
CP3 version 3003
67
In this example, we have two MZCs: ground level and 1st floor level. They will be named MZC 1 and MZC 2
in the following.
MZC 1 has two entrances (DPOs) from ground level and one entrance (DPO) from MZC 2 (the transition
from level 1 to ground level is also an entrance). This makes three entrances in total.
MZC 1 also has two exits (DPOs). One exit to Main Street and one exit to MZC 2.
MZC 2 has one entrance (DPO) from MZC 1 and one exit (DPO) to MZC 1.
Each DPO consists of two sensors connected to the 3-wire Dupline® bus.
In the diagram below, we have converted the 2-floor installation into modules. We need 6 ultrasonic
sensors and 2 loop detectors for the entrances and exits. We use loop detectors, because the ultrasonic
sensors cannot be used outside on a roof.