Boot The Xbee Cellular Modem In Bypass Operating Mode; Restore Cellular Settings To Default In Bypass Operating Mode; Command Mode; Enter Command Mode - Digi XBee Cellular LTE Cat 1 User Manual

Modes
1. Set the AP (API Mode) parameter value to something other than 5.
2. Use AC (Apply Changes) or CN (Exit Command Mode) to apply the changes.
3. To verify that Bypass operating mode is not active, query AI (Association Indication) and
confirm that it returns something other than 0x2F.

Boot the XBee Cellular Modem in Bypass operating mode

If the host sends WR (Write) when AP (API Mode) is set to 5, it enables Bypass operating mode when
the XBee Cellular Modem turns on. In this configuration, the firmware does not test communication
with the cellular component (which it does by sending AT commands). This is useful in case you have
reconfigured the cellular component in a way that makes it incompatible with the firmware.
The option to boot with Bypass operating mode enabled exists for users who wish to communicate
directly with the cellular component settings and do not intend to use XBee Cellular Modem software
features such as API mode.
Note When the XBee Cellular Modem has been booted with Bypass operating mode enabled, disabling
Bypass operating mode causes the XBee Cellular Modem firmware to reboot the cellular modem.

Restore cellular settings to default in Bypass operating mode

Send AT&F1 to reset the cellular component to its factory profile.

Command mode

The three operating modes are controlled by the
always available as a mode the device can enter while configured for any of the operating modes.

Enter Command mode

To get a device to switch into this mode, you must issue the following sequence: +++ within one
second. There must be at least one second preceding and following the +++ sequence. Both the
command character (CC) and the silence before and after the sequence (GT) are configurable. When
the device sees a full second of silence in the data stream (the guard time, GT) followed by the string
+++ (without Enter or Return) and another full second of silence, it knows to stop sending data and
start accepting commands locally.
Note Do not press Return or Enter after typing +++ because it will interrupt the guard time silence
and prevent you from entering Command mode.
When the device is in Command mode, it listens for user input and is able to receive AT commands on
the UART. If CT time (default is 10 seconds) passes without any user input, the device drops out of
Command mode and returns to the previous operating mode (Transparent, Bypass, API, Python, and
so forth).
You can customize the command character, the guard times and the timeout in the device's
configuration settings. For more information, see
Mode Timeout) and
Troubleshooting
Failure to enter Command mode is often due to baud rate mismatch. Ensure that the baud rate of the
connection matches the baud rate of the device. By default, the BD parameter = 3 (9600 b/s).
Digi XBee Cellular LTE Cat 1 Embedded Modem User Guide
GT (Guard Times).
AP (API Enable) setting, but Command mode is
CC (Command Sequence

Command mode

Character), CT (Command
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