Advantech ROM-DB7502 User Manual page 48

2.4.2.20 Sleep Button Pin Header (CN20)
Pin
1
2
2.4.2.21 Power Button Pin Header (CN18)
Pin Pin Name
1 POWER_BTN#
2 GND
2.4.2.22 Smart Fan Connector (SMART_FAN1)
The ROM-DB7502 Evaluation board provides a FAN connector, SMART_FAN1. The
12V or 5V supply which is available at this connector is connected to the 12V or 5V
regulated power supply using a Jumper which is controlled by CN6.
Pin Pin Name
1 GND
2 FAN_PWR
3 FAN_TACHOIN_S
4 FAN_PWM_CTL
ROM-DB7502 User Manual
Pin Name
SLEEP#
GND
40
DESCRIPTION
Sleep Button Signal
GND
DESCRIPTION
Power Button Signal
GND
DESCRIPTION
GND
12V or 5V Power
fan tachometer input
fan speed control