SARA-G3 series - System Integration Manual
UBX-13000995 - R06 Objective Specification System description
Page 53 of 218
received without loss. The module cannot enter idle-mode and the UART is keep enabled as long as
the RTS input line is held in the ON state
If the RTS input line is set to the OFF state by the DTE, the UART is disabled (held in low power
mode) and the module automatically enters idle-mode whenever possible
For more details, refer to section 1.9.1.4 and
u-blox AT Commands Manual
[2], AT+UPSV command.
DSR signal behavior
If AT&S0 is set, the DSR module output line is set by default to the ON state (low level) at UART
initialization and is then always held in the ON state.
If AT&S1 is set, the DSR module output line is set by default to the OFF state (high level) at UART
initialization. The DSR line is then set to the OFF state when the module is in command mode or in
online command mode and is set to the ON state when the module is in data mode (refer to the
u-blox
AT Commands Manual
[2] for the definition of the interface data mode, command mode and online
command mode).