This infrastructure consists of a passive part identified by cables, user sockets, rack cabinets, connectors and patch panels (patch panels) for copper cables and optical drawers for fiber cables, which on the active part , identified with routers, switches, firewalls and access point.
The history of connections between computer networks arises from proprietary systems, where the main brands have created their own networks, with apoosite protocols, but the poor integration between the various manufacturers has led to the need to create standards for the design and construction of the equipment. and installation.
Wired networks are widespread in all sectors, from commercial and industrial to residential, where they are necessary for the integration of services dedicated to home automation, video surveillance, etc.
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