Operation in AT mode
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ZDUE-LTE-PLUS-VII
5
Operation in AT mode
When AT mode is activated, it is possible to address the radio module of the
ZDUE-LTE-PLUS-VII directly via the serial interface by AT command. This
allows the ZDUE-LTE-PLUS-VII used, for example, as a GSM terminal for
establishing data connections via the mobile radio network.
To switch on the AT mode, disconnect the ZDUE-LTE-PLUS-VII from the
power supply. Then set the DIP switch (see chapter 2.1) to "ON" so that the
ZDUE-LTE-PLUS-VII operates in AT mode.
If the ZDUE-LTE-PLUS-VII is in the factory state, the serial interface is set
as follows after switching to AT mode:
19200 bit/s, 8N1
To change the bit rate (e.g. from 19200 bit/s to 9600 bit/s), switch back to
meter mode and change the
Start baud rate
parameter to the desired
value. Then activate the AT mode again.
To set the bit rate back to the default value without parameterisation
software, you can switch back to meter mode and perform a factory reset
with the service button (see 2.2). Then activate the AT mode again.
Attention
Please note that the service button will reset all settings of your ZDUE to the
factory settings. If only the bit rate of the serial interface is to be changed, set
the start baud rate in meter mode to 19200 bit/s as described above.
The character format cannot be changed, in AT mode 8N1 is always used.
Remote configuration is not possible.
To activate automatic call acceptance, enter the AT command ATS0=1.
Attention
Please note that the hardware handshake (RTS/CTS) must be deactivated in
the terminal software used for configuration (e.g. PuTTY).
Attention
Never use AT commands that are used to switch the baud rate or data
format on radio modules.
Содержание Dr. Neuhaus ZDUE-LTE-PLUS-VII
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