5G Module Series
RM505Q-AE Hardware Design
RM505Q-AE_Hardware_Design 27 / 79
VCC
FULL_CARD_POWER_OFF#
RUNNING
OFF
Module Status
Power-off procedure
RESET_N(H)
≥10 s
Figure 8: Turn-off Timing through FULL_CARD_POWER_OFF#
3.5.2.2. Turn off the Module through AT Command
It is also a safe way to use
AT+QPOWD
command to turn off the module. For more details about the
command, see
document [2]
.
The module is designed to be turned on with a host GPIO. Pull down FULL_CARD_POWER_OFF# pin
after the module
’s USB/PCIe is removed, otherwise, the module will be powered on again.
VCC
FULL_CARD_POWER_OFF#
RUNNING
OFF
Module Status
Turn off procedure
RESET_N(H)
USB/PCIe
AT+QPOWD
USB/PCIe
removed
Figure 9: Turn-off Timing through AT Command and FULL_CARD_POWER_OFF#
3.6. Reset the Module
RESET_N pin is of an asynchronous and active low signal (1.5 V logic level). Whenever this pin is active,