The HomePnP specification details a set of behavioral characteristics for products and systems within the home that will allow them to take actions based on the state of the home. HomePnP is not a programming language. It is however, a set of implementation rules that utilize a programming language called CAL (Common Application Language). The standards we described in earlier parts of this guide focussed on low-level communication protocols and device-level product models.

The HomePnP specification does not concentrate on these protocols; instead, it establishes a common application level control protocol that enables devices on disparate home networks to interoperate. The specification itself contains details about ...

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