DCS6000 Digital IR System

DCS 6000
User Manual
Digital Conference System
DCS 6000 Digital Infrared Wireless
Language Distribution
System
Danish Interpretation Systems
DIS
Danish Interpretation Systems
Copyright © 2009 DIS
User Manual
DCS6000 Digital IR System rev F.doc
14-05-2010
No part of this publication may be reproduced or utilised in any form or by any means without permission in writing from the
publisher.
Danish Interpretation Systems
User Manual
1 List of Contents
1
List of Contents ............................................. 3
3.5.1
2
Important ........................................................ 5
3.5.2
System with two or more transmitters
in one room ....................................................18
3
2.1
Important Safeguards........................... 5
2.2
Installation precautions ....................... 5
2.3
Cleaning................................................. 5
2.4
Repacking.............................................. 5
2.5
Warranty ................................................ 5
3.5.3
System with more than 4 carriers and
a radiator under a balcony .............................20
3.6
Testing the coverage area ..................20
3.6.1
Testing during installation ................20
System description and planning................ 6
3.1
System overview................................... 6
3.1.1
Infra-red transmitter .......................... 6
3.1.2
Infra-red radiators ............................. 6
3.1.3
Infra-red receivers ............................. 6
3.2
System technology............................... 6
3.2.1
IR radiation........................................ 6
3.2.2
Signal Processing ............................. 7
3.2.3
Quality modes ................................... 7
3.2.4
Carriers and channels....................... 8
3.3
Aspects of infra-red distribution
systems .............................................................. 9
3.3.1
Directional sensitivity of the receiver 9
3.3.2
The footprint of the radiator............... 9
3.3.3
Ambient lighting .............................. 10
3.3.4
Objects, surfaces and reflections.... 10
3.3.5
Positioning the radiators ................. 11
3.3.6
effects
Overlapping footprints and multipath
13
3.4
Planning an DCS 6000 Digital infra-red
radiation system.............................................. 13
3.4.1
Rectangular footprints..................... 13
3.4.2
Planning radiators ........................... 14
3.4.3
Cabling ............................................ 14
3.5
System with one transmitter ............16
4
3.6.2
Testing during a meeting .................20
3.6.3
Testing all positions and directions..20
3.6.4
Bad coverage...................................20
3.6.5
Black spots ......................................20
3.6.6
Interference from IR systems ..........21
DT 6008 & DT 6032 Transmitters ................22
4.1
Description...........................................22
4.2
Installation............................................23
4.3
Connections.........................................23
4.3.1
Connecting the DCS 6000
Conference System........................................23
4.3.2
Connecting other external audio
sources 23
4.3.3
Connecting an emergency signal ....23
4.3.4
Connecting to another transmitter ...24
4.4
Using the configuration menu ...........25
4.4.1
Overview..........................................25
4.4.2
Navigate through the menu .............26
4.4.3
Examples .........................................27
4.5
Configuration and operation ..............31
4.5.1
Start-up ............................................31
4.5.2
Main menu .......................................31
4.5.3
View transmitter status ....................31
4.5.4
View fault status...............................32
4.5.5
Set monitoring options .....................33
Setting the radiator delay switches .. 15
Copyright © 2009 DIS
DCS6000 Digital IR System rev F.doc
14-05-2010
No part of this publication may be reproduced or utilised in any form or by any means without permission in writing from the
publisher.
Danish Interpretation Systems
5
User Manual
4.5.6
View version information ................. 33
7.1
Description ...........................................47
4.5.7
Set transmission mode ................... 34
7.2
Charging procedure ............................47
4.5.8
Set number of channels .................. 34
8
Troubleshooting ...........................................49
4.5.9
Set channel quality and assign inputs
to channels .................................................... 35
9
Typical schematics ......................................51
4.5.10
Set channel names ......................... 36
4.5.11
Disable or enable carriers ............... 36
4.5.12
View carrier assignments ................ 37
4.5.13
Configure auxiliary inputs................ 37
4.5.14
Set sensitivity of the inputs ............. 38
4.5.15
Enable / disable IR-monitoring........ 39
4.5.16
Enable / disable headphone output 39
4.5.17
Choose transmitter name................ 39
4.5.18
values
Reset all options to factory default
39
Digital Radiators .......................................... 40
5.1
Medium and High Power Radiators .. 40
5.1.1
Description ...................................... 40
6
7
5.1.2
Radiator status indication................ 41
5.1.3
Mounting the radiators .................... 41
5.1.4
Connecting radiators to the transmitter
44
Digital Receivers.......................................... 45
6.1
Description .......................................... 45
6.2
Operation ............................................. 45
6.3
Reception test mode .......................... 46
6.4
Receiver headphones......................... 46
10
Technical Specifications ....................52
10.1
System Specification ..........................52
10.2
IR Transmitters System Specification
53
10.2.1 DT 6008 and DT 6013 Infrared Digital
Transmitter .....................................................53
10.3
Radiators and Accessories ................54
10.3.1 RA 6013 Medium and RA 6025 High
Power Radiators.............................................54
10.3.2
WB 6000 Wall Mounting Bracket .....54
10.4
Receivers and Battery Packs .............55
10.4.1 DR 6004, DR 6008 & DR 6032 Digital
IR Receivers...................................................55
10.4.2
BP 6001 NiMH Battery Pack............55
10.5
Charging Trays ....................................55
10.5.1 CT 6056 Charging Tray ...................55
10.6
Connection details ..............................56
10.6.1 Mains cables ....................................56
10.6.2
Audio cables ....................................56
10.6.3
Earphones........................................56
10.6.4
Emergency switch............................56
10.7
Accessories (to be ordered separately)
57
10.8
Guaranteed rectangular footprints ....58
CT 6056 Charging Tray ............................... 47
Copyright © 2009 DIS
DCS6000 Digital IR System rev F.doc
14-05-2010
No part of this publication may be reproduced or utilised in any form or by any means without permission in writing from the
publisher.
Danish Interpretation Systems
User Manual
2 Important
2.1 Important Safeguards
2.3 Cleaning
Prior to installing or operating this product
always read the Safety Instructions which are
available as a separate document.
To keep the cabinet in its original condition,
periodically clean it with a soft cloth. Stubborn
stains may be removed with a cloth lightly
dampened with a mild detergent solution. Never
use organic solvents such as thinners or abrasive
cleaners since these will damage the cabinet.
2.2 Installation precautions
Do not install the unit in a location near heat
sources such as radiators or air ducts, or in a place
exposed to direct sunlight, excessive dust or
humidity, mechanical vibration or shock.
To avoid moisture condensations do not install the
unit where the temperature may rise rapidly.
When the rechargeable battery pack is used, it is
advisable to check regularly after three years that
the batteries are not leaking. If there is any sign of
leakage or corrosion, replace the battery pack.
Ensure that only the battery pack BP 6001 is used.
The battery pack has to be replaced at least every
five years.
2.4 Repacking
Save the original shipping cardboard box and
packing material; they will become handy if you
ever have to ship the unit. For maximum protection,
re-pack the unit as originally packed from the
factory.
2.5 Warranty
The individual units in the DCS 6000 system are
minimum covered by 12 months warranty against
defects in materials or workmanship.
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3 System description and planning
3.1 System overview
3.1.2 Infra-red radiators
DCS 6000 Digital IR is a system for wireless
distribution of audio signals via infra-red radiation. It
can be used in a simultaneous interpretation
system for international conferences where multiple
languages are used.
Two types of radiators are available:
•
RA 6013 medium-power radiator for small/
medium conference venues
•
RA 6025 high-power radiator for medium/large
conference venues
To enable all participants to understand the
proceedings, interpreters simultaneously translate
the speaker’s language as required. These
interpretations are distributed throughout the
conference venue, and delegates select the
language of their choice and listen to it through
headphones.
Both types can be switched between full and half
power use. They can be mounted on walls, ceilings
or floor stands.
The DCS 6000 Digital IR system can also be used
for music distribution (mono as well as stereo).
Three multi-channel
available:
3.1.3 Infra-red receivers
infra-red
•
DR 6004 for 4 audio channels
•
DR 6008 for 8 audio channels
•
DR 6032 for 32 audio channels
receivers
are
They can operate with a rechargeable NiMH battery
pack or with disposable batteries. Charging circuitry
is incorporated in the receiver.
Note: The charging unit used for charging the
receivers fitted with a rechargeable NiMH battery
pack as well as the rechargeable battery pack will
not be available before year 2006.
Figure 3.1-A
DCS 6000 Digital IR system overview (with DCS
6000-system as input)
The DCS 6000 Digital IR Language Distribution
System comprises one or more of the following:
3.1.1 Infra-red transmitter
The transmitter is the core of the DCS 6000 Digital
IR system. Two types are available:
•
DT 6008 with inputs for 8 audio channels
•
DT 6032 with inputs for 32 audio channels
6
3.2 System technology
3.2.1 IR radiation
The DCS 6000 Digital IR system is based on
transmission by modulated infra-red radiation. Infrared radiation forms part of the electro-magnetic
spectrum, which is composed of visible light, radio
waves and other types of radiation. It has a
wavelength just above that of visible light. Like
visible light, it is reflected from hard surfaces, yet
passes through translucent materials such as glass.
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The infra-red radiation spectrum in relation to other
relevant spectra is shown in Figure 3.2-A.
%
100
stream. Extra fault algorithm information is
added. This information is used by the receivers
for fault detection and correction.
4. Modulation - A high frequency carrier signal is
phase-modulated with the digital information
stream.
75
1
50
25
4
2
0
400
1
2
3
4
5
Figure 3.2-A
5
500
600
700
800
3
900
1000 nm
Daylight spectrum
Sensitivity of the human eye
IR radiator
Sensitivity of IR sensor
Sensitivity of IR sensor with daylight filter
5. Radiation – Up to 8 modulated carrier signals
are combined and sent to the IR radiators,
which convert the carrier signals to modulated
infra-red light. In the IR receivers a reverse
processing is used to convert the modulated
infra-red light to separate analogue audio
channels.
In the IR receivers a reverse processing is used to
convert the modulated infra-red light to separate
analogue audio channels.
Infra-red radiation spectrum in relation to other
spectra
3.2.2 Signal Processing
3.2.3 Quality modes
The DCS 6000 Digital IR system can transmit audio
in four different quality modes:
The DCS 6000 Digital IR system uses high
frequency carrier signals (typically 2-8 MHz) to
prevent interference problems with modern light
sources (see section 3.3.3). The digital audio
processing guarantees a constant high audio
quality. The signal processing in the transmitter
consists of the following main steps (see Figure
3.2-B):
•
Mono, conference quality, maximum 32
channels (standard quality)
•
Mono, Hi FI quality, maximum 16 channels
(premium quality)
•
Stereo, conference quality, maximum 16
channels (standard quality)
1. A/D conversion - Each analogue audio
channel is converted to a digital signal.
•
Stereo, Hi FI quality, maximum 8 channels
(premium quality)
2. Compression - The digital signals are
compressed to increase the amount of
information that can be distributed on each
carrier. The compression factor is also related
to the required audio quality.
The conference quality mode uses less bandwidth
and can be used for transmitting speech. For music
the HI-FI quality mode gives near CD quality.
3. Protocol Creation - Groups of up to four digital
signals are combined into a digital information
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Audio
Channel
A/D Conversion
& Compression
4x
Protocol Creation
& Modulation
4x
Carrier (to IR Radiators)
A/D Conversion
& Compression
Audio
Channel
Figure 3.2-B
User Manual
Overview of the signal processing (for one carrier)
3.2.4 Carriers and channels
The DCS 6000 Digital IR system can transmit up to
8 different carrier signals (depending on the
transmitter type). Each carrier can contain up to 4
different audio channels.
The maximum number of channels per carrier is
dependent on the selected quality modes. Stereo
signals use twice as much bandwidth as a mono
signal, premium quality uses twice as much
bandwidth as standard quality. Per carrier a mix of
channels with different quality modes is possible, as
long as the total available bandwidth is not
exceeded.
The table below lists
combinations per carrier:
all
possible
channel
Figure 3.2-C
Directional characteristics of the receivers
Channel Quality
Mono
Conference
Mono
Hi-Fi
Stereo
Conference
Stereo
Hi-Fi
4
2
Possible
number of
channels
per carrier
4 x 10 kHz
1
2
1
2 x 10 kHz and 1 x 20 kHz
1
2 x 10 kHz and 1 x 10 kHz (left) and 1 x 10 kHz (right)
1
1 x 20 kHz and 1 x 10 kHz (left) and 1 x 10 kHz (right)
2
2 x 10 kHz (left) and 2 x 10 kHz (right)
2
2 x 20 kHz
1
8
Bandwidth
1 x 20 kHz (left) and 1 x 20 kHz (right)
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within which the radiation intensity is at least the
minimum required signal strength.
3.3 Aspects of infra-red distribution
systems
A good infra-red distribution system ensures that all
delegates in a conference venue receive the
distributed signals without disturbance. This is
achieved by using enough radiators, placed at well
planned positions, so that the conference venue is
covered with uniform Irradiation of adequate
strength.
There are several aspects that influence the
uniformity and quality of the infra-red signal, which
must be considered when planning an infra-red
radiation distribution system. These are discussed
in the next sections.
3.3.1 Directional sensitivity of the
receiver
Figure 3.3-A
Total coverage area of RA 6013 & RA 6025 for 1
to 8 carriers
The sensitivity of a receiver is at its best when it is
aimed directly towards a radiator. The axis of
maximum sensitivity is tilted upwards at an angle of
45 degrees (see Figure 3.2-C).
1
2
Rotating the receiver will decrease the sensitivity.
For rotations of less than +/- 45 degrees this effect
is not large, but for larger rotations the sensitivity
will decrease rapidly.
4
8
3.3.2 The footprint of the radiator
The coverage area of a radiator depends on the
number of transmitted carriers and the output power
of the radiator. The coverage area of the RA 6025
radiator is twice as large as the coverage area of
the RA 6013. The coverage area can also be
doubled by mounting two radiators side by side.
The total radiation energy of a radiator is distributed
over the transmitted carriers. When more carriers
are used, the coverage area gets proportionally
smaller.
The receiver requires a strength of the IR signal of
4 mW/m2 per carrier to work without errors
(resulting in a 80 dB S/N ratio for the audio
channels). The effect of the number of carriers on
the coverage area can be seen in Figure 3.3-A and
Figure 3.3-B. The radiation pattern is the area
Figure 3.3-B
Polar diagram of the radiation pattern for 1, 2, 4
& 8 carriers
The cross section of the 3-dimensional radiation
pattern with the floor of the conference venue is
known as the footprint (the white area in Figure
3.3-C to Figure 3.3-E).
This is the floor area in which the direct signal is
strong enough to ensure proper reception, when the
receiver is directed towards the radiator. As shown,
the size and position of the footprint depends on the
mounting height and angle of the radiator.
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3.3.3 Ambient lighting
The DCS 6000 Digital IR system is practically
immune for the effect of ambient lighting.
Fluorescent lamps (with or without electronic ballast
or dimming facility), such as TL lamps or energy
saving lamps give no problems with the DCS 6000
Digital IR system. Also sunlight and artificial lighting
with incandescent or halogen lamps up to 1000 lux
give no problems with the DCS 6000 Digital IR
system.
Figure 3.3-C
When high levels of artificial lighting with
incandescent or halogen lamps, such as spotlights
or stage lighting are applied, you should directly
point a radiator at the receivers in order to ensure
reliable transmission. For venues containing large,
unscreened windows, you must plan on using
additional radiators.
The radiator mounted at 15° to the ce iling
For events taking place in the open air a site test
will be required in order to determine the required
amount of radiators. With sufficient radiators
installed, the receivers will work without errors,
even in bright sunlight.
3.3.4 Objects, surfaces and reflections
Figure 3.3-D
The presence of objects in a conference venue can
influence the distribution of infra-red light. The
texture and colour of the objects, walls and ceilings
also plays an important role.
The radiator mounted at 45° to the ce iling
Infra-red radiation is reflected from almost all
surfaces. As is the case with visible light, smooth,
bright or shiny surfaces reflect well. Dark or rough
surfaces absorb large proportions of the infra-red
signal (see Figure 3.3-F). With few exceptions it
cannot pass through materials that are opaque to
visible light.
100%
Figure 3.3-E
10
The radiator mounted perpendicular (at 90°) to
the ceiling
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100%
80%
Danish Interpretation Systems
Figure 3.3-F
User Manual
The texture of the material determines how
much light is reflected and how much is
absorbed
Problems caused by shadows from walls or
furniture can be solved by ensuring that there are
sufficient radiators and that they are well positioned,
so that a strong enough infra-red field is produced
over the whole conference area. Care should be
taken not to direct radiators towards uncovered
windows, as most of this radiation will subsequently
be lost.
3.3.5 Positioning the radiators
Since infra-red radiation can reach a receiver
directly and/or via diffused reflections, it is important
to take this into account when considering the
positioning of the radiators. Though it is best if
receivers pick up direct path infra-red radiation,
reflections improve the signal reception and should
therefore not be minimised. Radiators should be
positioned high enough not to be blocked by people
in the hall (see Figure 3.3-G and Figure 3.3-H).
Figure 3.3-G
Figure 3.3-H
Infra-red signal not blocked by a person in front
of the participant
The figures below illustrate how infra-red radiation
can be directed to conference participants. In
Figure 3.3-I, the participant is situated clear from
obstacles and walls, so a combination of direct and
diffused radiation can be received. Figure 3.3-J
shows the signal being reflected from a number of
surfaces to the participant.
Infra-red signal blocked by a person in front of
the participant
Figure 3.3-I
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Combination of direct and reflected radiation
11
Danish Interpretation Systems
Figure 3.3-J
User Manual
Combination of several reflected signals
For concentrically arranged conference rooms,
centrally placed, angled radiators located high up
can cover the area very efficiently. In rooms with
few or no reflecting surfaces, such as a darkened
film-projection room, the audience should be
covered by direct path infra-red radiation from
radiators positioned in front.
Figure 3.3-K
Radiator position for covering seats in a square
arrangement
Figure 3.3-L
Radiator positioning in a conference hall with
auditorium seating and podium
When the direction of the receiver changes, e.g.
with varying seat arrangements, mount the
radiators in the corners of the room (see Figure
3.3-K). If the audience is always directed towards
the radiators, you do not need radiators at the back
(see Figure 3.3-L).
If the path of the infra-red signals is partially
blocked, e.g. under balconies, you should cover the
‘shaded’ area with an additional radiator (see Figure
3.3-M). The figures below illustrate the positioning
of the radiators:
12
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Figure 3.3-M
User Manual
Figure 3.3-N
Increased coverage area caused by added
radiation power
Figure 3.3-O
Reduced coverage area caused by differences
in cable signal delay
Radiator for covering seats beneath a balcony
3.3.6 Overlapping footprints and
multipath effects
When the footprints of two radiators partly overlap,
the total coverage area can be larger than the sum
of the two separate footprints. In the overlap area
the signal radiation power of two radiators are
added, which increases the area where the
radiation intensity is larger than the required
intensity.
However, differences in the delays of the signals
picked up by the receiver from two or more
radiators
can result in that the signals cancel each other out
(multi path effect). In worst-case situations this can
lead to a loss of reception at such positions (black
spots).
Figure 3.3-N and Figure 3.3-O illustrate the effect of
overlapping footprints and differences in signal
delays. The lower the carrier frequency, the less
susceptible the receiver is for differences in signal
delays. The signal delays can be compensated by
using the delay compensation switches on the
radiators (see section 3.5).
3.4 Planning an DCS 6000 Digital infrared radiation system
3.4.1 Rectangular footprints
Determining the optimal number of infra-red
radiators required to give 100% coverage of a hall
can normally only be done by performing a site test.
However, a good estimation can be made by using
‘guaranteed rectangular footprints’.
Figure 3.4-A and Figure 3.4-B show what is meant
by a rectangular footprint. As can be seen, the
rectangular footprint is smaller than the total
footprint. Note that in Figure 3.4-B the ‘offset’ X is
negative because the radiator is actually mounted
beyond the horizontal point at which the rectangular
footprint starts.
The guaranteed rectangular footprints for various
number of carriers, mounting heights and mounting
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radiators the distance between these radiators can
be increased by a factor 1.4 approximately (see
Figure 3.4-C).
R2
R3
R4
R1
R2
R3
R4
1.4 W
R1
W
angles can be found in section 10.8. The height is
the distance from the reception plane and not from
the floor.
L
H
1.4 L
X
W
Figure 3.4-C
The effect of overlapping footprints
L
3.4.2 Planning radiators
Use the following procedure to plan the radiators:
Figure 3.4-A
A typical rectangular footprint for a mounting
angle of 15°
1. Follow the recommendations in section 3.3 in
order to determine the positioning of the
radiators.
2. Look up (in the table) or calculate (with the
Footprint
Calculation
Program
DIS_FCPv5.3_.xlt) the applicable rectangular
footprints.
3. Draw the rectangular footprints in the lay-out of
the room.
H
4. If the receiver can pick up the signal of two
adjacent radiators in some areas, determine the
overlap effect and draw the footprint
enlargement(s) in the lay-out of the room.
X
W
5. Check whether you have sufficient coverage
with the radiators at the intended positions.
L
6. If not so, add additional radiators to the room.
Figure 3.4-B
A typical rectangular footprint for a mounting
angle of 90°
See Figure 3.3-K, Figure 3.3-L and Figure 3.3-M for
examples of a radiator lay out.
Guaranteed rectangular footprints can also be
calculated with the footprint calculation tool
(available on the documentation CD-ROM). The
given values are for one radiator only, and therefore
do not take into consideration the beneficial effects
of overlapping footprints. The beneficial effects of
reflections are also not included. As rule of thumb
can be given for systems with up to 4 carriers, that
if the receiver can pick up the signal of two adjacent
Tip:
The
Footprint
Calculation
Program
DIS_FCPv5.3_.xlt eases the work planning radiator
coverage. The Program is to be found at the ‘DCS
6000 Digital IR System User Manual CD’
14
3.4.3 Cabling
Signal delay differences can occur due to
differences in the cable length from the transmitter
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to each radiator. In order to minimize the risk of
black spots, use equal cable length from transmitter
to radiator if possible (see Figure 3.4-D). When
radiators are loop-through connected, the cabling
between each radiator and the transmitter should
be as symmetrical as possible (see Figure 3.4-E
and Figure 3.4-F). The differences in cable signal
delays can be compensated with the signal delay
compensation switches on the radiators.
50m
50m
50m
Symmetrical arrangement of radiator cabling
(recommended)
3.5 Setting the radiator delay switches
As described in section 3.3.6, differences in the
delays of the signals picked up by the receiver from
two or more radiators can cause black spots as a
result of the multi path effect. The signals picked up
by the receiver are delayed by:
50m
Figure 3.4-D
Figure 3.4-F
Radiators with equal cable length
the transmission from transmitter to radiator
through the cable (cable signal delay)
the transmission from radiator to receiver
through the air (radiation signal delay)
for systems with two or more transmitters: the
transmission through the slave transmitter(s)
To compensate the signal delay differences, the
delay of each radiator can be increased. These
signal delays can be set with the delay switches at
the back of the radiator.
The cable signal delays can be determined in the
following two ways:
Figure 3.4-E
Asymmetrical arrangement of radiator cabling (to
be avoided)
by measuring the cable lengths
by measuring the impulse response time with a
delay measurement tool
In both cases the cable signal delays can be
calculated manually and with the delay switch
calculation tool (available on the documentation
CD-ROM). It is not necessary to calculate the cable
signal delay in case:
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the radiators are directly connected to the
transmitter with equal cable length;
7. Add delay switch positions for radiators under a
balcony, if applicable (see section 3.5.3).
radiators are loop-through connected, but with
less than 5 m distance between the first and
last radiator in a trunk, and with equal cable
length between the first radiator in each trunk
and the transmitter.
8. Set the delay switches to the calculated switch
positions.
In these cases set the delay switches on all
radiators to zero and determine whether to
compensate for radiation signal delay (see section
3.5.3).
The next sections describe how to calculate the
delay switch positions manually for systems with
one transmitter, or two or more transmitters. See
the delay switch calculation tool for the procedures
how to calculate the delay switch positions
automatically.
Caution: Turn the delay switches carefully to a new
position until you feel that it clicks into position, to
prevent that a switch is positioned between two
numbers, which would result in a wrong delay
setting.
Note: For systems with a cable length difference of
more than 50 meters, it is recommended to use a
measurement tool to determine the delay
differences in order to calculate the delay switch
positions.
Figure 3.5-A and Table 3.5-1 illustrate
calculation of the cable signal delay.
the
20m
Tip:
The
Delay
Switch
Calculation
tool
DIS_DSCv5.3a_.XLT eases the calculation of the delay
switch positions. The Program is to be found at the ‘DCS
6000 Digital IR System User Manual CD’.
30m
R1
R2
3.5.1 System with one transmitter
20m
3.5.1.1
Determining delay switch
positions by measuring the
cable lengths
R3
30m
Use the following procedure to determine the delay
switch position based on cable lengths:
1. Look up the cable signal delay per meter of the
used cable. The manufacturer specifies this
factor.
2. Measure the lengths of the cables between the
transmitter and each radiator.
3. Multiply the lengths of the cables between the
transmitter and each radiator with the cable
signal delay per meter. These are the cable
signal delays for each radiator.
4. Determine the maximum signal delay.
5. Calculate for each radiator the signal delay
difference with the maximum signal delay.
R5
20m
Figure 3.5-A
System with five radiators and measured cable
lengths
Note: The used cable signal delay per meter is an
example. Use the actual signal delay per meter in
this calculation as specified by the manufacturer.
Caution: Turn the delay switches carefully to a new
position until you feel that it clicks into position, to
prevent that a switch is positioned between two
numbers, which would result in a wrong delay
setting.
6. Divide the signal delay difference by 33. The
rounded off figure is the signal delay switch
position for that radiator.
16
R4
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Danish Interpretation Systems
Table 3.5-1
Radiator
number
User Manual
Calculation of the cable signal delays
Total cable length
[m]
Cable signal delay
per meter [ns/m]
Cable signal delay [ns]
Signal delay
difference [ns]
Delay switch position
1
30
5,6
30*5.6 = 168
280-168 = 112
2
30+20 = 50
5,6
50*5.6 = 280
280-280 = 0
3
20
5,6
20*5.6 = 112
280-112 = 168
168/33 = 5.09 = 5
4
30
5,6
30*5.6 = 168
280-168 = 112
112/33 = 3.39 = 3
5
30+20 = 50
5,6
50*5.6 = 280
280-280 = 0
3.5.1.2
112/33 = 3.39 = 3
0/33 = 0
0/33 = 0
Set the delay switches to the calculated delay
switch positions.
Determining delay switch
positions by using a delay
measuring tool
The most accurate way to determine the cable
signal delays is to measure the actual signal delay
for each radiator as described in the following
procedure:
Figure 3.5-B and Table 3.5-2 illustrate the
calculation of the signal delays and the delay switch
positions.
1. Disconnect the cable from a radiator output of
the transmitter and connect this to a delay
measurement tool.
584 ns
350 ns
R2
R1
2. Disconnect a radiator from this cable.
237 ns
R3
3. Measure the impulse response time (in ns) of
the cable(s) between the transmitter and the
radiator.
4. Reconnect the cable to the radiator and repeat
steps 2 to 4 for the other radiators that are
connected to the same transmitter output.
5. Reconnect the cable to the transmitter and
repeat step 1 to 5 for the other radiator outputs
of the transmitter.
6. Divide the impulse response times for each
radiator by two. These are the cable signal
delays for each radiator.
7. Determine the maximum signal delay.
8. Calculate for each radiator the signal delay
difference with the maximum signal delay.
9. Divide the signal delay difference by 33. The
rounded off figure is the delay switch position
for that radiator.
R5
R4
563 ns
339 ns
Figure 3.5-B
Calculation System with five radiators and
measured impulse response times
Note The calculated delay switch positions based
on impulse response time can differ from the
calculated delay switch positions based on cable
lengths. This is caused by the accuracy of the
measurements and the accuracy of the cable signal
delay factor per meter as specified by the
manufacturer of the cable. If the impulse response
time is measured correctly, the calculated delay
switch positions will be the most accurate.
10. Add delay switch positions to radiators under a
balcony, if applicable (see section 3.5.3)
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Danish Interpretation Systems
Table 3.5-2
User Manual
Calculation of the delay switch positions of a system with one transmitter
Radiator
number
Impulse response
time [ns]
Cable signal delay [ns]
Signal delay
difference [ns]
1
350
350/2 = 175
2
584
584/2 = 292
292-292 = 0
0/33 = 0
3
237
237/2 = 118
292-118 = 174
174/33 = 5.27 = 5
4
339
339/2 = 169
292-169 = 123
123/33 = 3.73 = 4
5
563
573/2 = 281
292-281 = 11
11/33 = 0.33 = 0
292-175 = 117
117/33 = 3.54 = 4
8. Add delay switch positions to radiators under a
balcony, if applicable (see section 3.5.3)
3.5.2 System with two or more
transmitters in one room
When radiators in one multi purpose room are
connected to two transmitters, an extra signal delay
is added by:
Transmission from master transmitter to slave
transmitter (cable signal delay).
Transmission through the slave transmitter.
Use the following procedure to determine the delay
switch positions in a master-slave configuration:
1. Calculate the cable signal delay for each
radiator, using the procedures for a system with
one transmitter.
2. Calculate the signal delay of the cable between
the master and the slave transmitter in the
same way as for cables between a transmitter
and a radiator.
9. Set the delay switches to the calculated delay
switch positions
Note: When a master-slave configuration is used
for rooms which are always separated, the delay
switch positions can be determined per system and
the delay caused by transmission from master to
slave transmitter can be ignored.
Caution: Turn the delay switches carefully to a new
position until you feel that it clicks into position, to
prevent that a switch is positioned between two
numbers, which would result in a wrong delay
setting.
Figure 3.5-C, Table 3.5-1, Table 3.5-3 and Table
3.5-4 illustrate the calculation of the extra masterslave signal delay.
3. Add to the cable signal delay of the cable
between the master and the slave, the delay of
the slave transmitter itself: 33 ns. This gives the
master-to slave signal delay.
4. Add the master-to-slave signal delay to each
radiator connected to the slave transmitter.
5. Determine the maximum signal delay.
6. Calculate for each radiator the signal delay
difference with the maximum signal delay.
7. Divide the signal delay difference by 33. The
rounded off figure is the signal delay switch
position for that radiator.
18
Delay switch position
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Figure 3.5-C
50m
R1
System with master and slave transmitter in
multi purpose room
50m
R2
Tx1
50m
R3
R4
50m
50m
Tx2
R5
50m
R6
50m
Table 3.5-3
Calculation of the master-to-slave signal delays
Cable length masterslave transmitter [m]
Cable signal delay per
meter [ns/m]
Cable signal
delay [ns]
Signal delay slave
transmitter [ns]
50
5,6
50 x 5.6 = 280
33
Table 3.5-4
Master-to-slave signal
delay [ns]
280 + 33 = 313
Calculation of the delay switch positions of a system with two transmitters
Radiator
number
Transmitter
Master-toslave signal
Cable signal delay
per meter [ns/m]
Cable signal delay
[ns]
1
Master
0
168
0+168 = 168
593-168 = 425
425/33 = 12.88 = 13
2
Master
0
280
0+280 = 280
593-280 = 313
313/33 = 9.48 = 9
3
Master
0
112
0+112 = 112
593-112 = 481
481/33 = 14.58 = 15
4
Master
0
168
0+168 = 168
593-168 = 425
425/33 = 12.88 = 13
5
Master
0
280
0+280 = 280
593-280 = 313
313/33 = 9.48 = 9
6
Slave
313
168
313+168 = 481
593-481 = 112
112/33 = 3.39 = 3
7
Slave
313
280
313+280 = 593
593-593 = 0
8
Slave
313
112
313+112 = 425
593-425 = 168
168/33 = 5.09 = 5
9
Slave
313
168
313+168 = 481
593-481 = 112
112/33 = 3.39 = 3
10
Slave
313
280
313+280 = 593
593-593 = 0
Manual 01 18 05675
Signal delay
difference [ns]
Delay switch
position
0/33 = 0
0/33 = 0
19
Danish Interpretation Systems
User Manual
3.5.3 System with more than 4 carriers
and a radiator under a balcony
Figure 3.5-D illustrates a situation in which a
radiation signal delay occurs and which can be
compensated for. For systems with more than four
carriers, add one delay switch position per 10 meter
(33 feet) difference in signal path length to the
radiators which are closest to the overlapping
coverage area. In Figure 3.5-D the signal path
length difference is 12 meter. Add one delay switch
position to the calculated switch position(s) for the
radiator(s) under the balcony.
16m
3.6.2 Testing during a meeting
1. Set a receiver in the Test-mode and select the
highest available carrier. The quality of the
received carrier signal is indicated on the
display of the receiver (see section 6.3).
2. Test all positions and directions (see next
paragraph). The quality indication should be
between 00 and 39 (good reception).
3.6.3 Testing all positions and
directions
With the transmitter and receiver in one of the two
test modes, go around the conference hall and test
the reception quality at every position where the
infra-red signals must be received. When an area is
detected where there is bad reception or even no
reception at all, three main causes must be
considered:
4m
3.6.4 Bad coverage
Figure 3.5-D
Radiation path length difference for two radiators
3.6 Testing the coverage area
An extensive reception quality test must be done to
make sure that the whole area is covered with IR
radiation of adequate strength and that there are no
black spots. Such a test can be done in two ways:
3.6.1 Testing during installation
1.
Check that all radiators are connected and
powered up and that no loose cables are
connected to a radiator. Switch the transmitter
off and on to re-initialise the auto equalisation
of the radiators.
2. Set the transmitter in the Test-mode (see
section 4.5.7). For each channel, a different test
tone frequency will be transmitted.
3. Set a receiver on the highest available channel
and listen via the headphones to the
transmitted test tone.
4. Test all positions and directions (see next
paragraph).
20
The receiver cannot pick-up infra-red radiation of
adequate strength. This can be because the tested
position is outside the footprint of the installed
radiators or the radiation is blocked by obstacles
such as a column, an overhanging balcony or other
large objects.
Check that you used the correct footprints for the
system design, that radiators with enough output
power are installed and that a radiator is not
accidentally switched to half power operation. When
the bad reception is caused by a blocked radiation
path, try to remove the blocking obstacle or add an
extra radiator to cover the shaded area.
3.6.5 Black spots
The receiver picks-up IR signals from two radiators
which cancel out each other. The multipath effect
can be identified by the observation that the bad
reception only occurs along a specific line and/or
when good reception returns when the receiver is
rotated to another direction.
This can be confirmed by keeping the receiver in
the position and direction with the bad reception
and then either shading-off the radiation from one
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radiator with your hand or switching off one radiator.
If this improves the reception quality, then the
multipath effect is causing the problem. Note that IR
radiation that is reflected from a surface with a high
reflectabiliy can also cause multipath problems.
Black spots can occur in case a transmitter is
located in the same room as the radiators. In that
case, disable the mini IR radiator of the transmitter
with the configuration menu (see section 2.5.16).
Check that the signal delay compensation switches
on the radiators are set to the correct value and that
a switch is not accidentally positioned between two
numbers. Re-check your system design. When
necessary, reduce the distance between the two
radiators that cause the problem and/or add an
extra radiator. Note that due to the physical
characteristics of the signal distribution, it is not
always possible to completely avoid multi path
effects.
3.6.6 Interference from IR systems
IR assistive hearing systems and IR microphones
operating at frequencies above 2 MHz can disturb
the reception at the lowest carriers. If such is the
case, disable the lowest two carriers (see section
4.5.11) and re-check the reception.
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4 DT 6008 & DT 6032 Transmitters
Note: The mini IR-radiator and the headphone
output can also be permanently disabled by
removing two resistors
4.1 Description
The transmitter is the central element of the DCS
6000 Digital IR system. It accepts asymmetrical
audio sources from a maximum of 32 external
channels (dependent on the transmitter type) and
can be used with the DCS 6000 Digital Conference
System. It can also be used with analogue
discussion and interpretation systems (e.g. CIE
9000), or as a stand-alone system distributing
external audio sources.
The transmitter is suitable for either table-top or 19inch rack-mounted use. Four feet (for table top use)
and two mounting brackets (for rack mounting) are
supplied.
Figure 4.1-A
Back view of DT 6008 Transmitter
Figure 4.1-C
Back view of DT 6032 Transmitter
Front view of DT 6008 and DT 6032 Transmitter
1. Mains on/off switch – After switching the
mains on, the transmitter starts up and the
display (3) will light-up.
2. Mini IR-radiator – Four IREDs, transmitting the
same infra-red signal as the radiator output.
This can be used for monitoring purposes. They
can be disabled via the configuration menu.
3. Menu display – A 2x16 character LCD-display
gives information about the transmitter status. It
is also used as a an interactive display for
configuring the system.
4. Menu button – A turn-and-push button to
operate
the
configuration
software
in
combination with the display (3).
5. Monitoring headphone output – A 3.5 mm
(0.14 inch) jack socket to connect a headphone
for monitoring purposes. It can be disabled via
the configuration menu.
22
Figure 4.1-B
1. Mains input – Euro mains socket. The
transmitter has automatic mains voltage
selection. A mains cable is provided.
2. Emergency switch connector – A
terminal block socket for a single, ‘normally
open’ switch. When the switch is closed,
the audio signal on the Aux right input is
distributed on all output channels,
overriding all other audio inputs.
3. Auxiliary audio inputs – Two female XLR
connectors for extra audio inputs. They can
be used to connect auxiliary symmetrical
audio signals such as a music installation,
the
floor
language
or
emergency
messages.
4. Audio signal inputs – 8 or 32 cinch plugs
to connect external asymmetrical audio
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input signals. The number of connectors
depends on the transmitter type.
5. Radiator signal loop-through input – A
HF BNC connector to loop-through the
radiator output of another transmitter.
6. Radiator signal outputs – Six HF BNC
connectors, used to connect the radiators.
Up to 30 radiators can be loop-through
connected to each output.
4.2 Installation
Figure 4.3-A
The transmitter can be placed on a table or installed
in a standard 19” rack.
When installing in a 19” rack the supplied 19”
brackets shall be fixed to the front side of the
transmitter by unscrewing the crews holding the top
and button cover and then fix the brackets using the
same screws.
4.3 Connections
This chapter gives an overview of typical system
connections using the DT 60xx range transmitter:
Connecting the DCS 6000 Conference System
Connecting other external audio sources
Connecting an emergency signal switch
Connecting another transmitter
Connecting the DCS 6000 Conference System.
Please refer to the ‘AO 6008 User Manual’ for more
information.
4.3.2 Connecting other external audio
sources
The transmitter has up to 32 audio inputs
(depending on the transmitter type) to interface with
external asymmetrical audio sources, such as
congress systems from other manufacturers or for
music distribution.
The audio signals (stereo or mono) are connected
to the audio input cinch connectors.
4.3.1 Connecting the DCS 6000
Conference System
The transmitter is connected to DCS 6000
Conference System to an AO 6008 Audio Output
Unit. Each AO 6080 can feed up to 8 ‘Audio Signal
Inputs’ in the transmitter.
Figure 4.3-B
Connecting external audio sources to the
transmitter
4.3.3 Connecting an emergency signal
To use the emergency signal function, a switch
(normally-open) must be connected to the
emergency switch connector. The reaction of the
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Danish Interpretation Systems
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transmitter on a closed switch depends on the
configuration of the auxiliary inputs (see also
section 0):
If the auxiliary input is 'Mono + Emergency', the
audio signal on the Aux-Right input is
distributed to all output channels, overriding all
other audio inputs.
If the auxiliary input is 'Stereo' or 'Stereo to
Mono', the audio signals on the Aux-Left and
Aux-Right inputs are distributed to all output
channels, overriding all other audio inputs.
Figure 4.3-C
4.3.4 Connecting to another transmitter
The transmitter can be operated in slave mode to
loop through the IR radiator signals from a master
transmitter.
One of the six radiator outputs of the master
transmitter is connected with an RG59 cable to the
radiator signal loop-through input of the slave
transmitter.
The Transmission mode of the slave transmitter
must be set to ‘Slave’ (see section 4.5.7).
Connecting an emergency signal
Figure 4.3-D
24
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Connecting another transmitter
Danish Interpretation Systems
User Manual
4.4 Using the configuration menu
4.4.1 Overview
All configuration and operation options of the
transmitter are set via an interactive menu, using a
2x16 character LCD display and a ‘turn-and-push’
menu button.
Figure 4.4-A gives an overview of the menu
structure. A general description of how to use the
menu is given in section 4.4.2. Some examples are
given in section 4.4.3. The detailed descriptions of
all menu items can be found in section 4.5.
.
Transmitter
Status
0
Fault Status
1
4P Defaults
4O Unit Name
4N Headphone on/off
4M Mini Radiator on/off
4L Level Inputs
4K
3D FW Version
Monitoring
4J
2
3C FPGA Version
4I
4H
3B HW Version
Level Aux. Right
Level Aux. Left
Aux. Input Mode
Carrier Overview
4G Carrier Settings
3A Serial Number
Enquiry
4F
4E
3
Channel Names
Language List
4D Channel Quality
4C
4B
4A
Setup
Network Mode
Transmission Mode
4
<
Figure 4.4-A
Number of Channels
Back
Menu overview
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4.4.2 Navigate through the menu
changed by selecting a value from a list of available
values.
Operating the menu is always a sequence of
alternating turns and pushes:
To navigate through the Main menu:
Turn the button to:
Cycle through the menu items within a menu
(the menu item number and title on the first line
is blinking).
Go to a settable option within a menu item (a
blinking cursor moves through the menu
screen).
Cycle through the available values for a
settable option (the value is blinking).
Push the button to:
Turn the button to move through the Main menu
items. The item number and title starts blinking.
(The first item, Transmitter Status, doesn’t blink.)
To jump to a sub-menu:
1. Navigate in the Main menu to an item with three
dots (e.g. ‘Setup ...’).
2. Push the button to go to the sub menu. The
submenu item character and title starts blinking.
Note: To enter the Setup sub-menu, push and hold
the button for at least 3 seconds.
To navigate through a sub-menu:
Confirm a chosen menu item (the menu item
number and title stops blinking, a blinking
cursor appears).
Go to a sub-menu (the sub-menu
character starts blinking).
Confirm the selection of a settable option (the
cursor disappears, the option value starts
blinking).
3. Turn to select
character.
Confirm a selected value for a settable option
(the value stops blinking, the cursor appears
again).
To change option values:
item
After 3 minutes of inactivity, the display
automatically switches back to the first item of the
Main menu (Transmitter Status).
Each menu item is identified by a number (for the
Main menu) or by a number plus a character (for
the sub-menus). The item identification can be
found at the start of the first line and is used to
navigate to and from sub-menus.
Most menu items have one or more settable
configuration options. The value of an option can be
26
1. Turn the button to move the cursor to the
submenu item character.
2. Push the button. The item character and title
starts blinking.
another
sub-menu
item
4. Push to confirm the selection.
1. Navigate to the applicable menu item.
2. Turn the button to move the cursor to the option
value you want to change.
3. Push the button to activate the option. The
option value starts to blink.
4. Turn the button to select a new option value.
5. Push the button to confirm the new value. The
option value stops blinking.
6. Turn the button to move the cursor to another
settable option (when available) and repeat
steps 3 to 5.
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main menu
item number
User Manual
menu item title
sub-menu
item character
three dots indicate
that the item has a
sub-menu
4C Ch. Quality
Per Channel ...
Figure 4.4-B
4C Channel 12
Stereo PQ In 03
option values
Menu item screen elements
To jump back from a sub-menu to an item of the
Main menu:
To jump back from an item of the Main menu to
the Transmitter Status:
1. Turn the button to move the cursor to the Main
menu item number.
1. Turn the button to the < Back screen.
2. Push the button. The item number and title
starts blinking.
3. Turn to select another item number.
4. Push to confirm the selection.
When you are turning counter-clockwise through
submenu items, the display jumps automatically to
the Main menu after you have reached the first item
(A) of the sub-menu. Example:
4 C Nr. of Ch.
32 Channels
4 A Transmission
On
2. Push the button to go to the Transmitter Status.
4.4.3 Examples
Each step in the examples below shows the text on
the display and the action to go to the next step.
Bold text in italics (text) indicates that the text is
blinking. An underscore ( _ ) indicates the position
of the cursor. Each example starts at the
Transmitter Status screen.
4 Setup
Manual 01 18 05675
3 Enquiry
...
27
Danish Interpretation Systems
4.4.3.1
User Manual
Example 1: Disable carrier 2. (See also section 4.5.11).
Transmitter
32 Channels
1
Turn the button to
select the ‘Setup’
item (4) in the Main
menu.
4 Setup
2
4 A Transmission
On
3
Push and hold the
button for 3 sec. to go
to the ‘Setup’
submenu.
Turn to select the
‘C.Settings’ submenu item (4G).
4 G
C.Settings...
4
Push to go to the
‘C.Settings’ submenu.
4G Carrier 0
Enabled
5
Turn to select carrier
2.
4G Carrier 2
Enabled
6
9
Turn to select
‘Disabled’.
4G Carrier 2
Disabled
10
Push to confirm
4G Carrier 2
Disabled
11
4G Carrier 2
Disabled
12
Turn to move the
cursor to the Main
menu item number
(4).
Push to confirm.
4 Setup ...
13
Turn to select the <
Back screen
< Back ...
14
Push to confirm
Transmitter
32 Channels
15
Ready
Push to confirm.
4G Carrier 2
Enabled
7
Turn to move the
cursor
to the second line.
4G Carrier 2
Enabled
8
Push to confirm.
28
4G Carrier 2
Enabled
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4.4.3.2
User Manual
Example 2: Assign a user defined name to ch. 12. (See also section 0.)
Transmitter
32 Channels
1
Turn the button to
select the ‘Setup’
item (4) in the Main
menu.
4F Channel 12
• - - -
12
Push to confirm.
4 Setup
2
4 A Transmission
On
3
Push and hold the
button for 3 sec. to go
to the ‘Setup’
submenu.
Turn to select the
‘C.Settings’ submenu item (4G).
4F Channel 12
• - - -
13
Turn to select the first
character (C).
4F Channel 12
• C--
14
Push to confirm this
character.
4F Ch.Names ...
Floor
4
Push to go to the ‘Ch.
Names’ sub-menu.
4F Channel 12
• C--
15
Repeat steps 11 to
14 for the other
characters.
4F Channel 00
Spanish
5
Turn to select the
required channel
number (12).
4F Channel 12
• CD Music
16
Turn to move the
cursor to the Main
menu item number
(4).
4F Channel 12
Spanish
6
Push to confirm.
4F Channel 12
• CD Music
17
Push to confirm.
4F Channel 12
Spanish
7
Turn to move the
cursor to the start of
the second line.
4 Setup ...
18
Turn to select the <
Back screen
4G Carrier 12
Spanish
8
Push to confirm.
< Back ...
19
Push to confirm
4F Channel 12
Spanish
9
Turn clockwise until
channel name
changes to: • - - -
Transmitter
32 Channels
20
Ready
4F Channel 12
• - - -
10
Push to confirm.
4F Channel 12
• - - -
11
Turn to move the
cursor to the first
dash.
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4.4.3.3
User Manual
Example 3: Set channel 11 to transmit a Stereo signal in Premium Quality,
using audio inputs 14 (L) and 15 (R) as source. (See also section 4.5.9.)
Transmitter
32 Channels
1
4 Setup
2
4 A Transmission
On
3
4D Ch. Quality
All Mono SQ
4
Push to confirm.
4D Ch. Quality
All Mono SQ
5
Turn to move the
cursor to the option
on the second line.
4D Ch. Quality
6
Push to confirm.
7
Turn to select the
option value ‘Per
Channel ...’.
4D Ch. Quality
Per Channel ...
8
Push to go to the
‘Channel’ sub-menu
(4C).
4D Channel 00
9
Turn to select the
required channel
number (11).
10
Push to confirm.
11
Turn to move the
cursor to the quality
option.
12
Push to confirm.
Turn the button to
select the ‘Setup’
item (4) in the Main
menu.
Push and hold the
button for 3 sec. to go
to the ‘Setup’
submenu.
Turn to select the
Channel Quality’ submenu item (4D).
13
Turn to select the
required quality value
(Stereo PQ).
14
Push to confirm. *
15
Turn to move the
cursor to the input
number.
4D Channel 11
Stereo PQ In 12
16
Push to confirm.
4D Channel 11
17
Turn to select the
required input
number (14).
18
Push to confirm.
19
Turn to move the
cursor to the Main
menu item number
(4).
Push to confirm.
4D Channel 11
Mono SQ In 10
4D Channel 11
Stereo PQ In 10
4D Channel 11
Stereo PQ In 12
Stereo PQ In 12
4D Channel 11
Stereo PQ In 14
All Mono SQ
4D Channel 11
4D Ch. Quality
All Mono SQ
Mono SQ In 00
4D Channel 11
Stereo PQ In 14
4D Channel 11
20
Stereo PQ In 14
4 Setup ...
21
Turn to select the <
back screen
< Back ...
22
Push to confirm
Transmitter
32 Channels
23
Ready
Mono SQ In 00
4D Channel 11
Mono SQ In 10
4D Channel 11
Mono SQ In 10
30
* Note that after selecting ‘Stereo’ as input mode
(step 14) the input number changes automatically to
the next even number (12), which is the input
number of the left signal.
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4.5 Configuration and operation
The next sections give descriptions of the possible
configuration options. Each description is followed
by the relevant menu items with detailed
information per menu option.
The default values (see section ‘Reset all options to
factory defaults’) are indicated by an asterisk (*)
when applicable.
4.5.3 View transmitter status
The first screen of the Main menu gives information
about the present status of the transmitter. The
screen shows the name of the transmitter (1st line)
and the present transmission mode (2nd line). (See
section 4.5.7 to change the transmission mode).
Transmitter Status
4.5.1 Start-up
DT 6008
10 Channels
When the transmitter is switched on, the display
shows the Transmitter Status screen, which is the
first item of the Main menu.
The display also goes to this screen after 3 minutes
of inactivity. In case the system detects a fault, the
display shows a flashing fault message (see section
4.5.4).
4.5.2 Main menu
The main menu contains the screens to view the
transmitter status and the radiator fault status. It
also contains the entry points to the Monitoring,
Enquiry and Setup sub-menus.
Options
Description
Name
The first line shows the name of
the transmitter (see section
4.5.17 for changing).
Modes
The second line shows
actual transmission mode:
nn channels
Audio signals are distributed on
nn channels.
Aux to All
The signal on the Aux. inputs is
distributed on all channels.
nn Ch. Test
The test signals are distributed
on nn channels.
Slave
The transmitter operates in
slave-mode: the radiator signal
on the slave input is loopedthrough to all radiator outputs
the
Menu Item
Item Description
Transmitter
Status
Shows the transmitter status
(see section 4.5.3)
1 Fault Status
Shows the radiator fault status
(see section 4.5.4)
Standby
The transmitter is in stand by
mode (not transmitting).
2 Monitoring . . .
Go to the ‘Monitoring’ sub-menu
(see section 4.5.5)
Emergency Call
3 Enquiry . . .
Go to the ‘Enquiry’ sub-menu
(see section 0)
An emergency signal from the
Aux. inputs is distributed to all
channels.
4 Setup . . .
Go to the ‘Setup’ sub-menu (see
sections 4.5.7 and higher)
Note: To enter the Setup submenu, push and hold the button
for at least 3 seconds
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up. The flashing message will also disappear when
the fault has been resolved.
4.5.4 View fault status
The fault status of the radiators can be seen in the
second screen of the Main menu:
1 Fault Status
1 Fault Status
No Faults
Options
Description
No Faults
The connected radiators function
without problems.
Radiator Fault
One of the connected radiators
is not functioning properly.
No Radiators
No radiators are connected to
the transmitter.
.
When the system detects a failure for the first time,
a flashing fault message pops-up on any menu
screen:
Radiator Fault
or
No Radiators
or
No Network
or
Network Error
Push the menu button to remove the fault message
from the screen and to go back to the menu screen
that was visible before the fault message popped-
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4.5.5 Set monitoring options
The Monitoring sub-menu (2) is used to set which
signal is sent to the monitoring headphone output. It
can be one of the inputs, one of the channels or no
signal.
When the sensitivity of one of the inputs is being
changed in the Setup menu (4I, 4J or 4K), or when
assigning inputs to channels (menu 4C, Per
Channel), the monitoring output automatically
switches temporarily to that source, even when the
option ‘None’ has been chosen.
When the headphone output is disabled (see
section 4.5.16), the output level can not be changed
and the level indicator is not visible.
The ‘Source/volume’ screen also displays level
meters (two for a stereo source, one for a mono
source) for a visual indication of the actual signal
strength:
= low level
= high level
= overflow.
2 Monitoring
4.5.6 View version information
2 Monitoring
In. 04
-9 dB
Options
In. nn
Description
dd dB
The signal from audio input “nn”
is available on the monitoring
headphone output
Input nr. “nn”:
Volume: “dd” dB
Ch. nn
Aux.L
AuxR
dd dB
dd dB
dd dB
dd dB
3 Enquiry
3A Serial Number
FC.0.0012D
The signal on channel “nn” is
available on the monitoring
headphone output.
Options
Description
Channel nr. “nn”: {00 ... 31}
Volume: “dd” dB {-31 ... 0}
3A Serial
Number
Shows the serial number of the
transmitter board.
The signal on the Aux. Left input
is available on the monitoring
headphone output.
3B HW Version
Shows the version number of the
transmitter board.
Volume: “dd” dB
3C FPGA
Version
Shows the version number of the
FPGA software of the transmitter
board.
3D FW Version
Shows the version number of the
transmitter firmware.
{-31 ... 0}
The signal on the Aux. Right
input is available on the
monitoring headphone output.
Volume: “dd” dB
None
{00 ... 31}
{-31 ... 0}
In the Enquiry sub-menu (3), version information of
the transmitter can be found. This information
should be mentioned in service requests or failure
reports.
{-31 ... 0}
The monitoring headphone
output is switched off during
normal operation, but is active
when the sensitivity of one of the
inputs is being changed.
Volume: “dd” dB
{-31 ... 0}
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4.5.7 Set transmission mode
4.5.8 Set number of channels
The Transmission Mode menu item (4A) is used to
select which signals will be distributed over the
channels. It is also possible to switch all channels
off (Standby).
Via sub-menu item 4B the number of channels that
will be used can be set.
4 Setup/4A Transmission
Note that the maximum number of channels
depends on the transmitter type (8 or 32 channels)
and the chosen quality modes.
4 Setup/4B Nr. of Ch.
4A Transmission
ON
4A Nr. of Ch.
Manual: 08
Options
Description
Standby
All channels are switched off, no
signals are distributed.
On
Normal transmission. Input
signals are distributed on the
channels as set in the Channel
Quality sub-menu (4D).
Aux to All
The signals on the Auxiliary
inputs are distributed on one
carrier to all channels.
Test
Slave
34
A different test tone is distributed
on each channel. The frequency
increases with increasing
channel number. For stereo
channels the tone for left and
right will also be different.
The radiator signal on the slave
input is looped-through to all
radiators.
Options
Description
Automatic: nn
The number of used channels is
set automatically to the
maximum possible number of
channels depending on
transmitter type and the selected
quality modes).
Channels “nn”:
Manual:
nn
{1 ... 32}
Set the number of used channels
(the maximum number depends
on the transmitter type and the
selected quality modes).
Channels “nn”:
{1 ... 32}
An asterisk (*) is shown when the selected number
is not possible because it is higher than the
maximum number of channels.
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4.5.9 Set channel quality and assign
inputs to channels
The audio quality of the channels (mono/stereo,
standard/premium) can be set in sub-menu 4D. The
quality can be set the same for all channels or for
each channel separately. Note that choosing stereo
and/or premium quality uses more bandwidth and
decreases the number of available channels (see
section 3.2.4). In stereo mode, the left signal is
always an even numbered input. The next higher
input number is used for the right signal. When the
quality is set the same for all channels with the ‘All
Mono’ or ‘All Stereo’ options, the inputs are
assigned automatically to the channels as indicated
in the table below:
All Mono
4.5.9.1
Per Channel Settings
4 Setup/4C Ch. Quality
4C Channel 01
Mono SQ In 01
Options
Description
4C Channel nn
Select which channel to
configure.
Channel nr. “nn”: {00 ... 31}
Disabled
In nn
Input nr. “nn”:
Mono SQ In nn
All Stereo
Channel
Input
Channel
Input L
Input R
00
00
00
00
01
01
01
01
02
03
...
...
...
...
...
31
31
15
30
31
Disable selected channel.
{00 ... 31}
Set selected channel to mono,
standard quality.
Input nr. “nn”: {00 ... 31}
Select the audio input that
should be distributed on the
selected channel.
Mono PQ In nn
Set selected channel to mono,
premium quality.
Input nr. “nn”: {00 ... 31}
Select the audio input that
should be distributed on the
selected channel.
With menu option 4C (Per Channel Settings), the
assignment can also be done for each channel
separately.
Stereo SQ In nn
4 Setup/4C Ch. Quality
Input nr. “nn”: {00 ... 31}
4C Ch. Quality
All Mono SQ
Options
Description
All Mono SQ
Set all channels
standard quality.
to
mono,
All Mono PQ
Set all channels
premium quality.
to
mono,
Set all channels
standard quality.
to
All Stereo PQ
Set all channels
premium quality.
to
Per Channel . . .
Select this option to go to the
‘Per Channel Settings’ menu.
All Stereo SQ
Set selected channel to stereo,
standard quality.
Select the audio input that
should be distributed on the
selected channel. For stereo
signals, the input number of the
left signal (even number) should
be selected.
Stereo PQ In nn
stereo,
Set selected channel to stereo,
premium quality.
Input nr. “nn”: {00 ... 31}
stereo,
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Select the audio input that
should be distributed on the
selected channel. For stereo
signals, the input number of the
left signal (even number) should
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be selected.
names
added and chosen.
4.5.11 Disable or enable carriers
Note An asterisk (*) is shown behind the channel
number when the channel in the configured quality
does not fit on the available carriers (see section
3.2.4).
4.5.10 Set channel names
Each channel can be assigned a name via the
Channel Names menu (4E). This can be ‘Floor’ or
one of 30 pre-defined ISO language names. Also
up to 32 user-defined names can be added.
The language in which the pre-defined names are
presented can be chosen via the Language List
menu option (4D).
4 Setup/4D Language List
4D Language List
English
Normally the channels are automatically assigned
to the available carriers. However, when the
reception quality of a specific carrier is not good,
that carrier can be disabled manually. The channels
are then automatically re-assigned to the next
available carriers.
Each of the 8 carriers (0 to 7) can be disabled or
enabled in the Carrier Settings menu (4F).
4 Setup/4F C. Settings
4F Carrier 0
Enabled
Options
Description
4F Carrier n
Select which carrier to configure.
Carrier nr. “n”:
Options
Description
English
Present language list in English.
French
Present language list in French.
Original
Present each language name in
it’s original language (e.g.
English, Français, Deutsch, etc.).
Disabled
The selected carrier is disabled
(off).
Enabled
The selected carrier is enabled
(on).
4 Setup/4E Ch. Names
4E Channel 01
English
Options
Description
4E Channel nn
Select which channel to name.
Channel nr. “nn”: {00 ... 31}
‘Floor’
Use this name for the channel
that carries the ‘Floor’ language.
ISO language
names
Choose from pre-programmed
ISO language names.
User defined
Up to 32 userdefined names
(max. 12 characters) can be
36
{0 ... 8}
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4.5.12 View carrier assignments
With menu option 4H the carrier assignment can be
seen, i.e. which channels are transmitted on each
carrier.
Note that the number of channels that can be
distributed on one carrier depends on the chosen
quality mode.
Note that the Transmission mode must be set to
‘Aux to All’ (menu item 4A) to actually transmit this
stereo signal.
The ‘Stereo to Mono’ and ‘Mono+ Emergency’
options can be selected when the transmitter is
used in combination with an interpretation system.
The Aux. input(s) will be distributed to the
Symmetrical Audio Input.
4 Setup/4H Aux. Input
4 Setup/4G C. Overview
4H Aux. Input
Stereo
4G Carrier 0
Ch. 00 01 02 03
Options
Description
Options
Description
4H Carrier n
Select which carrier to view.
Stereo
The Aux. inputs will be
distributed in stereo to all
channels when the transmission
mode (menu item 1) is set to
‘Aux to All’.
Stereo to Mono
The Aux-L and Aux-R inputs are
combined into a mono signal and
distributed to the Symmetrical
Audio Input.
Mono +
Emergency
The Aux-L input is distributed to
the Symmetrical Audio Input and
Carrier nr. “n”:
Ch nn nn nn nn
{0 ... 8}
Shows the channel numbers that
are assigned to the selected
carrier. The symbol ‘- -’ is used
when less than 4 channels are
assigned.
Channel nr. “nn”: {00 ... 31}
If the channel number is
represented one time Mono SQ
is assigned to this carrier.
If the channel number is
represented two times Mono PQ
or Stereo SQ is assigned to this
carrier.
Interpreters
Module
(when
present). The Aux-R input is
distributed as emergency signal
to all channels when the
emergency switch is closed.
If the channel number is
represented four times Stereo
PQ is assigned to this carrier.
4.5.13 Configure auxiliary inputs
The way the signals on the auxiliary inputs (Aux-.L
and Aux.-R) are handled can be set in the Aux.
Input Mode menu (4H).
When the option ‘Stereo’ is chosen, the signals on
both Aux. inputs are distributed as a stereo signal to
all channels. This setting can for instance be used
to transmit a music signal during breaks in a
conference.
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4.5.14.1 Per Input Sensitivity settings
4.5.14 Set sensitivity of the inputs
The sensitivity of the audio and Aux. inputs can be
set in the Input Sensitivity menus (4I, 4J, 4K).
The sensitivity can be set the same for all audio
inputs (menu item 4K) or for each audio input
separately.
4 Setup/4I Level Aux. L
4I Level Aux.L
0 dB
4K Sens. Input 00
0 dB
Options
Description
4K Sens.Input
nn
Select which input to set.
xx db...
Select the required sensitivity.
Input nr. “nn”:
Description
xx db
Set the required sensitivity for
the left auxiliary input.
{-6 ... +6}
The sensitivity screens also display a level meter
for a visual indication of the actual signal strength:
= low level
= high level
4 Setup/4J Level Aux. R
= overflow.
4J Level Aux.R
0 dB
Options
Description
xx db
Set the required sensitivity for
the right auxiliary input.
Level “xx” dB:
{-6 ... +6}
4 Setup/4K Level Inputs
4K Level Inputs
All
-6 dB
Options
Description
All
Set the sensitivity of all audio
inputs to a user defined level.
xxdB
Level “xx” dB:
Per Input ...
38
{00 ... 31}
Level “xx” dB: {-6 ... +6}
Options
Level “xx” dB:
4 Setup/4K Level Inputs
{-6 ... +6}
Select this option to go to the
‘Per Input Sensitivity Settings’
menu.
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4.5.15 Enable / disable IR-monitoring
screen. The name can be edited in the Unit Name
menu (4N).
The mini IR-radiator at the front of the transmitter
can be used for monitoring the IR-signal.
4 Setup/4N Unit Name
When required (e.g. for security reasons) this option
can be switched off (menu 4L).
4 Setup/4L Mini Radiator
4L Mini Radiator
Enabled
Options
Description
Enabled
Disabled
Enable or disable the mini IRradiator at the front of the
transmitter.
4.5.16 Enable / disable headphone
output
The headphone output at the front of the transmitter
can be used for monitoring the input-and channel
signals.
When required (e.g. for security reasons) this option
can be switched off in menu item 4M.
4M Headphone
DT 6008
Options
Description
Free Text
Assign a user defined name to
the transmitter (max. 16
characters). The default name is
‘DT 6008’ or ‘DT 6032’
depending of the model.
4.5.18 Reset all options to factory
default values
Use menu item 4O to reset all options to the factory
defaults. The user defined transmitters name, the
user defined language names and the transmission
mode are not reset. (The default values are
indicated by an asterisk (*) in the menu
descriptions.)
4 Setup/4O Defaults
4O Reset to
defaults? No
4 Setup/4M Headphone
4m Headphone
Enabled
Options
Description
Enabled
Disabled
Enable or disable the headphone
output at the front of the
transmitter.
Options
Description
No
Cancel Reset.
Yes
Reset all options to the factory
default value.
4.5.17 Choose transmitter name
The user defined transmitters
name, the user defined language
names and the transmission
mode are not reset.
The transmitter can be assigned a user-defined
name. This name is used in the Transmitter Status
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5 Digital Radiators
5.1 Medium and High Power Radiators
5.1.1 Description
These units accept the carrier signals generated by
the transmitter and emit infra-red radiation carrying
up to 32 audio distribution channels. They are
connected to one or more of the six HF BNC
outputs of the IR transmitter.
1
A maximum of 30 radiators can be connected to
each of these outputs by means of loop through
connections. The RA 6013 has an infra-red output
of 16 Wpp, while the RA 6025 has an infra-red
output of 32 Wpp. Both have an automatic mains
power voltage selection and are switched on
automatically when the transmitter is switched on.
The attenuation of the signal by the cable is
equalised automatically by the radiator.
100-240 V
Loop - Through inputs
Do not
terminate
2
Output power
High
3
Low
Delay compensation
X10
4
X1
When the radiator is supplied with power and the
transmitter is switched on, the radiator initialises the
equalisation. The red LEDs flash for a brief period
of time to indicate that the initialisation is in
progress. When not receiving carrier waves, the
radiators switch to standby mode.
Figure 5.1-A
RA 6013 and RA 6025 back view
There is also a temperature protection mode which
automatically switches the radiators from full to half
power or from half power to stand-by if the
temperature of the IREDs becomes too high.
5 6
Figure 5.1-B
5 6
RA 6013 and RA 6025 front view
1. Mains input - Male Euro mains connector. The
radiators have automatic mains voltage
selection.
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2. IR signal input/loop-through - Two HF BNC
connectors for connecting the radiator to the
transmitter and for loop-through connection to
other radiators. Automatic cable termination is
achieved by a built-in switch in the BNC
connectors.
3. Output power selection switch - The
radiators can be switched between full- and
half-power operation.
4. Delay compensation switches - Two 10position switches to compensate for differences
in cable lengths to the radiators.
5. Amber indicator LEDs - Give an indication of
the radiator status.
6. Red indicator LEDs - Give an indication of the
radiator status.
Note: The indicator LEDs are positioned behind the
semi-transparent cover and are only visible when
ON.
5.1.2 Radiator status indication
A radiator consists of two IRED panels. Each IRED
panel has an amber and a red indicator LED (see
figure Figure 5.1-B) which show the status of the
radiator panel
Red LED
Amber LED
Status
on
off
Stand-by mode
off
on
Transmitting
flashing
on
At switch-on:
Initialising signal equalisation
During operation:
Temperature protection
mode.
See chapter 6,
Trouble-shooting
on
If IRED panel failure:
See chapter 6,
Trouble-shooting
5.1.3 Mounting the radiators
Radiators in permanent installations can be either
fixed to a wall, hung under a ceiling or balcony or
secured to any sturdy material, using the
suspension bracket supplied with the radiator. The
mounting angle can be adjusted for optimal
coverage.
For wall mounting a separate bracket is also
required. In non-permanent installations, a floor
stand can be used.
5.1.3.1
Attaching the suspension
bracket
First assemble the supplied suspension bracket and
connect it to the radiator (see Figure 5.1-C and
Figure 5.1-D).
This bracket is attached to the radiator by two bolts
with washers. There are corresponding holes on the
back of the radiators. There is also a spring-loaded
plunger (indicated by a black arrow in Figure 5.1-D),
located above the bolt hole on the right-hand arm of
the bracket, which is used for adjusting the angle of
the radiator (shown in inset in Figure 5.1-D). There
are corresponding holes on the back of the radiator
for accepting this plunger. The mounting angle can
be adjusted in steps of 15°.
Warning: Always ensure that natural airflow is not
obstructed by ceilings, walls etc. when determining
the position of the radiator. Leave plenty of space
around the radiator to prevent it becoming too hot.
Note: When in operation, the radiators may feel
warm to the touch. This is quite normal, and does
not indicate a radiator fault or malfunction.
Warning: When you install the radiator in a ceiling,
you must leave at least 1 m3 of free space around
the back of the radiator. To prevent the radiator
from becoming too hot, make sure that there is a
good airflow in this free space.
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plates, and is therefore compatible with most
standard floor stands.
For floor stands, the mounting angle can be set at
0°, 15° or 30°.
Figure 5.1-C
Attaching the plate to the suspension bracket
Figure 5.1-E
Figure 5.1-D
5.1.3.2
Attaching the suspension bracket to the radiator
Mounting on a floor stand
The top of the floor stand is screwed into the
suspension bracket (Figure 5.1-E). The bracket is
supplied with both metric and Whitworth threaded
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Attaching the stud of a floor stand to the
suspension bracket of the radiator
Danish Interpretation Systems
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Figure 5.1-G
Figure 5.1-F
5.1.3.3
WB 6000 wall mounting bracket showing
dimensions and drilling pattern
The radiator (plus suspension bracket) is attached
to the wall bracket by sliding the mounting bolt over
the slot on the wall bracket and then tightening it
(see Figure 5.1-I). A split pin is then inserted into a
small hole in the bolt to stop it from working loose
(see inset in Figure 5.1-I). The vertical angle of the
radiator can be adjusted between 0 and 90° in
steps of 15°. The horizontal orientation of the
radiator can be adjusted by loosening the bolt then
turning the radiator to the required position.
Attaching the radiator inclusive suspension
bracket and stud to the FS floor stand
Wall mounting
For wall mounting, the WB 6000 wall bracket is
required (must be ordered separately).
This bracket is attached to the wall by means of
four bolts (see Figure 5.1-H). Four holes of 10 mm
in diameter and 60 mm in depth must be drilled
using the drilling pattern (see Figure 5.1-G).
Note: The four bolts used to attach the bracket
must each be able to withstand a pull-out force of
200 kg (440 lb).
The bolts and plugs delivered with the WB 6000
wall bracket are only intended for mounting the unit
on a solid brick or concrete wall.
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5.1.3.4
Ceiling mounting
The radiators can be attached to the ceiling using
the supplied suspension bracket. This ensures
enough space for a proper air flow around the
radiator.
Mounting a radiator in the ceiling will in most cases
require a forced air flow by means of a ventilator to
prevent overheating.
5.1.3.5
Mounting on horizontal
surfaces
When the radiator has to be positioned a horizontal
surface (e.g. on top of an interpreter booth), the
distance between the radiator and the surface must
be at least 4 cm (1.5 inch) to enable enough air flow
around the radiator.
Figure 5.1-H
Attaching the wall mounting bracket to a wall
This can be achieved by using the suspension
bracket as a support. If this is not possible, switch
the radiator to half power. If the radiator is used at
full power on top of an interpreter booth, the
ambient temperature must not exceed 35° C.
5.1.4 Connecting radiators to the
transmitter
The transmitter has six BNC HF Output connectors
labelled 1, 2, 3, 4, 5 and 6 on the rear panel. All six
outputs are functionally identical. They can each
drive up to 30 radiators (RA 6013 and/or RA 6025)
in a loop-through configuration. The radiators are
connected with RG59 cables. The maximum cable
length per output is 900 m (2970 ft) to the last
radiator.
Automatic cable termination is achieved by a built-in
switch in the BNC connectors on the radiator.
Notes:
• For the automatic cable termination to work, never
leave an open-ended cable connected to the last
radiator in a loop-through chain.
• When connecting infra-red radiators, do not split
the cable, else the system will not function correctly.
Figure 5.1-I
44
Attaching the radiator to the wall mounting
bracket
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6 Digital Receivers
6.1 Description
The receivers are available for 4, 8 or 32 channels.
They can operate with a rechargeable NiMH battery
pack or with disposable batteries and have controls
for channel selection, volume adjustment and an
on/off push button. All receivers have a 3.5 mm
(0.14 inch) stereo jack output socket for mono or
stereo headphones.
An LCD display shows the channel number and
indicators for signal reception and low battery
power.
Charging circuitry is included in the receiver.
3. LCD Display - A two digit display showing the
selected channel. An antenna symbol is visible
when the receiver picks up an infra red signal of
adequate quality. A battery symbol is visible
when the battery pack or the batteries are
almost empty.
4. Volume control - A slider to adjust the volume.
5. Channel selector - An up/down switch to
select an audio channel. The channel number
is shown on the LCD display.
6. On/Off button - When a headphone is
connected, the receiver switches to Stand-by
state. Pressing the On/Off button switches the
receiver from Stand-by to On. To switch back to
Stand-by, press and hold the button for approx.
2 seconds. When the headphone is removed,
the receiver switches automatically to the Offstate.
7. Battery pack connector - This connection is
used to connect the battery pack to the
receiver. Charging is automatically disabled
when this connector is not used.
8. Charging contacts - Used in combination with
the charging equipment to recharge the battery
pack (if used).
9. Battery pack or disposable batteries - Either
a rechargeable BP 6001 NiMH battery pack or
two disposable AA-size 1.5 V batteries.
Note: When the receiver is not used, disconnect the
headphones. This ensures that the receiver is
totally switched-of and no energy is consumed from
the batteries or the battery pack.
6.2 Operation
Figure 6.1-A
Receiver, front view and back view
1. Charging indicator LED - Used in combination
with the charging equipment.
2. Headphone connector - A 3.5 mm (0.14 inch)
stereo jack output socket for the headphone,
with integrated Stand-by/Off-switch.
The receiver cannot operate when no headphone is
connected. After connecting the headphone the
receiver switches to stand-by mode. Push shortly
on the on/off button to switch the receiver on.
The channel number is shown on the LCD display.
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The channel can be changed with the channel
selector.
Push it to the up- or down-position to increase or
decrease the channel number. The highest channel
number is automatically matched to the number of
channels that has been set on the transmitter (see
section 4.5.8).
A battery symbol is visible on the display when the
batteries or the battery pack is almost empty.
An antenna symbol is visible when the receiver
picks up a modulated infra red signal of adequate
quality. During short interruptions in the reception,
the receiver mutes the headphones output. When
no adequate IR signal is detected for more than 1
minute (e.g. when a delegate leaves the conference
room), the receiver automatically switches to standby mode.
Note: Disposable batteries and battery packs at the
end of their technical lives should be discarded with
due care for the environment. When possible, take
batteries to a local recycling station.
6.3 Reception test mode
The receivers can be switched to a test-mode to get
an indication of the reception quality for each carrier
separately. To activate the test-mode: Push the
channel selector to the Up-position, press the on/off
button and hold both for ca. 2 seconds.
When in test-mode, switch between carriers by
using the channel selector. The receiver’s display
will shortly show the carrier number (0-7) and then
a quality indication (00-90).
The volume can be changed by moving the volume
control up or down.
Note: When the receiver does not receive the
selected carrier, it keeps displaying the carrier
number and does not display its quality.
The receiver can be manually switched to stand-by
mode by pressing the on/off button for more than 2
seconds.
The reception quality can be assessed as follows:
Indication
Quality
When the headphone is disconnected, the receiver
is automatically switched off. (A switch in the
headphone connector disconnects the batteries.)
00-39
Good reception.
quality.
40-49
Weak reception. Ticks in the audio.
The infra-red receivers can operate with disposable
batteries (2x AA-size alkaline cells) or with a
rechargeable battery pack (not available yet).
50-90
No or bad reception. Poor audio quality.
Insert the batteries or the battery pack in the
receiver with the correct polarity as indicated in the
battery compartment. The battery pack has a
separate connection cable which must be
connected to the receiver.
When this connection is not present, the charging
circuitry in the receiver will not work. This also
prevents the unwanted charging of disposable
batteries. The battery pack has a temperature
sensor which prevents overheating during charging.
46
Very
good
audio
The test mode is deactivated when the receiver is
switched off.
6.4 Receiver headphones
The headphones connect with the receivers via a
3.5 mm (0.14 inch) stereo jack connector. Suitable
headphone types are:
DH
6021
(recommended)
Any other compatible type
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7 CT 6056 Charging Tray
7.1 Description
7.2 Charging procedure
The charging tray can recharge up to 56 receivers
at once. The charging unit which is designed in a
suitcase for portable unit contains the power supply
with automatic mains voltage selection.
The charging electronics and a charging indicator
LED are included in each receiver. The charging
circuitry checks if a battery pack is present and
controls the charging process.
Note: The charging tray is only intended to charge
DR 60xx receivers with a BP 6001 battery pack.
You cannot charge other receiver types with the CT
6056 charging tray, nor can you use other charging
trays to charge DR 60xx receivers.
Ensure that the charging tray is connected to the
mains and that it is switched on. Place the receivers
firmly in the charging compartments. The charging
indicator LEDs on all receivers should illuminate.
These LEDs indicate the charging status of each
receiver:
LED colour
Green
Charging status
Charging completed.
Red
Charging in progress.
Red blinking
Error status. See chapter 6,
Trouble shooting
Off
Charger switched off or receiver
not properly inserted.
Notes
• It is preferred to switch on the charging unit before
inserting the receivers. Receivers can be inserted
or removed without damage while the charging unit
is switched on.
• Charge the battery pack to full capacity before
using them for the first time.
Figure 7.1-A
Charging Tray, front view.
1. Main Input -Male Euro mains socket. The
charging unit has automatic mains voltage
selection.
A mains cable is provided.
2. Mains on/off switch
3. Receiver positions - One charging unit can
charge up to 56 receivers simultaneously
• The charger always applies fast charge during the
first 10 minutes after inserting a receiver. Inserting
the receiver multiple times with a fully charged
battery pack should therefore be avoided, as this
will damage the battery pack.
• Continuously charging the receiver will not
damage the receiver or battery pack. Receivers can
therefore safely be left in their charging positions
when they are not used.
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Notes continued:
• When the rechargeable battery pack is used, it is
advisable to check regularly after three years that
the batteries are not leaking.
If there is any sign of leakage or corrosion, replace
the battery pack. Ensure that only the battery pack
BP 6001 is used.
The battery pack has to be replaced at least every
five years
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.
8 Troubleshooting
In this chapter a simple fault-finding guide is given.
This is intended to be used to remedy the
consequences of incorrect installation. If more
serious faults or problems arise the installer should
contact a qualified technician.
Transmitter display does not light up:
Check that the mains supply to the transmitter is connected and
that the transmitter is switched on.
Transmitter indicates “no radiators”:
Ensure that connections to all radiators have been made
correctly and that each radiator’s mains supply is connected
and switched on.
Transmitter indicates “radiator fault”:
Ensure that connections to all radiators have been made
correctly and that each radiator’s mains supply is connected
and switched on.
Examine the radiator LEDs.
Check that the emergency contact is connected correctly.
Check that the audio is connected according to the selected
auxiliary input mode (menu 4H).
Red LED flashes and amber LED is
on of one or both IRED panels of a
radiator:
IRED panel is in temperature protection mode. Check that the
natural airflow around that radiator is not obstructed. If not so,
replace the radiator.
Both red LED and amber LED are on
of one or both IRED panels of a
radiator:
IRED panel malfunctions and the radiator should be replaced.
Infra red receiver fails to function
properly:
If disposable batteries are used, check whether the batteries
have sufficient capacity and whether they are inserted with the
correct polarity.
If a battery pack is used, ensure that the battery pack is fully
charged.
Ensure that the headphone is connected properly.
Switch the receiver on and check whether the display indicates
a channel.
Ensure that the receiver picks up sufficient IR signal and check
whether the antenna symbol becomes visible.
Enable the mini radiator (menu 4L) and check the receiver by
holding it in front of the mini radiator of the transmitter.
Ensure that the volume control is turned up.
Set the transmitter in test mode and check whether the test
Emergency contact does not work:
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tone is audible on the receiver.
If the test tone is not audible, do the same test with other receivers.
If all receivers do not work properly at that spot, check the coverage
of the system (see section 3.6).
The charging indicator LED on the
receiver is blinking:
Check that the charging unit is used under the specified
working conditions (see technical data).
Check that the receiver contains a battery pack which is
connected correctly.
Ensure that the receiver is at room temperature and re-insert
the receiver in the charging unit.
If the charging indicator starts blinking again, replace the
battery pack and check whether the problem is resolved.
Receiver discharges very quickly:
Replace the battery pack and check whether the problem is
resolved.
Bad coverage:
Do the tests as described in section 3.6.
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9 Typical schematics
The following schematic is showing a typical application with various units in the DCS 6000 system:
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10 Technical Specifications
Temperature range
10.1 System Specification
Overall system characteristics
Conforms to IEC 60914, the international standard
for conference systems
Conforms to IEC 61603 part 7, the international
standard for digital infra-red transmission of audio
signals for conference and similar applications
- transport
-40 to +70 °C (-40 to 158
°F)
- operating
+5 to +45 °C (41 to 113 °F)
+5 to +55 °C (41 to 131 °F)
for DT 6008 & DT 6032
+5 to +35 °C (41 to 122 °F)
for BP 6001
Transmission Characteristics
Maximum relative humidity
..................................< 93%
IR transmission wavelength ................................870 nm
Safety
According to EN 60065,
CAN/CSA-E65
(Canada
and US) and UL 6500
Modulation frequency
Carriers 0 to 5: 2 to 6 Hz,
according to IEC 61603 part
7,
According to EN 60065,
CAN/CSA-E65
(Canada
and US) and UL 1419 for
RA 6013 & RA 6025
Carriers 6 and 7: up to 8
MHz
Protocol and modulation
DQPSK, according to IEC
technique 61603 part 7
EMC emission
According to harmonized
standard EN 55103-1 and
FCC
rules
part
15,
complying with the limits for
a class A digital devices
EMC immunity
According to harmonized
standard EN 55103-2
EMC approvals
Affixed with the CE mark
ESD
According to harmonized
standard EN 55103-2
Mains harmonics
According to harmonized
standard EN 55103-1
System Audio Performance
(Measured from the audio input of a transmitter to the
headphone output of a receiver.)
Audio frequency response
20 Hz to 10 kHz (-3 dB) at
Standard Quality
20 Hz to 20 kHz (-3 dB) at
Premium Quality
Total harmonic distortion at 1 kHz ...................... < 0.05%
Crosstalk attenuation at 1 kHz ..........................................
> 80 dB
Dynamic range
............................... > 80 dB
Weighted signal-to-noise ratio ..........................................
> 80 dB(A)
Environmental requirements Contains
no
banned
substances as specified in
UAT-0480/100 (e.g. no
cadmium or asbestos)
Cabling and System Limits
Cable type
.................... 75 Ohm RG59
Specifications are subject to change without
notice.
Maximum number of radiators ..........................................
30 per HF output
Maximum cable length
900 m (2,970 feet) per HF
output.
System Environmental Conditions
Working condition
52
............ Fixed, stationary or
transportable
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10.2 IR Transmitters System
Specification
10.2.1 DT 6008 and DT 6013 Infrared
Digital Transmitter
Physical Characteristics
Mounting
Brackets
mounting
for
19”
rack
Detachable feet for freestanding use on a table top
Dimensions
425 (483) x 87 x 317 (357)
mm (dimensions in brackets
are incl. the 19" mounting
brackets)
Weight
....................... 4 kg (8.0 lbs)
Finish
...........Black with silver front
Electrical Characteristics
Asymmetrical audio inputs
+3 dBV nominal, + 6 dBV
Maximal (+/- 6 dB)
Symmetrical audio inputs
+15 dBV nominal, + 18
dBV. Maximal (+/- 6 dB)
Emergency switch connector ...........................................
...... emergency control input
Headphone output
.............. 32 Ohm to 2 kOhm
HF input
Nominal 1 Vpp, minimum 10
mVpp, 75 Ohm
HF output
........1 Vpp, 6 VDC, 75 Ohm
Mains voltage
....100 to 240 V, 50 to 60 Hz
Power consumption maximal ...........................................
....................................55 W
Power consumption (standby) ..........................................
....................................29 W
Specifications are subject to change without
notice.
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Total optical peak intensity
12 W/sr (RA 6013), 24 W/sr
(RA 6025)
Angle of half intensity
................................. +/- 22°
HF input nominal
...... 1Vpp, minimal 10 mVpp
Mains voltage
..... 90 to 260 V, 50 to 60 Hz
Power consumption
............... 100 W (RA 6013),
10.3 Radiators and Accessories
10.3.1 RA 6013 Medium and RA 6025
High Power Radiators
Physical Characteristics
Mounting
................ 180 W (RA 6025)
Suspension bracket
direct ceiling mounting
for
Mounting plates for floor
stands with M10 and 1/2”
Whitworth thread
WB 6000 Wall Mounting
Bracket can be used for
fixing radiator to wall
surfaces
Dimensions (H x W x D)
Radiator angle
.................. 10 W (RA 6025)
Max. operation temperature 45 degrees ambient, normal
airflow
Temperature protection will
activate when the radiator is
used far above maximum
operating conditions.
RA 6013 without bracket:
200 x 500 x 175mm (7.9 x
19.7 x 6.9 in)
10.3.2 WB 6000 Wall Mounting Bracket
RA 6025 without bracket:
Physical characteristics:
300 x 500 x 175mm (11.0 x
19.7 x 6.9 in)
Dimensions
(H x W x D) 200 x 280 x 160
mm....... (7.9 x 11.0 x 6.3 in)
0, 15 and 30° for floor-stand
mounting
Weight
...................... 1.8 kg (4.0 lb)
Finish
......................... Quartz grey
0, 15, 30, 45, 60, 75 and
90°
for
wall/ceiling
mounting.
Weight
Power consumption (standby) ..........................................
................... 8 W (RA 6013),
RA 6013 without bracket:
Specifications are subject to change without
notice.
..................... 6.8 kg (15 lbs)
RA 6013 with bracket:
..................... 7.6 kg (17 lbs)
RA 6025 without bracket:
..................... 9.5 kg (21 lbs)
RA 6025 with bracket:
................... 10.3 kg (23 lbs)
....... Finish Bronze coloured
Electrical and Optical Characteristics
Number of IREDs
Total IR output at 20 °C
54
260 (RA 6013), 480 (RA 6025)
11 Wrms 22 Wpp (RA 6013),
21 Wrms 42 Wpp (RA 6025)
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10.5 Charging Trays
10.4 Receivers and Battery Packs
10.5.1 CT 6056 Charging Tray
10.4.1 DR 6004, DR 6008 & DR 6032
Digital IR Receivers
Physical Characteristics
Physical Characteristics
Dimensions
(H x W x D) 155 x 45 x 30
mm (6.1 x 1.8 x 1.2 in)
Dimensions (H x W x D):
........... 230 x 690 x 530 mm
(9 x 27 x 21 in)
Weight excl. batteries/battery pack ............. 75 g (0.16 lb)
Weight excl. receivers DR 60xx: .............. 15.5 kg (34 lbs)
Weight incl. battery pack
........................ 125 g (27 lb)
Weight incl. 56 receivers DR 60xx: .......... 22.3 kg (49 lbs)
Finish
............. Charcoal with silver
Finish
.............. Charcoal with grey
Electrical and Optical Characteristics
Electrical Characteristics
IR irradiance level
............4 mW/m2 per carrier
Mains voltage
..... 90 to 260 V, 50 to 60 Hz
Angle of half sensitivity
.................................. +/-50°
Power consumption
............270 W (56 receivers
charging)
Headphone output level at 2.4V 450 mVrms (speech at
max. volume, 32 Ohm
headphone)
Headphone output freq. range .........................................
...................20 Hz to 20 kHz
Power consumption (standby) ..........................................
...... 7 W (no receivers in the
charging Tray)
Specified lifetime:
Headphone output impedance .........................................
.............. 32 Ohm to 2 kOhm
Max. signal-to-noise ratio
.......................... > 80 dB(A)
Supply voltage
1.8 to 3.6 V, nominal 2.4 V
(battery voltage)
......Minimum 2 years or 500
cycles (under normal
conditions)
Specifications are subject to change without
notice.
Power consumption at 2.4 V 15 mA (speech at maximum
volume,
32
Ohm
headphone)
Power consumption (standby)...........................................
................................ < 1 mA
10.4.2 BP 6001 NiMH Battery Pack
Physical characteristics
Dimensions
(H x W x D) 14 x 28 x 49
mm (0.6 x 1.1 x 1.9 in)
Weight
....................... 50 g (0.11 lb)
Electrical characteristics
Voltage
....................................2.4 V
Capacity
............................1100 mAh
Specifications are subject to change without notice.
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10.6 Connection details
User Manual
Sleeve (3)
Electrical earth/screen
10.6.1 Mains cables
Blue
Neutral
Brown
Live
Green/Yellow Earth/Ground
10.6.4 Emergency switch
10.6.2 Audio cables
Terminal block
3-pole XLR connector (female)
Pin1
Earth
Pin 2
Signal +
Pin 3
Signal –
Connect the emergency switch to pin 1 and 2.
Specifications are subject to change without
notice.
Cinch (RCA phone) connector (male)
Pin 1
Signal +
Pin 2
Signal –
10.6.3 Earphones
3.5 mm Jack plug
Tip (1)
Signal left
Ring (2)
Signal Right
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WB 6000 Wall Mounting Bracket ...................14 09 04035
10.7 Accessories (to be ordered
separately)
FS 6000 Floor Stand......................................14 09 04045
Transportation Boxes
Box for DR 6004, 08 or 32 (for 50 pieces) .....14 10 58681
RG59 Connection Cables
EC 6100-02 RG59 Cable 2 m ....................... 10 02 13205
EC 6100-05 RG59 Cable 5 m ....................... 10 02 13505
EC 6100-10 RG59 Cable 10 m ..................... 10 02 14105
EC 6100-20 RG59 Cable 20 m ..................... 10 02 14205
EC 6100-50 RG59 Cable 50 m ..................... 10 02 14505
Box for one DT 6008 or DT 6032 ..................13 11 05527
Box for one RA 6013 .....................................14 09 05502
Box for one RA 6025 .....................................14 09 05503
Headphones
DH 6021 Stereo headphones .......................14 11 03055
Audio Cables
Cable – XLR to RCA phone .......................... 10 03 15001
Specifications are subject to change without notice
Brackets & Stands
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10.8 Guaranteed rectangular footprints
RA 6013 at full power
number
of
carriers
1
mounting
height
[m]
2.5
5
10
20
2
2.5
5
10
20
4
2.5
5
10
8
20
2.5
5
10
mounting
angle
[degrees]
0
15
30
45
60
90
15
30
45
60
90
30
45
60
90
15
15
30
45
60
90
30
45
60
90
60
90
15
15
30
45
60
45
60
90
90
15
15
30
45
60
90
60
90
area
A
[m2]
814
714
560
340
240
169
770
651
480
380
324
609
594
504
441
360
375
294
195
156
121
330
285
224
196
255
225
187
187
165
120
90
81
154
132
100
100
96
84
88
63
56
49
64
64
length
L
[m]
37
34
28
20
16
13
35
31
24
20
18
29
27
24
21
24
25
21
15
13
11
22
19
16
14
17
15
17
17
15
12
10
9
14
12
10
10
12
12
11
9
8
7
8
8
width
W
[m]
22
21
20
17
15
13
22
21
20
19
18
21
22
21
21
15
15
14
12
12
11
15
15
14
14
15
15
11
11
11
10
9
9
11
11
10
10
8
7
8
7
7
7
8
8
offset
X
[m]
8,5
8
5
2
-0,5
-6,5
10
6
2,5
-1,5
-9
12
6
0,5
-10,5
5
6
4
1,5
-1
-5,5
5,5
2,5
-1
-7
2,5
-7,5
4
5
3,5
1,5
-0,5
-4,5
3
0
-5
-5
3
4,5
3
1,5
-0,5
-3,5
1,5
-4
RA 6025 at full power
area
A
[m2]
1643
1440
1026
598
380
196
1519
1189
837
600
441
1364
1140
899
784
714
714
560
340
240
169
651
480
380
324
504
441
360
375
294
195
156
121
285
224
196
225
187
187
165
120
90
81
132
100
length
L
[m]
53
48
38
26
20
14
49
41
31
25
21
44
38
31
28
34
34
28
20
16
13
31
24
20
18
24
21
24
25
21
15
13
11
19
16
14
15
17
17
15
12
10
9
12
10
(The mounting height is the distance from the reception plane and not from the floor).
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width
W
[m]
31
30
27
23
19
14
31
29
27
24
21
31
30
29
28
21
21
20
17
15
13
21
20
19
18
21
21
15
15
14
13
12
11
15
14
14
15
11
11
11
10
9
9
11
10
offset
X
[m]
11,5
10,5
6,5
3
0
-7
12,5
8
3
-1
-10,5
11
4,5
-1,5
-14
7
8
5
2
-0,5
-6,5
6
2,5
-1,5
-9
0,5
-10,5
5
6
4
1,5
-1
-5,5
2,5
-1
-7
-7,5
4
5
3,5
1,5
-0,5
-4,5
0
-5