STEPPIII Hardware description
Version 1.0.0
1.2 Circuit concept
The STEPPIII architecture includes the following major functional components
(
see figure 2
):
Architecture integrates:
High-performance Quad-Band GSM/GPRS core
High sensitivity 20 parallel channel SiRFStarIII
ARM7TDMI processor that controls all functions of the system
Rechargeable 1100 mA Li-Polymer battery
CAN bus (optional)
3D motion detection
Interface circuitry
Physical interfaces:
Molex connector (Type: Molex 43045-1609, and counterpart:
Casing: 43025-1600 and Box type spring contact: 43031-0001) for
power supply and I/O’s (16-pin connector)
AMP connector (Type: AMP5-558556-1, and counterpart: 558666-
1) for serial interfaces (15-pin connector)
SIM Card reader (Type: Molex-91228-0002 small SIM Card)
GSM antenna interface (Type: Connector 50
Ω
Fakra/Radiall SMB-
male)
GPS antenna interface (Type: Connector 50
Ω
Fakra/Radiall SMB-
male)
LED
Figure 2:
Architecture of the STEPPIII terminal
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