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Glossary
Ohm
Common unit of measurement for electrical resistance.
P
PF
Abbreviation for Power Factor. Used to describe the quality of AC current in percentage.
PV
Abbreviation for Photovoltaic. Refers to the solar module that generates power from
sunlight.
PVM
Pulse Width Modulation. Is the most effective means to achieve constant voltage battery
charging by switching the solar system controller's power devices.
R
RSSI
Strength of the radio signal when it is received.
S
SIM
System Information Manager.
Sine Wave
Refers to the wave-form of AC power, measured in hertz (Hz).
SOC
State of Charge.
SOV
Abbreviation for Silicon Oxide Varistor. Used to protect electrical equipment from surges.
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R900 Gateway Installation and Maintenance Guide
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