Jeirdus 6KM G652D Fiber Optic OTDR Launch Cable 9/125 Singlemode Single Bare Fiber 1310/1550 Measuring Test Optical Jumper .Application: OTDR lanuch cable are designed to be used in conjunction with an OTDR to measure complete link loss of a fiber. They are also known as pluse suppressor cables, lanuch cords, launch leads, receive cables or fiber rings. An OTDR launch cable, which connects the OTDR to the link-under-test, discloses the insertion loss and reflectance of the near-end connection. A fiber ring serves as both a launch cable and a receive cable. Connectors:as usual, this cable will come without a connetor on both terminals. While we can added connectores for free, Please leave a message when you place a order.Connector such as LC,SC,FC,ST etc. Polish method such as UPC,PC,APC for your options.