DEVA Broadcast DB90-RX User manual

MAINTENANCE AND OPERATION
INSTRUCTION MANUAL
Publish Date: 03-Jan-2018
DB90-RX
IP Audio Decoder

Contents
Introduction........................................................................................................................................ 4
Typographic conventions .................................................................................................................. 5
General Information.......................................................................................................................... 6
Application ...................................................................................................................................... 6
Product Features ............................................................................................................................. 7
Technical Specications .................................................................................................................. 8
Block Diagram ................................................................................................................................ 9
Safety Precautions............................................................................................................................ 10
Panel Indicators and Appointments ............................................................................................... 11
Front View ..................................................................................................................................... 11
Rear View ...................................................................................................................................... 12
Connecting of DB90-RX ................................................................................................................. 13
Analog Audio Outputs .................................................................................................................. 13
Digital Audio Output .................................................................................................................... 13
LAN Port ....................................................................................................................................... 13
Operation.......................................................................................................................................... 14
Status ............................................................................................................................................. 16
DB90-RX Conguration ............................................................................................................... 18
Applying New Settings ............................................................................................................. 18
Network Settings....................................................................................................................... 18
Web Server Settings .................................................................................................................. 19
SNMP Settings .......................................................................................................................... 19
Other Settings .......................................................................................................................... 19
IP Audio Settings ..................................................................................................................... 20
Analog Audio Output Settings .................................................................................................. 20
Audio Source Switching............................................................................................................ 21
Factory Defaults Settings ............................................................................................................. 22
Stream Default Settings ............................................................................................................ 23
Network Default Settings.......................................................................................................... 23
WEB Server Default Settings ................................................................................................... 23
SNMP Default Settings ............................................................................................................. 23
Other Default Settings ............................................................................................................. 23
Hardware Reset ............................................................................................................................. 24
Network Default Settings.......................................................................................................... 24
WEB Server Default Settings.................................................................................................... 24
Rebooting ..................................................................................................................................... 25
Firmware Update ......................................................................................................................... 26
UPnP discovery in Local Networks ................................................................................................ 27
UPnP Activation ............................................................................................................................... 28
WARRANTY TERMS AND CONDITIONS................................................................................. 29
Product Registration Card.............................................................................................................. 30

THIS PAGE
IS INTENTIONALLY
LEFT BLANK

65 Aleksandar Stamboliyski Str., 8000 Bourgas, Bulgaria
Tel: [phone], Fax: [phone]
E-mail: of[email protected] ,Web: www.devabroadcast.com
- 4 -
Introduction
DEVA Broadcast Ltd. is an international communications and high-technology manufacturing
organization, its corporate headquarters and facility located in Burgas, Bulgaria. The company
serves the broadcast and corporate markets worldwide – from consumers and small businesses to
the largest global organizations. It is dedicated to the research, design, development and provision
of advanced products, systems and services. DEVA launched its own brand back in 1997 and has
nowadays evolved to become known as a market leader and internationally reputed manufacturer
of user-friendly, cost-effective and innovative broadcast products.
Creativity and innovation are deeply woven into DEVA corporate culture. Through successful
engineering, marketing and management our team of dedicated professionals creates future-
oriented solutions to improve customers’ performance. You may rely that all issues communicated
to our crew would be addressed accordingly. We pride ourselves on our pre and post-sales support
and purchase services, which along with the outstanding quality of our radio gear have won us due
respect and the market authority position.
DEVA best-of-breed solutions have become the best sellers for our partners. The strategic
partnerships which have been formed with industry leaders during all these years that we have been
operating on the broadcasting market, have proved us a reliable business partner and a valuable
asset, as our dealers worldwide would conrm. In constant pursuit of precision and long-term
satisfaction, DEVA enhances the reputation of our partners and clients alike. Furthermore, we have
already a proven merit as a credible partner provider.
Our portfolio offers complete line of high quality and competitive products for FM and Digital
Radio, Radio Networks, Telecommunication Operators and regulation authorities. For almost
two decades of intensive software and hardware development, we have achieved a unique price-
performance and endurance of our product lines. Our company’s multitude of equipment and
services is in line with the latest technologies and key trends. The most recognizable characteristics
attributed to DEVA products are their clear-cut, streamlined design, easiness of use and cost-
effectiveness: simplicity of forms but multiplicity of functions.
For us there is no stage when we deem that we have reached the most satisfactory level in our
work. Our engineers are in constant pursuit of new ideas and technologies to be captured in DEVA
solutions. Simultaneously, a strict control is being exercised at each step of any new development.
Experience and hard work are our fundament but the continuous improving process is what we
never leave aside. DEVA participates on a regular basis in all landmark broadcasting events, not
only to promote its products, but to exchange valuable know-how and experience. We are also
engaged in international large-scale projects involving radio and audio solutions which makes us
even more competitive on the global market.
All DEVA products are developed and produced in accordance with the latest ISO 9001 quality
control standards.

65 Aleksandar Stamboliyski Str., 8000 Bourgas, Bulgaria
Tel: [phone], Fax: [phone]
E-mail: of[email protected] ,Web: www.devabroadcast.com
- 5 -
Typographic conventions
This manual uses the following typographic conventions:
Style Used for
NOTE Important notes and recommendations
Example Used when example text is cited
“Menu” on page XX. References
[OK] Interface Interactive buttons.
Settings Menu paths are represented as follows: Settings> General> Backup

65 Aleksandar Stamboliyski Str., 8000 Bourgas, Bulgaria
Tel: [phone], Fax: [phone]
E-mail: of[email protected] ,Web: www.devabroadcast.com
- 6 -
General Information
DB90-RX IPAudio Decoder is an integrated decoder for IP transmitted digital audio signal. It is
a device designed to support HE-AAC and MPEG-1 Layer 3 compressed audio streams and PCM
uncompressed stream for audio reception without quality loss.
Decoding takes place in real time by a powerful DSP processor and the output signal is both in
digital and analog form. No matter how sophisticated, DB90-RX is located in a small and compact
housing. All this allows you to quickly and painlessly integrate existing audio systems to the
Internet.
Developed with the thought of easiness of use, DB90-RX can be managed through a standard
Web browser, PC, PDA or other device.
APPLICATION
• Audio reception over IP-based networks.
• Point-to-Point Audio Transfer (DB90-TX IP Audio Encoder is required at the opposite site).
• Suitable for professional and consumer use.

65 Aleksandar Stamboliyski Str., 8000 Bourgas, Bulgaria
Tel: [phone], Fax: [phone]
E-mail: of[email protected] ,Web: www.devabroadcast.com
- 7 -
PRODUCT FEATURES
• High Quality HE-AAC (v.1 and v.2), MPEG-1 and MPEG-3 Decoding;
• 32 kHz, 44.1 and 48 kHz sample rates support;
• Support of all standard bitrates and VBR as well;
• 6 LEDs and Phones output for quick diagnostics;
• IP address pronunciation at startup (through the headphones);
• Easy setup via a standard web browser;
• UPnP for easy discovery in Local Networks;
• Status monitoring via SNMP
• Source switch notication via SNMP
• Shoutcast / Icecast compatible TCP/IP client;
• Automatically switching to another server in the event of a connection error or loss;

65 Aleksandar Stamboliyski Str., 8000 Bourgas, Bulgaria
Tel: [phone], Fax: [phone]
E-mail: of[email protected] ,Web: www.devabroadcast.com
- 8 -
TECHNICAL SPECIFICATIONS
Audio decoder
Decoder HE-AAC (v.1 and v.2), MPEG-1 Layer 3 or raw PCM
Sample rates 32, 44.1 and 48 kHz
Bit Rates All standard bitrates, including VBR
Analog audio output
Connector 2 x RCA, stereo
Type Unbalanced
Level +9dBu @ 0dBFs
Sample rate Same as the source stream
Dynamic range 101 dB
Digital audio output
Connector RCA
Type S/PDIF (IEC 60958)
Sample rate 48 kHz
Resampling Thru build-in sample rate converter
Stream client
Type Shoutcast/Icecast compatible TCP/IP client
Codec Support Codec SupportAAC, MP3, PCM
Servers Up to 3 with auto-switch on failure
RTP Receiver
Type Unicast RTP/UDP compatible receiver
Codec AAC, MP3
Count 1
Phones audio output
Connector 1/8” (3.5mm) jack, stereo
Type Headphones
User interface
Indicators 6 LEDs on front panel
Web interface Full control and status information
Network
Connector RJ-45
Type Ethernet
Device discovery UPnP support
Operating conditions
Temperature 10ºC - 45ºC
Humidity < 75%, non-condensing
Power requirements
Connector Power Jack 1/4” (6,3 mm)
Power supply 12V DC, 1A
Size and weight
Dimension (W x H x D) 4,17” x 1,3” x 5” (106 x 33 x 128 mm)
Weight 0,44 lbs (0,2 kg)

65 Aleksandar Stamboliyski Str., 8000 Bourgas, Bulgaria
Tel: [phone], Fax: [phone]
E-mail: of[email protected] ,Web: www.devabroadcast.com
- 9 -
BLOCK DIAGRAM
A simplied block diagram of DB90-RX IP Audio Decoder is shown below
D/A
ANALOG
AUDIO
L
R
WEB SERVER
STREAM CLIENT
MP3 DECODER
HE-AAC v2 DECODER
POWER
LAN
DIGITAL
AUDIO
S/PDIF
TX
PHONES
DSP
Because of the all-digital, minimalist-discrete-component nature of device circuitry, we have not
provided schematic diagrams of the DB90-RX in this Manual. As they say on the back of TV sets:
NO USER-SERVICEABLE COMPONENTS INSIDE.
REFER ALL SERVICING TO
QUALIFIED TECHNICAL PERSONNEL.

65 Aleksandar Stamboliyski Str., 8000 Bourgas, Bulgaria
Tel: [phone], Fax: [phone]
E-mail: of[email protected] ,Web: www.devabroadcast.com
- 10 -
Safety Precautions
IMPORTANT: Carefully read this paragraph as it contains important instructions concerning
operator safety and directions regarding the installation, operation and maintenance of the
equipment. Failure to observe the safety instructions and information given in this manual
constitutes an infringement of the safety rules and design specications provided for this piece
of equipment.DEVA Broadcast Ltd. declines all responsibility if any one of the safety rules given
herein is not observed. DEVA Broadcast Ltd. declines all responsibility if the end-user resells the
product. The equipment is to be used by people capable of operating it in a trouble-free manner
and it is assumed that they are aware of the following safety rules.
◊ Keep this manual with the utmost care and close at hand so that it can be consulted whenever
needed
◊ After unpacking the equipment, check it for condition.
◊ Avoid banging the equipment.
◊ The packing material (plastic bags, polystyrene, nails, etc.) must never be left within the reach
of the children, as these items are potential sources of danger.
◊ Do not use the equipment in places where the temperature is not within the recommended
range, as specied by the manufacturer.
◊ Before connecting the equipment, make sure the nameplate specications correspond to the
mains electricity supply (the nameplate is located on the equipment enclosure).
◊ Do not remove the sticker from the equipment as it contains important specications and the
relevant serial number.
◊ To join the equipment to the mains supply, use the power cord purchased with the equipment.
◊ The equipment must be used only for the purpose it was designed for.
◊ Abuse or misuse of the equipment is extremely dangerous for people, pets and property. The
manufacturer declines all responsibility for damage and injury resulting from improper use and
mishandling.
◊ Certain basic safety rules must be observed when using electrical equipment, in particular:
- Never touch the equipment with wet and/or damp hands or other parts of the body.
- Keep the equipment away from drops of water or sprinkling systems.
- Never use the equipment near high heat sources or explosive material.
- Do not introduce any extraneous matter into the equipment.
- Do not allow children or untrained people to use the equipment.
◊ Before cleaning or servicing the equipment outside, disconnect it from the supply and wait at
least 2 seconds before working on it, as recommended by current safety regulations.
◊ In the event of faults and/or improper operation, turn off the equipment, shut off the electrical
power and call your dealer.
◊ Do not attempt to make repairs and/or adjustments when covers/guards or circuit boards are to
be removed.
◊ Call your dealer for any repairs and be certain original spare parts are used. Failure to observe
this rule may adversely affect the safety level of your equipment.
◊ The equipment is to be connected to the mains supply and provided with adequate and efcient
earth conductors.
◊ When installing, leave a clearance of at least 1 cm around the equipment to allow air to pass
freely.

65 Aleksandar Stamboliyski Str., 8000 Bourgas, Bulgaria
Tel: [phone], Fax: [phone]
E-mail: of[email protected] ,Web: www.devabroadcast.com
- 11 -
Panel Indicators and Appointments
FRONT VIEW
PHONES LANPWR BUSY
L R
1
2345
6
7 8
1 - Phones Output. The following audio signals are reproduced through the headphones:
Voice Announcement of DB90-RX IP Audio Decoder IP address upon startup;
Audio signal identical to that of the outputs audio;
2 - Left Channel Level LED Indicator. This LED can be in one of the following states:
Off - the channel level is within norms;
Blinking – indication of low signal level;
Constantly lit – indication of high signal level;
3 - Right Channel Level LED Indicator. This LED can in one of the following states:
Off - the channel level is within norms;
Blinking – indication of low signal level;
Constantly lit – indication of high signal level;
4 - Status LED Indicator. Blinking frequency of this LED is indication of DB90-RX state:
Fast blinking – in process of connection;
Approximately once per second – data buffering;
Approximately once per 2 seconds – DB90-RX is connected and operating normally;
5 - Power LED Indicator.
6 - LAN Port / Internet Input – standard RJ-45 port;
7 - Network Activity LED Indicator (RJ-45 built-in);
8 - Network Availability LED indicator (RJ-45 built-in);

65 Aleksandar Stamboliyski Str., 8000 Bourgas, Bulgaria
Tel: [phone], Fax: [phone]
E-mail: of[email protected] ,Web: www.devabroadcast.com
- 12 -
REAR VIEW
TCP/IP M
INI
A
UDIO
T
OOL
LEFT RIGHT S/PDIF
POWER
12V / 2A
1 2 345
1 - Left Line Analog Output – standard RCA female jack;
2 - Right Line Analog Output – standard RCA female jack;
3 - Factory Defaults Reset button;
4 - S/PDIF Output – standard RCA female jack;
5 - Power Supply (12V, 1A);

65 Aleksandar Stamboliyski Str., 8000 Bourgas, Bulgaria
Tel: [phone], Fax: [phone]
E-mail: of[email protected] ,Web: www.devabroadcast.com
- 13 -
Connecting of DB90-RX
ANALOG AUDIO OUTPUTS
Using a cable ending with two standard RCA jacks connect DB90-RX analog signal outputs to
the analog audio inputs of your equipment.
DIGITAL AUDIO OUTPUT
Using a cable ending with a standard RCA jacks connect DB90-RX S/PDIF output to the digital
audio input of your equipment.
LAN PORT
For normal operation it is necessary the device to be connected to a local network or Internet
by cable with RJ-45 connector.

65 Aleksandar Stamboliyski Str., 8000 Bourgas, Bulgaria
Tel: [phone], Fax: [phone]
E-mail: of[email protected] ,Web: www.devabroadcast.com
- 14 -
Operation
DB90-RX is controlled through the built-in web server and a standard web browser can be used
to monitor its status or make some adjustments. To connect to the device you need to know its IP
address and follow the next steps:
• Open a WEB Browser.
• Enter the device IP address in the browser’s address eld.
• Press <ENTER>.
If you do not know the device IP address you can hear it through the headphones when you turn
on the device. The other option to nd out the IP address is using UPnP discovery in local networks
(see “UPnP discovery in Local Networks” on page 27).
The web interface consists of the following pages:
• Status
• Conguration
- Network
- IP Audio
• Factory Defaults
• Reboot
• Firmware Update
At the top of each page is located the Navigational Menu and underneath, on the left side is the
section with relevant information and adjustment elds. There is a kind of help section on the right
side, containing brief information about each of the elds on the left.
Hover with your mouse over any of the left side elds to bring out a eld’s description next to
the mouse pointer.

65 Aleksandar Stamboliyski Str., 8000 Bourgas, Bulgaria
Tel: [phone], Fax: [phone]
E-mail: of[email protected] ,Web: www.devabroadcast.com
- 15 -
The picture below is illustrating STATUS page opened:
NOTE: As shown on the picture below a Username and Password may be requested if the
Access Control is turned on and a page other then STATUS is selected (see “Web Server Settings”
on page 19). Defaults values are user and pass.

65 Aleksandar Stamboliyski Str., 8000 Bourgas, Bulgaria
Tel: [phone], Fax: [phone]
E-mail: of[email protected] ,Web: www.devabroadcast.com
- 16 -
STATUS
On the picture below is shown the page with current device status:
This page contains information regarding current status of DB90-RX as follows:
• Audio Status;
• Network Status;
• Connection Status;
NOTE: Level of the Audio signal is dynamically updated.

65 Aleksandar Stamboliyski Str., 8000 Bourgas, Bulgaria
Tel: [phone], Fax: [phone]
E-mail: of[email protected] ,Web: www.devabroadcast.com
- 17 -
Under Network Status are shown MAC address and current IP address, Network mask and
Gateway and the method in which they have been assigned: Static Allocation or allocated by
DHCP server. Shown are also the primary and secondary DNS servers.
Connection Status is the place showing which one of the three available URLs is currently used,
device status (connected or disconnected), connection time, stream parameters and name.
Please note that if a compressed stream is used, Sample rate and Bitrate will be taken from the
stream. If the stream is in uncompressed format (PCM) then what is displayed for Sample rate and
Bitrate is what is set in the Conguration page.
In the upper right corner is located LIVE DATA icon. Clicking on the icon will toggle live data
ON and OFF as follows:
- live data is ON
- live data is OFF.

65 Aleksandar Stamboliyski Str., 8000 Bourgas, Bulgaria
Tel: [phone], Fax: [phone]
E-mail: of[email protected] ,Web: www.devabroadcast.com
- 18 -
DB90-RX CONFIGURATION
Applying New Settings
In order new settings to take effect, it is necessary to press the SAVE button. Please keep in
mind that some of the new settings can reset the device.
Network Settings
• DHCP – As DHCP Client is used to automatically obtain the Network Settings it can be
enabled or disabled. Default value is ON.
• IP Address – A eld where static IP address is to be entered in case that DHCP client is not
used. Example: 192.168.0.2.
• Netmask – A eld where static subnet mask is to be entered. This parameter is not used if the
DHCP Client is enabled. Example for Netmask is: 255.255.255.0.
• Gateway – A eld where static gateway is to be entered. This parameter is not used if the
DHCP Client is enabled. Example for gateway is: 192.168.0.1.
• DNS 1 – A eld where Static primary DNS server is to be entered. It is not used if DHCP
Client is enabled. Example: 192.168.0.1
• DNS 2 – A eld where Static secondary DNS server to be entered. It is not used if DHCP
client is enabled. Example: 192.168.0.1

65 Aleksandar Stamboliyski Str., 8000 Bourgas, Bulgaria
Tel: [phone], Fax: [phone]
E-mail: of[email protected] ,Web: www.devabroadcast.com
- 19 -
Web Server Settings
• Port – This is the TCP port of the WEB Server. Default value is 80.
• Username – User name for the WEB Server. Default value is user.
• Password – Password for the WEB Server. Default value is pass.
NOTE: Username and Password are used in order to restrict access to all conguration pages.
You can dene Username only, Password only or both of them. If both Username and Password
are left blank, NO security is used.
SNMP Settings
SNMP MIB File: Press the Download button to download DB90-RX SNMP MIB le.
NOTE: The MIB le may change from one rmware revision to the other. Downloading this
le from the device ensures that you have the proper MIB le.
Specify Agent ID, Agent Port, Read/Write Communities, Manager IP and Manager Port.
NOTE: Agent ID is used to identify the device among others when a SNMP notication is send.
Agent - enables/disables SNMP Agent.
Other Settings
• Name – Name of the device. This name is used to identify the device in local network and is
used as title on all web pages. Up to 63 alpha-numeric characters can be entered.

65 Aleksandar Stamboliyski Str., 8000 Bourgas, Bulgaria
Tel: [phone], Fax: [phone]
E-mail: of[email protected] ,Web: www.devabroadcast.com
- 20 -
IP Audio Settings
• URL – URL of the stream server. Up to 3 URLs can be dened. Up to 63 characters can be
entered.
• Decoder + Sample rate – Select decoder and sample rate. For PCM (uncompressed) sample
rate can be 32, 44.1 or 48 kHz. For HE-AAC and MPEG1 sample rate is determined
automatically from the stream. Default value is HE-AAC / auto.
• Channels – Number of channels in PCM stream: 1 or 2. NOTE: This is not used for encoded
stream.
• Prebuffer – Minimum size of data in buffer before playing starts. Must be in the
range10240-65535. Default value is 32768.
• Buffering timeout – Seconds to wait for buffer to ll up. If the timeout is reached the device
will skip to next server. Default value is 30s.
• Gain Adjust - Audio gain adjust from -10 to 10 dB. Default value is 0dB.
NOTE: “Gain Adjust” is digital. If the sum of Signal Level and Gain is greater than 0dBFs the
signal will be distorted.
Analog Audio Output Settings
• Analog Level – Analog output volume from 0 to 100%. Default value is 100%.
NOTE: In order to ensure normal operation when PCM is used, it is necessary to select the
same sample rate at both encoding and decoding side.