About the Author

George Zimmerman

Dr. George Zimmerman is an independent consultant, specializing in physical layer communications technology. Over the past 20+ years, he has been at the forefront in the development of wired communications technologies, including line-powered DSL technologies in the late 1990s and since initiating the IEEE 802.3an 10GBASE-T standard in 2002, has been at the forefront of all new BASE-T Ethernet technologies, including 10G, 5G and 2.5GBASE-T (four-pair) Ethernet, 100 and 1000BASE-T1 single-pair Ethernets, IEEE 802.3az Energy Efficient Ethernet, IEEE 802.3at and 802.3bt PoE+ and 4-pair PoE, and powering for single-pair Ethernet(PoDL or IEEE 802.3bu). He is currently Chair of the IEEE P802.3cg 10Mb/s Single Pair Ethernet Task Force, and was Chief Editor for both the IEEE 802.3bz 2.5G/5GBASE-T and IEEE 802.3bq 25G/40GBASE-T standards. He is an active member of TIA TR42, focusing on copper cabling applications, including multigigabit transmission and powering. George serves as Technical Committee Chair for the Ethernet Alliance, and on the board of the NBASE-T Alliance. He holds more than a dozen patents related to BASE-T Ethernet and Energy-efficient Ethernet technology, a Ph.D. in Electrical Engineering from Caltech, and an undergraduate degree from Stanford University.