LTE Standard Module Series
EC25 Hardware Design
EC25_Hardware_Design 47 / 130
Figure 15: Reference Circuit of RESET_N by Using Button
The reset scenario is illustrated in the following figure.
Figure 16: Timing of Resetting Module
1. Use RESET_N only when failed to turn off the module by AT+QPOWD command and PWRKEY pin.
2. Ensure that there is no large capacitance on PWRKEY and RESET_N pins.
3.9. (U)SIM Interface
The (U)SIM interface circuitry meets ETSI and IMT-2000 requirements. Both 1.8V and 3.0V (U)SIM cards
are supported.
NOTES
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