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The product identified as Emerson KJ3003X1-EA1 is an Interface Terminal Block in the DeltaV hardware family.
Within the process-control arrangement, this component supports the information path between compatible parts of the automation system. Its exact medium, protocol, addressing, and redundancy behavior are determined by the module and system configuration. This helps preserve the function assigned to the installed control node.
DeltaV provides the platform context for this product, while the control system modules classification identifies its broader automation role. Exact application should follow the installed system configuration. Service decisions should reflect the configured signal and control function.
For ongoing lifecycle support, proper application depends on matching the product to the original control-system design, including its physical position, electrical connections, and configured relationship with surrounding hardware. The installed revision should be confirmed before the product is applied.
This 12P0921X012 was previously called the Serial Interface Terminal Block. Used with a Serial Interface Card VE4006P2, KJ3241X1-BA1, and 12P2506X0 among others.
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