UniMod GSM-4
5
1
General
The world-wide GSM radio networks (GSM = Global System for Mobile
communication) provide besides digital voice communication the possibility
to transmit data. In this operation mode it is possible to send fax, data
(CSD: Circuit Switched Data connection), GPRS: General Packet Radio
Service) and short messages (SMS). The universal radio modem UniMod
GSM-4 is supposed for remote inquiry of measurement data of any kind,
especially however for telecounting applications.
The UniMod GSM-4 supports in the operation mode GPRS the meter data
communication according to DIN 43863-4 (IP-Telemetry).
1.1
Requirements
The UniMod GSM-4 can be used in any EGSM 850/900/1800/1900 MHz
network with an arbitrary number of providers. It requires however the in-
frastructure for operating mobile stations with 2 Watt (Class 4; 850/900
MHz) or 1 Watt (Class 1; 1800/1900 MHz) transmission power. The modem
supports an interface for 3V SIM cards. For communication a SIM card with
call number for 9600 Baud transmission is needed.
For the UniMod GSM-4 communication modules produced by internation-
ally renowned companies are used. These companies update their soft-
ware packages regularly and add or change features. The software
releases are continuously checked by the development department, but no
responsibility for this software releases can be taken over except of war-
ranty granted by the module producer.
