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mITX-BW – User Guide, Rev. 1.6
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7/
Internal Connectors
7.1.
Power Connectors
Either the DC Power Jack Connector “EXT12 V” or the “Int12 V.” connector must be used to supply the board with
+12 (-10%) to +24 VDC (+10%).
Hot plugging any of the power connectors (J40 and J56) is not allowed.
Hot plugging might damage the board. In other words, turn off main supply etc. to make sure
all the power lines (+12 V to +24 V) are turned off when connecting to the motherboard.
7.1.1.
DC Power Connector (J40)
Figure 14: Power Connector J40
Table 19: Pin Assignment J40
Pin
Signal
Description
Type
1
GND
Ground
PWR
2
GND
Ground
PWR
3
12 V
Power +12 V to +24 V
PWR
4
12 V
Power +12 V to +24 V
PWR
1
2
3
4