Hi, Frits!
Although it normally looks as if the different MSB-sensors are connected in a serial order to the S or MSB port of the receiver the sensor all work parallel and thus can be connected via a Y-cable. The Powerbox Digiswitch V2 connects power to the receiver and usually needs larger diameters for the leads so it depends on the y-Cable you want to use.
It also depends an the receiver you want to apply. On the pro-receivers there are special B-ports and you only should use these B-ports to connect the powersupply.
Sensors should be plugged in the S or MSB ports respectively. Powersupplies only tothe B ports!
with regards
profimc
