Abstract: A failure insertion unit for connection to an object under test connected to a bus or network interface, wherein the object under test can be subjected by means of the failure insertion unit to fault voltages that are greater than the maximum voltage for which the bus or network interface is designed, with a fuse circuit which protects a bus or network interface connected to the failure insertion unit from voltages that are greater than the maximum voltage for which the bus or network interface is designed. This provides a way to be able to use failure insertion units even in systems that work with buses with high bandwidths without the risk of damaging bus or network interfaces due to overvoltages.

Abstract: A cascade conveyor for sorting and conveying container closures, such as for conveying and sorting screw closures in a drinks filling installation, comprising at least one sorting bar which can be moved in a conveying direction and which is orientated transversely relative to the conveying direction for conveying the container closures from a collection receptacle which receives unsorted container closures to a closure unloading zone. There may also be provided in the closure unloading zone a conveyor belt which extends when viewed in the gravitational direction below the sorting bar in order to laterally discharge container closures conveyed by the sorting bar.

Abstract: A cascade conveyor for sorting and conveying container closures, such as for conveying and sorting screw closures in a drinks filling installation, comprising at least one sorting bar which can be moved in a conveying direction and which is orientated transversely relative to the conveying direction for conveying the container closures from a collection receptacle which receives unsorted container closures to a closure unloading zone. There may also be provided in the closure unloading zone a conveyor belt which extends when viewed in the gravitational direction below the sorting bar in order to laterally discharge container closures conveyed by the sorting bar.