AT commands Network commands
Digi XBee3 Cellular LTE-M/NB-IoT Global Smart Modem User Guide
167
Default
N/A
TM (IP Client Connection Timeout)
The IP client connection timeout. If there is no activity for this timeout then the connection is closed. If
TMis 0, the connection is closed immediately after the device sends data.
If you change the TM value while in Transparent Mode, the current connection is immediately closed.
Upon the next transmission, the TM value applies to the newly created socket.
If you change the TM value while in API Mode, the value only applies to subsequently opened sockets.
Note For NB-IoT, TCP support is dependent on the network. Contact your network provider for
details.
Parameter range
0 - 0xFFFF [x 100 ms]
Default
0xBB8 (5 minutes)
TS (IP Server Connection Timeout)
The IP server connection timeout. If no activity for this timeout then the connection is closed. When
set to 0 the connection is closed immediately after data is sent.]
Note For NB-IoT, TCP support is dependent on the network. Contact your network provider for
details.
Parameter Range
10 - 0xFFFF; (x 100 ms)
Default
0xBB8 (5 minutes)
DO (Device Options)
Enables and disables special features on the XBee Smart Modem.
Note For NB-IoT, TCP support is dependent on the network. Contact your network provider for
details.
Bit 0 - Remote Manager support
If the XBee Smart Modem cannot establish a connection with Remote Manager, it waits 30 seconds
before trying again. On each successive connection failure, the wait time doubles (60 seconds, 120,
240, and so on) up to a maximum of 1 hour. This time resets to 30 seconds once the connection to
Remote Manager succeeds or if the device is reset.
Bit 2 - USB direct enable
Set bit 2 to enable USB direct mode. After setting, use WR (Write) to write all values to flash and use
FR (Force Reset) to reset the device.
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