Model 520C User’s Guide Revision 1.0, 13 September, 2004 Sensus Metering Systems-North America Inc. This document contains proprietary information. It may not be copied, transmitted or distributed, in whole or in part, without the consent of Sensus Metering Systems-North America Inc.
Sensus Metering Systems-North America Inc. CellNet Water MTU User’s Guide REVISION SUMMARY Date Author Change Description 12 August, 2004 GM/CP/AN Baseline 13 September, 2004 GM Removed references to Register wiring. Cleanup.
Sensus Metering Systems-North America Inc. CellNet Water MTU User’s Guide TABLE OF CONTENTS 1. INTRODUCTION ......................................................................................................................................3 1.1 1.2 1.3 2. REFERENCE DOCUMENTS .....................................................................................................................3 OPEN ISSUES ................................................................................................
Sensus Metering Systems-North America Inc. CellNet Water MTU User’s Guide 1. Introduction This document describes how to install, activate, operate and deactivate the CellNet Meter Transponder Unit (MTU). 1.1 Reference Documents The following documents are referenced by this document: [1] RF LAN1 Air Interface Specification (95-1501Rev. A), CellNet, 5 May 2004 [2] Preliminary – Protocol Data Unit Specification, PID 0x02, 0x03, 0x04 – Electric, Gas and Water Meter Packets Rev. C, CellNet, 5 May 2004 1.
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Sensus Metering Systems-North America Inc. CellNet Water MTU User’s Guide 2. CellNet Water MTU Overview The sections which follow provide a high-level functional description of the CellNet Water MTU. 2.1 Features The CellNet Water MTU provides the following features: 2.1.1 Field Configurable The CellNet Water MTU can be configured via the programming interface using the Touch Gun. Configurable parameters are as specified in [ref 2].
Sensus Metering Systems-North America Inc. CellNet Water MTU User’s Guide 2.1.6 FCC The CellNet Water MTU is FCC Approved. The CellNet Water MTU transmits using frequencies in the 900MHz ISM band and as such deployment of the CellNet Water MTU does not require an FCC license. Changes or modifications not expressly approved by Sensus Metering Systems could void the user's authority to operate the equipment.
Sensus Metering Systems-North America Inc. 2.2 CellNet Water MTU User’s Guide Functional Description 2.2.1 Overview This section provides a high-level description of how to operate an endpoint from activation through deactivation of the endpoint. 2.2.2 Description CellNet Water MTUs ship with their batteries connected as part of one package.
Sensus Metering Systems-North America Inc.
Sensus Metering Systems-North America Inc.
Sensus Metering Systems-North America Inc.
Sensus Metering Systems-North America Inc.
Sensus Metering Systems-North America Inc. CellNet Water MTU User’s Guide Table 2-6 Securing the Endpoint to the Mushroom Notice that the Touch Read PaneL (TRPL) is connected to the ECR port labeled Port One (Port One is the only port that has a mounting bracket provided). 2.2.2.2 Activation Activation of the endpoint requires a tool known as the “RF Buster”. The “Buster” is used to close a reed switch on the endpoint via a magnetic field.
Sensus Metering Systems-North America Inc. CellNet Water MTU User’s Guide Table 2-7 RF Buster The RF Buster consists of: • A relatively strong magnet (using the orientation as shown in Table 2-7, the magnet is on the lower right corner of the RF Buster) • An LED/Speaker • A short range RF Receiver, tuned (roughly) to the range of 911.58MHz through 917.58MHz • A button that enables the RF Receiver while it is pressed and held in the down position.
Sensus Metering Systems-North America Inc. CellNet Water MTU User’s Guide Table 2-8 “Busting” the Endpoint If the register has been correctly connected to the endpoint, the meter will be read successfully, and the meter reading will be transmitted to the network 10 times. Thus, following a successful installation of the endpoint, busting the endpoint will result in 10 blinks of the LED where each blink is associated by an audible beep. The unit is now activated.
Sensus Metering Systems-North America Inc. 2.2.2.3 CellNet Water MTU User’s Guide Operation Once the unit has been activated, it will read the meter and transmit Consumption data using the timing configured at the factory. Packets transmitted by each endpoint are uniquely identified by a 10 digit LAN Address. The 10 digit LAN Address of each endpoint can be found on the label applied to the endpoint enclosure, and can be queried through the programming interface.
Sensus Metering Systems-North America Inc. CellNet Water MTU User’s Guide adversely affect the battery life of the endpoint. 2.2.2.4 Diagnostics [Ref 2] describes the diagnostics that are available via the CellNet RFLAN1 Protocol. For details on diagnostics, please refer to [ref 2]. When an endpoint detects an error condition, these conditions are reported via diagnostic bits in the RF LAN1 Frames transmitted by the endpoint.
Sensus Metering Systems-North America Inc. CellNet Water MTU User’s Guide Units that are to be removed from the field must be deactivated. In order to swap out a meter, the unit must have the meter removed, be deactivated, have the new meter connected, and then be activated. In order to deactivate a unit, the following steps must be taken: • The endpoint must be disconnected from the meter • The endpoint must then be busted Busting an endpoint forces a read of the meter.
Sensus Metering Systems-North America Inc. CellNet Water MTU User’s Guide 2.2.
Sensus Metering Systems-North America Inc. 2.3 CellNet Water MTU User’s Guide Configuration This section will describe how the board is configured as shipped, as well as how it is configured in the field. 2.3.
Sensus Metering Systems-North America Inc. CellNet Water MTU User’s Guide 2.3.2 Supported Encoders This release of the CellNet Water MTU product supports 2-wire Sensus Registers only. 2.3.3 Re-Configuring In the Field Sensus Metering Systems builds endpoints to support re-configuration in the field. However, this release of the CellNet Water MTU product does not support re-configuration. The programming port is currently only available to Sensus Engineers for obtaining engineering telemetry.
