One Datatech OEDW 8.1 unit coupled with pump drycooler control the temperature in each Control module. In total eighteen modules where delivered for controlling driverless train in Freeport-McMoRan Copper & Gold Inc.'s gold and copper mine in Papua, Indonesia. Grasberg mine, which is located at 4100 meters above sea level is regarded as the world's largest gold deposit and has for decades been broken by open pit. From 2016, the breach begin to occur below ground.