Mueller Cellular Node Installation
Manual
Mueller Systems
–
Proprietary
Page 4
1. Introduction
The Mueller Systems Mueller Cellular Node is intended for indoor and outdoor use
as an unattended Automatic Metering Infrastructure (AMI) and control device. The
Mueller Cellular Node is fully self-contained and battery powered device with no user
accessible controls.
The Mueller Cellular Node
for Residential Metering (“
Mueller
Cellular Node
”) is a device that incorporates a microcontroller,
a
LTE MODEM , and battery (DC power supply) for the purpose of
logging and forwarding water meter readings to the Mueller
Systems servers. The Mueller Cellular Node comprises 2
primary communication and processing modules, the SIERRA
HL7800 LTE MODEM, and the Silicon Labs BlueGecko
EFR32BG12. The Mueller Cellular Node provides a direct
connection to all Mueller water meters equipped with a
Mueller encoder register. The primary function of the Mueller
Cellular Node is to provide full, two way reliable and secure data
communications via the existing cellular networks. The Mueller Cellular Node will also
autonomously send messages to the server when various events or alert conditions are
detected, such as potential leak or theft of service.
Meter reading interval is remotely settable. Information retrieved from a water meter is
stored temporarily within the Mueller Cellular Node unit's internal memory. As a default,
the Mueller Cellular Node will transmit hourly meter data at a predetermined time once
per day, via the cellular network to the Sentryx system host server for analysis and
storage. On demand reads to the Mueller Cellular Node can be requested at any point in
time.
The contents of this installation manual are intended for technically qualified personnel
of water and energy distribution utilities who have been trained and are technically
qualified in local safety procedures for installation of the device.
2. Construction
The Mueller Cellular Node product consists of a printed circuit board which is encapsulated
to provide complete protection against shock and water intrusion. The enclosure is made of
UV stable, high- density thermoplastic and is completely waterproof. The UV stable,
thermoplastic housing design provides a compact, waterproof enclosure that is lightweight
and easy to handle and install. The Mueller Cellular Node has integral mounting brackets
for both pit and wall installations. One D size lithium battery provides plenty of power
for reading the register and sending RF data.
•
To protect the AMI device electronics from moisture ingress the design
incorporates the use of thermoplastic injection molded housings, rubber seals,
a potting compound that completely incases the internal electronics and a
coated circuit board which combine to provide a formidable barrier of
protection against water intrusion.
•
Internal wire strain relief has been built into the housing to protect the wire
connections against damage. Please note that meters or registers should never
be carried while supported only by the Mueller Cellular Node transmitter or wiring.
