Quectel 5G Module Series Hardware Design

5G Module Series
RM500Q-AE&RM502Q-AE Hardware Design
RM500Q-AE&RM502Q-AE_Hardware_Design 33 / 86
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 [3].
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 turned on again.
VCC(H)
RESET#(H)
USB/PCIe
Module Status
FCPO#
RFFE_VIO_1V8
Turn-off procedureRunning OFF
AT+QPOWD USB/PCIe removed
1.5 V
3.7 V
V
IH
≥ 1.19 V
1.8 V or 3.0 V
1.8 V
USIM1_VDD
T
turn-off
Figure 11: Turn-off Timing through AT Command and FCPO#
Table 11: Turn-off Timing of the Module through AT Command and FCPO#
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 after the module is turned off.
Symbol
Min.
Typ.
Max.
Comment
T
turn-off
6.84 s
-
-
Module system turn-off time.
NOTES

Quectel 5G Module Series Specifications

General

Brand	Quectel
Model	5G Module Series
Category	Motherboard
Language	English