About: http://webisa.webdatacommons.org/128515197

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	Here, when there is a fault in the working optical fibers, optical signals are inputted/outputted thereto/therefrom through the On-Off optical switch and the protection optical fiber.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com