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42A3BEPN-84

The Emerson 42A3BEPN-84 is a dedicated control and interface printed circuit board (PCB) used primarily in Vertiv (formerly Emerson Network Power) telecom power systems. It functions as the central communication bridge between the rectifier modules, the system monitoring unit, and the battery distribution.

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Part Number： 42A3BEPN-84 Type： Rectifier Interface & Control Board Compatibility： Designed for Emerson / Vertiv telecom power plants (often used in -48V DC systems). Function： Interfaces with system controller (e.g., R48-XXXX series rectifiers). Manages rectifier parallel operation and active current sharing. Provides communication paths for alarms (Rectifier Fail, Mains Fail, etc.). Mounting： Plug-in module or chassis-mounted within the power shelf. Connectors： Equipped with multi-pin connectors for backplane connection to rectifier slots and ribbon cables for connection to the user interface/monitoring unit.