Rev. 6.2
Micronet SmarTab 8 – Hardware Guide
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The IGN line powers on the device from a shutdown state. For proper power management, the
ignition line should be connected to the vehicle’s ignition switch.
Analog Inputs
GPIO can be treated as an analog input to monitor the value range of compatible vehicle sensors, such as
an analog fuel gauge. The supported voltage range is from 0V to 30V.
Open Collector Output lines
The SmarTab 8 tablet provides four O.C output lines through its enhanced cradle for external peripheral
control.
For more information about these interface signals, please see the digital output signals map
Pinout by
Functionality
.
Shown in table 3 are the electrical specifications for the automotive input and output pins:
Table 2: Automotive Signal States, Electrical Parameters
Input State
Typical (V)
Min Voltage (V)
Max Voltage (V)
LOW
0V
-30V
+6V
HIGH
12V-24V
+7V
+30V
Output State
Max Saturation
Voltage (V)
Max Voltage (V)
Max Current (A)
HIGH
0.6V
+VIN
300mA
Customized Front Panel Label
Micronet provides the option to attach a customized front panel label based on your specifications. To
enable rebranding the product, Micronet will provide graphic files and size specifications. This is subject to
an additional charge per unit, based on the quantity ordered.
