Dolby Installation Guidelines Dolby Installation Guidelines S01/13621 i Issue 1
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 Far East Dolby Laboratories International Services, Inc.
Dolby Installation Guidelines Table of Contents List of Figures ........................................................................................................................vi List of Tables ........................................................................................................................vii Chapter 1 Overview ........................................................................................................1-1 1.1 DP562 ...............................................
Dolby Installation Guidelines 2.6 2.7 2.8 DP571 ................................................................................................2-11 2.6.1 Dimensions ...........................................................................2-11 2.6.2 Audio Connections ..............................................................2-11 2.6.3 Video Reference ..................................................................2-11 2.6.4 LTC Input ..............................................................
Dolby Installation Guidelines Chapter 5 Common Applications .....................................................................................5-1 5.1 DVD Authoring ....................................................................................5-1 5.2 Monitoring Dolby E/Dolby Digital and Dolby Surround Production 5-1 5.2.1 Using a DP570 .......................................................................5-2 5.2.2 Monitoring with a DP569 and DP562...................................
Dolby Installation Guidelines List of Figures 2-1 2-2 2-3 2-4 2-5 4-1 5-1 5-2 5-3 5-4 6-1 Front and Back Panels of the DP562 .........................................................................................2-1 Test Box Schematic....................................................................................................................2-3 Front and Back Panels of the DP563 .........................................................................................
Dolby Installation Guidelines List of Tables 2-1 2-2 2-3 2-4 2-5 2-6 2-7 2-8 2-9 2-10 2-11 3-1 6-1 6-2 6-3 6-4 6-5 Pin Connections for Status/Remote Port....................................................................................2-2 Pin Connections of GPI/O In Port...............................................................................................2-6 Pin Connections of GPI/O Out Port ............................................................................................
Dolby DMU AD/DA Converter 3-1
Dolby Installation Guidelines Chapter 1 Overview This document will 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 be also obtained from Dolby Laboratories.) Upon purchasing a new Dolby product, please register it on www.dolby.com.
Dolby Installation Guidelines 1.4 Overview DP570 The DP570 Multichannel Audio Tool allows users to generate metadata for input into either a Dolby E or Dolby Digital encoder, and to monitor the effects of metadata on an audio source in real time. It also includes features such as multiple speaker selection, audio channel routing (which eliminates the need for an external router), and separate inputs for Dolby Surround Pro Logic decoding and 5.1-channel monitor configuration. 1.
Dolby Installation Guidelines Chapter 2 Unit Connections and Dimensions 2.1 DP562 Figure 2-1 Front and Back Panels of the DP562 Dimensions The DP562 occupies one rack unit and measures 45 × 483 × 305 mm (1.75 × 19 × 12 inches). Its net weight is 4.5 kg (9.9 lb). 2.2 Audio Connections The digital audio input is a 3-pin female XLR connector. The input will accept either PCM in AES/EBU format or Dolby Digital (AC-3) in IEC 1937 format (formerly IEC 958 Annex B) as specified in ATSC A/52 Annex B.
Dolby Installation Guidelines Unit Connections and Dimensions the User button for three seconds. The LED on the User button will illuminate when the user option is selected. This option is only available 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. 2.2.
Dolby Installation Guidelines Unit Connections and Dimensions Figure 2-2 Test Box Schematic 2.3 DP563 Figure 2-3 Front and Back Panels of the DP563 2.3.1 Dimensions The DP563 occupies one rack unit and measures 44 × 483 × 324 mm (1.75 × 19 × 12.75 inches). Its net weight is 4.6 kg (10.1 lb).
Dolby Installation Guidelines 2.3.2 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, 1V peak-topeak standard output). AES3-id signals are very similar to analog composite video, although dedicated AES3 distribution equipment should be used.
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, 1V peak-topeak standard output). AES3-id signals are very similar to analog composite video, although dedicated AES3 distribution equipment should be used.
Dolby Installation Guidelines Unit Connections and Dimensions 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. 2.4.7 General Purpose I/O The GP I/O ports on the DP569 have female 9-pin D-connectors, and operate at 5 V CMOS output levels.
Dolby Installation Guidelines Unit Connections and Dimensions General Purpose Status Output Port (GPI/O Out) Table 2-3 Pin Connections of GPI/O Out Port Pin 1 2 3 4 5 6 7 8 9 Connection Fault Lock Pass-through Encoding User Preset 1 User Preset 2 User Preset 3 User Preset 4 Ground Comments Power supply or processor/memory fault Valid input and clock sources present and stable Valid AC-3 input signal being passed through AC-3 encoding of input signal active User Preset 1 selected User Preset 2 selected
Dolby Installation Guidelines 2.4.8 Unit Connections and Dimensions Auxiliary Data The Aux Data port is an RS-485 port. See Section 5.2 for pin assignments. In later versions of the unit software (v. 1.17 or later), this port can be used as an input for external metadata. This could be from the metadata output on a DP572 or from another metadata source. 2.5 DP570 Figure 2–5 Front and Back Panels of the DP570 2.5.1 Dimensions The DP570 occupies 2U of rack space and measures 88 × 483 × 330 mm (3.
Dolby Installation Guidelines Unit Connections and Dimensions Table 2-4 Pin Connections for the Cat. No.
Dolby Installation Guidelines 2.5.4 Unit Connections and Dimensions Serial I/O (Remote) The DP570 will allow remote control via the front-panel (RS-232) or rear-panel (RS485) ports. See Section 6.4 for further information. The serial I/O connections can also used for software upgrades. 2.5.5 General Purpose I/O The DP570 has a 37-pin female D-connector for the GPI/O connections. Most of these connections are user definable, but there are a few standard connections.
Dolby Installation Guidelines 2.6 Unit Connections and Dimensions DP571 Figure 2-6 Front and Back Panels of the DP571 2.6.1 Dimensions The DP571 occupies one rack unit 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, 1V peak-to-peak standard output).
Dolby Installation Guidelines 2.6.5 Unit Connections and Dimensions Serial I/O (Remote) Future versions of the DP571 will allow remote control via the front-panel (RS-232) or rear-panel (RS-485) ports. See Section 6.4 for further information. The serial I/O connections can also used for software upgrades. 2.6.6 General Purpose Input/Output (Status Port) The input and output signals are 0–5 V TTL.
Dolby Installation Guidelines Unit Connections and Dimensions Table 2-9 Preset Mode Tally Indication on Status Port Pin 7 Transition High-to-Low None or Low-to-High High-to-Low 2.6.7 Pin 8 Transition None or Low-to-High High-to-Low High-to-Low Preset 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.
Dolby Installation Guidelines Unit Connections and Dimensions 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. The PCM delay input is of the same specification as the main input, except that no termination is required as the PCM output is electrically isolated.
Dolby Installation Guidelines Unit Connections and Dimensions Table 2-10 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 Dolby E Detect Reference Video Valid Dolby E Decoding Valid System Operational Fault Reserved PCM channel routing PCM channel routing Ground Comments 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 — Voice
Dolby Installation Guidelines Unit Connections and Dimensions Figure 2-5 Diagram of Voiceover and Switched Output Operation Use the Voiceover and Switched Output functions when only basic control and editing functions are required. One example may be a local transmission center where the switched output could be used to insert a local commercial delivered as stereo PCM audio. The DP572 can also be used to insert voice-overs.
Dolby Installation Guidelines 2.8 DM100 2.8.1 Dimensions Unit Connections and 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). 2.8.2 Audio Connections Audio I/O is available on XLR, BNC, or Toslink 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. 2.8.
Dolby DMU AD/DA Converter 3-1
Dolby Installation Guidelines Chapter 3 Installation Issues 3.1 Venting The 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.
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. The table below shows the minimum delay values for encoding. The DP569 allows for the encoding delay to be increased to any value between the minimum value and 450 ms. The decode latency values are fixed, dependent on the bitstream detect mode of the DP562. The encoding delays are correct for v1.
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 Installation Guidelines Hot Standby and Alarms Figure 4-1 Hot Standby Operation of the DP569 For further security, pins 1 and 9 (ground) of the GPI/O ports can be used to control a unit fault alert. If pin 1 goes “low,” then a power supply or hardware fault has occurred. These can be used on both the encoders so that a faulty standby encoder can be identified before it is required.
Dolby Installation Guidelines Chapter 5 Common Applications 5.1 DVD Authoring Dolby products are often used in the process of authoring DVD discs. The process requires a DP569 and DP562. 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 95/98/NT computer with a digital I/O soundcard. It is used to produce .ac3 format files.
Dolby Installation Guidelines 5.2.1 Common Applications 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 will be used, so these are included as a couple of typical designs. Figure 5-2 Example Equipment Setup for Postproduction Studio or OB Truck. Figure 5-2 shows an example where the program audio is fed to the DP570.
Dolby Installation Guidelines Common Applications Figure 5-3 Example Equipment Setup for use with Consoles with Full Monitoring Functions Figure 5-3 shows a setup that uses separate program audio and monitor feeds. In this setup, the console being used should feature the required monitoring functions. 5.2.2 Monitoring with a DP569 and DP562 If a DP570 is not available, it is possible to use a DP562 along with a DP569 and DP563 to perform similar monitoring functions.
Dolby Installation Guidelines Common Applications Figure 5-4 Dolby Digital/Surround Monitoring 5-4
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 are as SMPTE 207M. The pin assignments for these connections are shown in the tables below. For information about the remote protocol, contact Dolby Laboratories. 6.
Dolby Installation Guidelines • Serial Communications DP571 Auxiliary Data (female) 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.
Dolby Installation Guidelines Serial Communications Table 6-4 Pin Connections for RS-485 Ports (Excluding Metadata Outputs) Pin 1 2 3 4 5 6 7 8 9 Connection Shield (chassis ground) TX A RX B Ground NC Ground TX B RX A Shield (chassis ground) • DP570 Metadata output • DP572 Metadata output Comment Asynchronous data out – Asynchronous data in + Asynchronous data out + Asynchronous data in – Table 6-5 Pin Connections for Metadata Output Ports Pin 1 2 3 4 5 6 7 8 9 6.
Dolby Installation Guidelines Serial Communications For further information about metadata, see user manuals or the Dolby Digital Professional Encoding Manual. The DP569, DP570, and DP571 have metadata inputs; the DP570 and DP572 have metadata outputs. Connecting a metadata input to a metadata output requires a 9-pin male to male cable with direct connections between the pins. As metadata streams only flow in one direction, the cable only requires pins 3, 8, and ground to be connected.
