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65 Aleksandar Stamboliyski Str., 8000 Bourgas, Bulgaria

Tel: +359 56 820027, Fax: +359 56 836700

E-mail: [email protected] ,Web: www.devabroadcast.com

- 9 -

Technical Specifications

OPERATING MODES

Two-way

Full-duplex RTP

Receiver

IP Audio Client, RTP

File Player

SD Card based player

AUDIO CODECS

Channels

1 or 2

Sample Rates

32 kHz, 44.1 kHz, 48 kHz

Codec

MPEG-1 Layer 3; HE-AAC (v.1 and v.2); 16-bit PCM

Bitrates (Encoding)

Up to 320 kbps (MPEG-1); Up to 88 kbps (HE-AAC); 

Up to 1536 kbps (PCM);

Bitrates (Decoding)

All standard bit rates, including VBR

AUDIO BACKUP

Source

Any of the available sources; Up to 3 configurable backups

Trigger

Audio Silence Detector

Threshold

Adjustable, -90dBFs to 0dBFs

Trigger time

Adjustable, 1s to 240s

FILE PLAYER

Storage

microSD Card

Supported codecs

MPEG-1 Layer 3, HE-AAC (v.1 and v.2)

Supported file types

*.MP3, *.AAC, *.M4A, *.M3U

Playback modes

Alphabetical  ascending  and  descending,  Shuffle,  Playlist  and 

Shuffled playlist

Remote file management

Build-in FTP server

ANALOG AUDIO INPUT

Connector

2 x 1/4” (6,3mm) phone jack; 

Shared with Digital input, software selectable

Type

Balanced

Impedance

600Ω or High Impedance, software selectable

Level (0 dBFS)

-12dBu to +18dBu, software selectable 

Frequency response

±0.5dB, 10Hz-20kHz

Distortion

<0.01% THD+N

Dynamic range

>100 dB

ANALOG AUDIO OUTPUT

Connector

2 x 1/4” (6,3mm) phone jack;

Shared with Digital output, Soft. select

Type

Balanced

Impedance

600Ω or High Impedance, software selectable

Level (0 dBFS)

-12dBu to +18dBu, Software selectable 

Frequency Response

±0.5dB, 10Hz-20kHz

Distortion

<0.01% THD+N

Dynamic range

>100 dB

Содержание DB910

Страница 1: ...MAINTENANCE AND OPERATION INSTRUCTION MANUAL Publish Date 25 Nov 2022 DB910 Full Duplex Compact IP Audio Codec ...

Страница 2: ...d inspection 15 Mounting 16 Heat Dissipation 16 Radio Frequency Interference 16 Basic Setup 17 Analog Audio Inputs 17 Digital Audio Input 17 Analog Audio Outputs 17 Digital Audio Output 17 LAN port 17 WEB Interface 18 Network Discovery 18 Access 18 WEB Interface Menu pages 19 Status 19 Settings 21 Full Duplex 22 Full Duplex Connection 22 Full Duplex TX 22 Full Duplex RX 22 Digital Input 23 Analog ...

Страница 3: ...A 37 How to Set a pair of DB910 to work in Full Duplex Mode 37 Full Duplex audio transmission 37 DB910 Set up 37 Server DB910 set up 38 Client DB910 set up 39 APPENDIX B 40 How should I configure the connection between my DEVA Device and an FTP Client 40 1 FTP Server Settings 40 2 IP Router and Port Translation Settings 40 3 Example of FTP Client FileZilla Settings 41 WARRANTY TERMS AND CONDITIONS...

Страница 4: ...THIS PAGE IS INTENTIONALLY LEFT BLANK ...

Страница 5: ...eliable business partner and a valuable asset as our dealers worldwide would confirm 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 offers complete line of high quality and competitive products for FM and Digital Radio Radio N...

Страница 6: ...ion 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 notification will appear only once Reference Name on Page XXX References and links refer to New Connection see Monitoring on page 56 Example Used when exam...

Страница 7: ...tudio to Transmitter Link and VoIP Apart from its main audio source DB910 supports several IP audio sources and a built in MP3 Backup Audio Player in addition With several backup audio sources incorporated the DB910 will immediately switch between the sources when the audio is lost and return to the main one when the audio is restored with no user intervention The audio content for the MP3 player ...

Страница 8: ...EG 3 Decoding 32 kHz 44 1 and 48 kHz sample rates support Decoding of all standard bitrates and VBR as well Auto backup switching in the event of an audio loss Build in MP3 Player 6 x General Purpose Inputs 6 x General Purpose Outputs 2 x 6 LED front panel audio level bar graphs 2 x 6 GPIO and 4 x Status LEDs and Phones output for quick diagnostics Full Control and easy setup via a standard web br...

Страница 9: ...s Trigger time Adjustable 1s to 240s FILE PLAYER Storage microSD Card Supported codecs MPEG 1 Layer 3 HE AAC v 1 and v 2 Supported file types MP3 AAC M4A M3U Playback modes Alphabetical ascending and descending Shuffle Playlist and Shuffled playlist Remote file management Build in FTP server ANALOG AUDIO INPUT Connector 2 x 1 4 6 3mm phone jack Shared with Digital input software selectable Type Ba...

Страница 10: ...el or Force Audio source trigger GPO Operating Modes Transparent two way channel or Source Audio loss indicator RS 232 Operating Modes Transparent two way channel or TCP IP to RS 232 Redirector RS 232 baud rate 9600 to 115200 bps FRONT PANEL Level Indicators 2 x 6 LED bar graphs GPIO Indicators 2 x 6 LEDs Status Indicators 4 LEDs Headphones 1 8 3 5mm phones jack SD Card microSD card slot up to 16G...

Страница 11: ...NO active IP connection Blinking at least one IP connection is active 4 MEM LED microSD card status indicator 5 LAN LED Network status indicator 6 L R LED Meters The full time LED meters allow quick and easy monitoring of the Left and Right Audio channels 7 RX TX LEDs and button Select L R LED Meter source input or output 8 Phones Output The following audio signals are reproduced through the headp...

Страница 12: ...Supply 12 V 1A 2 Left Line Analog or AES EBU Digital Input 1 4 6 3mm Phone jack female 3 Right Line Analog Input 1 4 6 3mm Phone jack female 4 Factory Defaults Reset button 5 Left Line Analog or AES EBU Digital Output 1 4 6 3mm Phone jack female 6 Right Line Analog Output 1 4 6 3mm Phone jack female 7 GPIO RS 232 port male DB15 connector 8 LAN Port standard RJ 45 port ...

Страница 13: ...www devabroadcast com 13 REAR PANEL GENERAL PURPOSE PORTS Connector Pinouts 1 GPI 6 2 TXD RS232 Tx line 3 GPI 4 4 GPI 3 5 GPI 1 6 RXD RS232 Rx line 7 GPO 6 open collector 8 GPI 5 9 GND Common Ground 10 GPI 2 11 GPO 5 open collector 12 GPO 4 open collector 13 GPO 3 open collector 14 GPO 2 open collector 15 GPO 1 open collector ...

Страница 14: ... 56 820027 Fax 359 56 836700 E mail office devabroadcast com Web www devabroadcast com 14 Block Diagram A simplified block diagram of DB910 IP Audio Encoder is shown below NO USER SERVICEABLE COMPONENTS INSIDE REFER ALL SERVICING TO QUALIFIED TECHNICAL PERSONNEL ...

Страница 15: ...ation in rooms with high humidity dusty places or other aggressive conditions Locate the device away from abnormally high RF fields Use only checked power supply cables We strongly recommend the usage of shielded cables Connect DB910 only to reliable power supply sources In case of unstable power supply please use Uninterruptible Power Supply UPS Use the device only with its top cover on to avoid ...

Страница 16: ...tion within an ambient temperature range extending from freezing to 120 F 50 C But because adjacent less efficient equipment may radiate substantial heat be sure that the equipment rack is adequately ventilated to keep its internal temperature below the specified maximum ambient RADIO FREQUENCY INTERFERENCE Although we have made provision for DB910 installation in the immediate proximity of broadc...

Страница 17: ...the device DIGITAL AUDIO INPUT Using a cable ending with a standard Phone jack connect DB910 AES EBU input to the AES EBU audio output of your equipment ANALOG AUDIO OUTPUTS Using a cable ending with two standard Phone jacks connect DB910 analog outputs to the analog audio inputs of your equipment DIGITAL AUDIO OUTPUT Using a cable ending with a standard Phone jack connect DB910 AES EBU output to ...

Страница 18: ... 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 profile 3 Click Turn on network discovery and then clic...

Страница 19: ...set priority in the relevant section If the source is manually changed or Dayparting is activated the Backup option will be deactivated and only the selected audio source will be used Meaning that in case of audio loss the DB910 will not switch to a backup source At the top of the control window is placed a constant section containing information about the input in use Date Time Uptime and session...

Страница 20: ...ed you will be notified immediately via one of the possible methods E mail SNMP and with a message alerting that the backup source is on air If a backup source is activated the following message will appear on the main screen If the mouse cursor is pointed at a label of an audio source a balloon containing information for the Codec Bit rate and Sample rate will appear as depicted above ...

Страница 21: ...56 836700 E mail office devabroadcast com Web www devabroadcast com 21 SETTINGS DB910 provides you with a protected access to the device settings To make the necessary adjustments to the device please log in as an ADMINISTRATOR The default values being username admin password pass ...

Страница 22: ...Client DB910 to connect to URL Enter URL IP address and port of the server DB910 This field is used in Client mode only Full Duplex TX Input Select Full duplex TX audio source Analog Input Digital Input or Analog Output Loopback Encoder Select Full duplex TX encoder The same CODEC must be set in Full duplex RX of the other unit Full Duplex RX Decoder Select Full duplex RX decoder The same CODEC mu...

Страница 23: ... digital and if the sum of signal level and the Gain is greater than 0dBFs the signal will be distorted Analog input Gain audio gain adjustment The Gain adjust is digital and if the sum of signal level and the Gain is greater than 0dBFs the signal will be distorted Range Select Analog input range WARNING DO NOT feed any signals that are higher than the set input range Impedance Select Analog input...

Страница 24: ...lied information For PCM uncompressed sample rate can be 32 kHz 44 1 kHz or 48 kHz For MPEG1 and HE AAC the sample rate is determined automatically from the stream Gain audio source gain adjustment The Gain adjust is digital and if the sum of signal level and the Gain is greater than 0dBFs the signal will be distorted Pre buffer The minimum amount of time in which the unit will pre buffer before p...

Страница 25: ... Client is the Main backup priority In this case it will work in Always ON mode NOTE If Silence is detected while in On Demand mode DB910 will switch to the next backup priority and will disconnect the IP Audio Client connection It will not return to IP Audio Client again before it switches to Main first RTP Receiver Specify Port Decoder Gain Pre Buffer adjustments and Multicast group IP FOR YOUR ...

Страница 26: ...s and recovery of the audio signal Do not forget to set the corresponding timeouts MP3 Audio Player The Playback Order can be changed from here The following options are available A Z Z A Shuffle Playlist and Shuffled Playlist Information on the used and available SD card storage respectively could also be found in this section Repeat and Next button to navigate through the playlist if need be are...

Страница 27: ...e played is chosen The Playback Order is also user defined Generally speaking the Jingle Player allows you to make a simple radio play out Jingle Files Upload via FTP Through the use of a standard FTP client you have the opportunity to update the backup content at will via any PC The supported format is mp3 An important requirement is that all jingles should be stored in a folder named Jingles no ...

Страница 28: ...ng the day into several parts during which a different type of audio source will be used This function will allow a broadcasting pattern based on the radio s timetable to be made Generally enable the Dayparts function in order to use it Please bear in mind that if the option is generally disabled the function will not be used nevertheless the applied settings in sections Daypart 1 to Daypart 8 ...

Страница 29: ...the positions that should be used NOTE If the Weekday is set to Never the relative daypart will not be used It is recommended the unused dayparts to be set to Never OUTPUT Analog Audio set the level of the Analog Audio output in dBu Digital Audio Enable or disable the Digital Audio output Headphones set the level of the Headphones output IP Voice Announcement Enables or disables the IP Voice Annou...

Страница 30: ... change the name of the device General section Later on it will be used as a title name on all WEB pages Customizing the name will make the device more recognizable Date Time used for manually determining the current Date and Time Copy Local Time button will set the Date Time to correspond to that of your computer SNTP Internet Time Synchronizes automatically DB910 s clock time with the Internet t...

Страница 31: ...or automatically via a DHCP Server To set static IP MASK GATEWAY and DNS addresses the DHCP should be disabled In order for the built in DHCP client to be activated the function should be enabled When the DHCP client is activated all assigned values will be shown in the relevant fields on the Status Screen If due to any reason the DHCP procedure cannot be completed DB910 will use Auto IP and will ...

Страница 32: ...you to use the Test button and generate a test e mail which upon success will be delivered to the specified E mail 1 and or E mail 2 Example of Test E mail Message DB910 Test Message Please do not reply to this e mail HTTP Server Enable Disable the HTTP Server Specify the Server Port and Session Timeout FTP Server Enable Disable the FTP Server Specify the Command and Data Ports to be used For info...

Страница 33: ... RS 232 Redirector Server Password RS 232 Redirector password Only used when Function is set to RS 232 Redirector Server GPI Function GPI1 GPI6 select GPI function Force Main Backup 1 Backup 2 will switch to the selected audio source while the pin is active Full duplex GPI option should also be configured in Full duplex settings see Full Duplex on page 22 GPO Function GPO1 GPO6 select GPO function...

Страница 34: ...is found in this section The internal storage could be deleted by pressing the Format button Factory Defaults All except IP all settings except for the Network settings IP addresses will be deleted To restore DB910 to its factory defaults press the button A new window will appear confirm that you want to restore the factory defaults and wait for the process to be completed On completion of the pro...

Страница 35: ... mail office devabroadcast com Web www devabroadcast com 35 SYSTEM LOG By pressing the View button a window with the following options will appear Pressing the Clear button will delete all recorded in the system log information Pressing the Reload button will update the displayed information ...

Страница 36: ...the unit 5 Keep the RESET button hold until the POWER led starts blinking 6 Release the RESET button 7 Wait for DB910 to reboot Upon completion of the process DB910 settings will have the following values Network Default Settings DHCP enabled WEB Server Default Settings Port 80 Username user Password pass NOTE Upon completion of the process the DHCP Client is enabled and the DB910 will obtain IP A...

Страница 37: ...evices you need to know their IP Address FULL DUPLEX AUDIO TRANSMISSION DB910 SET UP Prior to implementing the below written adjustments the following requirements should be fulfilled One of the DB910 will be set as a Server and the other one will be set as a Client Server DB910 must have a static IP address Client DB910 may have a dynamic IP address If any or both of the two devices is placed beh...

Страница 38: ...er and leave URL field empty 3 If GPIO and COM Port are to be used set the appropriate mode in the same section 4 In section Full duplex TX set the desired Input Encoder and Quality The same CODEC must be set as Decoder in Client DB910 s Full Duplex RX section 5 In section Full duplex RX set the desired Decoder and Pre buffer The same CODEC must be set as Encoder in Client DB910 s Full Duplex TX s...

Страница 39: ...address or URL of DB910 Server in the URL field 4 If GPIO and COM Port are to be used set the appropriate mode in the same section 5 In section Full duplex TX set the desired Input Encoder and Quality The same CODEC must be set as Decoder in Server DB910 s Full Duplex RX section 6 In section Full duplex RX set the desired Decoder and Pre buffer The same CODEC must be set as Encoder in Server DB910...

Страница 40: ...ge of FileZilla https filezilla project org This is a widespread open source software distributed free of charge hence available for downloading from the Internet NOTE The FTP Server can manage only one connection at a time The FTP Server works in Passive mode Hence the FTP Client should also be set in passive mode 2 IP Router and Port Translation Settings If the connection to the device is made t...

Страница 41: ...ases FileZilla s Quick connect feature is not able to connect with the DEVA unit That is why we recommend the device to be assigned in the program manually Enter the FTP Client and go to File Site manager New Site A dialog box requiring obligatory information about the device will appear Fill in the needed information and press OK Select Transfer Settings sub menu and apply the settings as shown b...

Страница 42: ...pply to damage caused by misuse abuse accident or neglect This Warranty is voided by unauthorized attempts at repair or modification or if the serial identification label has been removed or altered III TERMS OF WARRANTY DEVA Broadcast Ltd products are warranted to be free from defects in materials and workmanship A Any discrepancies noted within TWO YEARS of the date of delivery will be repaired ...

Страница 43: ... mail Phone Fax Which DEVA Broadcast Ltd product did you purchase Product Serial Purchase date Installation date Your signature Signing this warranty registration form you are stating that all the information provided to DEVA Broadcast Ltd are truth and correct DEVA Broadcast Ltd declines any responsibility for the provided information that could result in an immediate loss of warranty for the abo...

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