sparkfun DEV-17272 Hook-Up Manual page 18

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Board Dimensions
The Asset Tracker Carrier Board measures 3.0 inches by 3.0 inches (76.2mm x 76.2mm) and has four mounting
holes that fit a 4-40 screw.
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Choosing a Processor Board
As you can see from the Jumpers section above, there are some things to consider when choosing a MicroMod
Processor Board to go with your Asset Tracker.
G7/BUS7 SARA DSR_O/RTS2_I
G6/BUS6
RTC_3V
G5/BUS5
3.3V
SARA_ON
RTC_3V
SARA_INT
3.3V 3.3V output from voltage
SARA UART Data Set
Ready / AUX UART
Request to Send
General purpose pin
conifgured to monitor
power for SARA
3V output for backup
battery charging.
General purpose pin
configured for SARA
Interrupt I/O pin
regulator