Introduction:

In this article we will talk about the 100GBASE-KR4 Ethernet standard and what are the difference between 100GBASE-KR4 and 100GBASE-SR10, All this just to give you more understanding about 100GBASE-KR4 technology. 

What is the 100GBASE-KR4 technology?

100GBASE-KR4 solution has IEEE specification, there are actually two different 100 Gb backplane definitions – one that uses NRZ encoding, which from an encoding standpoint is actually very similar to what we’re used to in 10G and 40G; and then there’s PAM4 encoding, which is a brand new encoding scheme for backplane Ethernet. Because it’s a different encoding scheme we felt that the silicon.

What are the Difference Between 100GBASE-KR4 and 100GBASE-SR10?

The 100GBASE-KR4 CFP module can support link lengths up to 40 kilometers on standard duplex single-mode fiber (SMF, G.652) terminated with SC/PC optical connectors. 100 Gigabit Ethernet signal is carried over four wavelengths. Multiplexing and demultiplexing of the four wavelengths are managed within the device. The 100GBASE-KR4 CFP module meets the IEEE 802.3ba requirements for 100GBASE-KR4 performance and also supports Digital Optical Monitoring (DOM) of the transmit-and-receive optical signal levels.

The 100GBASE-SR10 CFP module supports link lengths of 100 meters and 150 meters respectively on laser-optimized OM3 and OM4 multifiber cables. It primarily enables high-bandwidth 100-gigabit links over 24-fiber ribbon cables terminated with MPO/MTP-24 connectors. It can also be used in 10 x 10 Gigabit Ethernet mode along with ribbon to duplex fiber breakout cables for connectivity to ten 10GBASE-SR optical interfaces. Maximum channel insertion loss allowed is respectively 1.9 dB over 100m of OM3 cable or 1.5 dB over 150m of OM4 cable.