User's Manual Part 1

I/O Ports
Most I/O ports are accessible in the cable well at the bottom of the unit. A cover plate is
provided to cover the cables.
I/O Panel
Off / On Button
The Off /On button is located in the cable well, as shown. This button is located near the
side to prevent accidental powering down by the user. The function of the button can be
controlled by the OS. If the 680 hangs for some reason it can always be powered off by
holding the Off / On button in for six seconds.
The 680 also supports the following: Restore on AC on power loss, Wake On LAN, and
Wake On RTC alarm features to control the system power up.
Off / On button Location