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Appendix
Appendix
4
Explanation
RS485
(EIA485)
Differential voltage interface on which the genuine signal is transmitted on
one core and the negated (or negative) signal on the other core.
Separate grid
system
Energy supply equipment which is completely independent of an
interconnected grid.
String
Designates a group of electrical PV modules connected in series.
UL
Stands for Underwriters Laboratory, a non-profit organization that sets
standards for different product categories and tests products to make sure
they meet the standards.
VOC
Open Circuit Voltage
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