These controllers have 4 groups neccessary cables(power cables, E-lock cables, Reversing-cables & Motor-phase cables), when hook up these 4 groups cables, the E-bike can run normally.
Besides, these controllers have other optional functions, users can hook them up according to your applications.
Connection Table:
1.)Power Cables: big red + big black
2.)Phase Cables: big yellow + big green + big blue
3.)Electric Door Lock Cable: middle red
4.)Hall Cables: small red, small black, small yellow, small green, small blue
5.)Reverser Cables: small red + small blue + small black
6.)Shifter Cables: blue(high speed)+ black + +yellow(low speed)
7.)Brake-Hi Cable: yellow
8.)Brake-Low Cable: Brown
9.)Anti-theft Cables:Red(Positive) + Black(power) Red(E-Start) + Blue(Motor Lock Signal) + Green(Motor Lock)
10.)Self-Study cable: two white cables with black plugs
11.)E-ABS(Optical): two blue cables matched
12.)Cruise(Optical): two Gray cables connecting together.

See larger image Additional Images: Sunwin Electric Bicycle Brushless Motor Controller 48V/72V 1500W For E-bike & Scooter New From: Out of Stock