Criterion/GeoLaser pinout information When the battery pack connector is viewed from the outside, Pin 1 is at the top (even with the "red mark") and Pins 2-5 are located in a counter- clockwise progression. The mating cable plug is: LEMO FGG.1B.305.CNAD72Z The plug's cable strain relief is: LEMO GMA.1B.065DV When viewing this connector from the outside, Pin 1 is at the "red mark" and Pins 2-5 are located in a clockwise progression. Pins 1 and 2 supply power to the Laser and should not be connected in the download cable. Pin 3 is Serial In or Rx Pin 4 is Serial Out or Tx Pin 5 is Serial Ground