Suppose the following scenario (see picture):
We have two engine rooms, where a pump and a light in each. We also have a flow sensor and a light.
What we want to do is to command both pumps and light and sensors reading rooms to see if results were actually commands.
Therefore we connect a RF4432D27 addresses in each room with 1 and 2 The mirror has two inputs and two outputs so each room can make the desired function.
Team 1 is accessed directly from the PC (via the RF4432D27 team), but Team 2 (for geographical reasons) can not be accessed directly from the PC, so to get the equipment we use at Station 1 as router (1 + WAY WAY 2 in the image).