What is OSP (Out Side Plant)?.
Outside Plant (OSP)
It takes a lot to connect dozens or millions of telephones together, including people and hardware. Hardware that stays in place (not trucks or screwdrivers) is called "plant." Some items of plant can be centralized and kept indoors in the telephone exchange. This is called Inside plant. Other items, such as wires to connect a phone to its exchange, or optical fibers to connect exchanges to each other, must be outdoors, hence is called Outside plant. Outside plant is made to be rugged.
The CATV industry also divides its fixed assets between Head end or inside plant, and outside plant. The electric power industry sometimes uses the term "outside plant" to refer to electric power distribution systems.
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