Pin Number |
Pin Name |
Description |
---|---|---|
1 | No connect | |
2 | Fan Speed Control |
Two wires connect to this pin, one for each fan. 0-5 volts analog fan speed control. 0 volts=off, 5 volts = 100%, 2.5 volts = 50%, ... Can also be controlled using a 5 volt PWM signal. |
3 | No connect | |
4 | GND | Shared ground. Two wires connect to this pin, one for each fan. |
5 | SIGNAL1 | Fan 1 RPM signal |
6 | SIGNAL2 | Fan 2 RPM signal |
7 | +12v (1) | Fan 1 +12 volts |
8 | +12v (2) | Fan 2 +12 volts |