DEVA Broadcast DB9000-STC User manual

MAINTENANCE AND OPERATION
INSTRUCTION MANUAL
Publish Date: 21-Jul-2023
DB9000-STC
DSP-Based Stereo Generator
with
RDS/RBDS Encoder

Contents
Introduction........................................................................................................................................ 6
Typographic conventions .................................................................................................................. 7
General Information.......................................................................................................................... 8
Application ...................................................................................................................................... 8
Product Features ................................................................................................................................ 9
Technical Specications ................................................................................................................ 10
Block Diagram .............................................................................................................................. 12
Safety Warning................................................................................................................................. 13
Operating Recommendations ......................................................................................................... 14
Unpacking and inspection ............................................................................................................... 15
Mounting........................................................................................................................................... 15
Rack Requirements 1U .................................................................................................................. 15
Rack Requirements Compact Units............................................................................................... 15
Stand-Alone Devices ..................................................................................................................... 15
AC Mains Power .............................................................................................................................. 16
Fuse holder.................................................................................................................................... 16
Mains Voltage Selector.................................................................................................................. 16
Power cord .................................................................................................................................... 16
Ground Loops................................................................................................................................ 16
Mains Voltage Selector Location ................................................................................................. 17
Getting Started ................................................................................................................................ 18
Connection .................................................................................................................................... 18
Network Settings............................................................................................................................ 19
Network Discovery ........................................................................................................................ 19
Network Security Recommendations ............................................................................................ 20
Panel Indicators and Appointments............................................................................................... 21
Front View ..................................................................................................................................... 21
Rear View ...................................................................................................................................... 22
Connecting of DB9000-STC ........................................................................................................... 23
Analog Audio Inputs ..................................................................................................................... 23
Digital Audio Input........................................................................................................................ 23
LAN Port ....................................................................................................................................... 23
RS-232 COM Port ......................................................................................................................... 23
Operation.......................................................................................................................................... 24
Network Discovery ........................................................................................................................ 24
Access............................................................................................................................................ 24
WEB Interface ............................................................................................................................... 24
Status ............................................................................................................................................. 26
General Conguration .................................................................................................................. 28
Device Alias ............................................................................................................................. 28
Date and Time........................................................................................................................... 28
Network Conguration.................................................................................................................. 29
General Network Settings ........................................................................................................ 29
IP Voice Announcement ............................................................................................................ 30
WEB Server Settings ................................................................................................................ 30

FTP Server Settings.................................................................................................................. 30
SNMP Settings.......................................................................................................................... 30
Backup Audio Conguration......................................................................................................... 31
Audio Loss and Audio Recover................................................................................................. 31
MP3 Audio Player Settings ..................................................................................................... 32
RS-232 COM Port Conguration.................................................................................................. 33
RS-232 Settings ........................................................................................................................ 33
Ethernet to RS-232 Redirector ................................................................................................. 33
Stereo Encoder Conguration....................................................................................................... 34
General Settings ...................................................................................................................... 34
Audio Input ............................................................................................................................... 34
Injection Levels......................................................................................................................... 34
Phase Adjustment ..................................................................................................................... 35
MPX Limiter ............................................................................................................................. 35
Output Levels............................................................................................................................ 35
Audio Enhancement Conguration ............................................................................................... 36
Automatic Gain Control Settings.............................................................................................. 36
Audio Equalizer Settings .......................................................................................................... 37
RDS Encoder Conguration ......................................................................................................... 38
RDS Encoder Settings............................................................................................................... 38
Program Station Name Settings ............................................................................................... 38
Radio Text Settings ................................................................................................................... 39
General Settings ....................................................................................................................... 39
Trac Information..................................................................................................................... 40
Decoder Information ................................................................................................................ 41
Date & Time Settings................................................................................................................ 41
Program Type Name Settings ................................................................................................... 41
Console Settings ....................................................................................................................... 42
AF List Conguration ................................................................................................................... 43
Factory Defaults Settings ............................................................................................................. 44
General Default Settings .......................................................................................................... 45
Network Default Settings.......................................................................................................... 45
Backup Audio Default Settings................................................................................................. 45
COM Port Default Settings ...................................................................................................... 46
Stereo Encoder Default Settings............................................................................................... 46
Audio Enhancement Default Settings ....................................................................................... 46
RDS Encoder Default Settings.................................................................................................. 47
AF List Default Settings........................................................................................................... 47
Hardware Reset ............................................................................................................................. 48
Network Default Settings.......................................................................................................... 48
WEB Server Default Settings.................................................................................................... 48
Rebooting ..................................................................................................................................... 49
Firmware Update ......................................................................................................................... 50
RDS Console..................................................................................................................................... 51
Connecting to the RDS console..................................................................................................... 51
RDS Console Syntax...................................................................................................................... 51
List of available RDS Console commands and responses............................................................. 52

UPnP discovery in Local Networks ................................................................................................ 53
UPnP Activation ............................................................................................................................... 54
APPENDIX A ................................................................................................................................... 55
RDS: Europe vs America .............................................................................................................. 55
The RDS System ........................................................................................................................... 55
APPENDIX B.1 ................................................................................................................................ 56
PTY Code Description Used in RBDS Mode – North America..................................................... 56
APPENDIX B.2 ................................................................................................................................ 57
PTY Code Description Used in RDS Mode – Europe, Asia .......................................................... 57
WARRANTY TERMS AND CONDITIONS................................................................................. 58
Product Registration Card.............................................................................................................. 59

THIS PAGE
IS INTENTIONALLY
LEFT BLANK

65 Aleksandar Stamboliyski Str., 8000 Bourgas, Bulgaria
Tel: [phone], Fax: [phone]
E-mail: o󰀩[email protected] ,Web: www.devabroadcast.com
- 6 -
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 Broadcast 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-eective and innovative broadcast products.
Creativity and innovation are deeply woven into DEVA Broadcast 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 Broadcast 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 Broadcast enhances the reputation of our partners and clients alike.
Furthermore, we have already a proven merit as a credible partner provider.
Our portfolio oers 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 Broadcast products are their clear-cut, streamlined design, easiness of use and
cost-eectiveness: 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 Broadcast 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 Broadcast 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 Broadcast 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: o󰀩[email protected] ,Web: www.devabroadcast.com
- 7 -
Typographic conventions
The following table describes important conventions used in the manual.
Convention and Style Description Examples
Menu > Sub Menu >
Menu Command
A menu item(s) and menu
command that you need to click
in sequence
Click Settings > General
[Button] Interface Interactive buttons Press [OK] to save the changes
NOTE Important notes and
recommendations
NOTE: The notication will appear
only once
“Reference Name” on
Page XXX
References and links refer to “New Connection”
(see “Monitoring” on page 56)
Example Used when example text is cited Example for E-mail Notication:
Date: 04 Nov 2013, 07:31:11

65 Aleksandar Stamboliyski Str., 8000 Bourgas, Bulgaria
Tel: [phone], Fax: [phone]
E-mail: o󰀩[email protected] ,Web: www.devabroadcast.com
- 8 -
General Information
DB9000-STC is a high-performance, 32bits DSP based Stereo Generator with built-in RDS/
RBDS encoder. It has been accurately designed to satisfy the most demanding requirements in FM
Stereo generation and advanced RDS/RBDS encoding. This Stereo Encoder accept both of types,
Analog and Digital AES/EBU audio sources. DB9000-STC comes with easy to use and password
protected Web Server and a comprehensive remote control features. It supports SNMP, RS232,
UDP, TCP/IP communication protocols. Its digital architecture guarantees long term reliability and
easy rmware updates, directly on eld or from remote.
The built-in RDS encoder can ‘parse’ scrolling text, automatically breaking phrases into word
groups. It gives dynamic, on-the-y programming access with its built-in USB, TCP/IP, UDP/
IP interfaces. This connectivity permits full integration of RDS/RBDS transmissions with the
station’s other networked functions, including message streams for digital radio and Webcasting. It
can be easily interfaced to various Automation Systems and oers an ASCII protocol for broadcast
song/artist information.
Another great feature of the DB9000-STC is that it can ght the dreaded dead air problem.
The DB9000-STC provides additional uncompromising security in case of loss of audio at the
audio inputs. The audio backup is presented as an integrated built-in MP3 audio player. The basic
principle of operation is that this unit can detect the silence and switch the output to the alternative
MP3 Player. The MP3 backup audio les and play lists can be uploaded in the device from your
PC using any FTP client. The audio storage capacity of DB9000-STC is 2 Giga Bytes.
Based on the latest DSP technology, the DB9000-STC is fully digital design for 24/7/365
operation. This product is the most cost eective, versatile and reliable solution designed for the
broadcasters looking for a complete solution for a single, or a multiple transmitter sites.
APPLICATION
• On site DSP-Based Stereo and RDS encoding
• Ethernet to RS-232 Redirector
• Audio Backup on connection or audio loss
• Audio Rebroadcast

65 Aleksandar Stamboliyski Str., 8000 Bourgas, Bulgaria
Tel: [phone], Fax: [phone]
E-mail: o󰀩[email protected] ,Web: www.devabroadcast.com
- 9 -
Product Features
• Fully Digital 32 bits DSP Stereo Encoder
• Excellent Audio Performances
• Digital Volume Control of all Audio Inputs
• Adjustable Pilot, L-R, RDS phases
• Selectable pre-emphasis 0, 50µs, 75µs
• Digitally adjustable Pilot & RDS injection levels
• Fully Digital Synthesis of the RDS Signal
• Intelligent Silence Detector and Backup Audio Player
• Conguration and Monitoring via SNMP Ver.2C & WEB
• Alert Notications via E-mail, SNMP in case of Audio Loss
• Lots of Storage for over 24 hours of non-repeating audio playback
• Always Fresh Backup Audio Tracks with Embedded FTP server
• Professional Balanced Stereo Analog Input on XLR connectors
• Professional Digital AES/EBU Audio input on XLR connectors
• Headphones Jack for local monitoring of the Audio Signal
• Built-in MP3 Player with built in 2GB SD Card
• UPnP for easy discovery in Local Networks
• Professional 19 inches, 1U Professional rack mount chassis
• Remote Firmware Upgrade for future-proof operation
• Protected access to the device settings
• Easy installation and operation
• 2 Years Warranty

65 Aleksandar Stamboliyski Str., 8000 Bourgas, Bulgaria
Tel: [phone], Fax: [phone]
E-mail: o󰀩[email protected] ,Web: www.devabroadcast.com
- 10 -
TECHNICAL SPECIFICATIONS
ANALOG AUDIO INPUT
Connector 2 x XLR, Stereo
Type Balanced
Impedance 600Ω or High Impedance
Level +6dBu / +12dBu, user selectable
Sample rate 96 kHz; Build-in sample rate converter used to produce lower
sample rates
Dynamic range >100dB
DIGITAL AUDIO INPUT
Connector XLR
Type AES/EBU (IEC 60958)
Resampling Thru build-in sample rate converter
AUDIO BACKUP
Trigger Audio Silence
Threshold Adjustable, -90dBFs to 0dBFs
Trigger time Adjustable, 5s to 240s
Storage SD Card, up to 2GB
Supported le types *.MP3, *.AAC, *.M4A, *.M3U
Playback modes Alphabetical ascending and descending, Shue, Playlist and
Shued playlist
Remote le management Build-in FTP Server
STEREO ENCODER
Type Fully DSP Stereo Encoding
Pre-emphasis 0, 50, 75µs
AGC 5 presets, 2 user dened
Equalizer 3-Band, ±12dB range
Stereo separation >55dB (typically >60dB)
Phase Adjust Pilot, L-R, RDS
Injection Levels Adjust Pilot, RDS
Output Connector BNC, Unbalanced
Output Level Adjust Digitally, up to 0dBu
Composite MPX Limiter 6 presets, 3 user dened
RDS ENCODER
Supported RDS Applications PI, PS, Dynamic PS AF, RT, TP, TA, DI, M/S, PIN, PTY, PTYN
Conguration Web Interface
Automation control Remote TCP console
Output Connector BNC, Unbalanced
Output Level Adjust Digitally, up to -6dBu

65 Aleksandar Stamboliyski Str., 8000 Bourgas, Bulgaria
Tel: [phone], Fax: [phone]
E-mail: o󰀩[email protected] ,Web: www.devabroadcast.com
- 11 -
PHONES AUDIO OUTPUT
Connector 1/4” (6.3mm) Phone Jack, Stereo
Type Headphones
USER INTERFACE
Indicators 4 LEDs on front panel, 2 LEDs on rear panel
Web interface Full control and status information
RS-232
Type TCP/IP to RS-232 Redirector
Connector DB-9, female
Baud rates 9600 to 115200
Password protection Yes
NETWORK
Connector RJ-45
Type Ethernet

65 Aleksandar Stamboliyski Str., 8000 Bourgas, Bulgaria
Tel: [phone], Fax: [phone]
E-mail: o󰀩[email protected] ,Web: www.devabroadcast.com
- 12 -
BLOCK DIAGRAM
A simplied block diagram of DB9000-STC is shown below
DAC
ANALOG
AUDIO
L
R
WEB SERVER
FTP SERVER
RS-232 REDIRECTOR
RDS CONSOLE
BACKUP PLAYER
POWER
LAN DIGITAL
AUDIO
S/PDIF
RX
PHONES
DSP
RS-232
SD CARD
STEREO ENCODER
RDS ENCODER
MPX LIMITER
AGC
EQUALIZER
DSP
D/A
COMPOSITE
MPX
RDS
ADC
Because of the all-digital, minimalist-discrete-component nature of device circuitry, we have not
provided schematic diagrams of the DB9000-STC in this Manual. Please, note that:
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: o󰀩[email protected] ,Web: www.devabroadcast.com
- 13 -
Safety Warning
ALWAYS OBSERVE THE SAFETY PRECAUTIONS.
Careful observance of the safety precautions will help prevent physical injury, damage of the
equipment, and extend the equipment life.
• The servicing of electronic equipment should be performed only by qualied personnel;
• Before removing the covers the unit must be switched o and the mains cable unplugged;
• When the equipment is open, the power supply capacitors should be discharged using a
suitable resistor;
• Never touch the wires or the electrical circuits;
• Use insulated tools only;
• Never touch the metal semiconductor. They might carry high voltages;
• For removing and installing electronic components, follow the recommendations for
handling MOS components.
• Do not remove the factory sticker from the equipment. It contains information as regards
the name, serial number and MAC address of the device.
• To join the equipment to the mains supply, use the power cord purchased with the equipment.

65 Aleksandar Stamboliyski Str., 8000 Bourgas, Bulgaria
Tel: [phone], Fax: [phone]
E-mail: o󰀩[email protected] ,Web: www.devabroadcast.com
- 14 -
Operating Recommendations
To ensure normal operation of the DEVA unit, we recommend following the instructions listed
below.
• Install the unit in places with good air conditioning. The unit is designed to operate within the
ambient temperature range of 10 to 50°C. The equipment rack should be ventilated in order
for the device to keep its internal temperature below the maximum ambient temperatures;
• We do not recommend installation in rooms with high humidity, dusty places or other
aggressive conditions;
• Although the device is intended to be installed closed to exciters or transmitters, we do
recommend the device to be located away from abnormally high RF elds.
• Use only checked power supply cables. We strongly recommend the usage of shielded
cables;
• Connect the DEVA unit to reliable power supply sources only. In case of unstable power
supply, please use Uninterruptible Power Supply (UPS);
• Use the device only with its top cover on to avoid electromagnetic anomalies. Otherwise,
this may cause problems with the normal functionality of the unit;
• To ensure normal remote operation of the unit, make sure to connect the device to a good
quality Internet connection;
• For the normal operation of your DEVA device, check if the network settings past through
all the required data trac.

65 Aleksandar Stamboliyski Str., 8000 Bourgas, Bulgaria
Tel: [phone], Fax: [phone]
E-mail: o󰀩[email protected] ,Web: www.devabroadcast.com
- 15 -
Unpacking and inspection
Upon receipt, the equipment should be inspected for possible shipping damages. If such are
found or suspected, notify the carrier at once and contact DEVA Broadcast Ltd. The original
shipping carton box and packing materials should be kept for possible reuse, in case of return for
Warranty repair, for example. Shipping damages as a result of improper packing for return may
invalidate the Warranty!
The packing material (plastic bags, polystyrene, nails, etc.) must never be left within reach
of children, as these items are potential sources of danger.
IT IS VERY IMPORTANT that the “Product Registration Card” included in the Manual be
completed accurately and returned. This will assure coverage of the terms of the Warranty and it will
provide a means of trace in case of lost or stolen equipment. In addition, the user will automatically
receive SERVICE OR MODIFICATION INSTRUCTIONS from DEVA Broadcast Ltd.
Mounting
RACK REQUIREMENTS 1U
The unit mounts in a standard 19-inch equipment rack and requires only 1¾ inches (1U) of
vertical rack space. In order the painted nish around the mounting holes to be protected, the use
of plastic washers is recommended.
RACK REQUIREMENTS COMPACT UNITS
Our customized 1U 19-inch rack accessory provides a professional mounting option for up to
three compact size DEVA units. It is made of milled aluminum and nished in black powder coat.
Two extra blanking panels and set of mounting screws are provided with each rack bracket kit.
STAND-ALONE DEVICES
DEVA’s stand-alone units (Radio Explorer series, BandScanner series, DVB Explorer) do not
require additional tools or installation brackets.

65 Aleksandar Stamboliyski Str., 8000 Bourgas, Bulgaria
Tel: [phone], Fax: [phone]
E-mail: o󰀩[email protected] ,Web: www.devabroadcast.com
- 16 -
AC Mains Power
FUSE HOLDER
The fuse holder is placed inside the unit, next to the voltage selector. Apply downward pressure
and pull the cap outward to access the 5mm mains fuse. The reverse process will release the cap.
MAINS VOLTAGE SELECTOR
Before connecting the AC Power, make sure that the internal Power Switch is in accordance
with the mains supply at your location. The Power Supply Factory Settings are:
- 100 - 240 VAC
- 1 Amp Fuse
CAUTION: Permanent damage will result if improper AC supply voltage is applied to the
device. The warranty DOES NOT cover damages caused by applying improper supply voltage or
usage of improper fuse.
POWER CORD
The detachable IEC-type power cord is supplied with the unit. The individual cord conductors
may be color-coded in either of two ways:
1) In accordance with US standards:
BLACK = AC “HOT”
WHITE = AC NEUTRAL
GREEN = EARTH GROUND
2) To European CEE standards:
BROWN = AC “HOT”
BLUE = AC NEUTRAL
GREEN/YELLOW = EARTH GROUND
GROUND LOOPS
Because the unbalanced INPUTS/OUTPUTS of the device are chassis-ground-referenced, a
mains frequency or INPUT/OUTPUT ground loop could be formed between the input or output
cable shield grounds and the AC power cord ground. A ‘ground-lifting’ AC adapter may help in
this situation, although the chassis must be properly grounded for safety purposes. In general, the
equipment being installed in a rack will satisfy the safety requirement.

65 Aleksandar Stamboliyski Str., 8000 Bourgas, Bulgaria
Tel: [phone], Fax: [phone]
E-mail: o󰀩[email protected] ,Web: www.devabroadcast.com
- 17 -
MAINS VOLTAGE SELECTOR LOCATION
Unless specically ordered for export shipment, the DB9000-STC is set at the factory for
operation from 115V/230V, 50/60Hz AC mains. This can be conrmed by checking the voltage
selector inside the unit. To change the mains voltage, rst remove the top cover of the unit. A
clearly marked slide switch is next to the AC mains connector on the encoder circuit board. With
power disconnected, use a small screwdriver to set the switch for 115VAC or 230VAC operation.
Be sure to install the appropriate fuse, DB9000-STC is equipped at the factory with 1A fuse.
230V 115V

65 Aleksandar Stamboliyski Str., 8000 Bourgas, Bulgaria
Tel: [phone], Fax: [phone]
E-mail: o󰀩[email protected] ,Web: www.devabroadcast.com
- 18 -
Getting Started
In order for the normal operation of the DB9000-STC 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 DB9000-STC to the TCP/IP network using direct network cable;
5. IF GSM OPTION IS SUPPORTED - Using the connection cable provided, connect the
optional 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.

65 Aleksandar Stamboliyski Str., 8000 Bourgas, Bulgaria
Tel: [phone], Fax: [phone]
E-mail: o󰀩[email protected] ,Web: www.devabroadcast.com
- 19 -
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
NETWORK DISCOVERY
This is a network setting that denes whether your computer can see (nd) other computers and
devices on the network and whether other computers on the network can see your computer. By
default, Windows Firewall blocks network discovery but you can enable it.
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
pane click “Change advanced sharing settings”;
2. Select your current network prole;
3. Click “Turn on network discovery”, and then click save changes.
NOTE: If you’re prompted for an administrator password or conrmation, type the password,
provide conrmation or contact your system administrator.
If you have already enabled this function on your computer DB9000-STC will be automatically
added to the Device list section. The device will be ready for usage and no additional adjustments
will be required except user name and password.
NOTE: If the port is dierent 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.

65 Aleksandar Stamboliyski Str., 8000 Bourgas, Bulgaria
Tel: [phone], Fax: [phone]
E-mail: o󰀩[email protected] ,Web: www.devabroadcast.com
- 20 -
NETWORK SECURITY RECOMMENDATIONS
1. It is not recommended the DB9000-STC to be directly connected to the Internet. This may
lead to unregulated access and/or problematic operation of the device. To ensure secure
connection, we recommend the device to be installed behind a router with an active rewall.
2. If remote access to the device is needed, we recommend using VPN to the router or the port
of the relevant service (WEB, SNMP, Application, etc.) to be properly NAT forwarded.
3. If NAT forward is used, it is highly recommended random ports of your choice to be used.
Not the standard ones (80 for WEB, 161 for SNMP, etc.).
4. Using DMZ connection is not recommended.
5. Make sure to change the standard access credentials (usernames and passwords, SNMP
communities).
For detailed information as regards the recommendations listed above or need of further
instructions, please contact your network administrator.