Kontron KTT20-pITX - Manual (Page 37)

KTD-S0044-G Page 33 Power Supply
KTT20/pITX User's Guide
Warning: Do not overload the onboard system voltage +3.3V resp. 1.8V (microSD TM card socket, digital I/O connector). The maxi-
mum current should not exceed 250mA.
Note: 1) To protect the external power lines of peripheral devices make sure that
- the wires have the right diameter to withstand the maximum available current.
- to enclosure of the peripheral device fulfills the fire-protecting conditions of IEC/EN 60950.
15.3 Default Power Configuration
In the delivery state the three short circuit jumpers are set (DC power jacket configuration). As far as
possible all three pins should be used (each VCC_IN and VCC) to minimize the current load per pin.
19
1 2
20
DC Power Jacket Configuration
System
(short circuit jumper needed)
19
20
2
1
External Power Supply Configuration
GND VCC
+ --
Power Supply Input ( ) only +5V
OR
Top view
Pin 1 differs
from normal
position
ATTENTION
CAUTION!
If you use an external power supply do not use another voltage then +5V DC.