Specifications
L506 Hardware Design 
Copyright©  Shanghai  Mobiletek  Communication  Ltd                                                              42 
Note: it is recommended that only in an emergency, such as module without response, use the 
RESET pin. In addition, under the module power off status the RESET pin is invalid. 
3.9.5 Power on/off and reset interface application 
Figure 3-18: Reference power on/off reset circuit 
Another way to control the PWRKEY pin is directly using a push button switch. Need to set a button near the 
TVS to ESD protection. The image below for reference circuit: 
Figure 3-19: power on/off and reset recommended circuit (physical buttons) 










