Zennio AudioInRoom ZMU-AUIR User manual

AudioInRoom
KNX controller for audio with Bluetooth
and auxiliary input –4 outputs
ZMU-AUIR
USER MANUAL
dsñkmfroi
Application Program Version: 1.0
User manual edition: [1.0]_a
www.zennio.com

AudioInRoom
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CONTENTS
Contents ........................................................................................................................................ 2
1. Introduction............................................................................................................................ 3
1.1 AudioInRoom ................................................................................................................... 3
1.2 Audio Playback System .................................................................................................... 4
1.3 Instalation ........................................................................................................................ 6
1.4 Bluetooth Connection ...................................................................................................... 8
1.4.1 Check-in / Check-out ................................................................................................. 8
1.4.2 Pairing........................................................................................................................ 8
1.5 Inicialization and power tension ...................................................................................... 9
2. Configuration........................................................................................................................ 10
2.1 General........................................................................................................................... 10
2.2 BLUETOOTH AUDIO MODULE ........................................................................................ 11
ANNEX I. Communication Objects............................................................................................... 18

AudioInRoom
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1. INTRODUCTION
1.1 AUDIOINROOM
AudioInRoom from Zennio is KNX interface capable of playing audio from an external
device, such as a smartphone, which is connected via Bluetooth or through an auxiliary
input (for example, for televisions).
The most notable features of this device are:
Audio Playback from an external user device.
Audio Available Controls:
➢Play/Stop.
➢Next track/Previous track.
➢Volume.
Bluetooth/Auxiliary Input audio source selector.
Bluetooth pairing with configurable password.
Ring tone.
2 independent stereo channels of audio output.
Heartbeat or periodic “still-alive” notification.

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1.2 AUDIO PLAYBACK SYSTEM
The following figure shows the main elements involved in the audio playback system
through AudioInRoom, either from an external Bluetooth source or from the Auxiliary
Input:
Figure 1. AudioInRoom playback system elements.
AudioInRoom: KNX system for audio playback from a device connected via
Bluetooth or through the auxiliary input. Allows Play/Stop, Next track/Previous
track and volume control through KNX bus.
Bluetooth Streaming: Bluetooth audio source linked to the KNX device by
means of a pairing with configurable password.
Auxiliary Input: AudioInRoom can also be connected to systems without
Bluetooth. This is possible thanks to the Auxiliary Input, using an analogue
audio connector (mini Jack) or a RCA connector. In these cases, the
playback control can only be carried out from the own user device audio
player.
external supply
24 VDC
KNX bus
Bluetooth
streaming
auxiliary input
audio outputs

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Audio Outputs: two independent channels with two connectors each for
speakers, which can be enabled or disabled individually. The audio output
signal from each channel can be configured to be played in stereo or mono
mode.

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1.3 INSTALATION
AudioInRoom is connected to the KNX bus through the built-in terminal (2). This device
requires an external 24V DC power supply (1).
Figure 2. AudioInRoom.
A short press in Programming Button (4) will make the device enter the programming
mode. The Programming LED (3) will then light in red. On the contrary, if this button is
held while the device gets connected to the bus, AudioInRoom will enter the safe
mode. In such case, the programming LED will blink in red colour.
Moreover, a 3 seconds press in Testing Button (8) turns the Bluetooth module on and
sets the device into pairing mode. The Testing LED (9) will light:
In blue when the Bluetooth module is on.
In green when pairing is active.
Flashes red in the absence of KNX bus voltage, blending with the other
colours if several notifications are made at the same time.
If a device without a Bluetooth module is to be connected, it must be connected via the
audio auxiliary input (6). Figure 3 shows the correct AudioInRoom auxiliary input
connection, depending on whether a Jack analogue audio connector or an RCA
connector is used:
1. 24VDC Power Supply.
2. KNX Connector.
3. Programming LED.
4. Programming Button.
5. Not used.
6. Audio Auxiliary Input.
7. Ventilation Grill.
8. Testing Button.
9. Testing LED.
10. Audio Output Channels.
44,25
144,26
22,71
3
2
5
3
6
1
4
7
8
9
10
1
2
3
4
5
6
7
8
9
10

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Figure 3. Auxiliary Input: Jack connector (left) and RCA connector (right).
Once the AudioInRoom is connected to an audio source, the processed audio output
will take place through the audio output channels (10). Two independent channels
with two connectors each for the speakers are available.
The following figure shows how to connect the audio output channels:
Figure 4. Audio Output Channels.
For detailed information about the technical features of the device and for safety
instructions or about the installation process, please refer to the corresponding
Datasheet, bundled with the original package of the device and also available at
www.zennio.com.

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1.4 BLUETOOTH CONNECTION
AudioInRoom connection with an audio source device through the Bluetooth module is
a simple procedure that maintains connection security at all times when carried out
using a configurable password.
1.4.1 CHECK-IN / CHECK-OUT
The' Check-in' process represents the arrival of a new user to the room and establishes
a new identifier name for the AudioInRoom and a new password or PIN to link to it.
These two values are set by communication object.
Instead, the Check-out process resets the name and password to the default
(parameter) settings. In addition, the list of devices linked to AudioInRoom is deleted,
so that any user who wants to reconnect to AudioInRoom must repeat the pairing
process.
1.4.2 PAIRING
The pairing process is initiated in AudioInRoom by sending the order via the
corresponding communication object or by pressing (more than three seconds) the test
button.
Once the pairing mode is activated, the AudioInRoom will remain visible via Bluetooth
for approximately 30 seconds. It can be identified by the name established in the
Check-In process or by the name established by parameter in ETS.
When selecting the desired AudioInRoom to connect to, the pairing PIN is requested.
This PIN, again, may be the one established in the Check-in process or the one
established by parameter in ETS.
After entering the PIN, the audio source device and AudioInRoom will be paired and
connected:
Connected Device: the device has already been paired through the security
PIN and it is connected to AudioInRoom. At this point the sound from the
device will be heard through the speakers connected to the AudioInRoom
audio output channels. In addition, playback and volume controls can be used
from the AudioInRoom

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Paired Device: the device has already been paired through the security PIN.
However, the audio-multimedia connection has been disabled. AudioInRoom
does not allow the user to play music in this state.
AudioInRoom allows up to two devices paired and connected, so that audio can be
played from any of them, although, logically, not at the same time.
If a third device is paired, one of the two previous devices will be deleted, which means
that it will have to be paired again if it wants to reconnect.
1.5 INICIALIZATION AND POWER TENSION
After a programming, a Check-out procedure is executed, which will also update the
Bluetooth module with PIN and device name values set by parameter.
With a power failure, the Bluetooth connection gets lost. This causes the source device
playback gets stopped. AudioInRoom has been designed so that audio source
playback can be recovered in a known status.
On the other hand, a KNX bus power failure does not imply any change in the
device status since it has external power supply. The Testing LED will red flashing
for information.

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2. CONFIGURATION
After importing the corresponding database in ETS and adding the device into the
topology of the desired project, the configuration process begins by entering
Parameters screen.
2.1 GENERAL
From this screen the two main functions of AudioInRoom, Heartbeat and Bluetooth
Module, can be enabled.
ETS PARAMETERISATION
The configurable parameters on the General screen are the following:
Figure 5. General Configuration.
Heartbeat (Periodic Alive Notification) [disabled/enabled]
1
: incorporates a
one-bit object to the project (“[Heartbeat] Object to Send ‘1’”) that will be
sent periodically with a value of “1” to notify that the device is still working (still
alive).
Figure 6. Heartbeat (Periodic Alive Notification).
1
The default values of each parameter will be highlighted in blue in this document, as follows:
[default/rest of options].