Only Audio User manual

Audio
Installation Manual

ENANCER Electrónica S.A. Page 2 of 9
Rua Max Grundig 9
4 05-820 Braga Portugal [e-mail]
Tel: [phone] www.only-smartbuildings.com
Historical
Version Date Author Changes
1.0
2010
-
10
-
21
-
1.1 2015-05-14 Minor changes
1.2
2018
-
09
-
13
Branding actualization
Index
Historical…………………………………………………………………………………………………………………………………………………………………………………………………….. 2
Index…………………………………………………………………………………………………………………………………………………………………………………………………………….. 2
Introduction……………………………………………………………………………………………………………………………………………………………………………………………….. 3
Audio System……..…………………………………………………………………………………………………………………………………………………………………………………… 3
Cables….……………………………………………………………………………………………………………………………………………………………………………………… 3
Arquitecture of the Installation………………………….……………………………………………………………………………………………………………… 4
Connections and Protections…………………..………………………………………………………………………………………………………………………..5
Configuration…………………………………………………………………………………………………………………………………………………………………………….
Measurements and Troubleshooting…………………………………………………………………………………………………………………………………………….. 9

ENANCER Electrónica S.A. Page 3 of 9
Rua Max Grundig 9
4 05-820 Braga Portugal [e-mail]
Tel: [phone] www.only-smartbuildings.com
INTRODUCTION
This document is intended to orientate the work of the installer of the ONLY audio system on the site. The next
chapters explain how the installation should be made, the precautions to take and the way to test and configure
the system.
It is essential to respect it in order to achieve a proper and trouble-free installation.
AUDIO SYSTEM
The installation of an audio system is one of the most critical ones. Just a bad connection of a ground, an
inadequate cable or a bad choice of system architecture may compromise immediately the sound quality.
Please respect the contents of this manual in order to obtain the desired sound quality.
The ONLY audio system comprises audio units, touch panels with OLED display, amplifiers, power supply and
audio BUS driver with connections to the automation BUS.
The audio unit receives the 12V power from the D-PS12V15W installed in the switchboard and the audio BUS
that comes from the feeder D-BUSAUDIO.
Two audio inputs by 3.5mm jack or RCA connectors can be fixed on an OT-COVER panel, being then connected
by cable to the inputs IN1 and IN2 existing in the audio unit.
The unit C-FMBT-2Z has local FM RDS tuner, 2 stereo audio inputs, volume control for 2 separate zones,
Bluetooth, alarm clock and timer.
The amplifier is connected to the end of the output cable, near the speakers, and it is supplied by 230V~.
The unit C-FMBT-C has only one zone (OUT1), the output OUT2 is a line output. This output is intended to
distribute the sound for the remaining parts of the facility.
CABLES
All the cables of the audio system must be of the type LIYCY, i.e., shielded cables with a multi-wire shielding.
In a distributed sound installation, it is required that the power supply and BUS (12V, 0V, B) use a different LIYCI
cable of the one carrying the audio signals (L, R, GND). Just passing one of them by an external wire or in
another cable may cause noise in the installation.
The connection of the shielding to earth must also be carried out on one side of the cable. The shielding should
not be used as a conductor for the earth.
230V~
Source 1
Source 2
B-PA08M
B-PA08M
Audio BUS
Supply
+12,0,BUSA
L,R,0
L,R,0 L,0
R,0
B-PA04S

ENANCER Electrónica S.A. Page 4 of 9
Rua Max Grundig 9
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ARCHITECTURE OF THE INSTALLATION
Generally, an audio system pretends to distribute the sound of a local or central source to any part of the house.
The distribution of a source to the rest of the house is very critical from the standpoint of cable and noise which
can be “caught” by the sound installation.
Sound distribution in star form
The sound distribution of the central source to the other units must be done as a “star”, this means that
a cable must be connected from the source to each unit in the house, and never a cable connecting one
unit with the other and so on.
The previous rule is critical to avoid background noise. If not, the noise from the digital part of a unit will be
audible in the next unit, resulting in an annoying background noise in sound, even with the volume set to zero.
It is suggested therefore that not only the distribution of the sound signal, but also of the power and BUS is made
using the same architecture.
For the distribution of sound through the house it is necessary to understand that a sound source (e.g. CD player)
provides a certain electric current (I1) when connected to a sound unit.
So, if we increase the number of audio units connected to the same source, we are increasing the current we are
asking for at input. As the source has a certain impedance R, we have a voltage drop.
V = I x R
That is, if we have 3 audio units we have three times more loss at the source than if we had only one unit.
This loss is imperceptible for a few units (3 or 4), because normally the input impedance of the audio units is
much higher than the output impedance of the source (typically a ratio 1:10).
When more units are used, this loss causes distortion that starts to be audible in the sound.
This effect almost disappears if the output impedance of the source is very low. This lowering is achieved using
an intermediate unit equipped with a line buffer.
The good news is that all ONLY audio units are equipped with these line buffers, no matter if they are regulated or
line level.
In general, a normal audio source (e.g. CD player) can feed up to 4 ONLY audio units without significant quality
loss. For more than this, a C-FMBT-C unit should be used as a central, distributing its line output (OUT2) to the
other units in the facility. This way the central unit provides the selected audio source to the rest of the facility.
I1 I1 I1
3xI1
R
V
Central

ENANCER Electrónica S.A. Page 5 of 9
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CONNECTIONS AND PROTECTIONS
The ONLY audio units are fed from a 12V power source placed in the switchboard. The ONLY amplifier is
powered by 230V~, each having its own power supply.
It is suggested to use a circuit breaker for protection of the whole audio system.
Bedroom C Living room
NOTE: -ALL THE RED CABLES SHOULD BE OF THE TYPE LIYCY n X 0.5 mm
+12,0,BUSA
D-PS12V15W
L,N,B
6
A
Near the TV
Near the TV
D-BUS
AUDIO
TV
iPod
HiFi
TV
+12,0,BUSA
+12,0,BUSA
L2,R2,GND
L1’,R1’,GND
R2’,GND
L1,R1,GND
+12,0
L,N
B-PA08M B-PA08M B-PA08M B-PA08M B-PA08M
L2,R2,GND
L2,R2,GND

ENANCER Electrónica S.A. Page 6 of 9
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When there is audio on more than one floor, a circuit breaker should be provided in the switchboard to protect the
feeding of the amplifiers of the floor: one should never bring phase and neutral of the sound of the lower floor up
to this floor.
The units continue to receive the sound BUS at 12V from the downstairs floor.
The diagram of the switchboard is as follows:
Single-phase power supply Lighting 1 Lighting 2 Shutters ONLY security central ONLY climatization units ONLY BUS driver D-BUSDRV – 2 modules
D-FDRV
all sockets Cooker ashing Maching
32A
25A
25A
10A
10A
6A
6A
6A
6A
16A 16A 16A
6A
Amplifers ONLY Audio BUS driver ONLY D-
BUSAUDIO –2 modules
D-PS12V15
ONLY power supply D-PS12V15 – 5 modules Power supply 12V and audio BUS to ONLY audio units
D-BUS
AUDIO
6A 6A
AUDIO ONLY
LI
GHTING ONLY
N
N
RCCB
FROM RCCB
N
N
RCCB
TO OTHER
CIRCUITS W O ONLY
L N B B B
D-FDRV
B B B 0V 12V
AUDIO
D-BUSAUDIO
6A
LIGHT1
Autm.
L N B B B
N L
0V 12V
D-PS12V15W
AUDIO
BUS
POWER SUPPLY
AMPLIFIERS
Q
Q 0V 0V

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Each audio unit has the following connections:
CONFIGURATION
The ONLY audio units can be controlled by the automation buttons, commands from the remote controls, security
system or from computers or smart phones. The functions that can be controlled remotely are:
- switching on and off
- Volume control of zone 1
- Volume control of zone 2
- Input selection
- Preset selection
Pressing PROG on the audio unit repeatedly switches between the following possibilities:
P ON/OFF programming buttons to switch on, off, scenarios
P PRESET programming buttons to select presets
P VOL1 programming buttons for volume zone 1
P VOL2 programming buttons for volume zone 2
P INPUT programming buttons for input selection
Holding down the PROG key for more than 1 second changes the first letter P to E, allowing erasing instead of
programming.
We now present the procedures for the most common cases:
You wish to primarily control the volume of the other side of the bed, for example. For this, proceed as follows:
230V~
L R L R L R
0V B 12V GND L R
OUT2
IN2 IN1 OUT1
ZONE2
LIYCY LIYCY
LIYCY
LIYCY
LIYCY
+
–
N
L
B-PA08M
230V~
0V 12V
N L
D-PS12V15W D-BUSAUDIO
BUS Audio 0V 12V
L N BUSAutom
230V~
Automation
BUS
SOURCE 1
SOURCE 2
2xJACK 3.5mm
ZONE1

8
L/R
GND
AUDIO
IN
230V~
+
–
N
L
B-PA08M

8
L/R
GND
AUDIO
IN
230V~
+
N
L
B-PA04S

4
L
GND
AUDIO
IN
R
–
+
–

4


ENANCER Electrónica S.A. Page 8 of 9
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1. Choose the command ON/UP for the button that you want to turn up the volume and the command
OFF/DOWN for the button that you want to lower the volume.
2. Press repeatedly PROG until P VOL1 appears on the display (3 times).
3. Now press the button that you wish to lower the volume.
4. Press again repeatedly PROG until P VOL1 appears on the display (3 times).
5. Now press the button that you wish to turn up the volume.
Even with the unit off, pressing the button that is programmed to turn up the volume switches the unit on and the
volume is set to the last selected level before switching off. If you press the button to lower the volume and do not
stop before reaching volume 0, the unit is switched off.
To program buttons to control the audio unit in the bathroom (zone 2) proceed as follows:
1. Choose the command ON/UP for the button that you wish to turn up the volume and the command
OFF/DOWN for the button that you wish to lower the volume.
2. Press PROG repeatedly until P VOL2 appears on the display (4 times).
3. Now press the button that you wish to lower the volume.
4. Press again repeatedly PROG until P VOL2 appears on the display (4 times).
5. Now press the button that you wish to turn up the volume.
Also, in this case the unit switches the unit on and turns up the volume or lowers the volume and switches off
completely.
If you now wish to define a button to select a preset, proceed as follows:
1. Press PROG repeatedly until P PRESET appears on the display (2 times).
2. Now press the button you wish to use to select a preset.
In this case the command that the button sends is irrelevant.
If you now desire to define a button to select an input, proceed as follows:
1. Press PROG repeatedly until P INPUT appears on the display (5 times).
2. Now press the button you wish to select the input.
In this case the command that the button sends is also irrelevant.
If you wish to add an audio unit to the “coming home” scenario, proceed as follows:
1. Choose the command SCENARIO for the button you wish to control the “coming home” scenario.
2. Press PROG until P ON/OFF appears on the display (1 time).
3. Now press the scenario button.
4. Switch on the unit, select the desired preset or input and adjust the volume. If desired, you can also
switch on the sound in zone 2 by adjusting the respective volume.
5. Now, keep the scenario button pressed during more than 5 seconds: you will hear a long beep.
From now on, when pressing the scenario button, the preset, the input and the set volume is selected. Note that
you can also memorize the scenario with the unit switched off, switching the sound always off whenever the
button is pressed.

ENANCER Electrónica S.A. Page 9 of 9
Rua Max Grundig 9
4 05-820 Braga Portugal [e-mail]
Tel: [phone] www.only-smartbuildings.com
MEASUREMENTS AND TROUBLESHOOTING
Once all units have been installed and connected the system is ready to receive power supply.
The power supply line to the units must be 12V, as is the case for the BUS line.
If there is a buzz in the sound when the display of the unit is switched on, it is because the digital and analogue
grounds are connected: separate them and the noise disappears.
Clicks can appear in the sound when a shutter or light is switched on. To resolve this situation a filter in the
respective circuits should be used. Usually, an X2 capacitor 100nF mounted next to the load causing the noise
(e.g. lamp or shutter) should filter out the switching noise.