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Dolby E Tri
-
Level
MAIN
Sync Interface
Model DP579
Issue 2 Part Number 91757
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Model DP579 Dolby Tri-Level Sync Interface
DISCLAIMER OF WARRANTIES
: Equipment manufactured by Dolby Laboratories is
date of purchase. All warranties, conditions or other terms implied by statute are excluded
t
trademarks of Dolby L
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Dolby Laboratories, Inc.
Corporate Headquarters
Dolby Laboratories, Inc.
100 Potrero Avenue
San Francisco, CA 94103-4813
Tel 415-558-0200
Fax 415-863-1373
www.dolby.com
European Headquarters
Dolby Laboratories
Wootton Bassett
Wiltshire, SN4 8QJ, England
Tel (44) 1793 -842100
Fax (44) 1793-842101
WARNING: Check that the correct fuses have been installed.
To reduce the risk of fire, replace the fuses only
with the same type and rating.
warranted against defects in materials and workmanship for a period of one year from the
o the fullest extent allowed by law.
LIMITATION OF LIABILITY: It is understood and agreed that Dolby Laboratories’ liability
whether in contract, in tort, under any warranty, in negligence or otherwise shall not
exceed the cost of repair or replacement of the defective components and under no
circumstances shall Dolby Laboratories be liable for incidental, special, direct, indirect or
consequential damages (including but not limited to damage to software or recorded
audio or visual material), or loss of use, revenue or profit even if Dolby Laboratories or its
agents have been advised, orally or in writing, of the possibility of such damages.
Dolby and the double-D symbol are registered trademarks and Pro Logic, Surround EX, and AC -3 are
2001 Dolby Laboratories, Inc. All rights reserved.
All other trademarks remain the property of their respective owners.
S01/13903/13973 Issue 2 Part Number 91757
aboratories.
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Model DP579 Dolby Tri-Level Sync Interface
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Contents
List of Figures ..................................................................................iv
List of Tables ...................................................................................iv
Regulatory Not ices and Fuse Information .......................................... v
1 Introduction ............................................................................1
1.1 Dolby Black ...................................................................1
1.2 Product Compatibility .....................................................2
2 Setting Up ..............................................................................3
2.1 Rack Mounting ...............................................................3
2.2 Rear-Panel Connectors ..................................................4
2.2.1 AC Power ...........................................................4
2.2.2 Input...................................................................5
2.2.3 Dolby Black.........................................................5
2.3 Installation ..................................................................... 5
3 Operation...............................................................................7
4 Front-Panel Indicators .............................................................8
4.1 Power ...........................................................................8
4.2 V-Ref Indicators .............................................................8
4.2.1 Tri-Level .............................................................8
4.2.2 Comp.................................................................8
4.3 Fault .............................................................................8
4.4 Error .............................................................................9
5 Specifications .......................................................................10
5.1 Electrical Specifications ................................................ 10
5.2 Temperature and Humidity Specifications ...................... 10
5.3 Mechanical Specifications ............................................. 10
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List of Figures
1 Vertical Rack Mounting .............................................................3
2 Tandem Horizontal Rack Mounting with Cat. No. 546 .................4
3 Model DP579 Rear Panel .........................................................4
4 DP579 Wiring Example ............................................................5
5 Model DP579 Front Panel.........................................................8
List of Tables
1 Supported Input Scanning Rat es...............................................7
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Regulatory Notices and Fuse Information
FCC
This equipment has been tested and found to comply with the limits for a Class A
digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to
provide reasonable protection against harmful interference when the equipment is
operated in a commercial environment. This equipment generates, uses, and can
radiate radio frequency energy and, if not installed and used in accordance with
this instruction manual, may cause harmful interference to radio communications.
Operation of this equipment in a residential area is likely to cause harmful
interference in which case the user will be required to correct the interference at
his or her own expense.
Canada
This Class A digital apparatus complies with Canadian ICES-003.
UL
WARNING: Troubleshooting must be performed by a trained
technician. Do not attempt to service this equipment
unless you are qualified to do so. Check that the correct
fuses have been installed. To reduce the risk of fire,
replace only with fuses of the same type and rating.
The ground terminal of the power plug is
connected directly to the chassis of the unit. For
continued protection against electric shock, a
correctly wired and grounded (earthed) three-pin
power outlet must be used. Do not use a groundlifting adapter and never cut the ground pin on the three- prong plug.
UK
The power cord Dolby part 92021 supplied for use in Europe is not suitable for use
in the UK. To use the cord in the UK cut off the CEE7/7 plug and replace with an
approved BS 1363 13A plug:
The core that is coloured green and yellow must be connected to the terminal in the plug
identified by the letter E or by the earth symbol or coloured green or green and yellow.
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Model DP579 Dolby Tri-Level Sync Interface
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The core that is coloured blue must be connected to the terminal that is marked with the
letter N or coloured black.
The core that is coloured brown must be connected to the terminal that is marked with
the letter L or coloured red.
This apparatus must be earthed.
EU
This equipment complies with the EMC requirements of EN55103-1 and EN55103-2
when operated in an E2 environment in accordance with this manual.
IMPORTANT SAFETY NOTICE
This unit complies with the safety standard EN60065. The unit shall not be
exposed to dripping or splashing and no objects filled with liquids, such as coffee
cups, shall be placed on the equipment. To ensure safe operation and to guard
against potential shock hazard or risk of fire, the following must be observed:
• Ensure that your mains supply is in the correct range for the input power
requirement of the unit.
• Ensure fuses fitted are the correct rating and type as marked on the unit.
• The unit must be earthed by connecting to a correctly wired and earthed
power outlet.
• The power cord supplied with this unit must be wired as follows:
Live—Brown Neutral—Blue Earth—Green/Yellow
NT – NOTE DE SECURITE
Ce materiel est conforme à la norme EN60065. Ne pas exposer cet appareil aux
éclaboussures ou aux gouttes de liquide. Ne pas poser d'objets remplis de
liquide, tels que des tasses de café, sur l'appareil. Pour vous assurer d'un
fonctionnement sans danger et de prévenir tout choc électrique ou tout risque
d'incendie, veillez à observer les recommandations suivantes.
GB
• Le selecteur de tension doit être placé sur la valeur correspondante à votre
alimentation réseau.
• Les fusibles doivent correspondre à la valeur indiquée sur le materiel.
• Le materiel doit être correctement relié à la terre.
• Le cordon secteur livré avec le materiel doit être cablé de la manière
suivante:
Phase—Brun Neutre—Bleu Terre—Vert/Jaune
F
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Model DP579 Dolby Tri-Level Sync Interface
dalla casa
expuesta a goteos o salpicaduras y no deben colocarse sobre el equipo recipientes con
MAIN
WICHTIGER SICHERHEITSHINWEIS
Dieses Gerät entspricht der Sicherheitsnorm EN60065. Das Gerät darf nicht mit
Füssigkeiten (Spritzwasser usw.) in Berührung kommen; stellen Sie keine
Gefäße, z.B. Kaffeetassen, auf das Gerät. Für das sichere Funktionieren des
Gerätes und zur Unfallverhütung (elektrischer Schlag, Feuer) sind die folgenden
Regeln unbedingt einzuhalten:
• Der Spannungswähler muß auf Ihre Netzspannung eingestellt sein.
• Die Sicherungen müssen in Typ und Stromwert mit den Angaben auf dem
Gerät übereinstimmen.
• Die Erdung des Gerätes muß über eine geerdete Steckdose gewährleistet sein.
• Das mitgelieferte Netzkabel muß wie folgt verdrahtet werden:
Phase—braun Nulleiter—blau Erde—grün/gelb
NORME DI SICUREZZA – IMPORTANTE
Questa apparecchiatura è stata costruita in accordo alle norme di sicurezza
EN60065. Il prodotto non deve essere sottoposto a schizzi, spruzzi e
gocciolamenti, e nessun tipo di oggetto riempito con liquidi, come ad esempio
tazze di caffè, deve essere appoggiato sul dispositivo. Per una perfetta sicurezza
ed al fine di evitare eventuali rischi di scossa êlettrica o d'incendio vanno
osservate le seguenti misure di sicurezza:
• Assicurarsi che il selettore di cambio tensione sia posizionato sul valore corretto.
• Assicurarsi che la portata ed il tipo di fusibili siano quelli prescritti
costruttrice.
• L'apparecchiatura deve avere un collegamento di messa a terra ben eseguito;
anche la connessione rete deve avere un collegamento a terra.
• Il cavo di alimentazione a corredo dell'apparecchiatura deve essere collegato
come segue:
Filo tensione—Marrone Neutro—Blu Massa—Verde/Giallo
D
I
AVISO IMPORTANTE DE SEGURIDAD
Esta unidad cumple con la norma de seguridad EN60065. La unidad no debe ser
liquidos, como tazas de cafe. Para asegurarse un funcionamiento seguro y prevenir
cualquier posible peligro de descarga o riesgo de incendio, se han de observar las
siguientes precauciones:
• Asegúrese que el selector de tensión esté ajustado a la tensión correcta para su
alimentación.
• Asegúrese que los fusibles colocados son del tipo y valor correctos, tal como
se marca en la unidad.
• La unidad debe ser puesta a tierra, conectándola a un conector de red
correctamente cableado y puesto a tierra.
• El cable de red suministrado con esta unidad, debe ser cableado como sigue:
Vivo—Marrón Neutro—Azul Tierra—Verde/Amarillo
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Model DP579 Dolby Tri-Level Sync Interface
placeras på utrustningen." För att garantera säkerheten och gardera mot eventuell
MAIN
VIKTIGA SÄKERHETSÅTGÄRDER!
Denna enhet uppfyller säkerhetsstandard EN60065. Enheten får ej utsättas för
yttre åverkan samt föremål innehållande vätska, såsom kaffemuggar, får ej
elchock eller brandrisk, måste följande observeras:
• Kontrollera att spänningsväljaren är inställd på korrekt nätspänning.
• Konrollera att säkringarna är av rätt typ och för rätt strömstyrka så som
anvisningarna på enheten föreskriver.
• Enheten måste vara jordad genom anslutning till ett korrekt kopplat och
jordat el-uttag.
• El-sladden som medföljer denna enhet måste kopplas enligt foljande
Fas—Brun Neutral—Blå Jord—Grön/Gul
BELANGRIJK VEILIGHEIDS -VOORSCHRIFT:
Deze unit voldoet aan de EN60065 veiligheids-standaards. Dit apparaat mag niet
worden blootgesteld aan vocht. Vanwege het risico dat er druppels in het apparaat
vallen, dient u er geen vloeistoffen in bekers op te plaatsen. Voor een veilig gebruik
en om het gevaar van electrische schokken en het risico van brand te vermijden,
dienen de volgende regels in acht te worden genomen:
• Controleer of de spanningscaroussel op het juiste Voltage staat.
• Gebruik alleen zekeringen van de aangegeven typen en waarden.
• Aansluiting van de unit alleen aan een geaarde wandcontactdoos.
• De netkabel die met de unit wordt geleverd, moet als volgt worden
aangesloten:
Fase—Bruin Nul—Blauw Aarde—Groen/Geel
S
NL
Fuse Information
WARNING: To reduce the risk of fire, replace fuses only with the
same type and rating.
The unit uses a universal switching power supply that handles the full range of
nominal mains voltages between 90 and 264 VAC and any frequency between
50 Hz and 60 Hz.
Check Main Fuse
The Main fuse rating is:
1 Amp, 250 V, 20 mm, time -lag fuse (for all operating voltages)
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Model DP579 Dolby Tri-Level Sync Interface
Fuse
MAIN
WARNING: The power to the unit must be off when the following
steps are performed. Ensure that the main power
cable to the unit is not connected to a power source.
1. Open the fuse compartment door in the AC power input housing with a
small flat-blade screwdriver. Carefully pull out the fuse holder.
Fuse Holder
Checking or Replacing the Main Fuse
2. Check that the fuse has the correct rating. The fuse carrier must be inserted
into the compartment with the orientation shown in the figure above. Do
not force the carrier into the compartment or both could be damaged.
3. Snap the fuse compartment door closed.
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Model DP579 Dolby Tri-Level Sync Interface
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1 Introduction
Postproduction is migrating towards 24-frame acquisition and storage
to give high quality and flexibility across multiple deliver y formats.
The DP579 Dolby E Tri-Level Sync Interface allows high-quality
Dolby E multichannel audio and metadata to be stored on these
24-frame systems using the DP571 and DP572 Dolby E encoder and
decoder. Applications for the DP579 include DTV postproduction,
electronic cinema, telecine, and archiving.
The DP579 converts tri-level video sync into a specific reference
signal (which we have termed Dolby Black) that can be used by
existing Dolby E equipment. The DP579 also accepts traditional
NTSC and PAL program and black reference. The DP579 enables a
pair of Dolby E codecs to operate at 23.98, 24, and 30 fps in addition
to 25 and 29.97 fps. Please note that this requires a software upgrade
for the Dolby E codecs; the new software is included with the DP579.
The DP579 includes a loop-through for the input video reference
signal, and two Dolby Black outputs. Front-panel LEDs indicate power,
tri-level or composite sync presence, as well as error and fault conditions.
Its convenient half-rack width allows a single DP579 to be installed
alongside (or behind) existing DP571 and DP572 units. A rack-mount
kit (Cat. No. 546) is also available that allows two units to be mounted
side by side for redundancy or to drive multiple Dolby E codecs.
1.1 Dolby Black
Dolby Black is a bi-level, interlaced reference signal consisting of
sync information only. It contains between 500 and 700 lines, and is
compatible with the video front end of the DP570, DP571, DP572, and
other Dolby products. Dolby Black is a non-standard reference signal,
intended for use only with Dolby products, and should not be used as a
reference generator for other equipment.
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1.2 Product Compatibility
Use of the DP579 at any rate other than standard NTSC or PAL
requires a DP571 and/or DP572 running software version 2.0.0.0 or
later and a DP570 running software version 1.0.8.6 or later. The
DP579 is shipped with appropriate DP571 and DP572 software, which
should be loaded if an earlier version is currently installed.
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2 Setting Up
2.1 Rack Mounting
The DP579 is 1-U high, and approximately one-half the width of a
standard rack. A mounting bracket is included that allows the unit to
be mounted vertically inside a standard rack. Alternatively, two units
can be mounted together horizontally using the optional Cat. No. 546
Rack Mount Kit.
Figure 1 Vertical Rack Mounting
To mount the DP579 vertically, remove the two chassis screws nearest
the front panel. Use those same screws to reassemble with the
mounting bracket in place as shown in Figure 1.
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Figure 2 Tandem Horizontal Rack Mounting with Cat. No. 546
To mount one or two units horizontally in a 1-U space, remove the two
chassis screws nearest the front panel and the center screw near the
rear panel. Use those same screws to secure the DP579 to the Cat. No.
546 Rack Mount Kit tray. Assemble the rack-mount front panel to the
tray with the supplied screws and hex key. See Figure 2.
2.2 Rear- Panel Connectors
Model DP579
CAUTION
To reduce the risk of
fire replace only with
same type and rating
250V time-lag fuse.
~
100 – 240 Vac
5W 50-60 Hz
FUSE T 1AL
5 mm x 20 mm
2.2.1 AC Power
The DP579 incorporates a universal switching power supply that
handles the full range of nominal mains voltages betw een 90 and 264
VAC and any frequency between 50 Hz and 60 Hz.
WARNING: Check fuse rating
before applying powing
Input
Figure 3 Model DP579 Rear Panel
4
Dolby Black
Output 2Output 1
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Model DP579 Dolby Tri-Level Sync Interface
DP571 Dolby E Encoder
Output 2
Plant video reference
Video Ref
DP572 Dolby E Decoder
MAIN
2.2.2 Input
Two female BNC connectors on the rear panel are provided for video
reference input with a loop-through output. It is important that the
video reference signal is terminated correctly. A 75Ω terminator is
supplied in the DP579 packing kit for this purpose.
2.2.3 Dolby Black
Two female BNC connectors on the rear panel provide electrically
independent Dolby Black signals on Output 1 and Output 2.
2.3 Installation
Figure 4 shows an example of a DP579 installation.
DP579
loop-through or
terminate
Dolby Black
Output 1
Input
Video Ref
Figure 4 DP579 Wiring Example
The DP579 input is connected to the local plant video reference, while
the outputs are connected to the DP571 and DP572 Dolby E Encoder
and Decoder. It is important to correctly terminate both the input
reference signal and the two output signals. If one of the outputs is not
used, however, it is not necessary to terminate the unused connection,
as each signal is isolated.
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The DP579 can be permanently connected to the Dolby E encoder and
decoder as it will detect standard black and burst reference signals, and
pass them directly through to the output connectors.
The DP571 Dolby E Encoder will need to be configured to the video
frame rate present at the DP579 input. This setting is made in the
Operating Mode/Frame Rate setup menu.
The DP572 Dolby E Decoder will automatically detect the appropriate
frame rate from the DP579.
Both the DP571 and DP572 will indicate the presence of a valid Dolby
black signal via a green VRef LED on the front panel. If the Vref is
yellow this indicates a valid video reference, however this reference
does not match the Frame Rate setting in the case of the DP571 or the
frame rate of the input Dolby E stream in the case of the DP572. A red
LED indicates an invalid reference or no reference signal.
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3 Operation
The DP579 converts a tri-level video reference at its input into Dolby
Black, while preserving the input frame rate. No user intervention is
required. Table 1 summarizes the picture form ats and the corresponding
frame rates that the DP579 will accept and support. SMPTE 274M
specifies these formats in detail.
If an analog composite NTSC (29.97 fps) or PAL (25 fps, or ‘slow’
PAL at 24 fps) video signal is detected, the DP579 will enter Bypass
mode, and the signal is passed straight through to the output
connectors. Any other type of signal (e.g., AES/EBU, LTC, etc.) will
force the DP579 outputs to 0 V.
Table 1 Supported Input Scanning Rates
1
2
3
4
5
6
7
8
9
10
Input Format
1920 × 1080/60/2:1 30 i 1125
1920 × 1080/59.94/2:1 29.97 i 1125
1920 × 1080/50/2:1 25 i 1125
1920 × 1080/48/2:1 24 i 1125
1920 × 1080/47.95/2:1 23.98 i 1125
1920 × 1080/30/1:1 30 P 1125
1920 × 1080/29.97/1:1 29.97 P 1125
1920 × 1080/25/1:1 25 P 1125
1920 × 1080/24/1:1 24 P 1125
1920 × 1080/23.98/1:1 23.98 P 1125
Frame Rate
(fps)
7
Scan Lines
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4 Front-Panel Indicators
D
Figure 5 Model DP579 Front Panel
4.1 Power
The Power LED will light whenever AC power is present.
4.2 V-Ref Indicators
One of the following status LEDs will light if a suitable video
reference signal is detected.
4.2.1 Tri-Level
The Tri-Level LED indicates that a tri-level video input signal, in a
format supported by the DP579, has been detected (see Table 1).
4.2.2 Comp
The Comp LED indicates that a standard composite video input signal
has been detected.
4.3 Fault
If a hardware fault is detected within the DP579, the Fault LED will
light.
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4.4 Error
If neither tri-level nor composite video is detected, the Error LED
will light.
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5 Specifications
5.1 Electrical Specifications
Video
Reference Input
Dolby Black
Outputs
Power
Requirements
Power
Consumption
BNC female connector with loop through,
SMPTE RP154, 274M, 318M
Two BNC female connectors, per SMPTE
RP154, 318M (electrical)
90– 264 VAC, 50–60 Hz via internal supply;
designed to operate from a centrally switched
power source
5W typical; 9W maximum
5.2 Temperature and Humidity Specifications
Operating 0° to 50° C, natural convection cooling
Non-Operating
(Storage)
Humidity Up to 98% relative humidity, non-condensing
–20° to +70° C
5.3 Mechanical Specifications
Dimensions 200 × 120 × 40 mm (7.9 × 4.7 × 1.6 inches)
Net Weight 0.7 kg (1.5 lb), approximately
Shipping
Weight
1.2 kg (2.5 lb), approximately
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