First, eight bits of data are expanded into four three-bit symbols through a non-trivial scrambling procedure based on a linear feedback shift register ; this is similar to what is done in BASE-T2but uses different parameters. IPXE - open source boot firmware [appnote:hardware_drivers] The three-bit symbols are then mapped to voltage levels which vary continuously during transmission. An example mapping is as follows: Where copper fits Where are shops going to deploy gigabit and faster speeds? The most obvious choice[…]
