HONEYWELL 8939-HN
HONEYWELL 8939-HN
HONEYWELL 8939-HN
HONEYWELL 8939-HN
HONEYWELL 8939-HN
HONEYWELL 8939-HN
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8939-HN

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Honeywell 8939-HN is a multimode fiber optic extender IOTA designed for Experion® PKS Series 8, extending I/O links reliably for remote Series 8 I/O modules.
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Technical specifications for 8939-HN

  • Manufacturer:
    Honeywell
  • Part Number:
    8939-HN
  • Product Family:
    Honeywell Experion PKS ( C200, C300 )
  • Product Type:
    Multi-Mode Fiber Optic Extender IOTA
  • Stock:
    2
  • Input Voltage:
    24V DC (typically 20-30V DC)
  • Rated Current:
    Approx. 250mA
  • Transmission Medium:
    Multi-Mode Fiber
  • Interface Type:
    Typically LC/LC connector
  • Data Rate:
    10 Mbps
  • Operating Temp:
    External: 0 to 50°C; Internal : 0 to 60°C .
  • Transportation and Storage Temp:
    40 to 85°C
  • Temp. Rate of Change:
    <= 1°C/min (Operating Limit ); <=5°C/min (Transportation and Storage Limits)
  • Relative Humidity:
    5 to 95% (non-condensing)
  • Barometric Pressure Altitude:
    -300 to +3000 m
  • Mechanical Shock (3 Axes):
    Site Induced: Terminal Peak Sawtooth waveform 4g max. @25ms
  • Weight:
    0.12 kg
  • Estimated shipping dimensions:
    14.5x12x5.5cm
  • Tariff Code:
    8473309000
  • Country of origin:
    USA
  • Place of shipment:
    Xiamen, Fujian, China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

More Information

Overview Manuals Specifications Compliance Application Scenarios Efficiency

Features:

  • Provides Reliable Extension Of Series 8 I/O Links Over Fiber
  • Ensures High-Speed Communication With Redundant IO Connectivity
  • Delivers Robust Operation Under Harsh Industrial Conditions
The Honeywell 8939-HN is a multimode fiber optic extender IOTA designed for Experion® PKS Series 8 systems. It enables remote deployment of Series 8 I/O modules by extending the connection from the S8 C300 controller, allowing users to configure distributed control networks efficiently. Compared to earlier extender models, it provides faster data transmission and enhanced link reliability.

This module supports redundant Combo cable interfaces for secure IO Link connections, ensuring continuous communication between the controller and connected I/O modules. Its multi-mode fiber interface simplifies integration, while LC/LC connectors standardize connectivity across the Series 8 system.

The Honeywell 8939-HN operates reliably across a wide range of environmental and mechanical conditions. It withstands variable temperatures, relative humidity, and mechanical shocks, offering a dependable solution for industrial sites. Its robust design makes it an ideal choice for extending Series 8 I/O links in demanding applications.

The 8939-HN Honeywell Multi-Mode Fiber Optic Extender IOTA may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
Honeywell 8939-HN Multi-Mode Fiber Optic Extender IOTA Manuals,Datasheets,Link Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
Honeywell 8939-HN Multi-Mode Fiber Optic Extender IOTA Specs

General

  • Manufacturer Honeywell
  • Model 8939-HN
  • Condition New Original ready stock
  • Product Family 8939-HN-W,8937-HN-W,8939-HN-C
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
  • Electrical Isolation: Utilizing optical fiber as the transmission medium provides inherent electrical insulation. This completely eliminates loop currents caused by ground potential differences and protects the controller from field-side lightning strikes or high-voltage surges.
  • Corrosion Protection: Standard G3 conformal coating, compliant with ANSI/ISA-S71.04 standards, withstands corrosive gases such as hydrogen sulfide and chlorine commonly found in chemical plants or refineries.
  • Hazardous Area Certification: Compliant with international certifications such as Class I, Division 2, and ATEX/IECEx, allowing installation in industrial Zone 2 environments with explosive gas risks.
  • Intrinsically Safe Integration: Although the optical fiber itself is not electrically charged, as part of the Series 8 link, it supports use with intrinsically safe I/O, ensuring the overall system's process safety.
  • Remote Distributed I/O Deployment: When field devices are far from the C300 control cabinet (e.g., more than 100 meters but less than 2 kilometers), a fiber optic connection can be used to connect the remote I/O cabinet, eliminating the need for bulky copper multi-core cables.
  • Cross-Building/Area Connections: Suitable for signal connections between tank farms, loading/unloading stations, or different production workshops, solving electromagnetic interference problems in cross-regional communication.
  • Strong Electromagnetic Interference Environments: In areas with dense large motor control centers (MCCs) or frequency converters (VFDs), fiber optic extenders can ensure signal integrity of the control link.
  • System Redundancy Expansion: In applications requiring extremely high availability, its dual redundant interfaces can be used to build highly reliable remote links.
  • Long-Distance High-Speed ​​Transmission: Supports deterministic communication at 10 Mbps, enabling lossless signal transmission over several kilometers on multimode fiber with extremely low latency, meeting real-time control requirements. Reduced cabling costs: Replacing a large number of copper signal cables with fiber optic cables not only reduces material costs and construction complexity but also lightens the load on cable trays.
  • Simplified system maintenance: Supports hot-swapping, allowing expansion modules to be replaced without affecting system operation. Simultaneously, diagnostic information for the fiber optic link can be monitored in real time through the Experion system software.
  • Wide temperature adaptability: Its operating temperature range is -40°C to +85°C, meaning it can be directly installed in outdoor cabinets without air conditioning systems, improving system deployment flexibility.
Description
The Honeywell 8939-HN is a high-performance Multi-Mode Fiber Optic Extender IOTA specifically engineered for Experion® PKS Series 8 control systems. This module allows users to extend I/O links from the S8 C300 controller to remote locations, enabling flexible deployment of Series 8 I/O modules beyond the standard cabinet boundaries. Unlike older extender models such as the 8939-HL, the 8939-HN supports 10 Mbps data rate, uses LC/LC connectors, and provides robust operation under external temperatures of 0–50°C and internal temperatures up to 60°C, making it ideal for industrial environments.

The 8939-HN operates with a 24V DC input voltage (typical 20–30V DC) and draws approximately 250 mA, ensuring consistent power delivery for fiber-based I/O communications. Its multi-mode fiber transmission medium and redundant Combo cable interfaces allow reliable IO Link connections between the S8 C300 controller and Series 8 I/O modules. This redundancy ensures high availability, distinguishing it from legacy 8939-HL extenders that had limited link reliability.

Environmental and mechanical resilience is a key advantage of the Honeywell 8939-HN. It withstands relative humidity from 5–95% (non-condensing), operates at barometric altitudes from -300 to +3000 m, and tolerates mechanical shocks up to 4g @25ms. Additionally, its transport and storage range of -40 to 85°C with controlled temperature change rates (≤1°C/min operating, ≤5°C/min storage) ensures safe handling and deployment across diverse industrial sites.

Designed for seamless integration, the Honeywell 8939-HN supports full connectivity with Series 8 I/O modules via redundant Combo cables and fiber optic media, enhancing deployment flexibility compared with prior models. Its compact design and multi-environment tolerance make it the preferred choice for modern Experion® PKS installations where remote I/O access is required. Overall, the 8939-HN delivers a reliable, high-speed, and environmentally robust solution for extending Series 8 I/O connectivity.
Alternative Names
8939 HN 8937-HN 8938-HN 8940-HN 8937-HN-2 CC-TFE021 CC-KFSGR5 CC-KFSVR5
Technical notes
The GE/Emerson IC695CPK330-ACAS is a PACSystems RX3i CPU controller featuring a Cyber Secure version with conformal coating for enhanced protection against moisture, dust, and corrosive environments.
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FAQS

The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
What is the primary function of the Honeywell 8939-HN?
It is a multi-mode fiber optic extender IOTA that extends I/O links from the S8 C300 controller to remote Series 8 I/O modules.
How does 8939-HN differ from the older 8939-HL model?
The 8939-HN offers 10 Mbps data rate, LC/LC fiber connectors, and better environmental resilience, whereas the 8939-HL had lower speed and less robust temperature and humidity tolerances.
What input voltage does the 8939-HN require?
The module operates on 24V DC, typically between 20–30V DC, drawing approximately 250 mA.
Can the 8939-HN support remote Series 8 I/O installations outside the cabinet?
Yes, the fiber optic extension allows I/O modules to be deployed far from the S8 C300 controller while maintaining fast and reliable communications.

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