Moons 17HD Stepper Wiring Problem

I have a moons 17HD3802-02 stepper motor I am planning to use for my extruder. It is an eight-wire unit.

See the following for specs.

I am going to wire it as bipolar series, so I wired brown to white and orange to yellow. How do I match the 1A-1B-2A-2B of my RAMPS 1.4 board to the remaining BLUE RED GREEN and BLACK wires?

Derek