Infrared Remote Over Video Fiber (IROVF) transports any combination of uncompressed/unprocessed/native full quality, full bandwidth, zero latency, and mixed analog and digital signals including audio, video, data, Ethernet, USB, S/PDIF, and TOSLINK, over a fiber optic based cable added with integrated infrared remote control capabilities to remote control uni/bi-directional audio video and IR devices remotely from either sides of the cable Without requiring additional processing adapters, nor processing or reducing the specs of the other carried audio-video data signals which stays original uncompressed, untouched, and unprocessed for a perfect as-is full original functionality and quality.

This application provides a light source module, an optical communications board, and an optical communications system. The light source module includes a light source emission module configured to emit a laser and a housing configured to protect the light source emission module. The light source emission module is connected to a first connector and a second connector, the first connector is an optical signal connector, and the second connector is an electrical signal connector. When the first connector and the second connector are specifically disposed, the first connector and the second connector are located on a same side of the housing. In addition, both the first connector and the second connector are pluggable connectors. When being connected to a backplane, the first connector and the second connector may be separately connected to a board body in a pluggable manner.

A connector assembly is provided and includes a shielding cage, a receptacle connector and a light guiding member. The shielding cage has a plurality of walls, a receiving space defined together by the plurality of walls, a front end opening communicated to the receiving space and an aperture communicated to the receiving space. The receptacle connector is received in a rear segment of the receiving space of the shielding cage. The light guiding member has at least two light guiding pipes, each light guiding pipe has a first segment positioned to the front and a second segment positioned to the rear. The first segments of the two light guiding pipes are positioned outside the shielding cage and the second segments of the two light guiding pipes pass through the aperture and enter into the rear segment of the receiving space of the shielding cage.

An electrical communication system includes a plurality of cable connectors that are configured to mate with the same electrical connector or electrical connectors having substantially identical mating interfaces. The cable connectors can be configured as an electrical cable connector, an optical cable connector, and a hybrid cable connector that includes both optical and electrical communication.

A connection system may include fiber optic connectors and an optical receptacle into which the connectors are plugged. The fiber optic connectors are constructed so that the width of the connectors is small. Eight fiber optic connectors can be received in an opening of a QSFP style transceiver.

Methods and apparatus for emulating optical modules. A method includes receiving, from an optical module emulator, a first serial data stream having the plurality of upstream signals multiplexed into a plurality of bits; wherein the first data stream includes a plurality of frames, each frame having a multi-frame alignment bit; and de-multiplexing the plurality of upstream signals based on each multi-frame alignment bit within each respective frame. A method includes receiving, from an emulator controller, a second serial data stream having a plurality of downstream signals multiplexed into a plurality of bits; wherein the second serial data stream includes a plurality of frames, each frame having a multi-frame alignment bit; and de-multiplexing the plurality of downstream signals based on each multi-frame alignment bit within each respective frame.

An incorrect insertion and removal prevention system that can prevent an operator from incorrectly selecting a port to be operated without sacrificing the port mounting density is described. An optical transmission device 100 of the incorrect insertion and removal prevention system includes a plurality of ports 101 for transmitting and receiving an external signal, a touch sensor 102 installed in each of the ports 101 to detect a contact of the human body, a control unit 110 for causing a display unit 130 to display information about the port 101 corresponding to the touch sensor 102 detecting the contact of the human body, a storage unit 120 for storing information for distinguishing each port 101, and the display unit 130 for displaying the information for distinguishing each port 101.

An optical cable laying construction set (X) that includes an optical cable (C1) and plugs (P1 and P2). The optical cable (C1) includes an optical fiber which is a refractive index distribution-type plastic optical fiber. The plug (P1) includes a connecting portion connectable to the optical fiber, and an electric connector connectable to an external device, and has a configuration for converting an electric signal into an optical signal. The plug (P2) includes a connecting portion connectable to the optical fiber, and an electric connector connectable to an external device, and has a configuration for converting an optical signal to an electric signal. In an optical cable laying construction method of the present invention, laying construction of the optical cable on site is carried out using the optical cable laying construction set (X).

A connector (7) includes: a first connector part (10) having a first module side connection part connected to one end of an OSFP module in the front (F), having a first substrate side connection part connected to a substrate, and installed on the substrate; a second connector part (20) provided at a position such that the first module side connection part is interposed between the substrate and the second connector part (20), having a second module side connection part connected to one end of an OSFP module at the front (F), having a second substrate side connection part connected to the substrate, and stacked on the first connector part (10); and an intermediate part (30) provided between the first connector part (10) and the second connector part (20), and a cooling flow path in which air flows from the front (F) side toward the rear (R) side of the connector (7) is formed in the intermediate part (30).

An optical module includes a shell, a circuit board, a display light and a light guide pipe. The circuit board is disposed in the shell. The display light is disposed on the circuit board, and is configured to emit light of different colors. The light guide pipe is disposed between the shell and the circuit board. An input end of the light guide pipe is arranged to correspond to the display light, an output end of the light guide pipe is configured to transmit light emitted by the display light to an outside of the optical module. The shell includes a groove. The output end of the light guide pipe is fixed in the groove, so that the shell is fixed with the light guide pipe.