Honeywell | UCN 621-9928

Product Details

• Part Number 1 621-9928

Product Description

The Honeywell 621-9928 is a Serial Link Selector used with the UCN automation 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. Application should remain aligned with the documented system design.

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. This helps preserve the function assigned to the installed control node.

For maintenance or replacement work, the exact module designation should be checked against the installed hardware, wiring records, and control-system documentation before the component is placed into service. The product remains part of the broader control and signal-handling arrangement.

Product Documentation

• Specification PDF honeywellucn.pdf
• Part Notes

  Honeywell ISSC 600 System

  DCS Center can repair your 621-9928 part or offer an exchange for quick turnaround. This Honeywell UCN unit New, Remanufactured or Repaired is fully warranted by DCS Center.

• Catalog Description

  621-9928 Serial Link Selector Module (SLS), for dual redundant systems

• Common Part Typos 6219928, 62I-9928, 62I9928, 62l-9928, 62l9928

Reviews

5.0 Rating

"Thank you for your help in finding new surplus parts for our ABB system. Y'all always do a great job for us. We are happy to buy from..."

- Amanda, United States

"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..."

- Carmelo I., Italy

"Frank, you're a Rock Star! Thank you for the quick response, and great customer service, very refreshing these days! Great pricing"

- Charles, Ontario, Canada

"Frank, we are very happy with your service. Our test mechanic has checked the controllers, they all are good!"

- Tony N., United States

"James is the BEST! He makes sure all your questions are answered and that you're happy with your order before it's shipped. My part arrived right on time...."

- Katie, United States

"Been doing business with the DCS Center for years. Quick responses, solid repairs and excellent follow-up support!"

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