Optical Adapter

Main features

Optical fiber between the adapter by its internal opening casingconnected together, in order to ensure maximum connectivity between fiberjumpers. In order to fix on the various panels, also design a variety of finefixed flange.

Conversion adapter canconnect different types of fiber optic jumper interface, and provides aconnection between the APC end face with double or more can increase thedensity mounting.

Product type

FC / PC FC / UPC FC / APC SC / PC SC / UPC SC / APC ST / PC ST / UPC SC /APC, Fiber Adapter SC, FC, ST divided. SC on behalf of the Standard Connector.ST behalf Straight Tip. FC represents Fiber Connector. "/" The frontpart of said pigtail connector Model. "SC" connectors are standardsquare connector, the use of plastic, with a high temperature, not easilyoxidized advantages. Transmission equipment the sidelight interface generallywith SC connector.

"LC" connectors with SC connectors are similar in shape,compared with SC connector smaller.

"FC" connector metal connector, generally in the ODF side withmetal connector pluggable more often than plastic.

Varieties of connector signal is more, inaddition to the above-described three, MTRJ, ST, MU, the specific appearancesee following diagram

/ "Followed by the fiber optic connectors sectional process,grinding way.

The most widely used application "PC" in the telecom operator'sequipment, the connector section is flat.

"UPC" return loss is smaller than the "PC", generallyused for special needs equipment, is some foreign manufacturers, the ODFinternal patchcord with FC / UPC, mainly for improve the ODF device itselfindicators.

The following are some of the more common fiber connector:

(1) FCfiber optic connector

This connector was first developed by Japan's NTT. FC the FERRULECONNECTOR acronym external strengthen the metal sleeve and fastening methodsturnbuckle. The earliest, FC type connectors, using the ceramic pins butt end.Such connector structure is simple, easy to operate, easy to produce, but thefiber end face is more sensitive to dust, and prone to Fresnel reflection,improve return loss performance more difficult. Later, this type of connectorpins (PC) using the butt end faces spherical, while the external structure hasnot changed, the insertion loss and return loss performance has been greatlyimproved.

(2) SCfiber optic connector

This fiber optic connector developed by Japan's NTT. Its housing isrectangular, the structural dimensions of the pin and coupling sleeve used inthe FC-type identical. Which pins the end face of the use of a PC or APCPolishing; fastening method is the use of plug pin latch, without rotation.Such low price of connector unplugged and intervene loss fluctuations, highcompressive strength, high density mounting.

ST and SC interface is the two types of optical fiber connector, for theconnection of the 10BASE-F connector typically is the ST type, for 100BASE-FX,in most cases the connector SC type. ST connector ferrule SC connector core inthe joints inside

(3) Biconicalconnector

Themost representative type of fiber optic connectors products developed by BellLaboratories, USA, it was a the frustoconical cylinder plug and an internalplastic sleeve equipped with dual cone by two by precision molded endscouplingcomponents of the barrel.

(4) DIN47256fiber optic connector

LC-type connectors thefamous BELL (Bell), Institute of Research and Development, the latch mechanismis made easy to operate modular jack (RJ). Their use of the ordinary SC, FC,etc. half the size of the dimensions of the pin and the sleeve is, 1.25MM. Thiscan increase the density of the optical connector in the optical fiberdistribution frame. In terms of single-mode SFF LC type connectors actuallyhave occupied a dominant position in multimode applications is growing rapidly.

(7) MU fiber optic connector

MU (MINIATURE UNITCOUPLING) connectors are currently using the SC-type connector based, developedby NTT developed the world's smallest single-core optical fiber connector. Theconnectors 1.25MM diameter of the sleeve and the self-holding mechanism, andits advantage lies in its ability to achieve high-density mounting. Use of ofMU's L.25MM diameter casing, NTT has developed a series of MU connectors. Theyhave for a cable connected to the jack type connector (MU-A Series); backplaneconnector having a self-holding mechanism (MU-B series) and means forconnecting the LD / PD module and plugs simplified socket (MU-SR) and so on.With the rapid development of the fiber-optic network to the direction ofgreater bandwidth greater capacity and DWDM technology widely used MU connectordemand will grow rapidly.