Rose Electronics QuadraVista HDMI - Manual (Page 101)

Installation and Operations Manual 97
6. Connect a USB hub to the mouse or keyboard USB ports
located on the front panel. Then connect the touch screen
monitor display to the USB hub.
7. Connect the mouse and keyboard devices to the USB hub.
8. Connect one end of the 12 V DC power adapter to the power
jack by turning the head to screw it on securely.
NOTE (for USA customers only): Connect one end of the
included AC power cord to the 12 V DC power adapter and the
other end to a power outlet (make sure that power is available).