GalileoSky GLONASS/GPS Satellite v4.0, Руководство пользователя

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GALILEOSKY GLONASS/GPS Satellite v4.0 (0223) User’s manual
GalileoSky Ltd. Page 43
9.5.3 Protocol
The Terminal has its own data transmission protocol developed by GalileoSky Ltd.
During device operating and data sending to the server, the following stages are possible:
1) Initialization of TCP/IP connection (does not need any additional settings);
2) Sending of initialization data described in the Head packet column (the data to be sent to the server
are ticked in the first column);
3) If the Terminal has passed the first two stages, it starts sending accumulated packets according to
the format described in the Main packet column.
To send the data the modem establishes a server connection and keeps it active even after sending the
packet. It is done to save server connection traffic used to establish the connection.