An electronically-managed optical fiber connection system is provided. A smart ferrule carrier comprises a plurality of ferrule bays configured to accept a tagged optical ferrule assembly. Each tagged optical ferrule assembly comprises an identification (ID) tag storing identification information for the optical ferrule assembly. A smart carrier board comprising a carrier controller is configured to read and/or write information to/from the ID tag of each tagged optical ferrule assembly. A smart carrier adapter is configured to accept a plurality of smart ferrule carriers, the smart carrier adapter including an adapter controller system. The adapter controller system includes an adapter controller configured to communicate with the carrier controller of each installed smart ferrule carrier and a system controller.

A loop back connector and methods for testing lines in a fiber optic network are disclosed. The loop back connector includes a ferrule having an interface side constructed for optical connection to a multifiber optical cable. The loop back connector also includes first and second optical loop back paths, each having first and second terminal ends positioned at the interface side. The terminal ends of each loop back path are adapted to be aligned to fibers in the multifiber optical cable. The method includes injecting a signal on a first optical path at a first location, looping back the signal at a second location onto a second optical path, and receiving the signal on the second optical path at the first location.

A method and system for reading a marker embedded in a fiber optic connector, and a connector configured to be read by the method and system. The connector includes an outer assembly and a marker that is overlaid by the outer assembly. To read the marker, the connector is illuminated with an illuminating light in a first spectral band, and an image is formed using the light within the first spectral band that is reflected from the fiber optic connector. The reflected light includes at least a portion of the illuminating light which was transmitted through the outer assembly and reflected back toward a reader by the marker. Data contained in the marker is then extracted from the image.

Systems and methods for physical cable route tracing are provided. In one embodiment, a cable comprises: one or more of either electrical conductors or optical fibers; a cable sheath around the one or more of either electrical conductors or optical fibers; and a pattern of cable tracing facilitation markings located on an exterior of the cable sheath; wherein the cable tracing facilitation markings comprise either: a visually varying pattern that gradually changes along a length of the cable sheath; or a series of coded markings of an ordered sequence pattern.

An apparatus including a first light pipe, a second light pipe and a tracing fiber. The first light pipe may comprise slot features and may be configured to receive light. The second light pipe may comprise the slot features and may be configured to emit the light. The tracing fiber may be configured to propagate the light from the first light pipe to the second light pipe. The first light pipe may focus the light by refraction into the tracing fiber. The slot features of the second light pipe may be configured to scatter the light to provide omnidirectional emission of the light. The tracing fiber may be bundled with one or more data carrying lines in a cable. Each of the data carrying lines may be configured to enable a communication of data. The tracing fiber may be configured to propagate the light without interrupting the communication of data.

A reversible fiber optic cassette for mounting with other like cassettes in a rack comprising a cassette receiving tray, the tray comprising a plurality of cassette engaging features on an upper surface is disclosed. The cassette comprises N duplex pairs of optic fiber receptacles arranged along a front thereof, a multifiber receptacle on a back thereof and 2*N optic fiber segments each between a respective one of the optic fiber receptacles and the multifiber receptacle, N discrete port identifiers on a first surface thereof and N discrete port identifiers on a second surface opposite the first surface. The first set of N identifiers is the same as the second set of N identifiers and for M between 1 to N, an M.sup.th port identifier of the first set and an (N-M+1).sup.th port identifier of the second set is adjacent an M.sup.th one of the duplex pairs of optic fiber receptacles.

A loop back connector and methods for testing lines in a fiber optic network are disclosed. The loop back connector includes a ferrule having an interface side constructed for optical connection to a multifiber optical cable. The loop back connector also includes first and second optical loop back paths, each having first and second terminal ends positioned at the interface side. The terminal ends of each loop back path are adapted to be aligned to fibers in the multifiber optical cable. The method includes injecting a signal on a first optical path at a first location, looping back the signal at a second location onto a second optical path, and receiving the signal on the second optical path at the first location.

To provide a connector plug that makes it possible to facilitate a plurality of persons' confirmation of a connector plug before its removal or after its insertion and to prevent erroneous work. The connector plug according to the present invention has a discoloration member mounted on a gripping portion for pinching during work. The color of the discoloration member changes due to heat of a worker's fingertips when the worker pinches the connector plug or pressure when the worker pinches the connector plug. The discoloration member is discolored by one worker pinching the connector plug. Another worker looks at the discolored discoloration member, and then is able to confirm whether the connector plug is a work target.

A patch cord identification inspection system includes a patch cord having first and second connectors, which are coupled to both end parts of an optical fiber cable and are detachably connected to predetermined electronic devices and in which first and second light-emitting diode (LED) modules are respectively embedded. The patch cord identification inspection system includes an identification inspector selectively slidably and detachably coupled to any one of the first and second connectors and configured to identify and inspect electrical connection states of the first and second connectors on the basis of lighting states of the first and second LED modules.

Disclosed here are embodiments of an optical fiber ribbon. In the optical fiber ribbon, a plurality of optical fibers are arranged in a row. The optical fibers are embedded in a primary matrix. The primary matrix comprises a base resin and an opacifier pigment. A secondary matrix is disposed around the primary matrix, and a layer of printing is disposed between the primary matrix and the secondary matrix. The secondary matrix has a contrast ratio of from 0.2 to 0.9 as measured according to ASTM D2805. Embodiments of a method of preparing an optical fiber ribbon are also disclosed in which optical fibers are arranged in a row and embedded in a primary matrix. Characteristics of the optical fibers is printed onto the primary matrix, and the primary matrix is coated with a secondary matrix having a contrast ratio of from 0.2 to 0.9 according to ASTM D2805.