14 power supply, 1 connector, 2 external power connector (alternative) – Kontron KTA55-pITX User Manual
Page 30: Kta55/pitx user's guide
KTD-S0031-E
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Power Supply
KTA55/pITX User's Guide
14 Power Supply
The KTA55/pITX SBC has a power input voltage range from +4.75 to +5.25V DC. All other voltages are gene-
rated onboard (e.g. +3.3V system and +1.5V memory voltage).
14.1 Connector
The power supply is injected through the connector J2900 (3 pins, DC power jacket 2.1mm).
Header
Pin
Signal Name
Function
1
VCC
1)
Power supply +5V
2
GND
Ground
1
3
GND
Ground
Warning:
Don't overload the onboard system voltage +3.3V (microSD card socket, LPC bus and Digital I/O connector). The
maximum current should not exceed 250mA.
14.2 External Power Connector (Alternative)
This connector can also be used to power the board with +5V DC instead of the round power jacket. The
external voltage input is available through the connector J2901 (6 pins)
Header
Pin
Signal Name
Function
1
VCC
1)
Board power supply +5V
2
VCC
1)
Board power supply +5V
3
GND
Ground
4
GND
Ground
5
VCC
1)
Board power supply +5V
6
VDD
1)
External voltage (backlight)
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.
- the enclosure of the peripheral device fulfills the fire-protecting conditions of IEC/EN 60950.