The ``LD`` on the end of the sensor part number means the sensor has a 0.8 meter (2.6 ft) pigtail on the end of the sensor which then terminates to a 4-pin M12 DC Micro connector. This is wired to the IEC normal:
BRN = pin 1 = V+
BLU = pin 3 = V common and BLK = pin 4 = output
CTA-ID : 2033128
BRN = pin 1 = V+
BLU = pin 3 = V common and BLK = pin 4 = output
CTA-ID : 2033128