Kontron KTUS15-mITX - 1.1 Basic - Manual (Page 23)

KTD-00774-G KTUS15/mITX Page 23 of 84
1022-6309 Cable ATX Power for KTUS15 Part A
The PN 1022-6309 Adapter cables can be used as standard ATX PSU (for prototyping etc). The ATX
connector part can be cut of so that cable kit can be used for small batches as well.
1. 5A (max.) per wire is allowed.
2. Recommend using 12V input if 12V is already needed for devices like backlight inverter, HDD etc.
3. If 12V is not needed then 5V input will reduce power loss to a minimum.
4. Customised Power Cable kit is possible (MOQ is 500).
1022-6309 Cable ATX Power for KTUS15 Part B
4.2 Power Connector (PWR)
The KTUS15 boards shall be supplied by a single supply DC voltage in the range 5-25V DC +/-5%.
Note Type Signal PIN Signal Type Note
PWR GND 7 1 +Vin PWR
PWR GND 8 2 +Vin PWR
PWR GND 9 3 +Vin PWR
PWR GND 10 4 +Vin PWR
PWR GND 11 5 +Vin PWR
PWR GND 12 6 +Vin PWR
The board will power on when the VIN voltage raises above 4.75V DC.
Notes:
The POWER_UP signal input (available on the FEATURE connector) can be used to externally control the
power on of the board. The signal has a 100kOhm onboard pull-up to Vin. The positive threshold of the
signal is ~1.5V DC with some hysteresis. Applying a resistor between POWER_UP and GND can make the
board power up as a function of Vin. E.g. it can be used if a single voltage PSU is used and it has slow
ramping power up or it can be used if voltage must be at a certain minimum level before Motherboard turns
on in order not to overload the PSU until it is ready.
The PSUP_OFF signal (available on the FEATURE connector) is open collector output signal which can
optionally be used as PSON input to an ATX PSU to keep it turned on until this signal gets inactive (Windows
Shutdown etc.)