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5.6.8. Connector X2501 ( Smart Battery System )
BAT+
Connect to positive terminal of battery.
GND
Connect to negative terminal of battery.
BATT_SDA
Smart battery data bus signal. Open collector bidirectional (TTL).
BATT_SCL
Smart battery clock signal. Open collector bidirectional (TTL).
THM
Thermal monitor input signal. Analog input, max. input voltage is 4V DC.
5.6.9. Connector X2500 ( DC Power Input )
+DCIN
Main power supply input (+8V up to +28V DC).
GND
Main power supply ground.
5.6.10. Connector X1402 ( Backlight )
BKLT_ADJ
0V up to +5V DC brightness control signal.
BKLT_SW
Switched Backlight power supply. 5V or 12V selectable by J1400. default value 12V
BKLT_ON
Backlight on/off control signal (TTL). Polarity selectable by J1402, default value active high
5.6.11. Connector X1404 ( Backlight Compensation )
VTIN
Optional (Sense input for variable Resistor. Max. input voltage is 2.5 VDC)
5.6.12. Connector X1200 ( FAN )
UFAN
+5V Fan Power output, max. 250 mA
FANIN
Sense input to detect fan speed, max. input voltage 5V DC.
Page 23 of 62 Pages
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