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A diaphragm gas meter for Itron’s gas smart meter platform. Has a standardized digital communication interface between the main board and the communication board to ensure safe infrastructure investments through future upgradeability.

Ganz

A Hungarian electricity meter.

gap

A hiatus in the usage data collected from a meter.

gap fill interrogation (GFI)

A set of multiple services that work together to identify gaps in reading data that can occur during the reading import process. GFI attempts to fill those gaps that meet size eligibility by requesting the missing readings from the meter through the collection engine web service interface.

gas day

A specific time of day when a gas meter begins its 24-hour day. For many utilities, the gas day is 9:00 AM, but this is not always the case.

gas day take (GDT)

The time each day when a gas ERT module reads and records demand, time-of-use (TOU), and consumption interval data from the gas meter. The GDT meter reading is closest to but not after the GDT.

Gas Distribution Safety

A solution that visualizes and manages new alarms and functionality available from Itron’s Intelis Gas Meter via the advanced metering infrastructure (AMI) network. These alarms include high-flow, high-temperature, high-pressure, low-pressure, air-in-pipe, internal shutoff valve actuation, and pressure tamper.

Gas IMU

A two-way radio with metrology capabilities that can be installed on diaphragm, rotary, and turbine gas meters. The Gas IMU allows remote meter reading, and provides asynchronous alerts for leaks, meter tampering, and other critical events, and it can be remotely configured. There are multiple generations of the Gas IMU, including the Gas IMU 200, 300, and 300A.

Gas IMU 200

See Gas IMU.

Gas IMU 300

See Gas IMU.

Gas IMU 300A

See Gas IMU.

Gas IMU 500T

A communications module that connects electronic volume correctors (EVCs) to a utility network. It provides a solution for collecting temperature and pressure telemetry data, events and alarms, corrected and uncorrected consumption, and interval data reads from EVCs and then backhauling that data to the head end system. Once the data arrives at the head end, it is made available for presentation in the user interface and for export to other systems, such as an MDMS or analytics package.

Gas IMU Configurator

A software tool that, in conjunction with a Field Service Unit (FSU), allows users to configure and test Itron Gas IMUs. Supported tasks allow joining and unjoining Gas IMUs to gas meters, validating meter reading values with a check read, and generating configuration reports for specified Gas IMUs. After executing tasks, the Gas IMU Configurator produces results files which describe in detail what was loaded by the Gas IMU Configurator and the processing results. The primary use case for this tool is provisioning Gas IMUs in a utility's gas meter shop or in a gas meter OEM facility. See also join and unjoin.

Gas Interface Management Unit (IMU)

A two-way radio with an integrated gas meter register that can be installed on diaphragm, rotary, and turbine gas meters. The IMU allows remote meter reading, and provides asynchronous alerts for leaks, meter tampering, and other critical events, and it can be remotely configured.

gateway

A device that handles communications between the utility and the customer's devices such as thermostats, water heaters, and pool pumps. Gateways offer two-way communications, and often provide the customer with the ability to override the utility’s load reduction control signal. Gateways overcome the limitations of one-way load control by sending confirmation signals back to the utility. Web-based software allows customers to see the status and effects of load control actions.

Gateway

A common interface to the Itron mesh network and performs the following key functions within the Control Platform architecture:

Weighted prioritization of multiple classes of traffic destined for the mesh network.
Adaptive bandwidth management to prevent overutilization of the mesh network infrastructure and to minimize timeout.
CoAP (Constrained Application Protocol) proxy services to facilitate communications between client applications and Milli 5-based devices on the mesh network.

By metering traffic and queuing traffic based on configurable priorities, Gateway provides essential Quality of Service (QoS) for client applications while at the same time regulating traffic to each AP. An Adaptive Rate Limiter and Packets in Flight (PIF) Limiter automatically adjusts the amount of traffic sent to each AP based on traffic indicators such as the round-trip time and the number of successful packets versus failed packets.

Gateway additionally provides insightful network performance statistics on the application's dashboard. The dashboard displays several charts, each of which presents a different set of statistical data. This data provides visibility into network activity and performance such as the number of packets in flight (PIF), the number of packets queued for transmission, device availability, and the number of timeouts.

Gaussian frequency shift keying

A type of frequency shift keying modulation that utilizes a Gaussian filter to smooth positive / negative frequency deviations.

GDP

See global development process (GDP).

GDT

See gas day take (GDT).

gear shifting

An innovation within the Gen4 technology that lets a 300 kbps-capable device not only adjust data rates for backward compatibility but also to dynamically optimize between performance and range. With devices supported by Gen5 technology, both modulation and speed changes can be made through gear shifting. Earlier Gen 2 devices were limited to 100kbps.

GECKO

Internal name no longer associated with Gas Interface Management Unit (IMU).

GEM

See Grid Edge Manager (GEM).

Gen4 technology

The networking technology integrated into Itron devices that provides support for new transports, Micromesh Technology, faster data rates, gear shifting, and increased memory. For coverage in any type of territory, the modular architecture of Gen4 enables customers to add support for cellular/mobile transport along with RF mesh and support for other transports in the future. The increased data rates support up to 300 kbps performance with lower latency, and the ability to gear-shift to lower data rates supports not only backward compatibility with earlier generations of Itron devices, but also dynamic optimization between performance and range. Increased memory enables Gen4 to support the broadening range of new device types coming onto the smart grid. Gen4 technology provides support for Gen4 versions of the Access Point (AP), Bridge, MicroAP (uAP) Module, and Relays.

Gen5 500G ERT Module

A gas module which provides gas meter reading, high flow alarms, interval data and remote firmware download to improve safety and gas operations. It is designed to be read under I Itron Gen5 industrial IoT networks, or by legacy ChoiceConnect handheld or mobile readers.

Gen5 500W ERT Module

A water module featuring a compact design and industry-leading battery life. It is designed to deliver advanced functionality on Itron's Gen5 industrial IoT network. The module can also be read under legacy meter reading applications, enabling customer flexibility and choice.

Gen5 550G ERT Module

Gen5 A-Series Electricity Meters

A smart multi-functional static meter that allows for remote connect and disconnect of electrical services.

Gen5 CENTRON II Meter

A solid-state single-phase residential electricity meter which is compatible with the Itron Gen5 industrial IoT (IIoT) network.

Gen5 CENTRON Polyphase III Meter

A solid-state polyphase electricity meter which is compatible with the Gen5 network.

Gen5 Communications Hub

Allows access to the Gen5 communication solution that provides scalable high performance, reliable, secure DNP3 transport and inter operable head end software and advanced Radio Frequency (RF) Mesh technology. Additionally permits using the UtilityIQ software suite that acts as the centralized hub between the metering system and utility processes via the modem.

Gen5-EGM

See Gen5 Routing Node ERT Gateway Mesh (Gen5-EGM).

Gen5 Riva Electricity OEM Configurator

A software suite designed for provisioning communication modules, electric meter models, and Itron Load Control Switch (LCS) devices. Formerly known as Manufacturing Utility Test Tool (MUTT).

Gen5 Riva IEC Singlephase Electricity Meter

An advanced metering infrastructure (AMI) meter that combines robust electric smart metering functionality with a more powerful version of the innovative distributed intelligence (DI) edge computing capability that can run on Itron’s Gen5 IoT (IIoT) network.

Gen5 Riva Meter

An electricity meter that combines robust smart metering functionality with high-performance communications capabilities and a distributed intelligence platform to deliver differentiating capabilities and new approaches to meter-to-grid applications using Gen5 Riva communication solution. Designed to ANSI standards for U.S. markets.

Gen5 Riva Polyphase Electricity Meter

Gen5 Riva Singlephase Electricity Meter

Gen5 Routing Node ERT Gateway Mesh (Gen5-EGM)

A device that operates as an additional node to build density or extend the perimeter of an existing mesh within the GenX network. A Gen5 ERT Gateway Mesh improves read rates and connectivity in geographic areas where network coverage is not optimal. The Gen5 ERT Gateway Mesh receives data from devices within the network. The Gen5 ERT Gateway Mesh supports both RF and PLC links within a GenX mesh network. Also known as Gen5-EGM.

Gen5 SL7000

A smart meter that can process, analyze, communicate, and react to grid conditions and business requirements in real-time. The meter, when connected to the optional Gen5 Communications Hub, is capable of using the Gen5 communications solution, that provides scalable high performance, reliable, secure DNP3 transport and inter operable head end software and advanced Radio Frequency (RF) Mesh technology. This product also permits using the UtilityIQ software suite, that acts as the centralized hub between the metering system and utility processes via the modem. Designed to IEC standards for non-U.S. markets.

Gen5 technology

A networking technology that provides the breakthrough capabilities to enable more value to be unlocked from critical infrastructure across new battery-powered devices, new applications powered by distributed intelligence, and enhanced performance supporting mission-critical processes—all while being fully backwards compatible with previous generations. Gen5 technology provides support for Gen5 versions of the Access Point (AP), Bridge, MicroAP (uAP) Module, Relays, Milli, network interface card (NIC), SocketAP 5, and more, which, in turn, support the high data capacity of the network with data rates up to 2.4 Mbps.

General Data Protection Regulation (GDPR)

A regulation in EU law on data protection and privacy in the European Union and the European Economic Area. It also addresses the transfer of personal data outside the EU and EEA areas.

general packet radio service (GPRS)

A packet-based wireless communication service that provides continuous connection to the Internet over second generation (2G) and third generation (3G) networks. GPRS transmits data in packets and does not support voice communications. Multiple devices are able to share the same connection channel to transmit data packets upstream and downstream within a network.

generation capacity

The maximum output (MW) that generating equipment can supply to a system load.

Generic Meter Interface (GMI)

A software component of UtilOS firmware. GMI is the metering interface to electricity meters operating in energy-only mode and IMUs. GMI provides meter reads and data logs and event logs of the meter data stored on the Itron NIC. See also Smart Street Lighting.

Generic Meter Reader (GMR)

See Global Meter Reader (GMR).

GenX NIC

A network interface card (NIC) that connects the integrator partner’s meter/sensor device to the Itron GenX mesh network. The NIC is responsible for communication tunneling, acting as a Device Language Message Specification (DLMS) client, storing DLMS keys, secure communication with network through Network Manager, and support of RF mesh communication.

GenX technology

A networking technology that refers to all generations of the core network technology. The Gen5 network platform specifically refers to the current generation of the network platform technology. For example, customers that have multiple generations of network devices deployed are GenX customers, while a new customer would be referred to as a Gen5 customer.

geocoding

A process of associating geographic coordinates (latitude and longitude) from other geographic data, such as street addresses or postal codes.

geoendpoint

An ERT module that communicates with the Fixed Network it belongs to through an intermediary ERT module called its georelay.

geoendpoint candidate

A device with less-than-optimal read quality that has not been programmed for geomode.

geographic information system (GIS)

A system of hardware, software, and data designed to capture, store, manipulate, analyze, manage, and display geographic information in the form of maps, globes, reports, and charts.

geomode

A communication mode in which one Encoder/Receiver/Transmitter (ERT) module, the georelay, passes messages back and forth between another ERT module, the geoendpoint, and the Fixed Network to which the modules belong. By acting as an intermediary, the georelay enables the geoendpoint to communicate with the network, which environmental conditions would otherwise prevent it from doing.

georelay

An Encoder/Receiver/Transmitter (ERT) module that functions as an intermediary for another ERT module (the geoendpoint) that cannot communicate directly with the Fixed Network the two modules belong to. The georelay passes messages back and forth between the geoendpoint and the network.

georelay candidate

A device with good read quality that may serve as an intermediary Encoder/Receiver/Transmitter (ERT) module to assist a geoendpoint in communicating with the Fixed Network it belongs to.

GET VPN

See Group Encrypted Transport VPN (GET VPN).

GFI

See gap fill interrogation (GFI).

GFSK

See Gaussian frequency shift keying.

GHz

See gigahertz (GHz).

gigahertz (GHz)

A measure of frequency, one billion cycles per second, or one billion hertz (Hz). Gigahertz is most commonly used to measure computer processing speed.

gigawatt (GW)

A unit of power equal to 1 billion watts, 1 million kilowatts, or 1,000 megawatts.

gigawatt hours (GWh)

A unit or measure of electricity supply or consumption equal to one billion watt hours (Wh).

GIS

See geographic information system (GIS).

global development process (GDP)

Deprecated term. The GDP process was replaced with the new development process (NDP ).

globally unique identifier (GUID)

An alphanumeric string of characters, usually 128-bits long, that is used in software applications to provide a unique identifier for files, names, resources, unique primary keys in databases, and so on.

Global Managed Services (GMS)

Itron’s Global Managed Services (GMS) team provides expert support and administration where Itron manages and administers software and infrastructure on behalf of its customers. Our GMS team ensures systems are available to customers 24 hours a day via different delivery models based on customer needs.

Global Meter Reader (GMR)

A software component that—along with database (DB) and Middle Tier (MT)—is part of Advanced Metering Manager (AMM) application and is responsible for managing network related jobs including meter reading, ping, and meter programs. On startup, the GMR reads meter information from the master database and then manages all of the meter related jobs through NICNAC commands that interrogate and configure the NICs. See also Generic Meter Reader (GMR).

Global Positioning System (GPS)

A satellite-based system that provides positioning and navigation information. By triangulation of signals from three of the satellites, a receiving unit can pinpoint its current location anywhere on earth to within a few meters. Use of at least three satellites is necessary to calculate a two-dimensional position (latitude and longitude) and track movement. Four or more satellites are needed to determine a three-dimensional position (latitude, longitude, and altitude). GPS uses the World Geodetic System (WGS 84) as its reference coordinate system.

Global R&D Metrics (GRDM)

An internal Itron toolset that provides dashboards and reports of various project performance metrics for executives. GRDM is integrated with Project Web App (PWA) and project sites to govern and manage the R&D project development documentation approval process and lifecycle stages.

Global System for Mobile Communications (GSM)

Originally Groupe Spécial Mobile. A standard set developed by the European Telecommunications Standards Institute to describe protocols for second generation digital cellular networks used by mobile phones. Developed in the 1980s, GSM was first deployed in seven European countries in 1992. Operating in the 900 MHz and 1.8 GHz bands in Europe and the 1.9 GHz PCS band in the United States, GSM defines the entire cellular system, not just the air interface.

GMI

See Generic Meter Interface (GMI).

GMR

See Generic Meter Reader (GMR).

See Global Meter Reader (GMR).

GMS

See Global Managed Services (GMS).

good interval

An interval that is used to replace missing or bad intervals during the reading validation and estimation (VE) process. Good intervals cannot have an estimated (EST) or power outage (PO) status, cannot have been collected on a utility-defined holiday, and generally represent the same time frame as the bad or missing interval they replace.

GPRS

See general packet radio service (GPRS).

GPS

See Global Positioning System (GPS).

GRDM

See Global R&D Metrics (GRDM).

GRDM Project Names

Naming conventions applied to GRDM projects are categorized by the following systems and business lines.

GreenBe™ Customer Engagement Platform

GreenBe is an Australian technology company that delivers platforms for government and utilities that help authorities nudge, engage, and propel hard to reach customer behaviors. Their customer engagement platform delivers digital transformation and powerful engagement across the energy, water, and government sectors.

Grid Edge Essentials

A solution that enables smart grid transformation in the public power sector and provides all the necessary components to realize operational value now and form the foundation for future services and use cases.

Grid Edge Intelligence

Enabled by distributed intelligence (DI) technology, Itron's Grid Edge Intelligence portfolio empowers utilities with greater visibility and control at the edge by connecting, detecting, operating, and controlling devices to deliver an efficient, optimized, and smarter grid for communities.

Grid Edge Manager (GEM)

A real-time aggregation and display engine for advanced metering infrastructure (AMI) data, Distributed Energy Resource (DER) data, and forecasts and dynamic operating envelopes aggregated from the edge (meters and DERs) up to transformers, feeders, and substations.

grid operations

Outcomes that support data intelligence through a combination of software and services that help users gain valuable insight into your operations, maximize asset life, enhance efficiency, and improve customer satisfaction.

grid operator

The entity that oversees the delivery of electricity over the grid to the customer, while assuring consistently high levels of reliability and public and worker safety. The grid operator potentially could be independent of the utilities and suppliers.

GridScape Configuration Server

An application used for configuring Access Points (APs) and MicroAPs in Itron networks. Unlike the GridScape application, the GridScape Configuration Server does not collect statistical data.

GridScape Network Manager

A web-based network management application that runs from the utility back-office for remote, secure configuration and management of the Itron Distribution Automation (DA) communication networks.

gross generation

The total amount of electric energy produced by the generating units at a generating station or stations, measured at the generator terminals.

Group Encrypted Transport VPN (GET VPN)

A Cisco^®-proprietary virtual private network (VPN) that is designed to simplify VPN management and provisioning.

GSM

See Global System for Mobile Communications (GSM).

GUID

See globally unique identifier (GUID).

GW

See gigawatt (GW).

GWh

See gigawatt hours (GWh).