Methods are provided for removing edge beads from spin-on films. A plurality of reeds are fixedly mounted on a center block and each excited to vibrate by a corresponding actuator. The first comparator receives the ramp signal and a control signal to provide a normal operation control signal. As the material of the suppression layer, polyvinyl alcohol which is an organic polymer having an OH group is used. The distribution module transfers the queues to the dialing devices so that the dialing device can place telephone calls. In the connection device according to the invention, the first connector is mounted in a lateral recess on the side of the module, the second connector is mounted with free rotation in the rack on supports which also include a locking handle for ensuring the electrical and mechanical connection of the module in the rack.