Sony Ericsson GM48, GM47 manual Interface between the Module and the Application

GM47/GM48 INTEGRATOR’S MANUAL

In accordance with the recommendations of ITU-T (International Telecommunication Union - Telecommunications Standardisation Sector) V.24, the TE communicates with the MS over a serial interface.

The functions of the GM47 follow the recommendations provided by ETSI (European Telecommunications Standards Institute) and ITU-T.

ETSI specifies a set of AT commands for controlling the GSM element of the module; these commands are supplemented by Sony Ericsson specific commands.

To find out how to work with AT commands, see “Part 4: Using AT Commands”, page 79.

Figure 2.2 illustrates the interface between the module and the application. The entire System Connector Interface is described in detail in “System Connector Interface”, page 41.

TE

(Application)

Signals

and power

60 pin

MS Antenna (GM47) connector

system connector

Figure 2.2 The Interface between the Module and the Application

Note! ITU-T standards define TE and TA as DTE (Data Terminal Equipment) and DCE (Data Circuit Terminating Equipment) respectively.

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