AUDAC R2 User manual

R2
User Manual
www.audac.eu

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3
Index
Introduction 5
Precautions 6
Safety requirements 6
Caution servicing 6
EC Declaration of Conformity 6
Waste of Electrical and Electronic Equipment 7
Caution symbols 7
Additional information 7
Chapter 1: Connections and connectors 9
Connection standards 9
Wire up the system 11
Chapter 2: Overview front and rear panel 12
Front description 12
Rear description 13
Audio in- and outputs 13
Priority & Fiber link inputs 13
Peripheral interfaces 14
Control ports & Power inlet 14
Chapter 3: R2 Quick Start Guide 15
Connecting the R2 15
Configuring the R2 16
Chapter 4: User interface & configuration 18
Open the user interface 18
Login screen 18
Main screen 19
Zone settings 20
Sound settings 22
Test signals 23
Zone linking 24
Input selection 25
Configuration settings screen 26
Timer settings 27
Time settings 28
Network settings 29
Paging settings 29
Priority settings 30
System configuration 31
R2 Address settings 32
Fiber settings 33
Amplifier bridging 34
Password settings 35
Factory settings 36

4
Chapter 5: Peripheral interfaces 37
Wall mounted control panels 38
DW3020/4020 Basic wall panel 39
DW5066 All-in-one wall panel 40
Connection possibilities 42
Chapter 6: Paging 43
Chapter 7: Cascading the R2 48
Principle 48
Fiber audio flow 49
Setting up the project 51
Chapter 8: Additional information 55
IP Basics 55
Updating the R2 56
Technical specifications 57
Personal notes 58

5
Introduction
Multi-Zone Audio Matrix System
The R2 is a Multi-Zone audio distribution system which is a truly polyvalent solution for
commercial and residential applications, with the flexibility of a multizone router. It delivers
a comprehensive and expandable powerful solution for nearly every situation. With its
large number of extension modules and configuration modes, it provides a solution for an
uncountable amount of installations – large or small, simple or complex.
It is standard equipped with 8 analog line inputs and 8 analog line outputs, but the flexible
structure of the device makes it easy to extend this number to an appropriate solution for
each specific situation.
If desired, it is easy to cascade multiple R2’s with the fiber interconnection modules. This
makes it possible to transfer up to 8 stereo channels and to extend to an nearly unlimited
number of zones.
But it is much more than that, due to the extremely powerful DSP processor, it provides
greater flexibility, higher reliability and lower latency than any other amplifier of its kind.
Moreover, it ’s capable of doing complex calculations on the digital audio signals, which makes
it possible to integrate digital filters into the system and generate complex audio signals.
Every R2 is standard equipped with an integrated Ethernet control interface which makes it
possible to configure and control the R2 from any PC, laptop or PDA which is connected to
the internet. Just use your browser, go to the appropriate website and you have complete
control of the R2.
An optional touchscreen can be installed in the front of the amplifier and there are optional
wall control panels whereby the desired music source and volume can be selected for a
specific zone.
A RS232 interface is provided for configuration and control with peripherals from other
manufacturers which make use of an RS232 connection, like AMX, Crestron,… the control
commands are freely available which makes it easy to develop specific applications that
work in combination with the R2.

6
Precautions
READ FOLLOWING INSTRUCTIONS FOR YOUR OWN SAFETY
ALWAYS KEEP THESE INSTRUCTIONS. NEVER THROW THEM AWAY
ALWAYS HANDLE THIS UNIT WITH CARE
HEED ALL WARNINGS
FOLLOW ALL INSTRUCTIONS
NEVER EXPOSE THIS EQUIPMENT TO RAIN, MOISTURE, ANY DRIPPING OR SPLASHING
LIQUID. AND NEVER PLACE AN OBJECT FILLED WITH LIQUID ON TOP OF THIS DEVICE.
DO NOT INSTALL THIS UNIT NEAR ANY HEAT SOURCES SUCH AS RADIATORS OR
OTHER APPARATUS THAT PRODUCE HEAT
DO NOT PLACE THIS UNIT IN ENVIRONMENTS WHICH CONTAIN HIGH LEVELS OF DUST,
HEAT, MOISTURE OR VIBRATION
THIS UNIT IS DEVELOPED FOR INDOOR USE ONLY. DO NOT USE IT OUTDOORS
PLACE THE UNIT ON A STABLE BASE OR MOUNT IT IN A STABLE RACK
ONLY USE ATTACHMENTS & ACCESSORIES SPECIFIED BY THE MANUFACTURER
UNPLUG THIS APPARATUS DURING LIGHTNING STORMS OR WHEN UNUSED FOR LONG
PERIODS OF TIME
ONLY CONNECT THIS UNIT TO A MAINS SOCKET OUTLET WITH PROTECTIVE
EARTHING CONNECTION
EC DECLARATION OF CONFORMITY
This product conforms to all the essential requirements and further
relevant specifications described in following directives: 2004/108/EC
(EMC) and 2006/95/EC (LVD)
CAUTION - SERVICING
This product contains no user serviceable parts. Refer all servicing to
qualified service personnel. Do not perform any servicing (unless you
are qualified to)

7
CAUTION
The symbols shown are internationally recognized symbols that warn about potentional
hazards of electrical products. The lightning flash with arrowpoint in an equilateral triangle
means that the unit contains dangerous voltages. The exclamation point in an equilateral
triangle indicates that it is necessary for the user to refer to the users manual.
These symbols warn that there are no user serviceable parts inside the unit. Do not open the
unit. Do not attempt to service the unit yourself. Refer all servicing to qualified personnel.
Opening the chassis for any reason will void the manufacturer’s warranty. Do not get the
unit wet. If liquid is spilled on the unit, shut it off immediately and take it to a dealer for
service. Disconnect the unit during storms to prevent damage.
WASTE ELECTRICAL AND ELECTRONIC EQUIPMENT (WEEE)
The WEEE marking indicates that this product should not be disposed
with regular household waste at the end of its working life. This
regulation is created to prevent any possible harm to the environment
or human health.
This product is developed and manufactured with high quality materials
and components which can be recycled and/or reused. Please dispose
of this product at your local collection point or recycling centre for
electrical and electronic waste. Do this to make sure that the product
is recycled in an environmental friendly way, and help to protect the
environment in which we all live.
ADDITIONAL INFORMATION
This manual is put together with much care and effort and is as complete as could be on
the publication date. However, updates on the specifications, functionality or software may
have occurred since publication. To obtain the latest version of both manual and software,
please visit the Audac website @ www.audac.eu.

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Chapter 1
Connections and connectors
CONNECTION STANDARDS
The in- and output connections for AUDAC audio equipment are performed corresponding
to international wiring standards for professional audio equipment.
Cinch (RCA):
For unbalanced line input connections
Tip: Signal Sleeve: Ground
White: Left Red: Right
XLR:
For balanced microphone input connections. Image shows female port (receptacle)
Pin 1: Ground
Pin 2: Signal +
Pin 3: Signal -
3-Pin Euro-Terminal Block:
For balanced in and output connections
Left: Signal - (XLR Pin 3)
Center: Signal + (XLR Pin 2)
Right: Ground (XLR Pin 1)
For balanced line input connections:
For balanced line output connections:

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For unbalanced line in, output & priority connections:
RJ45 (RS485, Digital audio, +24V DC):
For connection to Wall Panels & Paging Consoles
Pin 1 White-Orange AUDIO TX A
Pin 2 Orange AUDIO TX B
Pin 3 White-Green +24V DC
Pin 4 Blue RS485 A
Pin 5 White-Blue RS485 B
Pin 6 Green GND
Pin 7 White-Brown AUDIO RX A
Pin 8 Brown AUDIO RX B
ATTENTION
The twisted pair cabling must always be ‘straight’. In case of
self-made cabling it must be wired as described above, to ensure
proper functioning of the system.
RS232 (serial connection interface):
For connection with home automation systems, or other remote control equipment
Connection Standard RS232
PIN 2 M2 TX
PIN 3 M2 RX
PIN 5 GND
Settings 19200 Baud
8 Bit
1 Stop bit
No parity
No Handshaking
1

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RS232 / RS485 / TCP/IP
The M2 has RS232, RS485 and TCP/IP ports which all accept the same commands. The
complete command set to control the M2 is available in the M2 commands user manual
which is freely downloadable on www.audac.eu
Wire up the system
The wiring of the system must be done according to the following rules, to guarantee
proper functioning of the system in all circumstances.
1. Speaker cable for amplified zone outputs:
Minimum 2 x 1.5 mm²
If distance > 15 m: 2 x 2.5 mm²)
2. Wall Mounted Input & Control units:
DW3020/4020 UTP/FTP Cat6 cable or better
DW5066 UTP/FTP Cat6 cable or better
APM1xx UTP/FTP Cat6 cable or better
2. Music sources and zone outputs:
Must be connected with high-quality audio cable and high-quality
connectors
3. Ethernet connection:
UTP/FTP Cat5e cable or better

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Chapter 2
Overview front & rear panel
On the front of the R2 amplifier is a power button, One USB (A) connection for updating an
optional touchscreen (R2DIS) provided.
The power button is a latching type and should be used for powering-up the system.
When the power button is pressed, the R2 will startup. When the startup procedure is
taking place, the LED on front of the amplifier will blink blue. After the startup procedure
is completed, the LED will light-up blue, and the R2 will be ready for operation.
The largest rectangular area on the front of the amplifier is the location where the optional
touchscreen should be installed (R2DIS). This touchscreen can be used for controlling and
configuring all the functions of the R2 amplifier. This unit consists of a 7” touchscreen
with a format of 16/9 and a resolution of 800 x 480 px. A small integrated computer
controls the functions of the touchscreen.
The USB (B) connection port on front of the amplifier is dedicated for software updates.
When the touchscreen is installed.
Front

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8 line level in- and outputs are provided in its standard
configuration. Each line input is fitted with stereo RCA input
connectors and a clipping LED which illuminates when the
signal reaches the clipping level. By means of the gain control
potentiometers, the level of the input signals can be controlled.
Each zone output is fitted with RCA stereo connectors for the
connection of external amplifiers. When the optional power
amplifier kit is installed (POW), each output zone has an amplified
stereo with a power of 2 x 60 Watt @ 4 Ohm or 2 x 30 Watt @
8 Ohm. The amplified zone outputs can be bridged by Hardware,
Using the L+ and the R- to obtain a power of 120 Watt @ 8 Ohm
for each output zone.
Audio in- and outputs
Priority & Fiber
Two audio priority inputs and two priority contact inputs provided.
Depending of the configuration, 4 priority signals can be used. The
actions that need to happen when a priority signal occurs can be
freely programmed. There can be automatically switched to the
priority audio inputs when a audio signal is applied, or the internal
routing can be adapted when a signal is available on the contact
inputs.
The link in- and outputs are optical fiber connectors which can be
used for cascading multiple R2’s. For this feature, the optional fiber
interconnection module (OPT2) has to be installed.
Rear

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Peripheral interfaces
10 RJ45 (RED) connectors for expansion with additional wall panels and
in- and output modules are provided. All these connectors carry RS485 data
signals. This allows the control of the Matrix from 10 different locations.
8 of these connectors are able to carry digital audio signals (RS485(1) to
RS485(8)) for Audac paging microphones (APM) and all-in-one wall panel
DW5066.
Control ports:
The RJ45 remote control input should be connected to a LAN network.
This makes it possible to control the R2 system over Ethernet, by means
of a web-browser or mart devcie when combined with a WIFI router and
Audac touch.
The RS232 connection can be used to control the R2 with external
control equipment supporting RS232. This allows to couple the R2 with
your home automation system, and control it through hardware of other
manufacturers, like AMX, Crestron, ….
Power inlet:
The main power supply (110~240V AC / 50~60 Hz) has to be applied to
this AC power inlet. The connection is made by an IEC power connector
and is fitted with a fuse. When replacing the fuse, make sure that the
value of the replacement fuse matches the value of the original fuse.
(T2AL/250V)
Emergency power inlet (24 Volt):
A 24 Volts emergency power supply can be connected to this 2-pin
Terminal block connector for keeping the R2 running on emergency power
when the mains power is shut down. When the R2 is running on 24 Volt
emergency power, the function of the power switch on the front panel is
bypassed and can’t switch the R2 off.
NOTE: When installing the optional Power Amplifier kit, the fuse needs to be changed
accordingly, and should be replaced by a T4AL/250V fuse (included with POW2).
Control ports & Power inlet

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Chapter 3
R2 Quick start guide
This chapter guides you through the setup process of a basic project with one R2 audio matrix
and 8 standard DW3020/4020 wall panels.
Overview of the R2 setup
Connecting the R2
1) Connecting audio sources
Connect all your audio sources (CD-players, tuners, ... ) to the line inputs (RCA
connectors) on the rear panel of the R2. Adjust all input gains to the appropriate level so
no clipping occurs.
2) Connecting amplifiers and/or speakers combined with a WIFI router and Audac
touch
Connect amplifiers (100V or low impedance) to the line outputs (RCA connectors) on
the rear panel of the R2. When the optional power amplifier kit (POW2) is installed, low
impedance loudspeakers can be connected to the loudspeaker outputs (Euro-Terminal
block connectors) on the rear side of the R2.
3) Connecting wall panels
Connect the DW3020/4020 wall panels to the Peripheral Interface (PI) inputs (RS485
connectors) on rear panel of the R2. Multiple DW3020/4020 wall panels can be connected
to one single PI input by using bus cabling (connecting all the wall panels in parallel), or
each wall panel can be connected to an PI input by a separate cable. It doesn’t matter
which PI port is used for which zone.
when connecting the DW5066 wall panels only one can be connected to any one RS485
port at any one time, these limits the total connectable DW5066 devices to 8.
It is recommended that the DW5066 is connected to the a port number that matches the
output it is controlling, this will make configuring the R2 and input naming easier during
the installation.
Prog.
Vol
+
-
+
-
Prog.
Vol
+
-
+
-
Prog.
Vol
+
-
+
-
Prog.
Vol
+
-
+
-
Prog.
Vol
+
-
+
-
Prog.
Vol
+
-
+
-
Prog.
Vol
+
-
+
-
Prog.
Vol
+
-
+
-
Audio sources
Amplifiers
Wall panels

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4) Connecting a computer
A computer can be connected to the R2 through true ethernet. If the computer is directly
connected to the R2, a crossed network cable is necessary. If the R2 is connected to
a local LAN network (connected to a router / switch / hub) a straight network cable is
necessary. Ask your IT administrator for help.
To get access to the user interface, enter the following address in your internet browser
address bar: “http://192.168.0.191” (This is the factory default IP address of the R2, can
be changed in the user interface). The default administrator password (gives you access
to all functions) is “R2” and the default user password (gives you only access to the basic
functions) is “user”. If you want to make any changes to the settings, you should log-in
with the administrator password.
Configuring the R2
1) Changing the IP address
You can skip this step when the default IP address “192.168.0.191” is not used by another
device in your network, and is OK for you. If you like to change the IP address, go to
the “Setup” menu (click the icon in the upper right corner of the main screen) and click
“Network Settings”. Now you can change the IP address, and click “OK” to apply the
changes and save. Afterwards, your browser will be automatically redirected to the new IP
address of the R2, and the default IP address is not longer valid.
2) Changing the password
You can skip this step if the default password “R2” for administrator and “user” for users
is OK for you, buy we always recommend to change these passwords, especially when
your R2 is connected to a public network where external users have access to. If you like
to change the password, go to the “Setup” menu and click “Password settings”. Here you
can change the passwords. First, the old password needs to be entered, and subsequently
the new password needs to be entered twice (Max 10 characters). Press the “OK” button
to save the new password. Now, you always need to log-in with the new passwords and
the default passwords are not longer valid.
3) Configuring wall panels and sources
Go to the “Setup” menu and click “System configuration”. Now you have the possibility
to choose between “Paging”, “DW5066” and “DW3020/4020”. To configure the settings
for the DW3020/4020 wall panels, click the corresponding button. By the dropdown list
on the left side, you can choose for which zone you want to configure a wall panel. After
the desired zone is selected, you can assign one of the connected wall panels with that
particular zone by clicking “Set Address”. The displays on all wall panels will start blinking
with the selected zone number. Push the “Program +” button on the wall panel if you
want to assign that particular wall panel with the selected zone. After the “Program +”
button is pressed, the wall panel will be linked with the selected zone, and the display will
stop blinking.
The R2 contains many different inputs which can be selected to link with a zone. 8
of those inputs are accessible through the “Quick menu” (dropdown list on the main
page). The same inputs which are available in the “Quick menu” can be selected on the
DW3020/4020 wall panels. The other inputs are accessible through the settings menu if
you are logged-in as administrator.
You can choose the inputs which are selectable in the “Quick menu” and with the
DW3020/4020 wall panels through the “Input selection” menu in the “Zone Settings”

17
window (Standard are line inputs 1 to 8 selected). Simply select the desired input signals
by the dropdown lists on the corresponding location. After the desired input channels are
selected, click the “Set inputs” button to save the changes. The selected inputs are now
selectable in the “Quick menu” and by means of the wall panel.
Ready
Your system is now ready for use with the wall panels.

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Chapter 4
User interface & configuration
To get access to the control and configuration settings, the R2 should be connected to a
computer or an Ethernet LAN network. For more information about network connections
and settings, see IP basics in chapter 8.
The standard (factory default) IP address of the R2 is 192.168.0.191, make sure this
address is within the IP range of the connected Ethernet LAN network (subnetmask
255.255.255.0). If the default network address is not within range of your LAN network,
contact your network specialist. The network address can be changed with the Standard
Web Based User Interface but therefore a network connection has to be made first!
Any device (PC, Laptop, PDA or even a Smartphone) with a web browser and the
Macromedia Flash 8.0 plug-in (or higher) installed, can be used to control the web based
user interface.
For smart devices, a special application has been developed to control the standard
functions of the R2 Matrix. this application is called the Audac touch.
Open the user interface
Connect the R2 to your network using a straight cable, it is recommended that the port
connected to the Audac R2 is set to a speed of 10/100MB. Ensure that the computer being
used to control the R2 is within the same range and the default IP address for the R2
192.168.0.
Start your default web browser and enter in the address bar the IP address of the embedded
web server of the R2. (The factory default IP address is http://192.168.0.191).
If multiple R2’s are cascaded with each other through the fiber interconnection interface,
first a selection screen will be displayed whereby the R2 should be selected which you want
to control.
Login screen
First the login screen will be displayed.
A password should be entered to get access to the web interface of the R2 amplifier.
There are two different access levels, administrator level and user level.
If you log-in using the administrator password, you get access to all functions and
configuration options of the R2 Amplifier (The factory default password for administrator
access is “R2”).
When you log-in using the user password, you only get access to the basic functions of
the R2 Amplifier, such as changing the volume and changing the routing for a particular
output zone. (The factory default password for user access is “user”).
After the right password is entered, click the “OK” button, and you will be redirected to
the main screen of the R2 interface.
NOTE
The passwords can be changed in the Configuration >> Password settings menu (Only administrator)

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Main screen
The main screen displays all 8 output zones of the R2 with fader volume controls.
Volume control
The volume of each channel can be set by moving the fader of the corresponding channel
up or down. At the top and bottom side of each fader is a button with an arrow displayed
whereby the volume can be raised or lowered in steps of 1 dB. At the bottom is a “Mute”
button provided which mutes the volume of the corresponding output channel in one click.
After the volume is muted, this mute button will become Red, and the volume can be
unmuted after clicking it again.
Assign zone names
For a better overview of all output channels, every fader can be assigned by a specific
zone name as shown in the example below. The name of the zone can be changed by
double clicking on the name which is displayed above the corresponding fader (indicated
in the picture below with “Zone (number)”). When a cursor comes up, remove the existing
name with the backspace key, and just change the name in the desired name. Click on
the “Save”(green button top right corner) button and confirm to save the changed zone
settings. The name of the corresponding zone will be changed, and next time you log in to
the web based user interface of the R2 the same zone name will be displayed.
Connection status
In the top left corner of the window is the “Connection Status” displayed. To have
communication with the R2, the connection status must be “ONLINE”.
Input channel selection
The desired input signal for a particular zone can be selected by using the dropdown
menu below the zone name. This dropdown menu shows 8 audio input signals which
become the quick default inputs for that zone. When no input signal is selected, the option
“Off” will appear. When a input is selected which is not one of the 8 in the dropdown
menu “other will be displayed.
Editing the selectable inputs within this menu should be done by means of the “input

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Zone settings
After clicking on a “Settings” button, displayed by a fader of a specific zone, you will
be redirected to the “Zone Settings” window. This window gives an overview of all the
settings that can be applied to one specific zone.
Zone settings
Input channel selection
The first window gives an overview of all input channels which can be patched to that
particular output zone. The first displayed option is ‘No Input”, which means when this
option is selected, no input signal will be routed to that particular output zone. At the same
level is the S/PDIF selection button displayed.
Below are from left to right the “Cinch inputs”, the “Wall inputs” and the “Fiber inputs”
displayed.
The “Cinch Inputs” are the direct line inputs which are provided on the rear panel of the
R2 by means of RCA connectors. In the second table are the “Wall Inputs” displayed.
These are all additional input signals (Line or Microphone) which are connected to an
optional wall input unit (DW5066) inputs on the rear side of the R2. In the third table are
the “Fiber Inputs” displayed (Only functional when the optional OPT2 module is installed).
These are the digital audio channels which are transferred over the fiber interconnection
interface, and can be patched to the selected output zone.
To select the desired audio input source which has to be patched with the selected output
channel, simply click the button next to the desired input source. The selected input signal
selection screen” menu, which can be obtained by clicking the “Settings” button below
the “Input Selection” dropdown list. In this case, the option “Other” will appear.
Configuration menu
In the top right corner is a “Setup” button displayed. After clicking this button, you will be
redirected to the general configuration menu of the R2.