Quectel SC600Y-EM Series Hardware Design page 47

>1.6s
Turn on pulse
Another way to control the PWRKEY is using a button directly. A TVS component is indispensable to be
placed nearby the button for ESD protection. A reference circuit is shown in the following figure.
SC600Y&SC600T_Hardware_Design
R1
4.7K
Figure 6: Turn on the Module Using Driving Circuit
S1
TVS
Figure 7: Turn on the Module Using Keystroke
SC600Y&SC600T Hardware Design
PWRKEY
Q1
R2
47K
PWRKEY
1K
Close to S1
Smart LTE Module Series
R3
1K
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