| 摘要 |
The present invention relates to a switching device for optional connection of a number of incoming electrical lines with a number of outgoing electrical lines, where the incoming and outgoing lines each are connected to individual contact surfaces (34, 36, 38) respectively, that the contact surfaces are arranged in concentric ring-shaped areas, a manoeuvring unit arranged in the centre of said ring-shaped areas, drive means (14) capable of rotating said manoeuvring unit, a number of contact elements (44) arranged to said manoeuvring unit, whereby the manoeuvring unit is capable of positioning said contact elements for obtaining electrical contact between specific, chosen, contact surfaces. |
