1000M OTDR Launch Cable Box SM With Optional Fiber Optic Connectors SC FC LC ST,OTDR Launch Cable Box SM With Optional Fiber Optic Connectors SC FC LC ST 1000M, FC/APC on O/P lead, Fiber & Connector Characteristics, Fiber Types: G652D,Designed to aid in the testing of fiber optic cable when using an OTDR, For Example: OTDR-SC-FCA-SM-1KM;1KM SM ,SC on I/P lead.Connectors SC FC LC ST 1000M OTDR Launch Cable Box SM With Optional Fiber Optic.