C <tt>++</tt> LpGBT control library for Accelerator Controls at CERN

Abstract Reliable communication and control of distributed electronics is essential for safe and efficient accelerator operations at CERN. This work presents the first application of new C ++ library designed to manage Beam Loss Monitoring (BLM) acquisition electronics using Low-Power Gigabit Transceivers (LpGBT). This library enables real-time communication between tunnel-based and surface-level processing subsystems, delivering high performance and robust reliability. It supports redundant optical links, custom medium access, internal and external LpGBT control, and I 2 C links. Although LpGBT is widely deployed in LHC experiments, this marks the first integration in CERN's Accelerator Technologies sector, offering enhanced control capabilities via radiation-tolerant, bidirectional communication.