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Figure 3: Board power distribution diagram.

Power Rails

The voltage direction of the power rails is directed at on-board connectors' view:

Module Connector (B2B) DesignatorVCC / VCCIODirectionPinsNotes
JB1

VIN33

Out

1, 2, 3, 4, 5, 6

3.3V module supply voltage
VCCIO_13Out101, 102PL IO-bank VCCIO
VCCIO_33Out29, 30PL IO-bank VCCIO
3.3VIn65, 66voltage output from module
JB2

1.8V

In

49

voltage output from module
2.5VIn13voltage output from module
USB-VBUSOut107USB Host supply voltage
VBAT_INOut118RTC buffer voltage

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Main Power Jack and Pins DesignatorVCC / VCCIODirectionPinsNotes
J125VINIn

-1

-
J95VINIn / OutA1, A2also usable as '5VIN' power supply to the Carrier Board as alternative to J12
J2VBAT_INIn1Attention: Pin 2 connected to ground. VBAT_IN voltage on this pin cause short-circuit.

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Peripheral Socket DesignatorVCC / VCCIODirectionPinsNotes
J10 / J11USB-VBUSIn / Out1Direction depends on USB2.0 Type A socket / Micro USB2.0 B socketmode
J1VIN33Out4MikroSD Card socket VDD

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