About: http://webisa.webdatacommons.org/278356647

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	PON couplers may have a second port on the upstream side just for testing or unused downstream connectors may be useful for testing, especially with OTDRs.
http://www.w3.org/ns/prov#wasQuotedFrom	foaguide.org