Because Z-Wave is a very low bandwidth protocol that is intended to have a sparse network topology, the protocol stack attempts to communicate in as few bytes per message as possible. The stack consists of five layers, as shown in the following figure:
Z-Wave Protocol Stack and OSI model comparison. Z-Wave uses a five-layer stack with the bottom two layers (PHY and MAC) defined by the ITU-T G.9959 Specification.
The layers can be described as follows:
- PHY layer: Defined by the ITU-T G.9959 Specification. This layer manages the signal modulation, channel assignment, and preamble binding at the transmitter and preamble ...
