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Relay interface modules
providing high-speed
and chemical processing facilities
IGCT/IGBT Technology: Combines the benefits of IGBT's high switching speed and IGCT's low conduction losses
Yokogawa ALR121-S50S1 Communication Module CENTUM VP Protective Relay Module Relay interface modulesProduct Description The ALR121 S50S1 is a high performance serial communication module developed for the Yokogawa CENTUM VP Distributed Control System (DCS). It enables seamless integration of third party subsystemssuch as PLCs, motor control centers (MCCs), protection relays, and analyzersinto the unified CENTUM control environment. Supporting both RS 422 and RS 485 physical layers, the ALR121 S50S1 accommodates complex multi drop network topologies
