User manual

15 ARK-3390 User Manual
Chapter 2 H/W Installation
2.3.1.6 USB Connector
ARK-3390 provides five USB interface connectors, which give complete Plug & Play
and hot swapping for up to 127 external devices. The USB interface complies with
USB UHCI, Rev. 2.0 compliant. The USB interface can be disabled in the system
BIOS setup. Please refer to Table. 2.6 for its pin assignments.
The USB connectors are used to connect any device that conforms to the USB inter-
face. Most digital devices conform to this standard. The USB interface supports Plug
and Play without turning off computers.
Figure 2.7 USB connector
2.3.1.7 Compact Flash Card
ARK-3390 is equipped with an external CF card inside the chassis.
2.3.1.8 Power ON/OFF Button
ARK-3390 comes with a Power On/Off button, that support dual function of Soft
Power -On/Off (Instant off or Delay 4 Second), and Suspend.
Figure 2.8 Power Button
2.3.1.9 LED Indicators
There are two LEDs on ARK-3390 front metal face plate for indicating system status:
PWR LED is for power status; and HDD LED is for HDD & compact flash disk status.
Figure 2.9 LED Indicators
2.3.1.10 Power Input Connector
ARK-3390 comes with a two pins header that carries 9~34 VDC external power input.
Figure 2.10
Power Input Connector
Table 2.6: USB Connector
Pin Signal name Pin Signal name
1 VCC 2 USB_data-
3 USB_data+ 4 GND