64b/Differential signaling

line-coded signal can directly be put on a transmission line, in the form of variations of the voltage or current (often using differential signaling). the

Transition Minimized Differential Signaling, which also expands 8 bits to 10 bits, but it uses a completely different method to do so. 64b/66b encoding, introduced

different signaling to previous modes. Every active component needs to explicitly support this new signaling, but it stays within all signal quality requirements

use an SFI interface. XFI and SFI use a single lane data channel and the 64b/66b encoding specified in IEEE 802.3 Clause 49. SFP+ modules can further

serializer-plus-64b/66b encoder and deserializer-plus-decoder blocks are defined in the 10 Gigabit Ethernet specification. The transmit side comprises a 64b/66b encoder