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CL6721X1-A4 is identified by Emerson as a Discrete Input Output Card within the Fisher family.
For replacement planning, this type of I/O component participates in the exchange of signals between the process and the control strategy, supporting monitoring, command, or coordinated input/output activity as defined by the system design. The original equipment schedule should guide compatibility review.
The Fisher product family is associated with process measurement and final-control applications. This item should be applied according to the signal, wiring, and equipment requirements of the installed control loop. Maintenance planning should reference the installed hardware configuration.
Country of origin is listed as United Kingdom.
Emerson Process Management, Fisher Rosemount Systems
Discrete I/O Card
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