GENERAL DESCRIPTION USB 7 I/P & 7 O/P (URK77) is a simple cheap USB-controlled data acquisition card. It supports seven output relays and seven inputs. Output relays can be used to control electrical devices remotely from a PC over a USB link such as lamps, motors, locks. Inputs could be used to monitor external events and signals as a feedback for process. Some of the possible applications: * Home Automation * Lighting Control * Garden Equipment Control * Industrial Automation All outputs and inputs are opto-isolated to insure safety in industrial applications. The module communicates with host PC over full speed USB link. When connected to PC, the module will appear as a serial port in Windows Device Manager. Features * Seven output relays 12V coil / 5A contacts (resistive load). * Normally open and normally closed contacts are available. * LED indicator for each relay status. * All output relays are opto-isolated. * Seven external inputs (Dry contact or proximity sensor). * LED indicator for each input status. * All inputs are opto-isolated. * Required supply 12V/200mA for relay circuit driving. * URK77 kit is protected against reversed polarity of power. * Simple control instructions. * Dimension: 270 x 85 x 18 mm.