We, Grass Valley Nederland B.V., Kapittelweg 10, 4827 HG Breda, The Netherlands, declare
under our sole responsibility that this product is in compliance with the following standards:
- EN60950-1 : Safety
- EN55103-1: EMC (Emission)
- EN55103-2: EMC (Immunity)
following the provisions of:
a. the Safety Directives 73/23//EEC and 93/68/EEC
b. the EMC Directives 89/336/EEC and 93/68/EEC
FCC Class A Statement
This product generates, uses, and can radiate radio frequency energy and if not installed and
used in accordance with the instructions, may cause interference to radio communications.
It has been tested and found to comply with the limits for a class A digital device pursuant to
part 15 of the FCC rules, which are designed to provide reasonable protection against such
interference when operated in a commercial environment.
Copyright
Trademarks
Website
Operation of this product in a residential area is likely to cause interference in which case the
user at his own expense will be required to take whatever measures may be required to correct
the interference.
Copyright Grass Valley Nederland B.V. 2007. Copying of this document and giving it to others,
and the use or communication of the contents thereof, are forbidden without express authority.
Offenders are liable to the payment of damages. All rights are reserved in the event of the grant
of a patent or the registration of a utility model or design. Liable to technical alterations in the
course of further development.
Grass Valley and Infinity are trademarks of Grass Valley, Inc. All other tradenames referenced are
service marks, trademarks, or registered trademarks of their respective companies.
Visit the Grass Valley public website to download the latest user’s guide updates and additional
information about your broadcast product:
LDK 5481 + LDK 4700 User’s Guide | DigiLink system1-1
Chapter 1
DigiLink system
1.1Introduction
The DigiLink system consists of an LDK 5481 camera adapter and an LDK 4700 base unit for
use with Grass Valley standard definition (SDTV) camera heads. The system features digital
signal processing and digital transmission of all signals between the camera head and base
unit to ensure there is no loss of quality.
As well as delivering high-quality 10-bit SDI video and audio of CD quality, the bidirectional
digital transmission system carries teleprompter, external video for viewfinder, intercom,
control and tally signals, embedded genlock and private data signals. All these signals are
embedded in the SDI signal streams.
The flexible system configuration makes DigiLink the ideal companion for Grass Valley cameras
in many environments. Depending on the application and cable lengths needed, the system
can utilize low-cost coax cables, existing multicore cables or hybrid or dual fiber connections.
Typical applications for DigiLink include educational use or small studios such as local TV
stations, continuity or announcement studios. It is also ideal for use in conference and
parliamentary systems or in high-end surveillance. The camera with DigiLink adapter can also
operate as a stand-alone unit by using its VTR output.
1.2Accessories
The following DigiLink accessories are available:
RS-232 powerline cableLDK 8120/02, LDK 8120/10, LDK8120/25
RS-422 powerline cableLDK 8121/02, LDK 8120/10, LDK8120/25
Headset dynamic XLR-5 with double muffLDK 8111/37
DC power supply 100W (2-out)LDK 5901/00
Local Control Panel LCP 100LDK 5201
Operational Control Panel OCP 400LDK 4640/10
v4.0
LDK 5481 + LDK 4700 User’s Guide | DigiLink system 1-2
1.3Compatibility
If you wish to control your camera locally, you can connect an OCP 400 to the RS-232
connector of the camera. When an OCP 400 panel is used with the DigiLink system, C2IP
functions (e.g. file management) are not supported by the system.
Note
☞
The LDK 5481 adapter is backwards compatible with existing LDK 5480 breakout boxes and
can be connected to them as described in the LDK 5480 User’s Guide.
1.4Configurations
1.4.1Digilink system SDI coax configuration
A camera head with an LDK 5481/00 adapter can be connected to the LDK 4700/00 base unit
using two coax SDI cables. The maximum length of cable that can be used is 250m (820 ft).
High quality coax cable should be used (for example, Belden 1694A). The DC power supply
for the camera is supplied directly to the adapter by an optional local power supply or by the
base unit (using a DC power cable).
Figure 1-1. DigiLink system SDI coax connection
LDK 5481/00
Soft Focus
er
Pow
on
SD Camera head
DigiLink Adapter
1
A
Clear
Clear
ND1/4
Star 4P
2
B
ND1/16
Star 6P
3
C
Smart
card
ND1/64
4
D
P wel
optional LDK 5901
DC power supply
2x coax cable
max. length 250m. (820ft.)
optional DC power cable
OCP 400/10
LDK 4700/10 DigiLink Base Unit
Ready On-air
RS-422 with
powerline LDK8121/xx
max. length 25m. (82ft.)
mains power
v4.0
LDK 5481 + LDK 4700 User’s Guide | DigiLink system1-3
When a DC power cable is used to power the camera from the base unit, refer to section
3.5.13 for the pin layout of the DC connector. The maximum length of the cable depends on
the type of cable and the power used by the camera. The table below is an indication of the
cable lengths that can be used.
Table 1-2. cable length indication for DC power cable
☞
listed cable
type
AWG 200.75 mm
AWG 181.0 mm
AWG 161.3 mm
Note
cable cross
section
2
2
2
max. length
(3A/40W)
50 m30 m
75 m45 m
125 m 75 m
Always use a power cable from the portable power cables category, type W, G, G-GC or PPE.
The cable must be listed in accordance with NEC article 400 of ANSI/NFPA70.
1.4.2DigiLink system multicore configuration
A camera head with an LDK 5481/00 adapter can be connected to the LDK 4700/10 base unit
using multicore cable. The maximum length of cable that can be used is 75 m (250 ft). The
base unit can supply power for the camera via the multicore cable. The power consumption
of the camera may reduce the maximum length of cable that can be used, so alternatively, the
power for the camera can be supplied directly to the adapter from the optional LDK 5901
power supply.
Figure 1-3. DigiLink system multicore connection
max. length
(5A/60W)
LDK 5481/00
☞
SD Camera head
Note
DigiLink Adapter
1
A
Clear
Clear
ND1/4
Star 4P
2
B
ND1/16
Star 6P
3
C
Smart
card
ND1/64
Soft Focus
4
D
P wel
Power
on
optional LDK 5901
DC power supply
26-pin CCZ-A Multicore cable
max. length 75m (250ft.)
OCP 400/10
LDK 4700/00 DigiLink Base Unit
Ready On-air
RS-422 with
powerline LDK8121/xx
max. length 25m. (82ft.)
mains power
Always use a listed 26-pin CCZ-A multicore cable compliant with EBU N21 (for example, Draka
multicore camera cable type 755-2 PVC.)
v4.0
LDK 5481 + LDK 4700 User’s Guide | DigiLink system 1-4
1.4.3Stand alone SDI coax configuration
A camera head with an LDK 5481/00 adapter can be connected to a recorder unit using an
SDI coax cable. Only the SDI signal is passed via the coax cable. The maximum length of cable
that can be used is 300 m (1000 ft). High quality coax cable should be used (for example,
Belden 1694A). The DC power supply for the camera is supplied directly to the adapter.
Figure 1-4. Stand alone SDI coax configuration
LDK 5481/00
DigiLink Adapter
1
A
Clear
Clear
ND1/4
Star 4P
2
B
ND1/16
Star 6P
3
C
Smart
card
ND1/64
Soft Focus
4
D
el
P w
r
e
w
o
n
P
o
e
/r
SD Camera head
optional LDK 5901
DC power supply
d
n
e
p
a
T
LCP 100
t
at
B
!
l
e
n
f
a
f
p
l
n/o
ro
t
o
n
R
o
c
l
VT
a
c
o
l
0
0
1
P
n
LC
tio
unc
F
te
ra
Ope
stop
start/
TR
V
n
i
a
G
k
c
a
l
B
1.4.4Stand alone multicore configuration
A camera head with an LDK 5481/00 adapter can be connected to a recorder using a
multicore cable. Power can be supplied by the recorder via the multicore cable or directly to
the adapter itself. To avoid degradation in the video signal, the maximum cable length is
restricted to 5 m (17 ft) when the component outputs are used in the recorder.
If the recorder uses the SDI signals, then the maximum length of cable depends on the ability
of the recorder unit to supply sufficient power to the camera. When the adapter is powered
directly the maximum length is 100 m (330 ft). With minimum power supplied from the
recorder unit the maximum length is 25 m (80 ft).
Video recorder
SDI coax cable
Figure 1-5. Stand alone multicore configuration
Video recorder
☞
SD Camera head
Note
LDK 5481/00
DigiLink Adapter
1
A
Clear
Clear
ND1/4
Star 4P
2
B
ND1/16
Star 6P
3
C
Smart
card
ND1/64
Soft Focus
4
D
l
e
w
P
r
e
w
o
n
P
o
optional LDK 5901
DC power supply
26-pin CCZ-A Multicore cable
/re
d
n
e
p
a
T
LCP 100
tt
a
B
!
l
e
n
f
a
p
/of
l
n
ro
t
o
n
R
o
c
T
l
V
a
c
o
l
0
0
1
P
LC
Function
erate
p
O
VTR start/stop
n
i
a
G
k
c
a
l
B
Always use a listed 26-pin CCZ-A multicore cable compliant with EBU N21 (for example, Draka
multicore camera cable type 755-2 PVC)
v4.0
LDK 5481 + LDK 4700 User’s Guide | DigiLink system1-5
1.4.5DigiLink system hybrid fiber configuration
A camera head with an LDK 5481/20 fiber adapter can be connected to the LDK 4700/20
base unit using a hybrid fiber cable that carries both signal and power. The maximum cable
length that can be used is 100 m (330 ft). The power consumption of the camera may reduce
the maximum length of cable that can be used, so alternatively, the power for the camera can
be supplied directly to the adapter from the optional LDK 5901 power supply.
Figure 1-6. DigiLink system hybrid fiber connection
LDK 5481/20
SD camera head
1
A
Clear
Clear
2
B
ND1/4
Star 4P
3
C
ND1/16
Star 6P
4
D
ND1/64
Soft Focus
P wel
n
Power
o
DigiLink adapter
Smart
card
Hybrid fiber cable
max. 100 m (330 ft)
LDK 4700/20 DigiLink Base unit
Ready On-air
RS-422 with
powerline LDK8121/xx
max. 25 m (82 ft)
Mains power
optional LDK 5901
DC power supply
1.4.6DigiLink system dual fiber configuration
A camera head with an LDK 5481/20 fiber adapter can be connected to the LDK 4700/20
base unit using a dual fiber cable. The maximum cable length that can be used is 5,000 m
(16,400 ft). The camera adapter must be powered locally by the optional LDK 5901 DC power
supply.
Figure 1-7. DigiLink system dual fiber connection
LDK 5481/20
LDK 5481/20
DigiLink adapter
DigiLink adapter
1
A
1
A
Clear
Clear
Clear
SD camera head
SD camera head
Clear
2
B
2
B
ND1/4
Star 4P
ND1/4
Star 4P
3
C
3
C
ND1/16
Star 6P
ND1/16
Star 6P
Smart
Smart
card
card
4
D
4
D
ND1/64
Soft Focus
ND1/64
Soft Focus
l
e
w
P wel
P
er
er
Pow
Pow
on
on
Hybrid fiber cable
Dual fiber cable
max. 100 m (330 ft)
max. 5,000 m (16,400 ft)
OCP 400/10
LDK 4700/20 DigiLink Base unit
LDK 4700/20 DigiLink Base unit
ReadyOn-air
Ready On-air
RS-422 with
RS-422 with
powerline LDK8121/xx
powerline LDK8121/xx
max. 25 m (82 ft)
max. 25 m (82 ft)
Mains power
Mains power
v4.0
optional LDK 5901
optional LDK 5901
DC power supply
DC power supply
OCP 400/10
OCP 400/10
LDK 5481 + LDK 4700 User’s Guide | DigiLink system 1-6
1.5Intercom
An intercom channel connects the base unit to the camera operator's headset. The operator's
intercom microphone signal is sent to the base unit. The headset can be connected to the 5
pin XLR headset connector at the back of the DigiLink adapter. For the connector and detailed
pin descriptions refer to chapter 2.7.7.
A conversation is started when the camera operator presses the VTR Start button at the front
of the camera or the VTR button on the lens. The function and behaviour of this button can be
defined in the INSTALL menu of the camera. Refer to the camera’s user’s guide.
The volume of the headset earmuffs can be adjusted by turning the audio volume knob at the
front (right side) of the camera.
Intercom configuration
The sidetone volume level (feedback signal from the microphone to the earmuffs) can be
adjusted withthe INSTALL/INTERCOM/SIDETONE function n the camera (available only when
a 4-wire connection is used).
Depending on the type of microphone the following items can be set in the INSTALL/
INTERCOM
menu in the camera:
•Microphone gain level (0 or +40 dB) with the CAM.MIC_GAIN function;
•Microphone power can be switched on or off with the CAM.MIC_POWER function.
Both 2-wire and 4-wire intercom connections can be used. On the base unit, set the setup
switch S1 in the Off-position when a 4-wire connection is used and set it in the On-position
when a 2-wire connection is used. Refer to chapter 3.5.2 for the description of the setup
switch.
The following figure shows an overview of the routing of the intercom system. For the
connector and detailed pin descriptions refer to chapter 3.4.
Figure 1-8. Schematic overview of the intercom routing
DigiLink adapterDigiLink base unit
0 / 40 dB
Mic in
-24/-64 dBu
Cam Video
EXT/TP video
Out
0 dBu
front volume
Cam SDI OUT
Cam SDI IN
2 w.
4 w.
S1 Off = 4-wire
S1 On = 2-wire
PROD out (4-wire)
PROD in/out (2-wire)
0 dBu
pin 1,9 return
SDI
EXT
TP
PROD in (4-wire)
0 dBu
pin 5, 13 return
v4.0
LDK 5481 + LDK 4700 User’s Guide | DigiLink Adapter2-1
Chapter 2
DigiLink Adapter
Important information (English)
Read this information carefully before installing or servicing this equipment and retain them for
future reference. Read and comply with the warning and caution notices that appear in the
manual.
Any changes or modifications not expressly approved in this manual could void your authority
to operate this equipment.
Safety Summary
This informaton is intended as a guide for trained and qualified personnel who are aware of
the dangers involved in handling potentially hazardous electrical/electronic equipment. It is
not intended to contain a complete list of all safety precautions which should be observed by
personnel in using this or other electronic equipment.
The installation of this equipment involves risks both to personnel and equipment and must
be performed only by qualified personnel exercising due care.
During installation and operation of this equipment, local building safety and fire protection
standards must be observed.
Whenever it is likely that safe operation is impaired, the apparatus must be made inoperative
and secured against any unintended operation. The appropriate servicing authority must then
be informed. For example, safety is likely to be impaired if the apparatus fails to perform the
intended function or shows visible damage.
Warnings
Warnings indicate danger that requires correct procedures or practices to prevent death or
injury to personnel.
v4.0
•Do not modify this equipment.
•Installation of this equipment must only be performed by qualified personnel.
•Do not use any accessories other than those recommended by the manufacturer.
•In case of an emergency ensure that the power is disconnected.
LDK 5481 + LDK 4700 User’s Guide | DigiLink Adapter 2-2
•There are no user servicable parts inside. Refer servicing to qualified personnel only or
contact your local Grass Valley representative.
Cautions
Cautions indicate procedures or practices that should be followed to prevent damage or
destruction to equipment or property.
•Always switch off the camera before changing the power supply.
•Be extremely careful with the connectors between the camera head and the adapter. Do
not allow the guide pins to damage the pins of the connector. Follow these steps in the
order given. Tightening the screws in the wrong order could result in mechanical damage
to the camera. Loosening the screws in the wrong order could result in mechanical
damage to the camera.
•To prevent risk of overheating, ventilate the units correctly.
•Do not subject the unit to severe shocks or vibration.
•Do not expose the unit to extremes of temperature.
•Do not leave the unit in direct sunlight or close to heating appliances for extended periods.
•Avoid very damp places. If the environment is wet or damp a rain cover must be used to
protect the unit.
Wichtige Hinweise (Deutsch)
Lesen Sie bitte diese Hinweise genau bevor Sie diese Apparatur installieren und erhalten Sie
Sie für künftiges Nachslagen. Beachten und Lesen Sie alle mit “Achtung” und “Vorsicht”
gekennzeichneten Warnhinweise.
Änderungen haben zur Folge, dass die Garantie ungültig wird und der Benutzer für etwaige
durch die veränderte Ausrüstung verursachte Störungen haftbar gemacht werden könnte.
Sicherheit (Zusammenfassung)
Diese Informationen sind als Leitfaden für qualifiziertes Fachpersonal gedacht, das die
Gefahren beim Umgang mit potenziell gefährlicher elektrischer/elektronischer Ausrüstung
kennt. Es handelt sich dabei nicht um eine vollständige Zusammenstellung aller
Sicherheitsvorkehrungen, die beim Gebrauch dieser oder anderer elektronischer Geräte zu
beachten sind.
Die Montage, Wartung und Instandsetzung dieser Ausrüstung ist mit Risiken für Personal und
Ausrüstung verbunden und darf nur von qualifiziertem Personal vorgenommen werden, wobei
mit der nötigen Sorgfalt vorzugehen ist.
v4.0
Mit der Montage, Bedienung, Instandhaltung oder Instandsetzung dieser Ausrüstung
betrauten Personen wird dringend geraten, sich mit der Theorie und Praxis der Ersten Hilfe
vertraut zu machen.
Beim Einbau und Betrieb dieser Ausrüstung müssen die örtlichen Gebäudesicherheits- und
Brandschutzvorschriften beachtet werden. Vor dem Anschluss der Ausrüstung an die
Stromversorgung der Anlage muss überprüft werden, ob der Schutzleiter intakt ist.
LDK 5481 + LDK 4700 User’s Guide | DigiLink Adapter2-3
Wenn eine Beeinträchtigung des sicheren Betriebs wahrscheinlich ist, muss das Gerät außer
Betrieb gesetzt und gegen ungewollten Betrieb gesichert werden. Dann muss der zuständige
Kundendienst benachrichtigt werden. Eine Beeinträchtigung der Sicherheit ist zum Beispiel
dann wahrscheinlich, wenn das Gerät nicht wie vorgesehen funktioniert oder einen sichtbaren
Schaden aufweist.
Vorsicht!
Mit “Vorsicht” wird auf eine Gefahr hingewiesen, die korrekte Arbeits- oder Verfahrensweisen
erfordert, um Tod oder Verletzung zu verhindern.
•An dieser Ausrüstung dürfen keine Änderungen vorgenommen werden;
•Die Montage dieser Ausrüstung darf nur von Fachpersonal vorgenommen werden;
•Es sollen nur von den Hersteller empfohlene Zubehöre verwendet werden;
•Bei Eintreten eines Notfalls unbedingt die Stromzufuhr abschalten;
•Dieses Produkt enthält keine Anwenderteile. Reparatur und Wartung nur von
qualifiziertem Fachpersonal vornehmen lassen oder nehmen Sie Kontakt auf mit Ihrem
Grass Valley Vertretene;
Achtung!
Mit “Achtung” werden Arbeitsanweisungen gekennzeichnet, die zu befolgen sind, um eine
Beschädigung oder Zerstörung der Ausrüstung bzw. von Eigentum zu verhindern.
•Die Kamera vor dem Wechsel der Stromversorgung immer ausschalten;
•Stecker zwischen Kamerakopf und Adapter mit äußerster Vorsicht handhaben. Darauf
achten, dass die Steckerstifte nicht durch die Führungsstifte beschädigt werden.
•Um einer Überhitzungsgefahr vorzubeugen, ist das Produkt korrekt zu belüften;
•Dieses Produkt darf nicht an extremen stöße oder Zittern ausgesetzt werden;
•Dieses Produkt darf nicht an extremen Temperaturen ausgesetzt werden;
•Nicht langfristig in direktem Sonnenlicht oder in der Nähe von Heizgeräte zurücklassen.
•Vermeide feuchtigen Plätze. Wenn die Umgebung nass oder feucht ist, muss ein
Regenüberzug verwendet werden um das Gerät zu schützen.
v4.0
LDK 5481 + LDK 4700 User’s Guide | DigiLink Adapter 2-4
Fiber optic transmission units
CLASS 1
LASER PRODUCT
LASER KLASSE 1
PRODUKT
A yellow coloured CLASS 1 LASER PRODUCT label is located on top of the fiber optic
connector on the rear panel of the adapter.
Laser safety statement (Europe)
Fiber optic transmission units are classified as a “CLASS 1 Laser Product” according to
EN 60825-1, Safety of Laser products. Class 1 laser products are considered safe and do not
result in biological hazard if used according to the instructions.
Laser safety statement (US)
Fiber optic transmission units are classified as a “CLASS 1 Laser Product” according to
21CFR 1040.10 of the US Food and Drug Administration (FDA) Center for Devices and
Radiological Health.
WARNING
Use of controls, adjustments or performance of procedures other than those specified
herein may result in hazardous radiation exposure.
To ensure proper use of this product, please read this instruction manual carefully and
retain for future reference. Should the unit ever require maintenance, contact an
authorized service location.
Fiber optic cable precautions
Fiber optic cables and connectors are easily damaged; take the following percautions into
account:
•Do not bend the cable beyond the minimum bend range specified for the cable.
•Avoid kinks or sharp bends in the cable.
v4.0
•Avoid subjecting the cable to a high tension force.
•Do not twist the cable when connecting it to equipment.
•Insert connectors straight and fully into their corresponding sockets.
•In fiber optic cable systems always put the dust caps on cable and panel connectors
immediately after disconnecting a cable. Keep the dust caps clean.
LDK 5481 + LDK 4700 User’s Guide | DigiLink Adapter2-5
2.1Specifications
The DigiLink camera adapter is available in two versions:
•The LDK 5481/00 version has a 26-pin multicore connector and two SDI coax connectors
to connect to an LDK 4700/00 or LDK 4700/10 base unit;
•The LDK 5481/20 version has a hybrid fiber connector to connect to the LDK 4700/20
DigiLink fiber adapter.
When ordering, you specify the version you require.
ItemValu e
Power requirements12 VDC
Power consumptiontypical 12 W
Operating temperatures-20 to +45°C (-4 to +113°F)
Storage temperatures-20 to +60°C (-4 to +140°F)
Weight (approx.)1.5 kg (3.3 lbs)
Dimensions105 mm (L) x 120 mm (W) x 225 mm (H) mm without
handgrip
Power input12 VDC XLR-4 male (or multicore cable)
Power output12 VDC 1.5A; 4-pin Hirose
CVBS out (VF/EXT/TP)1 Vpp; 75 Ohm; BNC
Viewfinder output (CVBS/EXT/TP)1 Vpp; 75 Ohm; BNC
LCP connectorfor connecting an LCP 100 local control panel;
12-pin Hirose
LDK 5481/00 version (multicore/coax)
Multicore connection26-pin EBU N21 multicore connector
SDI Video outputSMPTE 259M, 0.8 Vpp, 270Mb/s; 75 Ohm; BNC
SDI Video inputSMPTE 259M, 0.8 Vpp, 270Mb/s; 75 Ohm; BNC