Monday 17 February 2020

The connectors can be installed directly on most types of cables

The connectors can be installed directly on most types of cables, including simplex cables of tight structure, duplex cables ( zip cord ) and breakout cables, in which the aramid resistance elements are crimp or glued to the body of the connector to create a strong connector. The connectors can be attached to the 900-micron fibers of tight structure within the distribution cables, but the termination is not as resistant as that of the jacket cables, so they must be installed in connection panels or boxes for protection.  The termination of the 250-micron fibers of tight structure in loose structure cables can be complicated unless they have a reinforcement called a kit to protect the termination of the fiber ( breakout kit ) or bifurcation kits ( furcation kits ), where each fiber It is dressed by a larger plastic tube. In general, the fiber termination type and loose cable type ribbon ( ribbon ) is made with a connectorized fiber optic cable ( pigtail ).

The cables can be laid with the connectors already installed if and only if you can deal with two issues. First, the length of the cable must be exact. If it is too short, you should lay another longer cable (it is not profitable to make splices). If it is too long, you will have wasted money and will have to store the excess cable. Second, the connectors must be protected. Some cable and connector manufacturers offer protective covers for the connectors, but you must still be very careful when laying the cables.   You should consider placing the terminations at one end and pulling another end without terminations so as not to put the connectors at risk. Now there is a growing trend: install previously terminated systems with the MTP 12 multifiber connector; It is a very small connector, not much larger than an ST or SC connector, but ends up to 12 fibers. Manufacturers sell multifiber cables that already have MTP connectors installed that connect to the pre-terminated connection panels with ST or SC connectors.   
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Terminations for multimode fiber
For multimode fibers, there are several types of terminations available. Each version has its advantages and disadvantages, so learning more about how each one works will help you decide which one to use.

Terminations for single-mode fiber
Single-mode fiber requires different connectors and polishing techniques, which are best performed within a factory. As a consequence, the termination of the single-mode fiber is done by connecting it
with a factory-assembled pigtail fiber cable . The termination of the single-mode fiber requires special connectors, with much more splint tolerance, especially the groove to hold the fiber. To polish it,  special granulated sandpaper with diamond particles is required, it must be done on a flat pad with the polishing mixture to achieve a low reflectance.   If you know how to do it, you can place the single-mode connectors in the field. But there will be greater loss and greater reflectance.



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