The RU2-CS1 controls 8 open-collector outputs. It also provides 8 separate 0 to 10 Vdc outputs to control external VCAs or other equipment with 0 to 10 Vdc control inputs. Eight status inputs are provided for sensing external switch or transistor closures. The RU2-CS1 connects to a computer through an RS-232 serial link. Commands may be initiated from a terminal program or from user software.