Usb Direct Mode; Connect The Hardware For Usb Direct Mode - Digi XBee 3 Cellular LTE-M User Manual

Modes

USB direct mode

Note In order to use USB direct mode in Digi XBee development kits, you must use the XBIB-C-TH
development board.
Note You should use this mode if you want to connect using PPP through the cellular modem while
using a host operating system, such as embedded Linux.
This mode allows you to access the XBee Smart Modem's USB interface directly through XBee pins 7
and 8. VBUS functionality is optionally provided on XBee pin 6 if you wish to enable and disable USB
mode based on an external source. While in USB mode the cellular modem is not able to communicate
serially with the XBee MCU. All communication with the cellular modem must be performed by the
user via the USB port.
Connect the hardware for USB Direct mode
Before you begin, you must connect the hardware. Refer to the image below.
1. Connect the USB-C cable from a PC to the USB port on the development board. The computer
searches for a driver, which can take a few minutes to install.
2. Connect the micro USB cable from a PC to the micro USB port on the development board.
Note The USB port on the PC should be a minimum of USB 3.0 to supply adequate power, and for the
device to work as expected.
Digi XBee® 3 Cellular LTE-M/NB-IoT Global Smart Modem User Guide
USB direct mode
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