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3.5.2. Turn off the Module through AT Command
It is also a safe method to turn off the module by AT+QPOWD command. For more details about the
command, see document [5].
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(H)
RESET#(H)
FCPO#
RFFE_VIO_1V8
USIM_VDD
USB/PCIe
Module Status
NOTES:
1. Please pull down FULL_CARD_POWER_OFF# pin immediately or cut off the power supply VCC when the host detects that
the module USB/PCIe is removed.
2.
It is recommended to cut off the VCC and drive RESET# LOW after the module is turned off.
Figure 11: Turn-off Timing Sequence through AT Command and FCPO#
Table 11: Turn-off Timing through AT Command and FCPO#
Symbol
Min.
T
6.84 s
turn-off
3.6. Reset
RESET# is an asynchronous and active LOW signal (1.5 V logic level). Whenever this pin is active, the
module will immediately enter Power On Reset (POR) condition.
RM510Q-GL_Hardware_Design
3.7 V
1.5 V
≥ 1.19 V
V
IH
1.8 V
1.8 V or 3.0 V
Running
Typ.
Max.
-
-
AT+QPOWD
Turn-off procedure
T
turn-off
Comment
Module system turn-off time
5G Module Series
RM510Q-GL Hardware Design
USB/PCIe removed
OFF
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