A communication system is provided that includes a controller system (1), a master control (2) and at least one slave control (3). The controller system and the master control (2) are connected via a multipole connection (4). The master control (2) is adapted to receive a multipole signal via the multipole...http://www.google.de/patents/US7653442?utm_source=gb-gplus-sharePatent US7653442 - Communication system comprising a controller system and a master control means connected via a multipole connection means
