The State of T1L in Building Automation - May 2026
In this video, Matt covers the May 2026 state of T1L (Single Pair Ethernet), following up on the channel’s earlier T1L Overview video from a few years ago. He reviews the fundamentals of 10BASE-T1L — 10 megabit Ethernet communication over a single twisted pair at distances up to 1,000 meters — and walks through the growing media converter and switch options available from Honeywell, Loytec, Phoenix Contact, iSMA, and Contemporary Controls. On the controller side, Matt covers the T1L variants of the Honeywell Optimizer Unitary and Optimizer VAV controllers, Phoenix Contact’s use of T1L for IO applications, and iSMA’s upcoming T1L VAV controller. As T1L adoption continues to grow in the building automation space, understanding the available infrastructure and controller options is becoming increasingly important for contractors, integrators, and BAS professionals. #T1L #SinglePairEthernet #BuildingAutomation #BAS #HVACControls #Honeywell #PhoenixContact #iSMA #Loytec #ContemporaryControls #10BASET1L #SmartBuildings
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