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09/
INTERNAL CONNECTORS
09.01.
DC POWER - ATX CONNECTOR (INT12V - J10)
The mITX-BDW-U boards are designed to be supplied from either a 12 V ATX-style power supply or an
external 19 V power adapter.
ATX+12 V-4p Power Connector (J10):
NOTE
TYPE
PWR
PWR
Warning:
Hot plugging any of the two power connectors (J10 and J3) is not allowed. Hot plugging might
damage the board. In other words, turn off main supply etc. to makesure all the power lines
(+12 V or +19 V) are turned off when connecting to the motherboard.
09.02.
DC POWER - JACK CONNECTOR (EXT19 V – J3)
Either the DC Power Jack Connector (Ext19 V) or the "Int12 V." connector must be used to supply
the board with +12 V +/-5 % or +19 V+/-10 %.
The Ext19 V power connector has Vin to the center pin and mates with Ø 5.5 mm DC Power jack
with Ø 2.5 mm pin hole. Maximum allowed current is 5A.
Warning:
Hot Plugging power supply is not supported. Hot plugging might damage the board.
09.03.
FAN CONNECTORS (J34 AND J29)
The FAN1SYS (J29) can be used to power, control and monitor a fan for chassis ventilation etc.
The FANCPU (J34) is used for the connection of the FAN for the CPU.
The 4pin header is recommended to be used for driving 4-wire type Fan in order to implement
FAN speed control. 3-wire Fan support is also possible, but no fan speed control is integrated.
4-pin Mode:
HEADER
PIN
1
2
3
4
MITX-BDW-U (KTD-NO886-B)
SIGNAL
GND
2
GND
1
SIGNAL
PWM
TACHO
12 V
GND
www.kontron.com
PIN
SIGNAL
4
+12 V
3
+12 V
DESCRIPTION
PWM output
Tacho signal
Power +12 V
Ground
TYPE
NOTE
PWR
1
PWR
1
TYPE
O-3.3
I
PWR
PWR
// 30 - 104
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