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WA_DEV_FEX20_UGD_002
Rev 002
April 26, 2010
36
Fastrack Xtend User Guide
Interfaces
Figure 7. Power Supply Connector
Refer to the following table for the pin description of the power supply connector.
Table 8:
Power Supply Connector Pin Description
Pin #
Signal
Description
1
GPIO25
General purpose input/output
2
GPIO21
General purpose input/output
3
Vref
Voltage reference for the GPIOs
4
Reserved
Reserved for battery accessory
5
Reserved
Reserved for battery accessory
6
GND
Ground
7
DC-IN
Input Supply for the Fastrack Xtend (4.75V to 32V)
8
ON/OFF
Control pin to power OFF the Fastrack Xtend
9
Reserved
Reserved for battery accessory
10
Reserved
Reserved for battery accessory
The input voltage range (DC-IN) is from 4.75V to 32V, with a typical operating voltage of 13.2V.
The power cable is provided as part of the Fastrack Xtend package.
Caution:
Pins 1, 2, 3, 4, 5, 8, 9 and 10 are low voltage interfaces. It is strictly prohibited to connect these pins to
any power supply as there is a risk of damaging the Fastrack Xtend.
5.1.1.1.
General Purpose Input/Output
The Fastrack Xtend has two external GPIO ports, GPIO21 and GPIO25; as well as a voltage
reference line, Vref.
Vref sets the reference voltage of the input or output of the two GPIOs. Leaving it unconnected sets
the GPIO level at 2.3V – 2.6V by default. It is recommended to connect to the required GPIOs’ output
voltage (2.8V ~ 15V).
Refer to the following table for the pin description of the GPIOs.
Содержание AirLink FXT Series
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