DEVA Broadcast DB44 User manual
USER MANUAL
Publish Date: 06-Mar-2018
GSM Modem Option
Compatible with:
DB44, DB45, DB4004, DB7000, DB7007
65 Aleksandar Stamboliyski Str., 8000 Bourgas, Bulgaria
Tel: +359 56 820027, Fax: +359 56 836700
E-mail: of[email protected] ,Web: www.devabroadcast.com
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GSM MODEM OPTION - FEATURES AND USAGE
The described Features and Usage of the GSM Option is compatible with following DEVA Units:
- DB44 – Compact FM Radio Monitoring Receiver
- DB45 – DSP-Based FM Radio Receiver and Modulation Analyzer
- DB4004 – DSP-based FM Radio Monitoring Receiver
- DB7000 – FM Radio Re-Broadcast Receiver with Built-in IP Audio & MP3 Backup Players
- DB7007 – Advanced FM Radio Re-Broadcast Receiver with IP Audio & MP3 Backup Players
The DEVA FM Monitoring receivers supports a very wide range of GSM Modems. However,
we suggest the usage of the following model - Sierra Wireless AirLink. This is the modem that is
provided from DEVA Broadcast if the feature has been ordered along with the DEVA Unit.
The GSM modem model is directly PIN to PIN compatible with the DEVA Unit GSM Modem’s
connector, and by simply using a direct cable, you will have not any troubles with the data
communication and audio insertion.
Before connecting the GSM Modem to the DEVA Unit, it is necessary to set up the parameters
for normal operation. Please bear in mind that:
• GSM modem does not have an automatic detection of the baud rate (AUTOBAUD
function). The most important thing is to set up the GSM Modem communication settings.
The Communication speed must be 9600 bps, Data Bits: 8; Parity: None; Stop Bits:1.
• TheSIMCardPINcodemustbedisabledinordertoavoidacongurationproblemofthe
modem. We suggest you to do this procedure using a GSM phone device of choice. This
will save you a lot of time for reading the GSM Modem documentation. In case you decide
to do that using the GSM Modem please refer to its User Manual for details.
IMPORTANT: Once the GSM modem is properly installed, the DEVA Unit must be pre-
conguredtoreceivemessagesfromupto5authorizednumbers.ThiscanbemadeviatheWEB
interfaceoftheDEVAUnit.Uponsuccessfulinstallation,anoticationmessagewillappearonthe
unit’sLCD/OLEDscreen(ifsuchisavailable).Usingthisscreenyoucanndthebestplacewith
good GSM Network coverage for the installation of the GSM modem.
NOTE: For information, how the DEVA Unit can be accessed via the WEB Interface, please
refer to the respective quick user guide for the device in question. All the documents are available
at www.devabroadcast.com/downloads
65 Aleksandar Stamboliyski Str., 8000 Bourgas, Bulgaria
Tel: +359 56 820027, Fax: +359 56 836700
E-mail: of[email protected] ,Web: www.devabroadcast.com
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SHORT MESSAGE SERVICES AVAILABLE
•By sending, a message with the command
Listen + the desired station (for example
“Listen 101.80”), the DEVA Unit will
retrieve you a call with short record of the station
that you have required.
•If you need the current information for
a particular station, you can use the second
command – Status + the desired station (for
example “Status 101.80”). Then DEVA Unit
will send you a message like the one depicted on
the screen.
•TheALARMDispatch-Thisisanotication
that the DEVA Unit will send to you in the cases
when a parameters drops below or exceeds
the pre-dened threshold. In case of ALARM,
the unit will send SMS to all authorized GSM
numbers.
BellowyouwillndexampleshowtousetheDEVAUnitwithGSMModemfeatures:
REMOTE AUDIO LISTENING
Type the following text and send it as SMS to the DEVA Unit’s GSM number:
Listen FFF.FF
FFF.FF is the frequency to listen to.
Upon receiving your ‘Listen’ request via SMS, the DEVA Unit will call you back and when
you take the call will hear the audio on the frequency FFF.FF
IMPORTANT: Do not include leading zeroes such as “Listen 089.90”
Fill with trailing zeroes up to two digits after decimal symbol.
Decimal symbol must be ‘.’ (not comma ‘,’).
For example: “Listen 104.50” or “Listen 91.55”.
65 Aleksandar Stamboliyski Str., 8000 Bourgas, Bulgaria
Tel: +359 56 820027, Fax: +359 56 836700
E-mail: of[email protected] ,Web: www.devabroadcast.com
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REMOTE STATUS REQUEST
The DEVA Unit can send you a report with the values of the most important FM Parameters
like RF level, MPX Level, Pilot Level, RDS Level, L&R Audio Level, Stereo/Mono Status and
RDS PI Code at any time. Upon receiving your request via SMS, the unit’s tuner will be adjusted
on the requested frequency and will make measurement of all the parameters listed above. Once
the procedure is completed, an SMS message will be generated and sent to the requestor’s GSM.
Command Example:
Status FFF.FF
FFF.FF is frequency to Tune.
IMPORTANT: Do not include leading zeroes such as “Status 089.90”
Fill with trailing zeroes up to two digits after decimal symbol.
Decimal symbol must be ‘.’ (not comma ‘,’)
For example: “Status 102.55” or “Status 88.80”.
The DEVA Units will shortly respond back with SMS with the following content (example):
STATUS:
11.07.09 09:08:34
FREQ:102.50MHz
RF Level: 55.1dBuV
MPX Level: 74.1kHz
Left: -11.7dB
Right: -12.3dB
Pilot: 7.5kHz
Stereo
RDS Level: 4.1kHz
PI:824D
65 Aleksandar Stamboliyski Str., 8000 Bourgas, Bulgaria
Tel: +359 56 820027, Fax: +359 56 836700
E-mail: of[email protected] ,Web: www.devabroadcast.com
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INITIALIZATION PROCEDURE FOR SIERRA WIRELESS AIR-
LINK FXT009 GSM MODEM
in regards with the following DEVA Units:
- DB44 – Compact FM Radio Monitoring Receiver
- DB45 – DSP-Based FM Radio Receiver and Modulation Analyzer
- DB4004 – DSP-based FM Radio Monitoring Receiver
- DB7000 – FM Radio Re-Broadcast Receiver with Built-in IP Audio & MP3 Backup Players
- DB7007 – Advanced FM Radio Re-Broadcast Receiver with IP Audio & MP3 Backup Players
1. Setting up the modem
Priortoconnecting/usingtheGSMmodemforthersttime,kindlyreadthemanufacturer’s
user manual. The document can be found on https://source.sierrawireless.com/resources/airlink/
hardware_reference_docs/airlink_fxt_series_user_guide/
The appropriate values should be assigned via the RS232 interface of the GSM modem. A
custommadecableandaterminalprogramofanykindshouldbeused.Thecablespecications
should be as follows:
To PC
DB 9 female
pin
GSM modem
DB 15 male
pin
Note
1 –> 1 Data Carrier Detect
2 –> 6 com TX
3 –> 2 com RX
4 –> 8 DTR
5 –> 9 GND
6 –> 7 DSR
7 –> 12 RTS
8 –> 11 CTS
9 –> 13 RI
Next, the following settings should be applied to the terminal program:
Speed 115200 bps.
Flow control hardware (CTS/RTS)
Parity none
Data bits 8
Stop bits 1
To check the communication type the command “AT” in the terminal program and press Enter.
The modem will/should respond with “OK”.
65 Aleksandar Stamboliyski Str., 8000 Bourgas, Bulgaria
Tel: +359 56 820027, Fax: +359 56 836700
E-mail: of[email protected] ,Web: www.devabroadcast.com
- 6 -
Upon powering on, the modem should start working with its factory settings. To see these
settings type the command “AT&V”. The modem will respond with the factory default settings:
Q:0 V:1 S0:000 S2:043 S3:013 S4:010 S5:008
+CR:0 +CRC:0 +CMEE:0 +CBST:0,0,1
+SPEAKER:1 +ECHO:0 &C:0 &D:2 %C:0
+IPR:115200 +ICF:3,4 +IFC:2,2
ATTENTION: If the displayed parameters differ from one listed above, we recommend you
to return the modem to its factory defaults. In order for this to happen, the command “AT&F1”
should be typed.
NOTE: For further information on the AT commands, please refer to the GSM Modem complete
user manual.
Once the modem is returned to its factory defaults, you can proceed with following commands:
COMMAND DESCRIPTION NOTE
ATE0 This command will turn
Echo Off
AT+ICF=3,4 8n1, no parity
AT+IFC=0,0 noowcontrol
AT+IPR=9600 set com speed Change terminal speed to 9600 bps (if needed)
AT&W saveconguration After this command turn power Off and On
AT&V displaynewconguration
NOTE: After every command, the modem should respond with “OK”.
Once all changes/modications are applied, the modem should respond with the following
adjustments:
Q:0 V:1 S0:000 S2:043 S3:013 S4:010 S5:008
+CR:0 +CRC:0 +CMEE:0 +CBST:0,0,1
+SPEAKER:1 +ECHO:0 &C:1 &D:2 %C:0
+IPR:9600 +ICF:3,4 +IFC:0,0
Upon applying all the described settings, the modem should be fully compatible for operation
with DEVA Unit.
65 Aleksandar Stamboliyski Str., 8000 Bourgas, Bulgaria
Tel: +359 56 820027, Fax: +359 56 836700
E-mail: of[email protected] ,Web: www.devabroadcast.com
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2. Connecting with DEVA Unit
Communication Cable Description:
DEVA Unit port
DB 15 female
pin
GSM modem
DB 15 male
pin
Note
2 –> 2 com TX
4 –> 4 mic (+)
5 –> 5 mic (-)
6 –> 6 com RX
9 –> 9 gnd
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