LBC: the prime focus optical imagers at the LBT telescope

An electrical apparatus which does not require intervening combinational logic devices to condition signals produced by a computer prior to applying same to the switching devices for an electrical end device, such as a electric motor or the like is described. Controllers incorporating the electrical apparatus can be interconnected in a peer-to-peer arrangement permitting each controller to communicate with any or all of the other controllers within the network. Various types of devices, such as input/output devices, personal computers, sensors incorporating logic, etc., are connected to a way station associated with each controller permitting data collected by such a device associated with one way station to be accessible by its associated controller or by another controller within the peer-to-peer network