Optical equipment terminology

IDF: Intermediate Distribution Frame, sub-patch panel MDF: Main Distribution Frame, the main distribution frame.
OC: (Optical Carrier, optical carrier) is defined in the SONET specification transfer speed. OC defines transmission speed of optical devices, STS defines the transmission speed of electrical equipment.
SC: Subscriber Connector (Optical Fiber Connector) User connector (fiber connector).
ONENT: SONET (Synchronous Optical NETwork, synchronous optical network) is a high-speed data communication optical fiber transmission system. SONET communications by telephone companies and utility companies to deploy, its speed from 51Mb / s up to several gigabytes per second. SONET is a way to provide advanced network management and optical interface standards for smart system, which uses self-healing ring structure, if one line fails, it can be diverted transmission. SONET lines are widely used in low-speed T1 and T3 lines together. SONET broadband ISDN (B -ISDN) standard for the European standard is SDH.SONET corresponding time-division multiplexing (TDM) technology simultaneously transmit multiple data streams.
ST: Straight Tip, straight-through fiber-optic connectors. TP: Tunst Pair, twisted pair.
Cable Terminal Box: Cable terminal is mainly used for fixed, cable and over fiber pigtail of welding and resettlement and protection.
Fiber boxes: the use of optical technology used to transmit digital and similar voice, video and data signals. Fiber Box can be mounted directly or table, especially suitable for high-speed optical fiber transmission.
Fiber panel: optical fiber panel has a light transmission efficiency, inter-stage coupling loss, pass as clear and true, that has zero thickness in the optical characteristics of most typical application is the low light level image intensifier as the optical input and output window , to improve the quality of imaging devices play an important role in widely used in a variety of cathode ray tubes, camera tubes, CCD coupling need to send images and other instruments and devices.
Optical fiber coupler: (Coupler) also known as splitter (Splitter), is the light signal from a carve up of fiber optical components, optical passive components are areas in telecommunications networks, cable networks, user-loop system regional network will be applied to, and breakdown of passive fiber optic connector components used in the largest item of fiber couplers can be divided into standard coupler (double branch, unit 1 × 2, which will power the light signal into two), star / tree coupler, and wavelength division multiplexer (WDM, if the wavelength is a high-density separation, that is, a narrow wavelength spacing is part of DWDM), production methods, there are sintered (Fuse), micro-optical (Micro Optics) , optical waveguide type (Wave Guide) three, and sintering method produced the majority (about 90%).
Fiber distribution frame (cabinet): has the following features: a fixed cable, protection and grounding; fiber core and pigtail splicing; optical path of the deployment and to provide measurement port; redundant fiber and pigtail of storage management.
Optical Fiber Distribution Box: particularly suitable for optical fiber access network termination point, a fiber optic cable wiring and welding capabilities, flexible core cable can transfer lines and storage.
Jumper: that without a cable connector or cable to the unit, used in the patch panel on the transfer of various link
Thread box: mainly used in aerial cable, buried cable, fiber optic cable through tube wells and differences joints, and joints play a protective role.