Rx/Tx on Arduino Industrial 101

Hello forum!

Recently I bought an arduino industrial 101:
http://www.arduino.org/products/boards/ ... strial-101

And a laser dust sensor from Dfrobot:
https://www.dfrobot.com/wiki/index.php/ ... KU:SEN0177

This sensor need Rx and Tx for communication, but, in an arduino industrial that pin are not visible. Now, the question is, where is Rx and Tx in an arduino industrial 101.

I tried with the next code, provide of tech support of DfRobot, but not function in arduino industrial 101

#include <Arduino.h>
#include <SoftwareSerial.h>
#define LENG 31 //0x42 + 31 bytes equal to 32 bytes
unsigned char buf[LENG];
SoftwareSerial mySerial(5,6); // RX, TX

int PM01Value=0; //define PM1.0 value of the air detector module
int PM2_5Value=0; //define PM2.5 value of the air detector module
int PM10Value=0; //define PM10 value of the air detector module


void setup()
{
mySerial.begin(9600); //use serial0
mySerial.setTimeout(1500); //set the Timeout to 1500ms, longer than the data transmission periodic time of the sensor
Serial.begin(115200);
}

void loop()
{
if(mySerial.find(0x42)){ //start to read when detect 0x42
mySerial.readBytes(buf,LENG);

if(buf[0] == 0x4d){
if(checkValue(buf,LENG)){
PM01Value=transmitPM01(buf); //count PM1.0 value of the air detector module
PM2_5Value=transmitPM2_5(buf);//count PM2.5 value of the air detector module
PM10Value=transmitPM10(buf); //count PM10 value of the air detector module
}
}
}

static unsigned long OledTimer=millis();
if (millis() - OledTimer >=1000)
{
OledTimer=millis();

Serial.print("PM1.0: ");
Serial.print(PM01Value);
Serial.println(" ug/m3");

Serial.print("PM2.5: ");
Serial.print(PM2_5Value);
Serial.println(" ug/m3");

Serial.print("PM1 0: ");
Serial.print(PM10Value);
Serial.println(" ug/m3");
Serial.println();
}

}
char checkValue(unsigned char *thebuf, char leng)
{
char receiveflag=0;
int receiveSum=0;

for(int i=0; i<(leng-2); i++){
receiveSum=receiveSum+thebuf;
}
receiveSum=receiveSum + 0x42;

if(receiveSum == ((thebuf[leng-2]<<8)+thebuf[leng-1])) //check the serial data
{
receiveSum = 0;
receiveflag = 1;
}
return receiveflag;
}

int transmitPM01(unsigned char *thebuf)
{
int PM01Val;
PM01Val=((thebuf[3]<<8) + thebuf[4]); //count PM1.0 value of the air detector module
return PM01Val;
}

//transmit PM Value to PC
int transmitPM2_5(unsigned char *thebuf)
{
int PM2_5Val;
PM2_5Val=((thebuf[5]<<8) + thebuf[6]);//count PM2.5 value of the air detector module
return PM2_5Val;
}

//transmit PM Value to PC
int transmitPM10(unsigned char *thebuf)
{
int PM10Val;
PM10Val=((thebuf[7]<<8) + thebuf[8]); //count PM10 value of the air detector module
return PM10Val;
}

Anyone can help me, please?

Regards!