Quectel RM520N-GL - U)SIM Hot-Plug

5G Module Series
RM520N-GL_Hardware_Design 40 / 84
4.1.2. (U)SIM Hot-Plug
The module supports (U)SIM card hot-plug via the USIM_DET pin. (U)SIM card is detected by
USIM_DET interrupt. USIM1_DET hot-plug is enabled by default, while USIM2_DET hot-plug is disabled
by default.
The following command can enable or disable (U)SIM card hot-plug function. The level of (U)SIM card
detection pin should also be set when the (U)SIM card is inserted.
48
USIM2_VDD
PO
Power supply for (U)SIM2 card
USIM2_VDD
1.8/3.0V
42
USIM2_DATA
DIO, PU
(U)SIM2 card data
USIM2_VDD
1.8/3.0 V
44
USIM2_CLK
DO, PD
(U)SIM2 card clock
USIM2_VDD
1.8/3.0 V
46
USIM2_RST
DO, PD
(U)SIM card reset
USIM2_VDD
1.8/3.0 V
40
USIM2_DET
DI, PD
(U)SIM2 card hot-plug detect
1.8 V
AT+QSIMDET (U)SIM Card Detection
Test Command
AT+QSIMDET=?
Response
+QSIMDET: (list of supported <enable>s),(list of
supported <insert_level>s)
OK
Read Command
AT+QSIMDET?
Response
+QSIMDET: <enable>,<insert_level>
OK
Write Command
AT+QSIMDET=<enable>,<insert_level>
Response
OK
If there is any error:
ERROR
Maximum Response Time
300 ms
Characteristics
The command takes effect after the module is restarted.
The configuration will be saved automatically.