Normally Closed (U)Sim Card Connector - Quectel RM502Q-GL Hardware Design

Characteristics
Parameter
<enable>
<insert_level>
NOTES
1. Hot-plug function is invalid if the configured value of <insert_level> is inconsistent with hardware
design.
2. Hot-plug function setting takes effect after the module is restarted.
3. The underlined value is the default parameter value.
4. USIM_DET[1:2] is pulled LOW by default, and will be internally pulled up to 1.8 V by software
configuration only when (U)SIM hot-plug is enabled by AT+QSIMDET.

4.1.3. Normally Closed (U)SIM Card Connector

With a normally closed (U)SIM card connector, USIM_DET pin is shorted to ground when there is no
(U)SIM card inserted. (U)SIM card detection by high level is applicable to this type of connector. After
executing AT+QSIMDET=1,1 to enable the (U)SIM hot-plug: when a (U)SIM card is inserted, USIM_DET
will change from low to high level; when the (U)SIM card is removed, USIM_DET will change from high to
low level.
⚫
When the (U)SIM is absent, CD is shorted to ground and USIM_DET is at low level.
⚫
When the (U)SIM is present, CD is open from ground and USIM_DET is at high level.
RM502Q-GL_Hardware_Design
Integer type. Enable or disable (U)SIM card detection.
0 Disable
1 Enable
Integer type. The level of (U)SIM detection pin when a (U)SIM card is inserted.
0 Low level
1 High level
The command takes effect after the module is restarted.
The configuration will be saved automatically.
5G Module Series
RM502Q-GL Hardware Design
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