Clase A.3 - Parte 2 - Dispositivos y Cables de Par Trenzado

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This section introduces the concept of network elements, focusing on twisted pair cables and their significance in networking.

Twisted Pair Cables

• Twisted pair cables are essential in networks, comprising insulated electrical conductors intertwined to eliminate external interference and facilitate differential signal transmission.

• These cables consist of categories such as 5, 5e, and 6, with Category 5 being the most commonly used for transmitting data at speeds ranging from 10 to 100 megabits per second.

• Category 6 cables include a plastic separator isolating each twisted pair and support connections up to 10 gigabits per second.

Cable Types and Coverings

• Different cable coverings like UTP, STP, FTP, and SFTP offer varying levels of protection suitable for internal or external installations.

• UTP (Unshielded Twisted Pair) cables are simple to manipulate and commonly used for network cabling.

• FTP (Foiled Twisted Pair) cables use global twisted conductors with a foil shield instead of aluminum shielding like STP.

• SFTP (Shielded Foiled Twisted Pair) cables have total shielding with aluminum covering and a metalized layer for enhanced protection.

Network Distances and Terminations

This part delves into maximum distances achievable without signal repeaters in networks along with terminologies related to cable specifications.

Network Distances

• Networks have maximum distance limits without signal repeaters based on a nomenclature indicating speed, transmission type, and distance capabilities.

• Nomenclature examples like "10BaseT" signify connections at specific speeds over certain distances using different cable types.

Cable Terminations

• RJ45 connectors serve as endpoints for twisted pair cables, facilitating connectivity within network infrastructures.