Kontron KTT30-mITX - Manual (Page 18)

KTD-N0857-A Page 15 Rear Connectors
KTT30/mITX Users Guide
7 Rear IO Connectors
7.1 DC Power Connector
The KTT30/mITX board has a power input voltage range from +4.5V to +5.5V. All other voltages are gene-
rated onboard (e.g. +3.3V / +1.8V system voltage).
The power supply is supplied via the connector J2 (3 pins, DC power jacket 2.1mm).
Header Pin Signal Description
1 VCC5 1) Power supply +5V
2 GND Ground
3 GND Ground
Alternative through the internal Power connector J17 (4 pin Micro-Fit). Notice that the +5V power lines on
J2 and on J17 are connected on the board.
7.2 USB Connectors (Standard USB2.0)
The USB interface comes with three USB ports which follow the EHCI specification (USB 2.0 compliant). You
can expand the amount of USB connections by adding external hubs. Two ports are available on a standard
connector and one (client) port on a micro USB connector. All ports support USB 1.1 low and full speed
devices without a companion USB 1.1 host controller.
Two USB ports are available through the standard USB connectors J23 and J24.
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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.
Header Pin Signal Description Type
1 VCC5 1) Power +5V PWR
2 USB- USB port (negative) DSIO-3.3
3 USB+ USB port (positive) DSIO-3.3
4 GND Ground PWR
Notes: 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.
The contacts for USB devices are protected and suitable to supply USB devices with a maximum input current of 500mA. Do
not supply external USB devices with higher power dissipation through these pins
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