In
this project, the TC35i terminal GSM modem is used as it was provided from the
university. It operate under 12V and it voltage operate equal as the voltage
provided as battery Motorcycle. Basically, the TC35i Terminal modem operate
from the TC35 GSM Engine. It is a major functional component of the TC35
Terminal that handles all the processing for audio, signal and data within a
GSM cellular device. Internal software runs the application interface and the
whole GSM protocol stack. AUSART forms the interface to the Terminal Circuit.
Figure 36 show the front view picture of TC35iT. From the picture, we can see the RS232
connector that will be connected to PIC interface circuit.
Figure: TC35i Terminal
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