Installation Guide

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OpenWay Riva Water Products Ordering Guide
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Water Modules Ordering Guide
Security
Users have the option of enabling enhanced security in Cellular 500Ws. Itron Security
Manager (ISM) is a feature of the OpenWay Network that ensures that certain Cellular 500W
commands are controlled through secure radio communications between the handheld
computer or Mobile Collector and the Cellular 500W .
There are two fundamental security processes used in the OpenWaysystem to ensure
confidentiality and validity of secured commands.
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Authentication. Authentication is the process of confirming that an artifact is genuine or
valid. Authentication in the Cellular 500W is the process of verifying a request is from a
valid source and in its original form.
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Encryption. Encryption is the process of transforming information to make it unreadable
to anyone who does not have a valid security key. There are two types of encryption:
symmetric and asymmetric. Symmetric encryption uses a shared key to decrypt or encrypt
information. Asymmetric encryption uses a private key to encrypt and a public key to
decrypt. Data transmissions over the network are protected using AES-256 encryption.
Transmission Modes
The Cellular 500W is an IPv6 Wisun compliant device that operates in Mobile Mode or
Network Mode.
Mobile Mode
In Mobile Mode, the module transmits every nine seconds over multiple RF channels to report
on:
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meter register value
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cut cable or communication error event
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reverse flow (encoder version selected)
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system leak status
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low battery indicator
Network Mode
In Network Mode, the module reports four interrogation cycles daily. Each interrogation
collects six hours of 3,840 buckets of interval and event data. Interval data is configurable
from 1 minute to 1 hour (for example, 160 days of hourly data or 40 days of 15 minute data).
Interval options are 5, 15, or 30 minutes.
Cellular 500W Remote Module Installation Guide 1 Introduction
October 11, 2021 815-0618-00 REV 000 Itron, Inc. Page 8 of 44
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