Basic Knowledge

Data Nework Technology


The history of data communications is closely linked to the developments in cabling and connecting hardware. High performance data networks and local area networks (LANs) cannot perform well without appropriate cables and excellent connectors.
When we take a look at high-speed data networks like Gigabit and 10 Gigabit Ethernet, it’s hard to imagine that data networks descended from telephone networks. Telegärtner has set quite some trends from the early beginnings.
The Ethernet version 10Base-2 was running over coaxial cable. With Telegärtner’s uninterruptable EAD outlets, computers could be added or removed while the network is running. Soon, the screened version scEAD followed, and even 2010 there are still some coaxial networks with EAD/scEAD outlets in use.

Evolution of LAN technologies

Ethernet has become the dominant technology for local area networks (LANs). Most common are
Fast Ethernet with 100 Mbps and Gigabit Ethernet with 1 Gbps. For high speed networks, 10 Gigabit Ethernet offers 10 Gbps, and 40 and 100 Gigabit Ethernet will soon offer even higher data rates.