri-State Vertical Bus Input Frame 0A From Input Signal DAs From Input Signal DAs From Input Signal DAs Input Frame B Tri-State Vertical Bus (Supports up to signal input/crosspoint frames* in the vertical direction) Input Frame B Tri-State Vertical Bus Input Frame B From Input Signal DAs From Input Signal DAs From Input Signal DAs To Optional Additional Stacks If Used (Maximum No. of Stacks = ) Tri-State Vertical Bus Tri-State Vertical Bus Output Frame A Outputs - Output Frame B Outputs - 0 Power Supply Optional Redundant Power Supply Power Supply Optional Redundant Power Supply Stack A (Outputs # - ) Stack B (Outputs #-0) Figure. - NV Multiple Stack Frame Layout ( x 0 Shown) NV Routing Switchers

29 Control Signals To Other Input Frame(s) Tri-State Vertical Bus From Other Input Frames Input Frame Input Module Crosspoint Module In Crosspoint Switch Input Receiver One of Input Modules ( Inputs per Module, or Inputs per Input frame) One of Crosspoint Modules per Input frame ( Inputs x Outputs Per Module) Control Data To Input Frames Tri-State Vertical Bus From Input Frames Output Frame Controller Module Output Module Out Buffer / Output Driver One of Output Modules ( Outputs Per Module) Figure. - NV Simplified Signal Flow Diagram NV Routing Switchers

30 Tri-state Input Frame, Slot, Vertical Data Bus... U0, U Tri-state EM0 Crosspoint Module XPTO() Tri-state Input Input Frame, Slot, Vertical Data Bus... U0, U Enabled EM0 Crosspoint Module XPTO() Enabled Input Frame, Slot, Vertical Data Bus... U0, U Tri-state EM0 Crosspoint Module XPTO() Vertical Data Bus (Audio) Input Frame 0, Slot, Vertical Data Bus... U0, U Tri-state EM0 Crosspoint Module Enabled XPTO() Output 0 NV Output Frame, Slot, Vertical Data Bus EM Synchronous Output Module Note: For clarity, the vertical data bus signal paths represented by XPTO(0)-XPTO() and XPTO(0)-XPTO() are not shown. Figure. NV Signal Flow Diagram Illustrating Vertical Data Bus Signal Path (Input # Routed to Output #0) 0 NV Routing Switchers

31 Input # Input Frame Power Cable Retainer Bracket Timing Signal Cable Receptacle Inputs Inputs - Detail "A" GND Inputs - Inputs - FR000 (Twisted-Pair Audio/Time Code Inputs) Input # (See Detail "A") Input # Input Frame Power Cable Retainer Bracket Timing Signal Cable Receptacle Inputs Inputs - Inputs - Inputs - FR00 (BNC Audio Inputs) Input # Figure. - Rear View, NV Router Input Frames NV Routing Switchers

32 GND Outputs - Outputs - Outputs - Outputs - Detail "A" Output # (See Detail "A") RS- Serial Control Video Reference Input (BNC) AES/EBU Reference Input (Twisted-Pair) Sync to Input Frames - Sync to Input Frames CAUTION: FOR CONT. FIRE PROT., REPLACE FUSE ONLY WITH FUSE OF SPEC. TYPE AND RATING (0-0v) = AMP 0v (0-0V) =. amp 0v WATTS 0/0 HZ FREQ 0-0 / 0-0V SEE MANUAL TO SELECT VOLTAGE P/S UR P/S LISTED CONTROL #K0 PROFESSIONAL AUDIO/VIDEO EQUIPMENT NVISION, INC. Output # Figure. - Model NV Output Frame (Twisted-Pair) with NVISION RS- Serial Interface Controller NV Routing Switchers

33 Outputs - Outputs - Outputs - Outputs - Output # RS- Serial Control Video Reference Input (BNC) AES/EBU Reference Input (Twisted-Pair) Sync to Input Frames - Sync to Input Frames CAUTION: FOR CONT. FIRE PROT., REPLACE FUSE ONLY WITH FUSE OF SPEC. TYPE AND RATING (0-0v) = AMP 0v (0-0V) =. amp 0v WATTS 0/0 HZ FREQ 0-0 / 0-0V SEE MANUAL TO SELECT VOLTAGE P/S UR P/S LISTED CONTROL #K0 PROFESSIONAL AUDIO/VIDEO EQUIPMENT NVISION, INC. Output # Figure.0 - Model NV Output Frame (BNC) with NVISION RS- Serial Interface Controller NV Routing Switchers

34 GND Outputs - Outputs - Outputs - Outputs - Detail "A" Output # (See Detail "A") CH LOOP THRU LOOP THRU CH + - S + - S AES REF - 0 Ω AES VIDEO VIDEO NETWORK REF REF REF DATA - Ω MONITOR / CONTROL PARALLEL DATA INPUT FRAME SYNC FRAMES - FRAMES - +Ḡ + - G FRAMES 0- FRAMES - FRAMES - FRAMES 0- +Ḡ + - G FRAMES - FRAMES - +Ḡ + - G ALARMS OUTPUT MONITOR U Output # Figure. - Model NV Output Frame (Twisted-Pair) with GSC Node Controller NV Routing Switchers

35 Outputs - Outputs - Outputs - Outputs - Output # CH LOOP THRU LOOP THRU CH + - S + - S AES REF - 0 Ω AES REF - Ω VIDEO REF VIDEO NETWORK REF DATA MONITOR / CONTROL PARALLEL DATA CAUTION: FOR CONT. FIRE PROT., REPLACE FUSE ONLY WITH FUSE OF SPEC. TYPE AND RATING (0-0v) = AMP 0v (0-0V) =. amp 0v WATTS 0/0 HZ FREQ 0-0 / 0-0V SEE MANUAL TO SELECT VOLTAGE P/S UR P/S LISTED CONTROL #K0 PROFESSIONAL AUDIO/VIDEO EQUIPMENT NVISION, INC. Output # Figure. - Model NV Output Frame (BNC) with GSC Node Controller NV Routing Switchers

36 GND Outputs - Outputs - Outputs - Outputs - Detail "A" Output # (See Detail "A") AUX CONTROL MAIN CONTROL SECONDARY PRIMARY SECONDARY PRIMARY NODE BUS ETHERNET VIDEO REF VIDEO REF RS / DIAGNOSTICS SECONDARY PRIMARY POWER SUPPLY DIAGNOSTICS ROLLOVER ROLLUNDER AES REF S - + S Ḡ + - G ALARMS Ḡ + - G Ḡ + - G - FRAME CLOCKS 0- OUTPUT MONITORS - CAUTION: FOR CONT. FIRE PROT., REPLACE FUSE ONLY WITH FUSE OF SPEC. TYPE AND RATING (0-0v) = AMP 0v (0-0V) =. amp 0v WATTS 0/0 HZ FREQ 0-0 / 0-0V SEE MANUAL TO SELECT VOLTAGE P/S UR P/S LISTED CONTROL #K0 PROFESSIONAL AUDIO/VIDEO EQUIPMENT NVISION, INC. Output # Figure. - Model NV Output Frame (Twisted-Pair) with Universal Controller Module NV Routing Switchers

37 Outputs - Outputs - Outputs - Outputs - Output # AUX CONTROL MAIN CONTROL SECONDARY PRIMARY SECONDARY PRIMARY NODE BUS ETHERNET VIDEO REF VIDEO REF RS / DIAGNOSTICS SECONDARY PRIMARY POWER SUPPLY DIAGNOSTICS ROLLOVER ROLLUNDER AES REF S - + S - + +Ḡ G - ALARMS 0- +Ḡ + - G Ḡ + - G - FRAME CLOCKS 0- OUTPUT MONITORS - CAUTION: FOR CONT. FIRE PROT., REPLACE FUSE ONLY WITH FUSE OF SPEC. TYPE AND RATING (0-0v) = AMP 0v (0-0V) =. amp 0v WATTS 0/0 HZ FREQ 0-0 / 0-0V SEE MANUAL TO SELECT VOLTAGE P/S UR P/S LISTED CONTROL #K0 PROFESSIONAL AUDIO/VIDEO EQUIPMENT NVISION, INC. Output # Figure. - Model NV Output Frame (BNC) with Universal Controller Module NV Routing Switchers

38 NV Routing Switchers

39 . Installation and Configuration. General Information NVISION NV routing switchers are normally installed with the assistance of factory personnel. The following material is provided only for reference. CAUTION: The following installation procedures are intended for qualified personnel only. To reduce the risk of electric shock, do not perform any servicing other than that contained in the operating instructions unless you are qualified to do so.. System-Dependent Installation Considerations The procedures for configuring an NV routing switcher are somewhat dependent on the model and options purchased. Installation instructions are included in the sections which follow. Information on configuring each of the modules is included in their respective Data Packages located in Section of this manual. Please refer to the Data Packages for information on setting up and configuring individual modules. Before configuring individual modules, it may be helpful to refer to the information which follows. Control System Three types of control systems are available for NVISION NV routing switchers. The first is the standard NVISION version wherein firmware on the system's Matrix Controller module adapts the NV to serve as an "alien" matrix in any of a number of popular facility routing systems manufactured by others. The second version emulates a node in a Tektronix/Grass Valley SMS-000 routing switcher system. The third type incorporates NVISION s Universal Controller which can be configured for use with an RS- serial control interface or a Tektronix SMS-000 global serial channel interface. Regardless of the controller used, the NV is integrated seamlessly and transparently into the host control system. Before proceeding with the installation and operation of the NV, the system's installers and operators should first thoroughly familiarize themselves with the host system, how it is installed and how it operates. Asynchronous Audio Routing System Other than the need to follow good digital audio wiring practices, there are few special considerations for setting up an NVA digital audio routing switcher. Information for configuring each module in the NV Routing Switchers

40 system is included in its Data Package, located in Section of this manual. Only system-level installation information is located in this section.. The following information may prove useful when planning an asynchronous audio router installation. Asynchronous routing switchers resemble a remote-controlled patch bay with patch cords. As long as the digital audio sample rate is within specifications (- khz), the signal at each output of the router will be a replica of the selected input signal. By their very nature, asynchronous routers ignore audio frame boundaries when a new source is selected. When a switch is made, the data stream is interrupted in an unpredictable manner. As a result, a momentary loss of signal will occur until the destination (receiving) device locks to the new data stream and begins recovering the data correctly. For this reason, asynchronous routers should not be used to route "on-air" signals or signals that are being edited or recorded for later use. If a video reference is supplied, audio switching will occur during the vertical interval. However, this does not affect or improve audio data transient switching performance. Setting Up a Synchronous Audio Routing Switcher System NVSA synchronous digital audio routers perform the frame accurate switching required for editing sessions or live, on-air switching. Some items that should be considered when implementing such a system follow: Use a common audio synchronizing reference frequency throughout the facility. Since VTRs, RDATs and most audio-for-video processing equipment uses a sample rate of khz, it is usually the preferred reference frequency. In facilities that are devoted to audio/cd mastering,. khz may be a more appropriate reference frequency. Provide a master source for this reference frequency. The NVI- SION NV00 AES/EBU Reference Generator which can in turn be locked to the facility's video reference is an ideal choice for this application. PAL and NTSC video references should be derived from the same clock. The NVISION SG00 Universal Sync Generator provides simultaneous PAL and NTSC reference outputs. Adjust the sample rate or format of any digital audio equipment that cannot otherwise be locked to the reference signal. The NV00 Sample Rate Converter provides precise rate conversion and can 0 NV Routing Switchers

41 process varispeed signals. Integrate any analog audio equipment into the system by converting the analog signals to digital and vice versa. The NV00 Codec and NV0 and NV0 converters provide very high quality signal conversions. The connections between the analog equipment and the signal converters should be kept as short as possible. Plan the audio reference signal distribution. With all equipment accounted for, map out the reference signal connections. Calculate the number and locations of distribution amplifiers required to implement the reference network. NVISION NV0 Distribution Amplifiers can be used to fan-out the reference signal. Using loop-through techniques, very large distribution arrays can be created efficiently. Time Code Routing Time code routing systems require the same level of attention that one would apply to an asynchronous audio router installation. Most performance issues can be traced to poor signal quality from the source or due to poor wiring practices. With care, these problems can be minimized. Refer to the section on cable installation for more information on installing a time code router. Consider the following items when planning an NVTC time code router installation: The NVTC time code routing switcher is an asynchronous router. This means that it ignores the start of a time code frame when performing a "take". In this respect, the NVTC resembles a remote-controlled patch bay with patch cords. But unlike a patch bay, the NVTC reconstructs the signal, ensuring a highquality, controlled-rise time output signal. The controlled rise time is proportional to tape speed as long as the data rate is within specifications (/ play speed to 00x speed). At lower speeds, the rise time is the same as the rise time at / play speed. The NVTC is capable of passing longitudinal time code signals at any slow speed down to DC. However, proportional rise time performance cannot be guaranteed at jog speeds below /x. While the NVTC can pass very low speed time code signals, most sources cannot generate quality signals when slowed to nearstill-frame speeds. This is due to recording limitations for longitudinal data. If a video reference is supplied, time code switching will occur during the vertical interval. However, this does not affect or im- NV Routing Switchers

42 prove time code transient switching performance.!!. Output and Input Frame Installation Note: Some details in the following sections depend on the type of controller and clock generator modules (if used) installed in your system. These differences will be noted where they apply. The following discussion makes reference to Fig. on the facing page.. The NV installs in one or more " EIA-standard equipment racks. No fans or cooling equipment are required. It is only necessary to maintain adequate free air space around the equipment. CAUTION: Extra care must be taken not to bend connector pins while inserting modules before the frames are completely aligned. Always verify that a connector pair is aligned properly before seating a module with the injector/extractor levers.. Using the mm. Allen wrench supplied, remove the doors and rack mounting flange covers from each of the NV frames.. Install the Output frame into the rack.. Carefully test the fit of the Output modules in the Output frame. Plug a module into the far left, the far right, and the middle slots. The fit may be poor at this point; this test will confirm the general integrity of the connector alignment of the Output frame s passive interface boards. a. Open the module insertion/extraction levers until they clear the frame as the board enters the slot. b. Ensure alignment before fully seating the module with the levers. c. If the alignment is not good, check the position of the backplane in the frame. If it appears to be misaligned, loosen the rack screws slightly and insert several Output modules, seating them into the backplane. Then retighten the screws to secure the alignment.. Install the first Input frame in the rack. Attach it to the Output frame with three x0 mm screws. Insert these screws through the access holes in the floor of the Input frame and tighten them, bringing the two frames into alignment. Two of the screw holes are located between the vertical data bus connector opening and the backplane. The remaining hole is in the Input module section of the frame. See Figure.. NV Routing Switchers