Signal Encoding

Signal Encoding

A number of ways are defined for representing a bit stream with an electrical signal. In the 10 Mbps Ethernet section of the Compendium there is a description of Manchester encoding. In 100 Mbps Ethernet there are several different encoding schemes that are available. The one that is used depends on the specific implementation being engineered. These are not interchangeable standards.

Encoding Standards in the Fast Ethernet Environment

• MLT-3 MultiLevel Transition
• NRZI Non-Return to Zero, Inverted
• T4 Multiplexing
• 4B/5B And 8B/6T Code Representations