Where is JP to solder in Elecrow SIMduino UNO+SIM808 GPRS/GSM Board

I am new to Arduino and need help on Elecrow SIMduino UNO+SIM808 GPRS/GSM Board. I am trying to power on the module using below code. But looks like i need to solder JP. i am not sure which is JP in the SIMduino UNO+SIM808 GPRS/GSM Board. I have attached the image of my board. can somebody plz let me know where is JP

int Powerkey = 9;
void setup() {
pinMode(Powerkey, OUTPUT); // initialize the digital pin as an output.
power(); //power on the sim808 or power down the sim808
void loop()


void power(void)
digitalWrite(Powerkey, LOW);
delay(1000); // wait for 1 second
digitalWrite(Powerkey, HIGH);

Hi you can connect the power 9 pin at RST pin of 808 .instated of manualy power the sim808 we can power sim808 by software through pin9 as in your program :) I hope it will work.