Product Overview

The Honeywell 8939-HN is a specialized Multi-Mode Fiber Optic Extender Module designed to transcend the physical distance limitations of standard copper-based I/O links within the Experion PKS Series 8 architecture. Specifically engineered for use with S8 C300 controllers, this module allows for the remote deployment of Series 8 I/O modules far beyond the primary control cabinet. By utilizing optical fiber for signal transmission, the 8939-HN provides a high-speed, noise-immune communication bridge that ensures long-distance data integrity in electrically noisy industrial environments. This extender is a critical component for distributed control strategies, allowing facility engineers to place I/O hardware closer to field instrumentation while maintaining centralized controller logic.

Key Technical Characteristics

The 8939-HN is built to support mission-critical availability through redundant connectivity and advanced optical signal processing.

• Module Function: Remote I/O Link Fiber Optic Extender (IOTA)

• Media Type: Multi-Mode Fiber Optic

• Redundancy Support: Dual "Combo" cable interfaces provide fully redundant I/O Link pathways

• Controller Compatibility: Optimized for Honeywell S8 C300 Controller environments

• Transmission Advantage: Immune to electromagnetic interference (EMI) and radio frequency interference (RFI)

• Connectivity Architecture: Facilitates the extension of the Series 8 I/O Link across distributed process areas

• Diagnostic Support: Integrated status monitoring to verify link health and signal synchronization

• Mounting Profile: Standard Series 8 form factor for seamless cabinet integration

• Weight: 0.4 kg

• Dimensions: 7 x 14 x 14.5 cm

• Origin: USA

Industrial Applications

The deployment of the 8939-HN is essential in large-scale facilities where centralized control of remote process units is a operational requirement:

• Petrochemical and Refining: Connecting remote tank farm instrumentation or off-site loading terminals to a centralized C300 controller.

• Large-Scale Utility Plants: Managing distributed process areas such as water intake stations or cooling towers located at significant distances from the main control room.

• Mining and Material Handling: Extending I/O connectivity across expansive conveyor systems and processing plants without the risk of signal degradation.

• Manufacturing Complexes: Facilitating flexible control architectures in facilities with multiple production lines spread across separate buildings or zones.