Z
ZCU Tool
See Zigbee Certificate Updater Tool (ZCU Tool).
zero crossing
The event of standard AC line voltage crossing the zero volt, or reference level, from positive to negative or negative to positive. An electricity meter monitors its zero crossings and interprets their absence as a loss of power.
Zero Touch Provisioning (ZTP)
ZTP is a RESTful API for storing and retrieving information about Milli-based devices, and it enables application clients to register these devices and their associated meta data to the Device Management Service (DMS) repository.
Zigbee
A specification for a suite of high-level communication protocols using small, low-power digital radios. A wireless network used for home, building, and industrial control. It operates in the 2.4 GHz (ISM) radio band. The specification supports data transmission rates of up to 250 kbps at a range of up to 30 meters. For Itron metering purposes, it is the application chosen to run home area networks (HANs). Each OpenWay CENTRON Meter comes factory-equipped with a Zigbee radio chip to enable in-home communication for purposes of customer communication, data presentment, load control, and demand response. Zigbee technology is a registered trademark of the Zigbee Alliance.
Zigbee Certificate Updater Tool (ZCU Tool)
A tool that allows customers using Zigbee devices to apply Zigbee HAN device certificates (that they order from Itron) over the air to their intended meter NICS. Any meter with a Zigbee radio requires one of these certificate to connect with other Zigbee SEP 1.0 (ECC) devices. Currently, Itron does not apply Zigbee HAN device certificates and private keys as part of the manufacturing process, so the ZCU tool is used for this purpose instead.