Going from GSM data, toward GPRS/UMTS ? | Telit Cinterion IoT Developer Community
June 19, 2014 - 4:12pm, 3197 views
Hello
My name is Jean-Marc. Sorry if my English is approximative !
I'm wondering how to go from the M2M Data GSM world to the GPRS/UMTS world.
--> Imagine a PLC1 sending data to a PLC2, simply through RS232 port, using the GSM data network: just a few AT commands and the phone number of the PLC2 are required, it's very simple.
--> The problem is that the GSM data service will be discontinued soon in my country (obsolete) !!!
So, how to connect simply PLC1 to PLC2 via 2 RS232 ports ?
My understanding of the situation is: PLC1 and PLC2 have to be connected to (e.g.) MC55iT or BGS5T, including a TCP stack.
PLC2 must be a TCP socket server, so as PLC1 can call PLC2 through a socket client. After connection, the data will be sent/received easily on the RS232 ports, is this right ?
What will be necessary ? A fix IP or is it possible to use a DynDNS service ? Is there any tutorial ?
My knowledge in this is pretty limited, so I need some guidelines to undertand and then proceed to my design.
Many thx for any helping !
Jun 20 2014 - 7:24pm
Hello Jean-Marc,
So You were using a Circuit Switched Data connection.
For using GPRS/UMTS connection You can use one of our modules and connect it via RS232 and using AT commands set up a server on one and a client on other and exchange data easily.
Regarding the IP it depends. If the SIM cards will have a private APN number and will be in the same
private network then You won't need anything special but if You will have regular SIM cards then the one
which will be used as the server will need to have a public IP address.
For setting up a server and a client there are examples in our AT Command Set documents of each module so You should't have a problems with finding it.
Best Regards,
Grzegorz Rutkowski
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