MITX-CFL0 Series - User Guide, Rev. 1.1
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7.1.3.
RTC Power Input Wafer (BAT)
The 1x2-pin 1.25 mm pitch RTC power input wafer is intended to be connected to the battery. The battery provides
power to the system clock to retain the time when power is turn off.
Figure 16: RTC Power Input Wafer BAT
Table 21: Pin Assignment BAT
Pin
Signal
Description
Note
1
RTC Power
Real-time clock backup battery input
2
GND
Ground reference
7.2.
Fan Wafers (CPU_FAN & SYS_FAN)
The CPU FAN Wafer (CPU_FAN) is used for the connection of the FAN for the CPU while the System FAN Wafer
(SYS_FAN) for the connection of the FAN for the system.
Figure 17: Fan Wafer CPU_FAN, SYS_FAN
Table 22: Pin Assignment CPU_FAN, SYS_FAN
Pin
Signal
Description
Note
1
GND
Power supply ground signal
2
Voltage Speed
Control
+12 V power supply for fan
3
SENSE
Sense input signal from the fan, for rotation speed supervision
RPM (Rotations Per Minute).
4
PWM Speed
Control
PWM output signal for FAN speed control
