Specifications

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GSM
(Global System for Mobile communication)
Connection time between GSM modems is 4 – 8 seconds
(using the V.110 protocol).
GSM makes the wireless transfer of voice/text/images between different
types of equipment possible, but only within the coverage area of a network
operator's base transceiver station. It is possible to use GDW-11 / GD-01 on
different operators networks and between different countries (Roaming).
The number of users of GSM equipment has, after standardisation, increased
rapidly, primarily with voice services, but a major increase is now also occurring
within industrial applications, in particular M2M communication, (Machine to
Machine).
This can be to transfer data or alarms from a number of slave units to a master
system or the transfer of data from or between parking meters and other
similar equipment. The application and possibilities are endless.
Architecture of a GSM Network
ME (Mobile Equipment): Each ME unit has a unique identification IMEI-number, (Inter-
national Mobile Equipment Identy). This makes it possible for the network operator
to block the use of a unit, e.g. when a ME unit has been stolen.
SIM (Subscriber Identity Module): The
SIM-card is furnished by the network
operator and holds data such as:
telephone number, PIN code, address
book etc.
BTS (Base Transceiver Station): Is a
base radio station, i.e. a transmitter
and receiver that makes it possible to
communicate with some form of ME.
BCS (Base Station Controller): Is a
substation that communicates with
the base radio station. The substation
can communicate with a number of base stations.
MSC (Mobile Switching Centre): Makes forwarding to an analogue, PSTN (Public
Switched Telephone Network) or an ISDN (Integrated Services Digital Network) digital
network possible.
PSTN
ISDN
...
BTS
BTS
BTS
MS
MS
MS
BSC
BSC
MSC
AUDIN - 8, avenue de la malle - 51370 Saint Brice Courcelles
Tel : [phone] - Fax : [phone] - Web : http: www.audin.fr - Email : [e-mail]