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This part of the network is situated at the carrier's central office, where the OLT directs and controls the whole fiber access network. It receives data from the ONT or ONU through two-way communication via optical fibers carrying data and voice traffic.
Optical Distribution Network (ODN) is composed of OLT and user equipment interconnected by optical fibers, splitters, and connectors, with downstream signal streams coming to the user interfaces and upstream signal streams for OLT processing purposes.
This device consists of splitting a single optical fiber into multiple parallel output fibers; it can be Fused Biconical Taper (FBT) or Planar Lightwave Circuit (PLC) splitter types. The optical splitters are thus among the most necessary ODN components, as they offer path to the signals for farther distribution or collection.
ONU, or Optical Network Unit, is the core device used in fiber-optic networks that translates the optical signals into electrical signals for end-user devices, which are typically internet, VoIP, and data connections located at the user's premises or in a nearby distribution point.
The ONT, like the ONU, also resides at the customer's site and has the same purpose. A crucial distinction is the place where signal conversion is done - either in the ONU located in a distribution box nearby or in the ONT connected directly in the customer's house.
Optical Connectors are important units for optical fibers; they clasp holders that bind the fibers together, securing a low loss, reliable connection. The mechanical design, spring element plunger, and body thread ensure the misalignment and inferior choice of the spring form are inconceivable.
In order to achieve optical connection, Optical Adapters are integrated, thereby allowing two optical connectors with different types to couple or the fiber alignment, which builds the basis of the connection between two different systems, to be easier, and the signal loss during underlying processes to be minimized.
A patch cord is an optical fiber of short length with optical connectors on both ends. It is used to connect fiber optic cables to devices, including router, switch, and ONU. They provide the networks with easy, flexible connections and ensure maintenance in fiber-optic networks.
Optical Pigtail Fiber is a short optical fiber with a connector at one end and a bare fiber at the other, which can be spliced directly into optical cables. They act as the binding entity between the users' devices and the basic fiber network, playing the role to form a dependable and safe access.
