Tutorial.pdf

Lesson 2: Subsystems – Hierarchical simulation
A Subsystem is like a component, it also have an icon, parameters, input and output ports,
however they are built using a group of components or another subsystems. You can easily
create a subsystem grouping selected components in the layout.
Subsystems will help you to create your own components based on the component library without
programming, or to organize the layout in different hierarchical levels when there are a large
number of components in different levels.
Figure 25 -Hierarchical simulation.
This lesson will show you how to create a subsystem using the previous external modulated laser
from the first lesson. You will become familiar with the subsystems and the component library.
Loading a sample file
• Select the menu File/Load,
• In the samples folder, load “Lesson 1.osd”
Or you can use the previous project from the fist lesson.
Creating a Subsystem
• Select all the components in the layout,
• Right click over the selection,
• From the pop up menu, select Create subsystem
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