Opus DCL20-K1 User manual
Installation and usermanual
DCL20-K1
EN
Hearing loopamplifier
Kit–Proximity amplifier
English
2
Manual
1. Introduction............................................................................................................3
1.1 Purpose ...............................................................................................................3
1.2 Targeted audience..............................................................................................3
1.3 Alert ...................................................................................................................3
1.4 Icons....................................................................................................................3
1.4.1 Icons et notes ...................................................................................................3
1.4.2 Attention, warning and danger incons............................................................3
1.5 Conversion tables ..............................................................................................4
2. Description............................................................................................................5
2.1 The range ...........................................................................................................5
2.2 Contents..............................................................................................................5
2.3 DLC20-K1..........................................................................................................5
3. Installation ............................................................................................................6
4. Connections and settings.....................................................................................8
5. Explication.............................................................................................................9
6. Safety note...............................................................................................................9
7. Specifications ......................................................................................................10
DCL20-K1 | Installation and user manual |
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1. Introduction
1.1Purpose
The Installation and Operation Manual provides
the necessary information for installing, configu-
ring and using an DCL10-K1kit.
1.2 Targetedaudience
The Installation and Operation Manual is in-
tended for installers and users of the DCL20-
K1 kit.
1.3Alerts
This manual discusses four types ofalerts.
The type of alert is closely related to the effect
that may occur if the alert is not observed.
These alerts, ranked in ascending order of seve-
rity, are the following:
•Note
Additional information. Generally, the non-
observance of a Note type alert does notresult
in any material or bodilyinjury.
•Attention
Failure to observe a caution alert may resultin
property damage.
•Warning
Non-compliance with a type alert Warning may
result in serious personal injury and property
damage.
•Danger
Failure to observe a danger alert may resultin
death.
1.4Icons
1.4.1 Icons andnotes
Icons used with notes provide additionalinfor-
mation about it. See the following examples:
1.4.2 Attention, warning and danger
icons
The icons used in combination with Attention,
Warning and Danger indicate the type of risk
present. See the followingexamples:
Note:
General icon of notes
Note:
Symbol referring to thesource
indicated information.
Attention, warning,danger:
Electrocution risk icon.
Attention, warning, danger:
the general icon of precautionarystate-
ments,
Attention, warning, danger:
Electrostatic discharge riskicon.
DCL20-K1 | Installation and user manual |
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1.5 Conversiontables
In this manual, SI units are used to expressleng-
ths, masses, temperaturesetc.
These can be converted to non-metric units
using the followinginformation.
Table 1: lenght unitsconversion
Table 2: Mass unitsconversion
Table 3: Pressure units conversion
Table 4: temperature unitsconversion
25,40 mm = 25,4
mm
1 mm =
1,00000
25,40
mm = 2,54 cm
1 cm = 0,3937
po
30,48 cm = 0,3048
m
1 m = 3,281 pd
1 ml = 1,609
km
1 km = 0,622
ml
1 lb = 0,4536
kg
1 kg = 2,2046
lb
1 psi = 68,95
hPa
1 hPa = 0,0145
psi
Note:
1 hPa = 1mbar
°
F = 9 /5. ( °C + 32
°
C = 5 /9. ( °F32)
DCL20-K1 | Installation and user manual |
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2. Description
The DLC20-K1 kit is the ideal equipment for coun-
ters or reception desks allowing audio accessibi-
lity for people with hearing loss. This product is
for all Public-facing establishment. It has the
advantage of being one of the most compact and
discreet of the market allowing optimal
integration results. It offers especially a peren-
nial installation.
2.1 Therange
We are pleased to introduce our new brand
Opus Technologies designed and manufactured
in France. We propose innovative products offe-
ring maximum comfort for the users.
2.2 Contents
This kit includes:
A DLC20 amplifier
A power supply
A power cord
A gooseneck micro
A 1,80m loop cable
Three 2-pointconnectors
One 3-pointconnectors
A set of 2 stickers « space adaptedfor
hearing impaired».
2.3DCL20-K1
The DCL20-K1 is an induction loop kit that can be
used to equip counters or reception desks. The
system allows to meet the restrictions of the law
of european equal treatment directives while
respecting the requirements of EN60118-4. The
set is designed to offer accessibility to hearing-
impaired equipped with a T-position on their
hearing aid.
The amplifier is designed to be discreetly
attached under a desk or counter. It is equipped
with two inputs, settings and LEDs indicating the
presence of power supply and loopcurrent.
The device incorporates an audio processing to
have an automatic control of the sound levels,
avoiding loud and suddennoises.
DCL20-K1 | Installation and user manual |
DCL20-K1 | Installation and user manual | 7
3.Installation
3.1 Composition and assembly ofthe
loop
The loop consists on the following 3 elements: a
loop cable, a loop adapter and a connecting
cable.
The loop is ready but it is possible to disas-
semble it to adapt it to the reception desk. See
below.
To disassemble the loop that will equip the
counter, first unscrew the support of the elec-
tronic card.
Connect the beginning and the end of theloop
cable to the circuit board (redconnector).
Then plug the 50-70 cm connecting cable sup-
plied to the "amplifier" connector of the adap-
ter and to the "Loop" terminal block of the am-
plifier.
Your loop is now created andconnected.
3.2 Installation of the loop in the coun-
ter
1. There are 2 possibilities to place a loop in a
counter as described below, however we strongly
advise you to use the first version:Place the loop
on the vertical and horizontal portion of the
counter as shown in figure 1. This type of
installation ensures better coverage in front of
the counter.
Figure1.
Note:
The wire supplied in the DLC20-K1
kit ensures the quick installation of a
magnetic loop system in a reception
desk, counter or cash desk.
In order to optimize the radiation of the magnetic
field and to guarantee a better result, the wire
should be placed close to thecustomer.
Loop amplifier
8
Figure2.
2.Position the loop on the horizontal counter- top
by positionning the cable closest to the cus-
tomer.
3.Install the loop on the vertical countertop by
positioning the cable closest to the customer.
Set the loop using the binding clips supplied for
this purpose. For better durability, it may be ap-
propriate to install the loop in a plasticchute.
Then connect the connecting cable to the termi-
nal block "amplifier" of the connector on the
terminal block "loop" of theamplifier.
Screw the connector on the cross.
Attention, warning, danger:
The loop must not be positioned
under a metal structure. The ma-
gnetic field would be absorbed by
the metal mass and would not equip
the counter properly. There are
other solutions for installing a loop in a metal
counter (see figure 3)
For greater coverage around the counter, it is
possible to install a cable on the floor. The loop
can be placed in the slab (over the wire mesh),
under a coating (parquet, carpet, ... etc) using a
copper tape or glued under a carpet as shown in
figure 3 .
Figure3.
The wire supplied in the DCL20-K1 kit produces a
magnetic field radiating on a perimeter of 1.2m
which allows a people to receive the signal com-
fortably.
Figure4.
amplifier
The pictogram with an integrated loop can be
fixed on the desk and turned to the customer’s
side to avoid disturbances due to metal (see Fi-
gure 4).
Loop amplifier
Loop1
Loop2
Loop amplifier
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4. Connections andsettings
4.1 audioconnection
To connect the supplied microphone with the kit,
insert the 3.5 jack into the microphone input 1.
Connecting to an intercom or specific source:
Connect your source to input 2 of the DCL20.
This input supports the following sources: line,
low impedance and 100V with anadapter.
Micro input1:
Type : Jack3,5
Feature: phantompower
Input ligne 1:
Type: Terminal Block
Input type: Line or microphone, screwconnec-
tion.
Input 2:
Type: Terminal Block
Input type: Line /low impedance/ 100V withan
adapter.
4.2 Loop and powerconnection
Connect the loop cable to the "Loop" input on
the DCL20.
Power supply: Connect the power supply from
the kit to the "Power supply"input.
micro / Ligne /Mass
Ligne / Mass
Jack3,5
Note:
Loop input does not impose any sense
of connection
AC /DCconnector
5 x 2,1mm
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5. Explication
The wire forming the loop are connected to an
audio amplifier. The hearing aid often called "T"
or "T-coil" which is placed inside spirale wire.
The magnetic field generated by the large loop
will cross the coil and, by the induction process,
the electrical signal present in the large loop will
be found in the one small. The signal of the au-
dio amplifier is transmitted to the hearing aids,
which will then restore it to the ear of the im-
paired ones.
The loop can be installed in the floor or at the
roof level, more precisely between 1.10m and
2.20m from the listening height(ears).
The presence of an hearing loop is often indi-
cated by a blue logo representing a crossed out
ear and a letter T. Generally, a hearing aid has
two major positions, the M and the T. The posi-
tion M makes it possible to perceive the sound
thanks to sound pressure as a microphone, while
the position T (T for telephone) directly receives
the audio signals transmitted by induc- tion via
the integrated coil. Some aids combine these two
modes of operation with the MT posi- tion. It
allows the hearing impaired to perceive both
ambient noise and inductively transmitted
signals.
DCL20-K1 | Installation and user manual |
6. Safety notes
The majority of problems with the hearing loop
loop happens when the installation has not been
properly reflected so let's take a while be- fore
starting the installation to better results and time
saving.
Ideally, the loop amplifier should be placed near
the area to be covered. This may involve placing
the amplifier on a panel, under a desk or under a
table.
The pickup microphone should be as close as
possible to the input of theamplifier.
To position the loop in the space to be
equipped, it is important to take into account the
final users of the system.
For example, if the place is planned for a con-
versation between a speaker and a client, a loop
around the desk may be a better solution rather
than a loop around the perimeter of the room. It
will limit radiation and increase confidentiali- ty.
11
7.Specifications
Inputs
Audio
inputs 2 (1 microphone orline
input and 1 lineinput)
Type
Micro Jack 3.5,Phoenix
terminal block
Phantom
4,5V 1mA
Power
supply
Characteristics
12V DC 1,5A
Type
Separate power box
Voltage
230V 50/60 Hz
Power
20W max
Fuse
Thermal
Audio
Processor
Compressor
Variable 1: 1 to 20: 1
Attack
10mS
Descent
Automatic 500mSou
1500mS
Noise
reduction Bandwidth Limits for 8
KHz at Total Gain,
16KHz
to -6dB
Dynamic
>60dB
THD
THD+N<0,5% à 1KHz
Output
Type
Current
Loop
resistance 0,5 Ohm à 1 Ohm
Peak
current 4A
Current
RMS 2A à 1 KHz
Protection
Thermal, short circuit
and
start
Dimensions
andweight
(in
mm)
DCL20
92 x 52 x 18 (L x H xP)
Packaging
190 x 190 x50
Weight
0.350g
DCL20-K1 | Installation and user manual |
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Notes:
DCL20-K1 | Installation and user manual |
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