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2
Pin and buttons
Switch
ON
PWR
OFF
Pin
Name
4
VDC
3
GND
2
CT
1
CT
Extension bus
Ext_Bus
Button
Wake
F3
Instructions
Power on
Power off
Instructions
+10 ~ +30 VDC
Ground
Split-core CT pin，no
directionality，support
measuring and charging
function
Instructions
Empty or connect
extension module
Instructions
Manual wake up
Reserved
P3
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