UPC 3002-SLS is a serial line splitter with 2 separate inputs and 6 outputs. Dual power input with autoswitch.
The 2 inputs A and B are separated with A as the primary input. If there is data on both A and B inputs, input A is used. Input B is used only if input A is idle.
The powersupply and both signal inputs are galvanic isolated from the outputs.