Digi XBee 3 Cellular LTE-M User Manual page 110

Hardware
Number Item
1 Secondary USB
(USB MICRO B)
and DIP Switch
2 Current Measure Large switch controls whether current measure mode is active or
Digi XBee® 3 Cellular LTE-M/NB-IoT Global Smart Modem User Guide
Description
Secondary USB Connector for direct programming of modules on
some XBee units. Flip the Dip switches to the right for I2C access to
the board; flip Dip switches to the left to disable I2C access to the
board. The USB_P and USB_N lines are always connected to the
XBee, regardless of Dip switch setting. USB communications will fail
if switches are not in the left position or if XBEE is not configured to
enable USB communications. See
This USB port is not designed to power the module or the board. A
USB-C cable or battery port is required to power the board. Cable
can be connected at any time, with the XBe powered or unpowered.
WARNING! USB micro port should not be connected
when used with XBees that do not support USB
communications.
inactive. When inactive, current can freely flow to the VCC pin of the
XBee. When active, the VCC pin of the XBee is disconnected from the
3.3 V line on the development board. This allows current
measurement to be conducted by attaching a current meter across
the jumper P10.
Development boards
ATP1 command.
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