What Is A Link - Universal Devices ISY-994i User Manual

For example, a lamp module with a table lamp attached would likely be a Responder
to the scene. When the scene is turned on, the lamp module would turn on. When
the scene is turned off, the map module would turn off. Responders are colored
blue within a scene.
12.1.4

What is a Link?

Links defines relationships between controllers and responders.
Figure 194: Link example
Links are in a single direction. If you wish two-way control, you will need to repeat
the link setup process from the responder to the controller.
These are one-to-one relationships. Links can include additional information such as
on-level and ramp-rates. Links are setup between controllers and responders.
The following depicts a very simple link where device A is the controller and Device C
is the responder. In this instance, when Device A is turned on, it sends a command to
Device C causing Device C to turn on. In this case, Device B is simply acting as a
repeater, re-broadcasting the message but not acting on it.
Figure 195: Link Relationship example
Every Insteon device has a record of all of the Controller/Responder relationships
that affect that device. Controllers know which Responders they are linked to, and
Responders know which Controllers they are linked to.
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