DEVA Broadcast DB4402-V2 User manual

MAINTENANCE AND OPERATION
INSTRUCTION MANUAL
Publish Date: 20-Jun-2019
DB4402-V2
High-Performance Dual
FM Monitoring Receiver & Radio Streamer

Contents
Introduction........................................................................................................................................ 5
Typographic conventions .................................................................................................................. 6
General Information.......................................................................................................................... 7
Product Features ................................................................................................................................ 8
Technical Specications .................................................................................................................. 9
Factory Default Settings .................................................................................................................. 11
Monitoring Receiver...................................................................................................................... 11
Network Settings....................................................................................................................... 11
WEB Server .............................................................................................................................. 11
E-mail ....................................................................................................................................... 11
Audio......................................................................................................................................... 11
GSM Modem............................................................................................................................. 11
SNMP Settings.......................................................................................................................... 12
Management Settings................................................................................................................ 12
Channel Presets Default Settings ............................................................................................. 13
Audio Streamer.............................................................................................................................. 14
Network Settings............................................................................................... 14
WEB Server .............................................................................................................................. 14
Audio......................................................................................................................................... 14
GSM Modem............................................................................................................................. 14
SNMP Settings.......................................................................................................................... 14
Management Settings................................................................................................................ 15
Safety Precautions............................................................................................................................ 16
Panel Indicators and Appointments............................................................................................... 17
Front View ..................................................................................................................................... 17
Rear View ...................................................................................................................................... 18
Getting Started ................................................................................................................................ 19
Connection .................................................................................................................................... 19
Network Settings............................................................................................................................ 20
Network Discovery ........................................................................................................................ 20
Login ............................................................................................................................................. 21
WEB Interface FM Monitoring Receiver ...................................................................................... 22
Device Control Interface............................................................................................................... 22
Main .............................................................................................................................................. 23
MPX............................................................................................................................................... 24
Loudness........................................................................................................................................ 25
FM Graph...................................................................................................................................... 26
RDS/RBDS..................................................................................................................................... 27
FFT................................................................................................................................................ 30
Scope ............................................................................................................................................. 31
Bandscan ....................................................................................................................................... 32
Status ............................................................................................................................................. 33
LOG............................................................................................................................................... 34
General Settings ............................................................................................................................ 35
Tuner Settings................................................................................................................................ 36

Channels Settings (Channels 1 to 6) ............................................................................................. 37
Communication Settings................................................................................................................ 39
Outputs Settings ............................................................................................................................ 41
Other Settings................................................................................................................................ 42
WEB Interface FM Radio Streamer .............................................................................................. 43
Device Control Interface............................................................................................................... 43
Main .............................................................................................................................................. 44
RDS/RBDS..................................................................................................................................... 45
Bandscan ....................................................................................................................................... 48
Status ............................................................................................................................................. 49
LOG............................................................................................................................................... 50
General Settings ............................................................................................................................ 51
Tuner Settings................................................................................................................................ 52
Channels Settings (Channels 1 to 6) ............................................................................................. 53
Communication Settings................................................................................................................ 54
Outputs Settings ............................................................................................................................ 56
Other Settings................................................................................................................................ 57
APPENDIX A ................................................................................................................................... 58
Alarm Triggers .............................................................................................................................. 58
Alarm Notications ....................................................................................................................... 60
APPENDIX B ................................................................................................................................... 61
GSM Modem Option - Features and Usage.................................................................................. 61
Short message services available.................................................................................................. 62
Remote Audio Listening ................................................................................................................ 62
Remote Status Request .................................................................................................................. 63
Initialization procedure for Sierra Wireless AirLink FXT009 GSM modem ................................ 64
1. Setting up the modem............................................................................................................ 64
2. Connecting with DEVA Unit................................................................................................. 66
APPENDIX C................................................................................................................................... 67
How should I congure the connection between my DEVA Device and an FTP Client? 67
WARRANTY TERMS AND CONDITIONS................................................................................. 69
Product Registration Card.............................................................................................................. 70

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
- 5 -
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
- 6 -
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
- 7 -
General Information
The DB4402-V2 – Dual FM Monitoring Receiver is a superb and highly practical combination
between a logger and a streamer which allows you to easily and accurately monitor and store all
important parameters of the FM signal while simultaneously giving you the opportunity to listen to
a constant, uninterrupted audio stream. The synchronized performance of both major functions is
at the core of the idea for this model, as well as the unit’s major asset. You can listen to the selected
audio feed at the same time as the logger campaign is running. The design of this device relies
on simplicity coupled with functionality to offer customers the opportunity of a single solution to
both tasks.
Providing the stable, dependable operation characterizing all DEVA products, the DB4402-V2
is fully DSP-based, with a built-in oscilloscope and an RDS/RBDS decoder with a BER meter.
It also permits users to set alarms for RF, MPX, Pilot and RDS signal via email, SMS or SNMP.
What is more, the TCP/IP and GSM connectivity provides easy remote control, monitoring and
listening to the radio signal from any location.
The device offers a “Restore Factory Defaults” option and easy update of the rmware. It is
an advanced solution giving customers a number of advantages and top all-round, multi-faceted
performance as both a monitoring tool and a streaming device.

65 Aleksandar Stamboliyski Str., 8000 Bourgas, Bulgaria
Tel: [phone], Fax: [phone]
E-mail: of[email protected] ,Web: www.devabroadcast.com
- 8 -
Product Features
• Fully DSP based core
• Built-in Oscilloscope allowing Left, Right and MPX display
• MPX Power measurement with data history
• Loudness meter
• RF Spectrum analyzer allowing to check the RF Carrier parameters
• MPX Spectrum analyzer for Left, Right and MPX measurements
• Selectable De-emphasis – 50µs and 75µs
• Built-in Stereo Decoder; Stereo Presence Detection
• Date & Time Settings with various formats
• LAN port for full TCP/IP remote control and monitoring
• Up to 90dBµV direct RF Antenna Input
• Adjustable alarms for RF, Deviation, Pilot and RDS signal
• Firmware update for future-proof operation
• Parameters Factory Restore Option
• FM Band 87 - 108 MHz Basic Spectrum Analyzer
• MPX, PILOT & RDS deviation meters
• LEFT and RIGHT demodulated audio level meters
• Headphones audio output
• RDS and RBDS decoder with BER meter
• Intuitive Application Interface
• Alarm dispatch via E-mail, SMS, SNMP
• Channel status reporting via SMS
• RF and RDS Measurements
• Remote Listening via optional GSM modem
• Real Time Audio Program Streaming
• Attractive price and very good price-performance ratio
• Very Intuitive Embedded WEB server for interactive supervision
• Proved and reliable hardware for 24/7/365 operating
• Easy Installation and Setup
• SNTP for automatic synchronization of the built-in clock
• Compact and Robust Aluminum Case for high RF immunity

65 Aleksandar Stamboliyski Str., 8000 Bourgas, Bulgaria
Tel: [phone], Fax: [phone]
E-mail: of[email protected] ,Web: www.devabroadcast.com
- 9 -
TECHNICAL SPECIFICATIONS
RF INPUT
Tuning Range User selectable, 87.1-107.9 MHz (CCIR), 65-74 MHz (OIRT),
76-95 MHz (Japan)
Tuning Step 10, 20, 50, 100 kHz
Tuner Sensitivity 30 dBµV
Antenna Port BNC Connector, 50Ω
Internal Attenuator 0, 10, 20 and 30 dB
Dynamic range 100 dB
FM DEMOD
IF Filter Bandwidth 15 Increments (25kHz - 157kHz, Auto)
Frequency Response ±0.1 dB, 10 Hz to 86 kHz
Dynamic range 90 dB
STEREO DECODER
Frequency Response (L and R) ±0.1 dB, 10 Hz to 15 kHz
SNR (Stereo) 60 dB, 50 µs de-emphasis
THD 0.1%, 10 Hz to 15 kHz, 50 µs de-emphasis
Separation 50 dB, 50 Hz to 10 kHz, 50 µs de-emphasis
Crosstalk 52 dB
RDS DECODER
Standards European RDS CENELEC; United States RBDS NRSC
Error Correction & Counting Yes
AF Decoding Yes
CT (Time/Date) Yes
PI, PTY, DI, MS Yes
TA/TP Yes
RT (Radio Text), RT+ Yes
PS (Program Service name) Yes
ODA Yes
Group Analyzer Yes
BER Analyzer Yes
METERING ACCURACY
RF Level ±1 dB, 0 to 100 dBµV
Multipath 0 to 100%; accuracy - ±1%
MPX Deviation ±2 kHz, 10 to 100 kHz, 1 kHz resolution
MPX Power ±12 dBr; resolution - 0.1dBr, 10 sec. integration; accuracy -
±0.2 dBr
Pilot Level ±0.5 kHz, 1 to 12 kHz, 0.2 kHz resolution
RDS Level ±0.5 kHz, 1 to 12 kHz, 0.2 kHz resolution
Audio Level ±1 dB, +10.0 to -55.0 dB, 0.1 dB resolution

65 Aleksandar Stamboliyski Str., 8000 Bourgas, Bulgaria
Tel: [phone], Fax: [phone]
E-mail: of[email protected] ,Web: www.devabroadcast.com
- 10 -
FFT SPECTRUM ANALYSIS
Input Composite MPX, Audio
Dynamic Range 80 dB
FFT Length 1024
Sampling Rate 256 kHz - Composite, 64 kHz - Audio
SCOPE ANALYSIS
Input Composite MPX, Audio
Trigger Mode Auto, Fall
Dynamic Range ±120 kHz
Sampling Rate 256 kHz - Composite, 64 kHz - Audio
USER INTERFACE
Web interface Full monitoring and control; Interactive and easy to use
Indicators 6 LEDs (on front panel)
Headphone Output 1/8” (3.5mm) phone jack (on front panel)
OPERATING CONDITIONS
Temperature 10° to 60°C
EMC Immunity 6V/m
OUTPUTS
Audio stream Icecast/Shoutcast compatible audio stream
Alarms E-mail, SMS, SNMP
Headphone 1/8” (3.5mm) Phone Jack
GSM Modem 15-pin Male D-Sub Connector
COMMUNICATION INTERFACES
Ethernet 10/100 Base-T RJ45 Connector
GSM Modem 15 pin Male D-Sub Connector
POWER SUPPLY
Voltage 100-240V / 50-60 Hz / 25W
Connector IEC320
SIZE AND WEIGHT
Dimensions (W;H;D) 485 x 44 x 300 mm
Shipping Weight 540 x 115 x 300 mm / 4.5kg

65 Aleksandar Stamboliyski Str., 8000 Bourgas, Bulgaria
Tel: [phone], Fax: [phone]
E-mail: of[email protected] ,Web: www.devabroadcast.com
- 11 -
Factory Default Settings
MONITORING RECEIVER
Network Settings
IP 192.168.1.2
Gateway 192.168.1.1
Subnet Mask 255.255.255.0
DNS 192.168.1.1
DHCP Enabled
WEB Server
HTTP Port 80
Admin Username user
Password pass
User Username user
Password pass
E-mail
E-mail 1 blank
E-mail 2 blank
Sender blank
Server blank
Port 25
Audio
Stream Port 5000
Name DB4402-V2 - FM Radio Monitoring Tool
Quality 128 kbps
GSM Modem
Number 1 blank
Number 2 blank
Number 3 blank
Number 4 blank
Baudrate 9600

65 Aleksandar Stamboliyski Str., 8000 Bourgas, Bulgaria
Tel: [phone], Fax: [phone]
E-mail: of[email protected] ,Web: www.devabroadcast.com
- 12 -
SNMP Settings
Agent Enabled
Agent ID 1
Agent Port 161
Read Community DEVA4402
Write Community DEVA4402
Manager IP 192.168.1.1
Manager Port 162
Management Settings
Attenuator Auto
De-emphasis 50 µs
Internet Time Enabled
Internet Time Server pool.ntp.org
Internet Time Server Port 123
Time Zone UTC (+00:00)
Web session timeout 3 minutes
SNMP session timeout 1 minute

- 13 -
65 Aleksandar Stamboliyski Str., 8000 Bourgas, Bulgaria
Tel: [phone], Fax: [phone]
E-mail: of[email protected] ,Web: www.devabroadcast.com
Channel Presets Default Settings
Parameter CH 1 CH 2 CH 3 CH 4 CH 5 CH 6
Scheduling Disabled Disabled Disabled Disabled Disabled Disabled
Frequency 98 kHz 98 kHz 98 kHz 98 kHz 98 kHz 98 kHz
Alarms Control All Disabled All Disabled All Disabled All Disabled All Disabled All Disabled
Trigger Time 5 minutes 5 minutes 5 minutes 5 minutes 5 minutes 5 minutes
Release Time 5 minutes 5 minutes 5 minutes 5 minutes 5 minutes 5 minutes
RF Alarm Low Threshold 40 dBµV 40 dBµV 40 dBµV 40 dBµV 40 dBµV 40 dBµV
RF Alarm High Threshold 60 dBµV 60 dBµV 60 dBµV 60 dBµV 60 dBµV 60 dBµV
MPX Alarm Low Threshold 50 kHz 50 kHz 50 kHz 50 kHz 50 kHz 50 kHz
MPX Alarm High Threshold 90 kHz 90 kHz 90 kHz 90 kHz 90 kHz 90 kHz
MPX Power Alarm Low Threshold -8 dBr -8 dBr -8 dBr -8 dBr -8 dBr -8 dBr
MPX Power Alarm High Threshold 6 dBr 6 dBr 6 dBr 6 dBr 6 dBr 6 dBr
Left Alarm Low Threshold -30 dB -30 dB -30 dB -30 dB -30 dB -30 dB
Left Alarm High Threshold 3 dB 3 dB 3 dB 3 dB 3 dB 3 dB
Right Alarm Low Threshold -30 dB -30 dB -30 dB -30 dB -30 dB -30 dB
Right Alarm High Threshold 3 dB 3 dB 3 dB 3 dB 3 dB 3 dB
Pilot Alarm Low Threshold 5 kHz 5 kHz 5 kHz 5 kHz 5 kHz 5 kHz
Pilot Alarm High Threshold 9 kHz 9 kHz 9 kHz 9 kHz 9 kHz 9 kHz
RDS Alarm Low Threshold 2 kHz 2 kHz 2 kHz 2 kHz 2 kHz 2 kHz
RDS Alarm High Threshold 7 kHz 7 kHz 7 kHz 7 kHz 7 kHz 7 kHz
RDS Group Alarm All Disabled All Disabled All Disabled All Disabled All Disabled All Disabled

65 Aleksandar Stamboliyski Str., 8000 Bourgas, Bulgaria
Tel: [phone], Fax: [phone]
E-mail: of[email protected] ,Web: www.devabroadcast.com
- 14 -
AUDIO STREAMER
Network Settings
IP 192.168.1.10
Gateway 192.168.1.1
Subnet Mask 255.255.255.0
DNS 192.168.1.1
DHCP Enabled
WEB Server
HTTP Port 80
Admin Username user
Password pass
User Username user
Password pass
Audio
Stream Port 5000
Name DB4402-V2 - FM Radio Streamer
Quality 128 kbps
GSM Modem
Number 1 blank
Number 2 blank
Number 3 blank
Number 4 blank
Baudrate 9600
SNMP Settings
Agent Enabled
Agent ID 1
Agent Port 161
Read Community DEVA4402
Write Community DEVA4402
Manager IP 192.168.1.1
Manager Port 162

65 Aleksandar Stamboliyski Str., 8000 Bourgas, Bulgaria
Tel: [phone], Fax: [phone]
E-mail: of[email protected] ,Web: www.devabroadcast.com
- 15 -
Management Settings
Attenuator Auto
De-emphasis 50 µs
Internet Time Enabled
Internet Time Server pool.ntp.org
Internet Time Server Port 123
Time Zone UTC (+00:00)
Web session timeout 3 minutes
SNMP session timeout 1 minute

65 Aleksandar Stamboliyski Str., 8000 Bourgas, Bulgaria
Tel: [phone], Fax: [phone]
E-mail: of[email protected] ,Web: www.devabroadcast.com
- 16 -
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 its condition.
◊ Avoid banging the equipment.
◊ The packing material (plastic bags, polystyrene, nails, etc.) must never be left within reach of
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 purposes 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 its power 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.

- 17 -
65 Aleksandar Stamboliyski Str., 8000 Bourgas, Bulgaria
Tel: [phone], Fax: [phone]
E-mail: of[email protected] ,Web: www.devabroadcast.com
Panel Indicators and Appointments
FRONT VIEW
FM R
ADIO
M
ONITORING
R
ECEIVER
M
ODEL
DB4402
PWR GSMGSM LAN LAN
STATUS
RX1 RX2
PHONES
1
234567
1. Phones Output – Audio signal from the tuned frequency.
2. Power LED Indicator
3. Status
4. RX1 LAN LED Indicator. This LED can be in one of the following states:
- Off – No User Connected, Logger is active;
- Blinking – User is connected, Logger is inactive.
5. RX1 GSM LED Indicator. This LED can in one of the following states:
- Off – no GSM Modem;
- Fast Blinking – GSM Modem initialization;
- Slow Blinking – GSM Modem present and operating.
6. RX2 LAN LED Indicator. This LED can be in one of the following states:
- Off – No User Connected, Logger is active;
- Blinking – User is connected, Logger is inactive.
7. RX2 GSM LED Indicator. This LED can in one of the following states:
- Off – no GSM Modem;
- Fast Blinking – GSM Modem initialization;
- Slow Blinking – GSM Modem present and operating.

- 18 -
65 Aleksandar Stamboliyski Str., 8000 Bourgas, Bulgaria
Tel: [phone], Fax: [phone]
E-mail: of[email protected] ,Web: www.devabroadcast.com
REAR VIEW
LAN
ww w.devabroadcast.com
MADE IN BULGARIA
CAUTION: TO PREVENT ELECTRICAL SHOCK,
DISCONNECT POWER BEFORE SERVICING
GND
RECEIVER 2 100-240VAC
50-63Hz, 25VA
GSM MODEMANTENNA
RECEIVER 1
MAX RF INPUT LEVEL
110 dB Vµ
CAUTION LANGSM MODEMANTENNA
1 2 3 4 5 6
78
Receiver 2
1. LAN Port / Internet Input – standard RJ-45 port;
2. GSM Modem Connector - DB-15 male;
3. Antenna Input - BNC connector for FM Antenna;
Receiver 1
4. LAN Port / Internet Input – standard RJ-45 port;
5. GSM Modem Connector - DB-15 male;
6. Antenna Input - BNC connector for FM Antenna;
7. Power Supply;
8. GND

65 Aleksandar Stamboliyski Str., 8000 Bourgas, Bulgaria
Tel: [phone], Fax: [phone]
E-mail: of[email protected] ,Web: www.devabroadcast.com
- 19 -
Getting Started
In order for the normal operation of the DB4402-V2 to be guaranteed, you will need fulll the
following conditions:
1. Standard Ethernet 10/100M connection;
2. Correctly assigned Network conguration and device settings.
To make sure that all the conditions are fullled please, follow the instructions below.
CONNECTION
1. Install the unit on its operation place;
2. Using the provided power cable, connect the unit to the power supply network;
3. Connect the antenna cable to the RF antenna input connector located on the rear panel of
the device;
4. Connect the DB4402-V2 to the TCP/IP network using direct network cable;
5. Connect the optional GSM modem via the connection cable provided with the GSM modem.
In order for better GSM network coverage to be achieved, please select proper place for the
GSM antenna.
NOTE: The GSM antenna must be installed far enough from the monitoring devices. The
GSM modem radiates RF signal that may cause spurious emissions that will may interfere with
the accuracy of the measurements. For detailed explanation of the option, please refer to”GSM
Modem Option” on page 61.

65 Aleksandar Stamboliyski Str., 8000 Bourgas, Bulgaria
Tel: [phone], Fax: [phone]
E-mail: of[email protected] ,Web: www.devabroadcast.com
- 20 -
NETWORK SETTINGS
After connecting the network cable the Led ‘LAN’ located on the rear panel must be ON or
ashing. The next and most important step for conguration is the adjustment procedure of the
Network Communication. The settings shown below are Default Network Settings:
DHCP Enabled
IP Assigned by DHCP
Mask Assigned by DHCP
Gateway Assigned by DHCP
DNS Assigned by DHCP
HTTP Port 80
The DB4402-V2 is controlled trough a build in WEB Server and a standard Web browser can
be used to monitor its status or to make some adjustments. To operate the device you need to know
its IP Address. In case you are not aware of it, you can use the Network discovery feature at Local
networks.
1. Connect the device to the local network or to the Internet by LAN cable;
2. Open a new WEB Browser and enter the device IP address in the address eld then press
[Enter]. A new WEB browser with DB4402-V2’s Main window will appear;
3. To access the device’s settings press [Settings], the default values are username: admin and
password: pass.
NETWORK DISCOVERY
If you have already enabled this function on your computer just open a new Explorer bar and
click on Network. The device must be displayed. If not follow the instructions below.
1. Open Advanced sharing settings by clicking the Start button, and then on “Control Panel”.
In the search box, type “network”, click “Network and Sharing Center”, and then, in the left
panel click “Change advanced sharing settings”.
2. Select your current network prole.
3. Click Turn on network discovery, and then click Save changes. If you’re prompted for an
administrator password or conrmation, type the password or provide conrmation.
4. To access the device open a new Explorer bar and click on Network. If you have successfully
enabled the network discovery option, the device will be displayed. Double click on
DB4402-V2 will open a new WEB browser with the Main window.
5. To access the device’s settings press [Settings], the default values are username: admin and
password: pass.
NOTE: If the port is different than the default one (80), it is necessary to specify it, for example:
http://192.168.1.2:9000
ATTENTION: Depending on Internet Protocol Settings, the assigned IP address may not be
visible outside your local network, thus the device may be accessed only within that network.
Consult with your network administrator for the appropriate IP settings.