degrees the three incoming channels may be selected in the embodiments in accordance with the invention presented above the incoming channels have been electrically coupled to high speed pads on inner circles 321 or 521 of hmcss stationary unit 300 or 500 respectively while one or more high speed pads on outer circles 331 or 531 of hmcss stationary unit 300 or 500 respectively are electrically coupled to outgoing channels however in accordance with the invention the hmcss switches may be configured so that the incoming channels are electrically coupled to high speed pads on outer circle 731 of stationary unit 700 and the outgoing channels are electrically coupled to high speed pads on inner circle 721 of stationary unit 700 of fig7 fig8 shows hmcss rotary unit 800 with the required connectivity high speed pads 801 803 805 807 and 809 are electrically coupled to high speed pads 811 812 813 814 and 815 respectively high speed pads 802 804 806 and 808 are electrically coupled to high speed pads 816 817 818 and 819 respectively table 4 below shows the connectivity for the selection of one incoming channel at a time high speed pad 711 is electrically coupled.