SARA-G3 series - System Integration Manual
UBX-13000995 - R06
Objective Specification
System description
Page 78 of 218
1.13.4
TCP/IP and UDP/IP
Not supported by SARA-G300 and SARA-G310 modules.
Via the AT commands it is possible to access the TCP/IP and UDP/IP functionalities over the Packet
Switched data connection. For more details about AT commands see the
u-blox AT Commands Manual
[2].
Using the embedded TCP/IP or UDP/IP stack, only 1 IP instance (address) is supported. The IP
instance supports up to 7 sockets. Using an external TCP/IP stack (on the application processor), it is
possible to have 3 IP instances (addresses).
Direct Link mode for TCP and UDP sockets is supported. Sockets can be set in Direct Link mode to
establish a transparent end-to-end communication with an already connected TCP or UDP socket via serial
interface. In Direct Link mode, data sent to the serial interface from an external application processor is
forwarded to the network and vice-versa.
To avoid data loss while using Direct Link, enable HW flow control on the serial interface.
1.13.5
FTP
Not supported by SARA-G300 and SARA-G310 modules.
SARA-G350 modules support the File Transfer Protocol functionalities via AT commands. Files are read
and stored in the local file system of the module. For more details about AT commands see the
u-blox
AT Commands Manual [2].
1.13.6
HTTP
Not supported by SARA-G300 and SARA-G310 modules.
HTTP client is implemented in SARA-G350 modules: HEAD, GET, POST, DELETE and PUT operations
are available. The file size to be uploaded / downloaded depends on the free space available in the local
file system (FFS) at the moment of the operation. Up to 4 HTTP client contexts can simultaneously be
used.
For more details about AT commands see the
u-blox AT Commands Manual [2].
1.13.7
SMTP
Not supported by SARA-G300 and SARA-G310 modules.
SARA-G350 modules support SMTP client functionalities. It is possible to specify the common parameters
(e.g. server data, authentication method, etc. can be specified), to send an email to a SMTP server.