2N Helios IP User manual

2N® Helios IP Audio Kit
IP Intercom Module
Installation Manual
Version 1.0.0 www.2n.cz

The 2N TELEKOMUNIKACE a.s. joint-stock company is a Czech manufacturer and supplier
of telecommunications equipment.
The product family developed by 2N TELEKOMUNIKACE a.s. includes GSM gateways,
private branch exchanges (PBX), and door and lift communicators.
2N TELEKOMUNIKACE a.s. has been ranked among the Czech top companies for years
and represented a symbol of stability and prosperity on the telecommunications market
for almost two decades. At present, we export our products into over 120 countries
worldwide and have exclusive distributors on all continents.
2N®is a registered trademark of 2N TELEKOMUNIKACE a.s.. Any product and/or other
names mentioned herein are registered trademarks and/or trademarks or brands
protected by law.
2N TELEKOMUNIKACE administers the FAQ database to help you quickly find information
and to answer your questions about 2N products and services. On faq.2n.cz you can find
information regarding products adjustment and instructions for optimum use and
procedures „What to do if...“.
Declaration of Conformity
2N TELEKOMUNIKACE a.s. hereby declares that the 2N®Helios product complies with all
basic requirements and other relevant provisions of the 1999/5/EC directive. For the full
wording of the Declaration of Conformity see the CD-ROM enclosed and at www.2n.cz.
The 2N TELEKOMUNIKACE company is a holder of the ISO 9001:2008 certificate. All
development, production and distribution processes of the company are managed by this
standard and guarantee a high quality and advanced technical level of and a professional
approach to all of our products.

Contents
1. Product Overview...............................................................1
1.1 Product Description....................................................................................................... 2
Basic Features.................................................................................................................. 2
Advantages of Use........................................................................................................... 3
1.2 Upgrade........................................................................................................................... 4
1.3 2N®Helios IP Audio Kit Components and Associated Products .............................. 5
Basic Units........................................................................................................................ 5
VoIP Telephones.............................................................................................................. 6
Electric Locks ................................................................................................................... 6
Power Supply ................................................................................................................... 6
Additional Modules........................................................................................................... 7
1.4 Terms and Symbols ....................................................................................................... 8
Symbols............................................................................................................................ 8
2. Description and Installation..............................................9
2.1 Before You Start........................................................................................................... 10
Product Completeness Check........................................................................................ 10
2.2 Mechanical Installation................................................................................................ 11
Mounting Types.............................................................................................................. 11
2.3 Electric Installation ...................................................................................................... 13
Device and PCB Connectors.......................................................................................... 13
Device Configuration...................................................................................................... 19
3. Technical Parameters......................................................21
3.1 Technical Parameters .................................................................................................. 22
4. Supplementary Information ............................................25
4.1 Directives, Laws and Regulations.............................................................................. 26
4.2 Troubleshooting........................................................................................................... 27
4.3 General Instructions and Cautions ............................................................................ 28
Electric Waste and Used Battery Pack Handling........................................................... 29

1
1
1. Product
Overview
In this section, we introduce the 2N®Helios IP Audio Kit product, outline its
application options and highlight the advantages following from its use.
Here is what you can find in this section:
Product Description
Upgrade
2N®Helios IP Audio Kit Components and Associated Products

Product Description
1.1
2
1.1 Product Description
Basic Features
2N®Helios IP Audio Kit is a universal and reliable IP intercom module designed for
integration in the third parties’ equipment. It is provided with a number of useful
functions that are not quite common in the devices of this category. Featuring the SIP
standard support and compatibility with renowned IP exchange and telephone
manufacturers, 2N®Helios IP Audio Kit can make use of all VoIP services available on
the market.
2N®Helios IP Audio Kit is equipped with a 10W power amplifier for external
loudspeaker connection. If the power output of the internal loudspeaker is insufficient
for your specific application, you can connect an external loudspeaker to the line
output. You can also connect an external electret microphone or another audio signal
source to the IP intercom line output.
2N®Helios IP Audio Kit allows up to 16 separate buttons or a 16-button matrix
keypad to be connected. Set the button function flexibly according to your specific
application needs. You can set up to three telephone numbers and call time profiles to
each of the buttons to make the called subscriber accessible any time. Configure the
buttons as a numerical keypad, which can be used as a switch activation code lock or
for dialling a preset or any other telephone number.
2N®Helios IP Audio Kit is equipped with one relay output and two active 12V
outputs. Use the numerical keypad or, during the call, any telephone to control these
outputs. A wide range of output mode settings help you make use of a high number of
applications.
2N®Helios IP Audio Kit is equipped with two galvanically isolated digital inputs and
three status signalling outputs.
2N®Helios IP Audio Kit is very easy to install. All you have to do is connect it to
your LAN using the LAN cable. An integrated two-port LAN switch simplifies installation
on sites with a limited LAN infrastructure. Supply the intercom either from a 9-36V
source or directly from your POE supporting LAN.
Use a PC web browser to configure your 2N®Helios IP Audio Kit. Apply the
2N®Helios IP Manager to administer extensive intercom installations easily and
quickly.

Product Description
1.1
3
Advantages of Use
Industrial design and variable mounting options
Wide supply power range + PoE supply
Integrated 10W power amplifier
External amplifier connection
External microphone/audio signal source connection
Galvanically isolated relay output
Two controlled active 12V outputs
Two galvanically isolated logic inputs
Up to 3 signalling LED outputs
Up to 16 external buttons/matrix keypad connection
Integrated two-port LAN switch
Bidirectional communication –acoustic echo cancelling
Configuration via web interface/special PC application
SIP 2.0 support
HTTP(S) server for configuration
SNTP client for server time synchronisation
RTSP server for audio streaming
TFTP client for automatic configuration and firmware update

Upgrade
1.2
4
1.2 Upgrade
The manufacturer reserves the right to modify the product in order to improve its
qualities.
Version
Changes

2N® Helios IP Audio Kit Components and Associated Products
1.3
5
1.3 2N®Helios IP Audio Kit Components and
Associated Products
Basic Units
9154100
Intercom module in
plastic box
9154101
Intercom module
without box

2N® Helios IP Audio Kit Components and Associated Products
1.3
6
VoIP Telephones
91378350
Grandstream GXV3140
VoIP video telephone
91378351
Grandstream GXV3175
VoIP telephone
Electric Locks
932070E
BEFO 1211 12V / 600 mA
932080E
BEFO 1221
with momentum pin
932090E
BEFO 1211MB
with mechanical blocking
Power Supply
91378100E
91378100US
PoE injector
91341481E
Adapter 12 V/2 A
A stabilised power supply
has to be used if the
Ethernet (PoE) power
supply is not available.
932928E
12 V transformer

2N® Helios IP Audio Kit Components and Associated Products
1.3
7
Additional Modules
9159010
Security Relay
9137410E
External IP relay

Terms and Symbols
1.4
8
1.4 Terms and Symbols
Symbols
Safety Warning
Always abide by this information to prevent injury of persons!
Warning
Always abide by this information to prevent damage to the device.
Caution
Important information for system functionality.
Tip
Useful advice.
Note
Additional information.

9
2
2. Description and
Installation
In this section we describe the 2N®Helios IP Audio Kit product and its installation.
Here is what you can find in this section:
Before You Start
Mechanical Installation
Electric Installation

Before You Start
2.1
10
2.1 Before You Start
Product Completeness Check
Before installing this product, please check whether the 2N®Helios IP Audio Kit
delivery complies with the following packing list.
1 2N®Helios IP Audio Kit
1 Short Installation Manual
1 CD

Mechanical Installation
2.2
11
2.2 Mechanical Installation
Mounting Types
Refer to the table below for a list of mounting types and necessary components. Make
sure that the installation site is not exposed to flowing or condensed water.
Wall mounting
Use the proper wall mounting screws
and dowels (not included in the
delivery). Hang the device on the wall
using the cover bottom holes.
DIN rail mounting
Mount the device to a standard TS 35
DIN rail. The recommended minimum
DIN rail length is 14cm.
PCB mounting (for Part No. 9154101
only)
Use 4 –6 distance columns and proper
screws (not included in the delivery) to
mount the PCB to the support. Fix the
distance columns as shown in the figure.

Mechanical Installation
2.2
12
Caution
The warranty does not apply to the product defects and failures arisen as
a result of improper mounting (in contradiction herewith). The
manufacturer is neither liable for damage caused by theft within an area
that is accessible after the attached electric lock is switched. The product
is not designed as a burglar protection device except when used in
combination with a standard lock, which has the security function.
When the proper mounting instructions are not met, water might get in
and destroy the electronics. It is because the intercom circuits are under
continuous voltage and water infiltration causes an electro-chemical
reaction. The manufacturer’s warranty shall be void for products damaged
in this way!

Electric Installation
2.3
13
2.3 Electric Installation
This subsection describes how to connect the 2N®Helios IP Audio Kit into your Local
Area Network (LAN) and how to connect supply voltage and other electric interfaces.
Device and PCB Connectors
Figs. 2.1 and 2.2 show the layout of the 2N®Helios IP Audio Kit connectors and
terminals.
Figure 2.1 2N®Helios IP Audio Kit Connectors
Figure 2.2 2N®Helios IP Audio Kit PCB Connectors

Electric Installation
2.3
14
Legend
Group
Terminals
Function
DC in
9-36V/1.5A power input
LAN1
LAN connection with PoE function
LAN2
LAN connection
D1
Integrated red and green LED indicators
RESET
RESET multifunction button
AUDIO
MODULE
Connection of an audio module with microphone,
loudspeaker, buttons and LEDs
RELAY
NO, COM, NC
Programmable relay switch with an accessible N/O and
N/C contact
LEDs
LED1+, LED1-
LED2+, LED2-
3 current outputs for connection of programmable LED
indicators; two terminals per LED
KEYBOARD
COL1-4
ROW1-4
Connection of matrix keypad (4x4) or 16 separate
buttons
OUTPUTS
OUT1+, OUT1-
OUT2+, OUT2-
2 programmable active 12V DC/650mA outputs
INPUTs
IN1+, IN1-
IN2+, IN2-
2 programmable galvanically isolated inputs
AUDIO
MIC+, MIC-
IN+, IN-
OUT+, OUT-
Microphone input, line input, line output
SPEAKER
SPK+
SPK-
Power amplifier output for loudspeaker

Electric Installation
2.3
15
Connection to LAN
Connect 2N®Helios IP Audio Kit to the LAN using an RJ-45 terminated UTP/STP cable
(of category Cat 5e or higher). As the device is equipped with the Auto-MDIX function,
you can use either the straight or crossed cable version.
2N®Helios IP Audio Kit is equipped with two LAN interfaces (LAN1 and LAN2) and an
integrated Ethernet switch. You can use any of the two interfaces for LAN connection.
LAN1 is the only interface provided with PoE.
LAN2 helps connect another LAN device on the installation site. This interface is not
equipped with PoE.
Note
2N®Helios IP Audio Kit does not allow you to feed another connected
device via PoE. The integrated PoE function is intended for the
2N®Helios IP Audio Kit supply only.
Connection of External Power Supply
2N®Helios IP Audio Kit can be supplied either from an external 9-36/2A DC source or
directly from the LAN provided with the PoE 802.3af supporting network elements.
External Power Supply
Connect the external 12V power supply to the DC in terminals. Use safety low-voltage
voltage (SELV, 9-36V) dimensioned for the minimum current consumption of 1.5A
(Part No. 91341481E, e.g.) to make your device work correctly.
PoE Supply
2N®Helios IP Audio Kit is compatible with the PoE 802.3af technology (Class 0 –
12.95W) and can be supplied directly from the LAN via compatible network elements.
If your LAN lacks such compatible elements, you can insert a PoE injector, Part
No. 91758100E, between your 2N®Helios IP Audio Kit and the nearest network
element. Connect your 2N®Helios IP Audio Kit to the LAN via the LAN1 interface to
supply it successfully.
Caution
In case you feed your 2N® Helios IP Audio Kit via PoE or from a limited-
power external power supply, monitor the power consumption of the
whole system. With regard to the PoE 802.3af capacities and efficiency of
the switched-mode power supplies in the device, the maximum possible
device input is approximately 12W. An overload of the PoE source usually
results in PoE disconnection and, subsequently, 2N® Helios IP Audio Kit
restart.
The 2N® Helios IP Audio Kit consumption at relax (power amplifier
inactive, no load switched on LED1-3 and OUT1-2 outputs) is up to 2W.
The maximum power amplifier consumption is determined by the current
loudspeaker volume level and impedance (up to 10W for a 4Ω
loudspeaker). The real consumption is typically lower and depends on the
characteristics of the signal to be amplified.
If you intend to connect a considerable load to the OUT1 and OUT2
outputs, make sure that the total input does not exceed the above

Electric Installation
2.3
16
mentioned limit (12W for PoE). If the PoE supply fails to provide sufficient
power for the specific application, use a more powerful external source to
make your device work perfectly.
Connection of LED Indicators
2N®Helios IP Audio Kit is equipped with three independent current LED control
outputs (LED1+-, LED2+- and LED3+- terminals). All of them are current outputs
(20mA, up to 12V). You can connect the LEDs directly to the terminals of these
outputs or use LEDs with serial resistors. Mind the polarity while connecting the LEDs
to make your device work properly.
The functions of the LED1, LED2 and LED3 outputs are programmable; refer to the
2N®Helios IP Configuration Manual for details.
Connection of Keypad/Buttons
2N®Helios IP Audio Kit is equipped with an interface for connection of an external
matrix keypad or up to 16 separate buttons; see the figure below:
The buttons are connected in a 4x4 matrix to the ROW1-4 (output) and COL1-4
(inputs) terminals. If you do not make use of all of the 16 buttons, you can leave
some of the ROW and COL signals unconnected. For example, if you need one button
only, connect it to the ROW1 and COL1 terminals.
The button function is programmable. You can set the numerical keypad buttons to
any matrix position (0 to 9, *, #) or configure one of the 16 buttons for dialling a
telephone directory position. Refer to the 2N®Helios IP Configuration Manual for
details.
Caution
Errors such as false keystroke detection may occur in installations with
strong EMI. Therefore, make sure that the keypad or button cables are
carried in a trunk separated from the power cables and are as short as
possible (up to 1m).
ROW1
ROW2
ROW3
ROW4
COL1
COL2
COL3
COL4

Electric Installation
2.3
17
Connection of External Loudspeaker
2N®Helios IP Audio Kit is equipped with an integrated 10W power amplifier of class D.
The amplifier output is available on the SPEAKER+ and SPEAKER- terminals.
The maximum power is achievable with a 4Ω loudspeaker only. The higher the
loudspeaker impedance, the lower the maximum power output; refer to the table
below:
Loudspeaker
impedance
Maximum power (at
+20dB)
4Ω (min)
10W
8Ω
5W
16Ω
2.5W
32Ω
1.2W
64Ω
0.6W
Caution
Never connect a loudspeaker with impedance lower than 4Ω to avoid
system damage.
Never exceed the maximum power output designated for the loudspeaker
to avoid loudspeaker destruction. Choose a loudspeaker with proper
impedance and maximum power values, or limit the maximum volume
level in the device configuration.
Connection of External Microphone
2N®Helios IP Audio Kit is equipped with an input for connection of an external electret
microphone on the MIC+ and MIC- terminals.
Caution
Undesired noise may be heard in the earphone where EMI affects the
microphone signal. To avoid this, connect the microphone using a shielded
cable of the minimum possible length.
Connection of External Amplifier
2N®Helios IP Audio Kit is equipped with a line output for connection of an external
power amplifier on the LINE OUT+ and LINE OUT- terminals.
Connection of External Audio Source
2N®Helios IP Audio Kit is equipped with a line input for connection of an external
audio signal source (FM tuner, MP3 player, e.g.) on the LINE IN+ and LINE IN-
terminals.