What are the ZigBee Device Descriptors?
top Every subunit and thus Application Object has associated Device Descriptors such as Simple Descriptor. Device Descriptors contain data attributes (both input and output) that describe physical device. For instance, a thermostat might contain an output attribute temperature which represents the current temperature of a room. A furnace controller may take this attribute as an input and control the furnace according to the temperature value received from the thermostat. Valid values, ranges, and units for the attributes are included as well. The important thing is that a Device Descriptor is specific to the application working with this device. In other words, Device Descriptor is an “application view” of some device at some ZigBee Node. Different applications may have different views of one and the same device, thus a single device may have several distinct Device Descriptors. There are five types of Descriptors specified by ZigBee: • Node specifies type and capabilities of the node/
