Product Description

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• Mobile devices, as PDA, phone, field equipment, through Bluetooth connection or RS232
serial connection.
In slave mode gateway supports communication protocol between host and gateway that has to
be the same through all the interfaces:
• USB
• RS232
• Bluetooth
• GSM/GPRS* (by socket connection- see sws gateway application conf 2)
As all the interfaces can be seen as serial interfaces a serial protocol will be developed. All the
interfaces will be available at the same time but communication will be with one of them at a time.
A specific command will be developed to set the communication mode and to switch to another
(see Set Gateway Mode command).
4.1.1.2 SWS Gateway Application (Configuration 2 – GSM)
In this configuration two operating modes are possible:
1. Autonomous gateway(
In this mode gateway is in standalone mode, without any external devices connected to it and
communicates only via radio with DXT in the SR network, collecting data sent by each DXT in a log
file stored in flash, and sending it at preprogrammed interval (once a day) through GPRS network to
an FTP server.
2. Controlled mode
In this mode, gateway is always connected to GSM/GPRS network , or always connected via USB or
RS232 to the server and wait commands from it.
In this mode all the command /answer should follow the serial protocol described in next paragraph.
If GPRS/GSM connection is active, same protocol as described in next paragraph will be available
through socket connection.
.