Table of Contents
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About the A725 addSDI___________________________________________________3
Conventions _____________________________________________________________4
Opening the packages ____________________________________________________5
Installing the RTU ________________________________________________________6
Field Installation_______________________________________________________7
More about the LED tool _______________________________________________8
Configuring an addSDI RTU in the addVANTAGE software__________________9
Maintaining and servicing the RTU__________________________________________9
The RTU battery _______________________________________________________9
Changing the battery ________________________________________________ 10
Understanding connectors_______________________________________________ 14
The POWER Connector ______________________________________________ 14
The SDI Connector __________________________________________________ 15
SDI-12 Sensor Connections ______________________________________________ 16
Self powered Sensor _________________________________________________ 17
Multiple Sensors connected to the SDI-12 Bus __________________________ 18
Communicating with the RTU ____________________________________________ 18
Serial communication protocol ___________________________________________ 19
General format of a command ________________________________________ 19
General format of an answer __________________________________________ 20
Using terminal commands _______________________________________________ 20
Returned errors list _____________________________________________________ 37
Command line interpreter ____________________________________________ 37
Device descriptors and storage handler ________________________________ 37
Real time clock ______________________________________________________ 37
Radio interface ______________________________________________________ 37
Specifications _________________________________________________________ 39
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