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2. Block Diagram 
Figure 2 illustrates the basic structure of the OVPC2G hardware: 
 
Processor Core
Flash
Memory
RTC
Power Supply and
Charger
Dual
UART
IrDA
Transceiver
Expansion
Port
MDT Pins
Lithium-Ion
Battery
Maintenance
Port
RS-232
Transceiver
GPRS Radio
ADC
Low Batt
On/Off
Reset
7.37MHz
Reset
Detect
Chg Det.
32.768kHz
Tilt Switch
Front
Panel
LEDs
Wake
 
Figure 2 - OVPC2G Block Diagram 
3. Housing 
The OVPC2G housing is a tough and durable enclosure that serves to protect the internal electronics of the device 
from exposure to weather, dust and other environmental use factors.  Located on the outside of the housing are four 
LED indicators (Figure 5) a power on/off switch (Figure 4), an RS232 port (accessible only via a proprietary 
Mobiltex cable), an IrDA port, and two sturdy metal contacts (Figure 3) for connection to the charger or to an 
external hand-held mobile data terminal. 
 
 
Figure 3 – OVPC2G Top View 
 
 
MOBILTEX DATA LTD. 
TITLE: 
Mobiltex OVPC2G Hardware User’s Manual 
Calgary, Alberta 
DOCUMENT NO.: 
OVPC2G-MAN-001 
SHEET: 
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