Distribution panels, optical boxes

Optical fiber panels (ODF) are used for crossing optical fibers. Most types of cables, where fibers go in a common tube can not be terminated with connectors, because there is no basis in the form of an individual sheath of each fiber, on which you can fix the connector. That is why ODF are used, where pigtails are welded to the cleaned fibers, the welding place is protected by a sleeve, and the sleeves themselves are placed in special splice cassettes. Distribution panels differ in the type of mounting: in a rack or on the wall. ODF installed in the rack have a fairly high density of ports and support virtually all existing types of adapters. Conditionally they are divided by design and height. The panel design can be: sliding, rotatable-sliding and with removable top cover. This parameter affects the convenience of working with ODF, as easy access to welded connections simplifies the switching process.  The rack height of the distribution panels is measured in "units" (U). The higher the unit value, the greater the maximum optical capacity of the distribution panel. Wall-mounted ODFs are used in areas where it is not possible to install a telecommunication rack or cabinet. The variety of wall-mounted panels allows you to choose the most suitable option for a particular task.  A variety of optical boxes are also subscriber junction boxes, also called "optical sockets". There is also a separate type of ODF that is designed for use outside buildings, the so-called external climate boxes. Such boxes serve both for crossing optical fibers, and perform the functions of an optical coupling to protect the fiber connection point. Out-of-building optical boxes are most often used to realize the concept of FTTx network construction with the use of AON and PON technologies.