Allgemeines

The history of data technology is inextricably linked to developments in cabling and connection technology. High-performance data networks (local area networks, or LANs for short) are not possible without appropriate cables and lines and without high-quality connection components.

In view of high-speed networks such as 40 Gigabit and 100 Gigabit Ethernet, it is hard to imagine today that data networks have their origins in telephone cabling. Telegärtner played a key role in pioneering developments at an early stage.

The Ethernet variant 10Base-2 used coaxial cables. In order to avoid having to shut down all end devices every time for changes and extensions, Telegärtner developed the EAD, an uninterruptible connection box that allowed end devices to be plugged in or unplugged while the data network was in operation. Soon afterwards, the shielded version scEAD ("screened EAD") came onto the market, which was used until the 21st century.

Ethernet is constantly evolving, enabling ever higher data rates. As of 2019, 10 Gbit/s over up to 100 meters and 25/40 Gbit/s over up to 30 meters are possible via copper data cables. Approaches to transmitting 25 Gigabit Ethernet over copper data lines over up to 50 meters are very promising.