
The bottom two stations are named "Load Iron Ore". They are enabled by the circuit network when the buffer chests contain >= 2000 Iron Ore. This is not currently true.
The top and middle stations are named "Rail Network". They are enabled and not connected to any circuit network.
There are no stations named Drop Iron Ore.
The train's schedule is:
Load Iron Ore
Until Cargo Full
Rail Network
(No condition)
Drop Iron Ore
Until Cargo Empty
Rail Network
(No condition)