Turn Off With At Command; Reset_N - Quectel RG520N-AT Hardware Design

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V B AT

P W R K E Y

S TA TU S

M odul e

S t at us

3.6.2. Turn Off with AT Command

It is safe to turn off the module with AT+QPOWD, which is similar to turning off the module via PWRKEY.

See document [3] for details about AT+QPOWD.

NOTE

1. To avoid corrupting the data in the internal flash, do not switch off the power supply to turn off the

module when it works normally. Only after the module is turned off with PWRKEY or AT command,

the power supply can be cut off.

2. When turning off module with AT command, please keep PWRKEY at a high level after the

execution of turn-off command. Otherwise, the module will be turned on again after being turned off.

The module can be reset by driving RESET_N low for at least 500 ms and then releasing it. The

RESET_N signal is sensitive to interference, so it is recommended to route the trace as short as possible

and surround it with ground.

RG520N-AT_Hardware_Design

800 m s

R unni ng

Figure 14: Turn-off Timing

TB D

P ow er-dow n procedure

5G Module Series

O FF

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