User manual

ManualsBrandsDolby Laboratories ManualsAmplifierDP569

Installation Guidelines

for Broadcast and

Professional Products

Issue 2

Summary of content (54 pages)

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Installation Guidelines for Broadcast and Professional Products Issue 2
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Dolby Installation Guidelines Dolby Laboratories, Inc. Corporate Headquarters Dolby Laboratories, Inc. 100 Potrero Avenue San Francisco, CA 94103-4813 Telephone 415-558-0200 Fax 415-863-1373 www.dolby.com European Headquarters Dolby Laboratories Wootton Bassett Wiltshire SN4 8QJ, England Telephone (44) 1793-842100 Fax (44) 1793-842101 Dolby, Pro Logic, and the double-D symbol are registered trademarks of Dolby Laboratories. Surround EX is a trademark of Dolby Laboratories.
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Dolby Installation Guidelines Table of Contents List of Figures............................................................................................................... vi List of Tables ............................................................................................................... vii Chapter 1 Overview ................................................................................................1-1 1.1 DP562 ........................................................................
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Dolby Installation Guidelines 2.5 2.6 2.7 2.8 2.9 2.4.6 Serial I/O (Remote)....................................................................2-7 2.4.7 General Purpose Input/Output (GPI/O)..................................2-8 2.4.8 Auxiliary Data ...........................................................................2-10 DP570 ....................................................................................................2-10 2.5.1 Dimensions ..................................................
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Dolby Installation Guidelines 2.10 2.11 DM100 ...................................................................................................2-22 2.10.1 Dimensions..............................................................................2-22 2.10.2 Audio Connections .................................................................2-22 2.10.3 Video Reference.....................................................................2-22 LM100 ..............................................................
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Dolby Installation Guidelines List of Figures Figure 2-1 Front and Back Panels of the DP562..................................................................2-1 Figure 2-2 Test Box Schematic ...............................................................................................2-3 Figure 2-3 Front and Back Panels of the DP563..................................................................2-3 Figure 2-4 Front and Back Panels of the DP564.............................................................
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Dolby Installation Guidelines List of Tables Table 2-1 Pin Connections for Status/Remote Port .............................................................2-2 Table 2-2 Pin Connections for the DP564 GPI/O Connector .............................................2-5 Table 2-3 Pin Connections of GPI/O In Port .........................................................................2-8 Table 2-4 Pin Connections of GPI/O Out Port ......................................................................
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Virtual Dolby Technologies Test DVD Track List iv
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Dolby Installation Guidelines Chapter 1 Overview This document is designed to help users correctly install Dolby pro audio products into broadcast, postproduction, and other environments. Operation of each unit is not covered in this document; for this information, refer to the dedicated user manual supplied with each unit. Additional copies of user manuals can also be obtained from Dolby Laboratories. Upon purchasing a new Dolby product, please register it at www.dolby.com.
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Dolby Installation Guidelines Overview When used for monitoring Dolby Digital or Surround EX encoding, it allows the effects of metadata to be auditioned, and the various downmixes to be heard. 1.4 DP569 The DP569 Dolby Digital Encoder takes up to six input channels (for 5.1-channel operation) and outputs an encoded Dolby Digital bitstream. The DP569 can use metadata generated by another unit and can be controlled by a PC running Microsoft® Windows® using the supplied DolbyRemote software.
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Dolby Installation Guidelines 1.9 Overview DP583 The DP583 is a frame synchronizer that accepts Dolby Digital, Dolby E, and PCM audio inputs and provides an output synchronized to match the local plant reference. It can operate with both a tracking and a fixed delay of up to 310 ms for each audio format. The output clock can be derived either from a video black reference or an AES reference. 1.10 DM100 The DM100 Bitstream Analyzer is a very useful tool for installation engineers.
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Dolby Installation Guidelines Chapter 2 Unit Connections and Dimensions 2.
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Dolby Installation Guidelines Unit Connections and Dimensions Remote Control mode is enabled in the User menu, which is entered by holding down the User button for three seconds. The LED on the User button illuminates when the user option is selected. This option is available only in version 2.5 or later of the unit software. See Section 6.4 for further information. The DP562 communicates at 9.6 kbps and has a fixed unit address of 8282. 2.1.
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Dolby Installation Guidelines Unit Connections and Dimensions General System Alarm RED 1 = AC-3; 0 = PCM YELLOW CRC Error YELLOW Power Supply Ground 1 6 2 7 3 8 4 9 5 10 K 3 Power Supply CW 2 +5V REMOTE LEVEL ADJUST 1 560 Ohm G N D Remote GREEN SP1 SPDT REMOTE LEVEL ENABLE Figure 2-2 Test Box Schematic 2.
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Dolby Installation Guidelines 2.2.2 Unit Connections and Dimensions Audio Connections The digital audio inputs and reference input are provided on female BNC connectors. Input signals should be compliant with AES3-id-1995 (unbalanced, 75Ω, 1 Vp–p standard output). AES3-id signals are very similar to analog composite video, although dedicated AES3 distribution equipment should be used.
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Dolby Installation Guidelines 2.3.1 Unit Connections and Dimensions Dimensions The DP564 is a 2-U rackmount and measures 88 × 483 × 376 mm (3.5 × 19 × 14.8 inches). Its net weight is 4 kg (8.5 lb). 2.3.2 Audio Connections The digital audio inputs and outputs and reference inputs are provided on female BNC connectors. Input signals should be compliant with AES3-id-1995 (unbalanced, 75Ω, 1 Vp–p standard output). Analog audio output is provided on balanced 3-pin XLR connectors.
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Dolby Installation Guidelines Unit Connections and Dimensions GPIO Controller 1 2 3 4 5 6 Full Pro Logic Stereo Mono Custom Line Error Solo Volume Dim / Mute Ref Figure 2-5 The Cat. No. 549 GPIO Controller 2.3.5 LTC Output The DP564 has linear timecode (LTC) output on a female BNC connector. 2.3.6 10/100Base-T It also has an Ethernet 10/100Base-T port with auto-detection, on an RJ-45 connector, which can be used for remote control and as an audio streaming input. 2.
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Dolby Installation Guidelines 2.4.2 Unit Connections and Dimensions Audio Connections The digital audio inputs and reference input are provided on female BNC connectors. Input signals should be compliant with AES3-id-1995 (unbalanced, 75Ω, 1 Vp–p standard output). AES3-id signals are very similar to analog composite video, although dedicated AES3 distribution equipment should be used.
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Dolby Installation Guidelines Unit Connections and Dimensions provides a user-friendly control system for most of the unit’s functions. The serial I/O connections can also be used for software upgrades. The DP569 can communicate at rates of 9.6, 19.2, or 38.4 kbps. The unit address can be any discrete tributary address as specified in SMPTE RP 113-1996. See Section 6.4 for further information. 2.4.
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Dolby Installation Guidelines Unit Connections and Dimensions Pins 5–8 These operate in the same way as pins 2–4. The relevant preset is recalled immediately if a high-to-low transition occurs. If pin 1 is grounded, then bypass operation is active irrespective of the setting of Bypass mode within the preset.
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Dolby Installation Guidelines Unit Connections and Dimensions Pin 4 This output reflects the state of the Dolby Digital (AC-3) encoding process. A highlevel output indicates that the Dolby Digital encoding process is not active. A lowlevel output indicates that the Dolby Digital encoding process is active. (This includes test tone modes.) Note: The combination of the pass-through and encoding outputs indicates the DP569 output status.
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Dolby Installation Guidelines 2.5.1 Unit Connections and Dimensions Dimensions The DP570 is a 2-U rackmount and measures 88 × 483 × 330 mm (3.5 × 19 × 13 inches). Its net weight is 3.6 kg (7.9 lb). 2.5.2 Audio Connections The digital audio inputs and Lt/Rt input are provided on female BNC connectors. The Lt/Rt input has a loop-through connection that requires 75Ω termination if this facility is not being used. The inputs should be compliant with AES3-id-1995.
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Dolby Installation Guidelines Unit Connections and Dimensions Table 2-6 Pin Connections for the Cat. No. 548 Analog Option Card Stereo/Mono Output Pin 1 2 3 4 5 6 7 8 9 10 11 12 13 2.5.
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Dolby Installation Guidelines Unit Connections and Dimensions Table 2-7 Pin Connections for the DP570 GPI/O Connector Pin Function Pin 1 2 3 4 5 6 +5 V (150 mA) Fault Output Error Output User-Defined Output Solo Tally Output Solo Control Input 7–19 20 21 22 23–36 37 Function User-Defined Outputs Encoder A Input Encoder B Input Encoder Present Input User-Defined Inputs Digital Ground Cat. No. 549 See Section 2.3.4 for details on the Cat. No. 549 GPIO Controller, which can be used with the DP570.
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Dolby Installation Guidelines 2.6.1 Unit Connections and Dimensions Dimensions The DP571 is a 1-U rackmount and measures 44 × 483 × 324 mm (1.75 × 19 × 12.75 inches). Its net weight is approximately 2.7 kg (6 lb). 2.6.2 Audio Connections The digital audio inputs are provided on female BNC connectors. Input signals should be compliant with AES3-id-1995 (unbalanced, 75Ω, 1 Vp–p standard output).
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Dolby Installation Guidelines Unit Connections and Dimensions Table 2-8 Pin Connections of GPI/O Port Pin Connection 1 2 3 4 5 6 7 8 9 Preset Tally A Reference Video Valid Dolby E Encoding Valid System Operational Fault Preset Tally B Preset Ctrl A Preset Ctrl B Ground Comments Preset tally output 1: Valid; 0: Ref video error 1: Valid; 0: Encoding error 1: Functional 0: Failed 1: Functional 0: Hardware fault Preset tally output Preset control input Preset control input — Pins 1 and 6 Presets 1–3 gen
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Dolby Installation Guidelines Unit Connections and Dimensions Table 2-10 Preset Mode Tally Indication on Status Port 2.6.7 Pin 7 Transition Pin 8 Transition Preset High-to-Low None or Low-to-High High-to-Low None or Low-to-High High-to-Low High-to-Low 1 2 3 Auxiliary Data The Auxiliary Data port is a 9-pin female RS-232 port that may be used for future enhancements. See Section 5.2 for pin assignments. 2.6.8 Metadata Input The metadata input port is an RS-485 port.
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Dolby Installation Guidelines 2.7.2 Unit Connections and Dimensions Audio Connections The main input is provided on a female BNC connector. The inputs should be compliant with AES3-id-1995 (unbalanced, 75Ω, 1 Vp–p standard output). AES3-id signals are very similar to analog composite video, although dedicated AES3 distribution equipment should be used. If the loop-through BNC connectors are not being used to feed additional equipment, terminate them with a standard 75Ω video terminator.
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Dolby Installation Guidelines Unit Connections and Dimensions Table 2-11 Pin Connections for the Status Port Pin 1 2 3 4 5 6 7 8 9 Direction Output Output Output Output Output Output Input Input N/A Connection Comments Dolby E Detect Reference Video Valid Dolby E Decoding Valid System Operational Fault Reserved PCM Channel Routing PCM Channel Routing Ground 1: Dolby E 0: PCM or none 1: Valid; 0: Ref video error 1: Valid; 0: Decoding error 1: Functional 0: Failed 1: Functional 0: Hardware fault — Voi
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Dolby Installation Guidelines Unit Connections and Dimensions -6dB PCM In L -6dB PCM In R + Voiceover Mode Mono/Stereo + L + R C LFE L Voiceover Attenuation (0dB to -31dB) R + C LFE Ls Ls Rs Rs _________ PCM Delay/PCM Delay Voiceover/Switched Out Figure 2-10 Diagram of Voiceover and Switched Output Operation Use the Voiceover and Switched Output functions when only basic control and editing functions are required.
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Dolby Installation Guidelines 2.8 Unit Connections and Dimensions DP579 D V-Ref Power Tri-Level Comp Fault Error Dolby E Tri-Level Sync Interface Model DP579 Dolby Laboratories Inc. San Francisco and U.K. Made in U.S.A. S/N XXXXX Model DP579 WARNING: Check fuse rating before applying power. CAUTION Dolby Black To reduce the risk of fire replace only with same type and rating 250V time-lag fuse.
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Dolby Installation Guidelines 2.9.2 Unit Connections and Dimensions Audio Connections The digital audio input with loop-through, bypass input, and digital audio outputs on the DP583 are all provided on female BNC connectors. Inputs should be compliant with AES3-id-1995. 2.9.3 Reference Inputs There is a video reference input on a female BNC connector, with loop-though, that accepts NTSC/PAL program or black as input.
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Dolby Installation Guidelines Unit Connections and Dimensions 2.10 DM100 2.10.1 Dimensions The DM100 is a handheld device that measures 100 × 200 × 41 mm (4 × 7.9 × 41 inches). Its net weight is 0.68 kg (1.5 lb). 2.10.2 Audio Connections Audio I/O is available on XLR, BNC, or ToslinkTM connectors. The female XLR connection has an internal 110Ω termination, and the female BNC input has an internal 75Ω termination. The male XLR output has 110Ω impedance, and the female BNC output has 75Ω impedance. 2.
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Dolby Installation Guidelines 2.11.2 Unit Connections and Dimensions Audio Connections The digital audio inputs are BNC female connectors and support PCM, Dolby Digital, and Dolby E. Analog inputs are provided on Neutrik® combination XLR/quarter-inch TRS connectors. F-type female connectors are available as an option and can be used to input CATV or off-air NTSC-M signals. Analog outputs are on stereo unbalanced RCA connectors and a stereo headphone jack. 2.11.
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Dolby Installation Guidelines Unit Connections and Dimensions Table 2-15 Pin Connections of Alarm Port Pin Connection Alarm 1 Output Input clip 2 Output Over-modulation 3 Output Above threshold 4 Output Below threshold 5 Output AES input loss 6 Output Dialnorm 7 Output Error 8 Output Fault 9 Signal Ground — 2-24
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Dolby Installation Guidelines Chapter 3 Installation Issues 3.1 Venting Dolby professional audio products are designed to operate within a temperature range of 5° to 45° C. They use natural convection cooling and therefore should not be mounted directly above any heat-generating equipment.
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Dolby Installation Guidelines 3.2.2 Installation Issues Dolby Digital The amount of delay added by the Dolby Digital encode/decode process varies, depending upon the sample rate being used. Table 3-1 shows the minimum delay values for encoding. The DP569 allows the encoding delay to be increased to any value between the minimum value and 450 ms. In the DP562, the decode latency values are fixed, dependent on the bitstream detect mode. These are also shown in Table 3-1.
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Dolby Installation Guidelines Installation Issues The DP570 has different setup options, depending on whether the Cat. No. 548 Analog Option Card is fitted. With the analog board fitted, the setup options are similar to those of the DP562. However, the DP570 allows multiple sets of speakers, for which level trims can be assigned individually. The DP570 also includes Dolby Digital Surround EXTM decoding and can therefore support setups of up to 7.1 speakers.
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Dolby Installation Guidelines Chapter 4 Hot Standby and Alarms Many Dolby products allow simple implementation for hot standby applications. Hot standby units and redundancy should be considered at a system level. Systems that utilize hot standby features allow automatic routing of the required signals from a unit that develops a fault to a spare unit in the system. Dolby products can easily be integrated into other redundant systems, such as the “n+1” design that is often used for transmission encoding.
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Dolby Installation Guidelines Hot Standby and Alarms The unit automatically enters Bypass mode when an internal fault occurs or when power is lost. Bypass mode can also be selected from the I/O Control menu or via the GPI/O input port.
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Dolby Installation Guidelines Hot Standby and Alarms a hardware fault has occurred, or power has been lost to the unit. By monitoring these pins on both the units, an operator can be alerted to problems with either unit. 4.7 DP572 The DP572 can be used in the same way as the DP571. 4.8 DP583 The DP583 features general fault and error outputs, as well as a number of other outputs on the status port. For further details of the connections of this port, see Section 2.9.5. 4.
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Dolby Installation Guidelines Chapter 5 Common Applications and Wiring 5.1 DVD Authoring Dolby Laboratories products are often used in the process of authoring DVD discs. The process requires a DP569 and a DP562 or DP564. A DP572 is also required if the audio is supplied in Dolby® E. Using the DolbyRemote software and Dolby Digital recorder package increases ease of use. The Dolby Digital Recorder software utility runs on a Windows® computer with a digital I/O soundcard. See www.dolby.
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Dolby Installation Guidelines 5.2 Common Applications and Wiring Monitoring Dolby E/Dolby Digital and Dolby Surround Production If a 5.1-channel mix is being created simultaneously with a mix encoded in Dolby Surround, the effects of both processes should be monitored. 5.2.1 Using a DP570 A few examples are included in this manual for monitoring 5.1 and Dolby Surround production. There are many variations to these setups that can be used, so a few typical designs are included here.
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Dolby Installation Guidelines Common Applications and Wiring DP570 Console Monitor Sends L/R 1/2 C/LFE 3/4 Ls/Rs 5/6 Lt/Rt 7/8 Digital Audio Inputs L/R Digital C/SW Emulator Outputs Ls/Rs Metadata Out 1/2 3/4 5/6 Console Monitor Returns Router Outputs Video Ref Thru 7/8 Video Ref (Studio Ref or Source VTR) DP571 Metadata Input DP563 Video Ref Main Out Program Audio from Console L/R C/LFE Ls/Rs Digital In Digital Thru 1/2 1/2 3/4 3/4 5/6 5/6 Digital Audio Inputs Main Out 5.
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Dolby Installation Guidelines Common Applications and Wiring DP569 DP562 L/R Program Audio L Digital In C/LFE R Ls/Rs Switched Output Audio Outputs Main In C SW Ls Rs Bypass Input DP563 Main Out Digital In Figure 5-4 Dolby Digital/Surround Monitoring 5.2.3 Monitoring Content Ingest Using the LM100 The LM100 can log various errors in incoming linear PCM, analog, Dolby E, and Dolby Digital audio. Information that can be logged includes loudness levels, signal clipping, and audio silences.
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Dolby Installation Guidelines 5.2.4 Common Applications and Wiring Off-Air Monitoring with the LM100 The LM100 can be used for monitoring off-air signals and triggering an alarm via the installed station system to indicate that there may be a problem with the audio. The unit can be configured so that an alarm is triggered, for example, when the audio has been silent for a defined period of time, or if the loudness level is not within a defined threshold.
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Dolby Installation Guidelines Chapter 6 Serial Communications These products all feature RS-485 and/or RS-232 connections. These can be used to upgrade the unit software or to control the operation of the unit. The electrical and mechanical specifications for these ports adhere to SMPTE 207M. The pin assignments for these connections are shown in the tables below. For information about the remote protocol, contact Dolby Laboratories. 6.
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Dolby Installation Guidelines Serial Communications Table 6-2 Pin Connections for 9-Pin RS-232 Ports (DP571) Pin 1 2 3 4 5 6 7 8 9 Connection NC RX TX NC GND NC NC CTS NC Comment Asynchronous data out Asynchronous data in Ground Current limiting resistor to +5 V RS-232 Using a Female 8-Pin Mini-DIN Connector This connection is used for the front-panel remote connections. Table 6-3 Pin Connections for 8-Pin RS-232 Ports Pin 1 2 3 4 5 6 7 8 6.
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Dolby Installation Guidelines Serial Communications Table 6-4 Pin Connections for RS-485 Ports (excluding Metadata Output) Pin Connection Comment 1 2 3 4 5 6 7 8 9 Shield (chassis ground) TX A RX B Ground NC Ground TX B RX A Shield (chassis ground) Asynchronous data out – Asynchronous data in + Asynchronous data out + Asynchronous data in – Table 6-5 shows pin connection information for metadata output ports: • • DP570 metadata output DP572 metadata output Table 6-5 Pin Connections for Metadata O
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Dolby Installation Guidelines Serial Communications same level, and that a listener does not have to “gain ride” every time they change channels. For further information about metadata, see A Guide to Dolby Metadata, or the Dolby Digital Professional Encoding Guidelines, available at www.dolby.com. The DP569, DP570, and DP571 have metadata inputs; the DP570 and DP572 have metadata outputs.