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Teilenummer | GR64 |
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Beschreibung | Modem Integrators Manual | |
Hersteller | Sony | |
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Gesamt 30 Seiten ww wwww. D. Da t aa tS ah Se eht e4 eU .t c4oUm . c o m
GR64 GSM/GPRS Modem
Integrators Manual
wwwwww.Da.DtaSahteaeSt4Uh.ecoemt4U.com
7 Hints for Integrating the Wireless Modem............................................. 75
7.1 SAFETY ADVICE AND PRECAUTIONS ........................................................................ 75
7.1.1 GENERAL ......................................................................................................... 75
7.2 SIM CARD ............................................................................................................... 76
7.3 ANTENNA ............................................................................................................... 76
7.4 INSTALLATION OF THE WIRELESS MODEM................................................................ 77
7.4.1 WHERE TO INSTALL THE WIRELESS MODEM....................................................... 77
7.4.1.1 ENVIRONMENTAL CONDITIONS..................................................................... 77
7.4.1.2 SIGNAL STRENGTH ....................................................................................... 77
7.4.1.3 CONNECTION OF COMPONENTS TO WIRELESS MODEM.................................. 78
7.4.1.4 NETWORK AND SUBSCRIPTION...................................................................... 78
7.4.2 HOW TO INSTALL THE WIRELESS MODEM.......................................................... 78
7.4.2.1 POWER SUPPLY ............................................................................................. 78
7.4.2.2 GROUNDS .................................................................................................... 78
7.4.2.3 AUDIO.......................................................................................................... 79
7.4.2.4 SOFTWARE UPGRADE .................................................................................... 79
7.5 ANTENNA ............................................................................................................... 79
7.5.1 GENERAL ......................................................................................................... 79
7.5.2 ANTENNA TYPE................................................................................................ 79
7.5.3 ANTENNA PLACEMENT ..................................................................................... 80
7.5.4 THE ANTENNA CABLE....................................................................................... 80
7.5.5 POSSIBLE COMMUNICATION DISTURBANCES ..................................................... 80
8 Embedded Applications ........................................................................ 82
8.1 FEATURES ............................................................................................................... 82
8.2 IMPLEMENTATION................................................................................................... 82
8.2.1 LIMITATIONS ................................................................................................... 82
8.2.2 M2MPOWER IDE (INTEGRATED DEVELOPMENT ENVIRONMENT).......................... 83
9 TCP/IP Stack......................................................................................... 84
9.1 IMPLEMENTATION................................................................................................... 84
10 Technical Data................................................................................... 85
10.1 MECHANICAL SPECIFICATIONS............................................................................. 85
10.2 POWER SUPPLY VOLTAGE, NORMAL OPERATION................................................... 86
10.3 RADIO SPECIFICATIONS ....................................................................................... 86
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2.2 Wireless modems in a Communication System
Figure 2.2-1 and Figure 2.2-2 illustrate the main blocks of a wireless communication
system using the wireless modem. Figure 2.2-1 shows the communication system
when the script is embedded on the wireless modem and Figure 2.2-2 shows the
communication system when a micro-controller is used. They also show the
communication principles of the system and the interface between the wireless
modem and the application. The definitions in the figures, as used elsewhere in this
manual, are in accordance with the recommendations of 3GPP TS 27.007.
The MS (mobile station) represents the wireless modem and SIM card. The wireless
modem excluding SIM card, is known as the ME (mobile equipment).
The DTE (data terminal equipment) is the controlling application. This can be either
an external host or an internal embedded application.
The DCE (data circuit terminating equipment) is the serial communication interface of
the MS.
MS
SIM
GSM
NETWORK
SIM
DC
POWER
GGSSMM
EENNGGININEE
DDCCEE
STATUS &
RESPONSE
EMBEDDED
APPLICATION
DDTTEE
COMMAND
& CONTROL
Figure 2.2-1 Main Blocks in a Wireless System (embedded application)
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12 Page | ||
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