Rechercher dans ce blog

dimanche 21 décembre 2014

Overview Of DIN Rail Fiber Optic Patch Panel

By Lucia Weeks


A patchbay is, in many areas of wired data transmission (eg audio, telephone and video technology or computer networks) a technical device to simplify wiring, where usually several devices are connected, their compounds comfortable using short patch cable may be prepared and changed with attached to front bushings (DIN Rail Fiber Optic Patch Panel).

The main purpose of wiring is disconnected to allow the realization of different connections between the signals in a simple and cheap, avoiding the use of more complex tools switching. An early form of patchbay is with the manual telephone exchanges, in which the connections were made manually. With time, this use has been abandoned in favor ofutomatic switching systems.

The use of patchbay is rather large in entertainment industry and more particularly in television, and is also widely used in computer networks. Disconnection video signals of mobile direction. Note on left a series of panels not normalized with fittings inserted and, in blue, a rope. Each type wiring is suitable in principle to use of patchbay. Depending on type signal, changes the type cable that carries it and the type connector used. Common examples of patchbay are: Video signals over coaxial cable 75. There are different specifications depending on type video.

This type patchbays is also used for digital audio interface with AES / EBU, in variant AES3id; the connector used on back of a patchbay is the BNC type, while the strings have a special coaxial connector. Analog audio signals on a balanced pair or digital AES / EBU. In this case, terminals of disconnector are usually to be welded directly; the strings are stereo jack or fittings multipolar different depending on manufacturer.

This is useful, for example when the microphone input of a mixer, where, according to microphone often a preamplifier (integrated in mixer or external), an equalizer and a compressor in a row are connected. Each trail with each other via a socket pair distribution box is completed, the output of previous device is usually above, the input of next down.

The modular structure allows to compose patchbay capable of routing connections of different types of signals on same panel, saving space if the number of signals is limited. Typically, in a panel on top rack unit can accommodate 24/26 modules. You can make a panel with, for example, video connections 8, 10 and 6 serial audio.

Naturally it is not possible to cross between them two types of different signals. As a general rule, although it is not a fixed rule, the top line of panel receives incoming connections to patchbay (and then the outputs of machines), while the lower sends outgoing connections (and therefore to inputs machines ).

Depending on use, there are three types of disconnectors, whose normalization of signals may be absent or complete, or it may be disconnectors. The normalization indicates the way in which the elements of single module are wired internally. In a form without normalization, a rope is required for the transit of signal (or a dedicated short cable to U), while in a normalized form the input signal to patch panel is always connected to corresponding output.




About the Author:



2 commentaires:

  1. Thanks for your efforts in sharing this post with us. This was really awesome. kindly keep continuing the great work. fiber optic distribution box

    RépondreSupprimer
  2. Great Blog, Thank you so much for sharing, there is so much reality written in this content and everything is something which is very hard to be argued. Top notch blog having excellent content. fiber optic distribution box

    RépondreSupprimer

Blog Widget by LinkWithin