Cpu/System Fan Connectors (J25, J24) - Kontron KTA75/Flex User Manual

KTD-N0876-0

7.10 CPU/System Fan Connectors (J25, J24)

The CPU Fan connector and the System Fan connector are identical 4 pin
type connectors. The type is Tyco 1470947-1 or similar.
Header
Signal Description
PWM is output signal used to control the fan speed (only for
PWM
4-wire Fans).
Tarcho input signal is used to monitor the rotation speed RPM
Tacho
(Rotation Per Minute). Prepared for to pulses per turn.
The CPU Fan (PN 1044-9447) can be premounted on the KTA75/Flex.
The fan is a 12V, Ball Bearing type.
PWM 0 – 100% control making speed in range 0 – 8000 RPM ±10%
(Max. startup PWM is 35%)
Power consumption up to 3,6W
MTBF 70000 Hours @ 40ºC
Page 40
Pin Signal
1 PWM
Tacho signal
2 TACHO
(open drain)
3 12V
4 GND
KTA75/Flex Users Guide
KTA75/Flex Users Guide
Connector Signal Definition
Description
PWM output O-3.3
Power +12V
Ground
Type
I
PWR
PWR