65 Aleksandar Stamboliyski Str., 8000 Bourgas, Bulgaria
Tel: +359 56 820027, Fax: +359 56 836700
E-mail: office@devabroadcast.com ,Web: www.devabroadcast.com
- 5 -
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
Prior to connecting/using the GSM modem for the first time, kindly read the manufacturer’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
custom made cable and a terminal program of any kind should be used. The cable specifications
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
”.
