Digi XBee 3 Cellular LTE-M, User Manual, Page: 204 / 331

AT commands Serial interfacing commands
Digi XBee® 3 Cellular LTE-M/NB-IoT Global Smart Modem User Guide 204
Parameter range
0 - 0xFF
Default
0x0
FT (Flow Control Threshold)
Set or display the flow control threshold.
The device de-asserts CTS when FT bytes are in the UART receive buffer.
Parameter range
0x9D - 0x82D
Default
0x681
AP (API Enable)
Enables the frame-based application programming interface (API) mode.
The API mode setting. The device can format the RF packets it receives into API frames and send
them out the UART. When API is enabled the UART data must be formatted as API frames because
Transparent mode is disabled. See
Modes for more information.
Parameter range
0x00 - 0x05
Parameter Description
0x00 API disabled (operate in Transparent mode)
0x01 API enabled
0x02 API enabled (with escaped control characters)
0x03 N/A
0x04 MicroPython REPL
0x05 Bypass mode
Default
0
IB (Cellular Component Baud Rate)
Note Digi does not recommend using bypass mode. You should use USB Direct mode instead.
Sets the serial interface baud rate for communication between the XBee CPU and the cellular
component when in bypass mode. You can set bypass mode by setting the
AP command to 5 . You must
configure the cellular modem to use the same baud rate (AT+IPR) prior to changing this setting.