Introduction and Overview
1-3
ECHO
Monitor Mounted in Manhole
Microprocessor Unit (MPU)
The Microprocessor Unit (MPU) is the source of all monitor activity and is responsible for all of the
monitor’s high-level functions, including:
•
Maintaining the monitor time and date
•
Measuring the wireless signal strength
•
Performing power management
•
Transmitting the stored and current data to the user’s PC,
ADS FlowView
™
, a user’s email
address, or an FTP Server
•
Initiating event and alarm notification
The MPU allocates portions of memory to firmware (permanently stored software) and data storage. Light-
emitting diodes (LEDs) indicate the monitor communications and operational activity. The MPU also
includes the monitor clock, random access memory (RAM), and Flash memory. The monitor uses RAM
while taking readings and processing data. The RAM then downloads the data to Flash, or non-volatile
memory, which also stores the monitor firmware and configuration information. Flash ensures the monitor
maintains the data during battery pack replacement or power failure.
Communication Elements
The
ECHO
performs remote wireless communication over the cellular network. Two
ECHO
models
available utilize either 3G HSPA/HSPA+ (Evolved High-Speed Packet Access) or 4G LTE-M (Long Term
Evolution, category M1) through the modem in the monitor. Both
ECHO
models facilitate low-cost,
efficient TCP/IP communication in areas with wireless coverage.
Содержание ECHO 9000
Страница 13: ...Introduction and Overview 1 9 First Page of the ECHO IECEx Certificate of Conformity ...
Страница 16: ...1 12 ADS ECHO Manual Sample ECHO Declaration of Conformity Page 1 ...
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Страница 61: ...Hardware Installation 3 21 Manhole Depth and Physical Offset Measurements ...