ENANCER Electrónica S.A.
Page 3 of 9
Rua Max Grundig 9
4705-820 Braga Portugal [email protected]
Tel: +351 253 221 484 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
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