Optical fiber installation in the ground
FTTH >> Technology >> Network deployment
When one is new facilities or rehabilitated more the excavations are used, or canalized or directly the cable under the ground. The aerial installation for the infrastructures is left whose conductions already are saturated and would be expensive its extension.
For the direct excavation, where the fiber cable goes without protection, and therefore in direct bonding with the ground, it is necessary the use of heavy machinery. The cable is introduced in the land having created a ditch (that is to be covered later) or simultaneously excavating and inserting the cable with specialized machines. It is the most expensive system initially of the three.
The canalized facilities require the previous positioning of a conduit that will lead one or several cables between two joining points. The joining points are manipulation registries that can be as great as for the entrance of a as single person or as a hand. This type of installation inside requires a device of introduction del cable of the canalization (also it can be manual), an instrument of tension measurement and a compatible lubricant with the optical fiber that reduces the friction in the canal. The canalized networks usually settle like forecast to future requirements of capacities, since, are easily expandable.
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