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Honeywell designates 621-9939C as a Serial Link Module associated with the UCN control platform.
In day-to-day system operation, its purpose is tied to the system function named for the product. Connection, configuration, and operating requirements should be confirmed from the installed equipment documentation. Final selection should be based on the plant's controlled-equipment records.
UCN 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. Exact operating details should be taken from the installed model documentation.
Country of origin is listed as United States of America.
Honeywell IPC, Honeywell ISSC 600 System
Serial Link Module
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- Charles, Ontario, Canada"Dear Frank and James, This morning we tested the "new" IEPAF01 cards. Everything is fine!!! I want to express my thanks and my personal acknowledgement on how you..."
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