Sony Ericsson GM47 - Manual (Page 16)

GM47/GM48 INTEGRATOR’S MANUAL
16
LZT 123 7263 R1C
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.
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.
Signals
and power
60 pin
system connector
TE
(Application)
MS
(GM47)
Antenna
connector