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5.12.1
CPU Fan Header
The conga-JC370 provides pin header X9 for connecting a 3-pin or 4-pin 12 V CPU fan. The recommended maximum power rating for the fan
is 4 W.
Table 35 X9 Pinout Description
Pin
Signal
1
GND
2
+12 VDC
3
FAN_TACHOIN
4
FAN_CTRL
Note
1. The connector and pinout complies with 4-Wire Pulse PWM Controlled Fans Specification, Revision 1.3
2. FAN_TACHOIN fan output shall provide two pulses per revolution.
3. The fan must pull up the FAN_CTRL signal to high logic level
Connector Type
X9: 2.54 mm, 4-pin grid female fan connector
X9
1 2 3 4