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16
Chapter 2 Hardware Installation
Chapter 2
Digital I/O Power Select
2-3 On: +5V (default)
1-2 On: +5V_standby
JP23 is used to select the power of DIO (Digital I/O) signal.
3
1
2
3
1
2
Digital I/O Output State
Based on the power level of DIO (Digital I/O) selected on JP23, JP21 (DIO pin 0-3) and JP22
(DIO pin 4-7) are used to select the state of DIO output: pull high or pull low. When selecting
pull high, the power selection will be the same as JP23’s setting.
2-3 On: GND
(default)
1-2 On: +5V or
+5V_standby
3
1
2
3
1
2
JP23
DIO 0-3
(JP21)
DIO 4-7
(JP22)
