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Description
This work presents an experimental implementation of a clock and PPS distribution system using the uTCA backplane to achieve synchronized operation of multiple AMC modules. The point-to-multipoint lines of the backplane allow a single master AMC, connected to a White Rabbit (WR) network link, to share its reference clock and PPS signals with all slave AMCs in the chassis. This enables the generation of synchronous signals across all modules using only one fiber connection to the WR network, simplifying the hardware and improving scalability.
The study was carried out within the framework of a WR-based trigger generation system, demonstrating that the number of synchronized triggers can be increased without adding new WR links. Jitter measurements of both the clock and trigger signals at the master and slave AMCs confirmed excellent timing stability and negligible degradation, validating the feasibility of this approach for deterministic, high-precision synchronization in complex distributed control systems.
