The numbering box for typographic numbering in sheet or web fed printing machines, said box numbering with p digits k*n items on said sheets or web for allowing a sequential collecting of said items in the finishing and collating process of layers of q sheets or of web cut into layers of q sheets, wherein said box carries out a purely sequential actuation for digits 1 to s, where 10S is smaller or equal to q, a purely individually settable actuation for digits s+1 to r, where the maximum number printable by digits 1 to s and s+1 to r is smaller or equal to k*n*q, and a sequential actuation for digits r+1 to p.

An operating system for a motorized barrier includes an operator for controlling movement of the barrier between various positions and an accessory. The system includes a wall station transmitter, a wireless keyless entry transmitter and/or a portable remote transmitter. The system also includes an accessory device such as a light fixture or switch that controls a load, wherein the device is capable of also receiving wireless signals to control the fixture or the load. The system allows for pre-storing of an operator serial number that is needed to communicate with the accessory devices. The operator serial number may also be randomly derived from a timer or by parsing a serial number generated by one of the transmitters.

A method for generating random data, the method comprising repeatedly performing a series of operations, and the series of operations comprising processing a seed value to generate a resulting value for use as the seed value in a subsequent performance of the series of operations and to generate output random data; wherein the series of operations also comprises: determining whether a predetermined amount of new truly random data is available; and if such data is available, modifying the generation of at least the resulting value in dependence on the new truly random data.