About: http://webisa.webdatacommons.org/432459389

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Optical isolation means may comprise a light source, such as a light emitting diode, and a light sensitive receiver optically coupled to and electrically isolated from the light source.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com