{"product_id":"fiber-optic-extender-module-honeywell-8937-hn2-cni2-series","title":"Fiber Optic Extender Module Honeywell 8937-HN2 CNI2 Series","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe Honeywell 8937-HN2 is a high-bandwidth fiber optic extension module engineered to facilitate long-distance data communication between Series 8 controllers and remote CNI2 I\/O racks. Designed for the Honeywell Experion PKS ecosystem, this module overcomes the distance limitations of traditional copper cabling by converting electrical signals into light pulses for transmission over single-mode fiber. It provides a robust, interference-free data link capable of maintaining system integrity across sprawling industrial sites. With integrated signal enhancement and error correction protocols, the 8937-HN2 ensures that critical process data remains synchronized and accurate, even when field I\/O is located kilometers away from the central control room.\u003c\/p\u003e\n\u003ch3\u003eCommunication Performance and Hardware Metrics\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eInterface Type:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eSingle-mode Fiber Optic (SMF)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eTransmission Distance:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eExtends network reach up to 10 kilometers\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eData Throughput:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eSupports high-speed transmission up to 10 Gbps\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003ePower Requirements:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e20V to 30V DC (Standard 24V DC nominal)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCurrent Consumption:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e85 mA Maximum\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eEnvironmental Resilience:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eOperational from -40°C to +70°C\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eRegulatory Compliance:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eIEC 61131-2, CE, TUV, UL508, and CSA certified\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eNet Weight:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e0.53 kg (Shipping mass approximately 0.4kg)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eExternal Dimensions:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e16.5 x 7.5 x 12 cm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSystem Origin:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eManufactured in the USA\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCustoms Tariff Code:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e8537101190\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eIndustrial Deployment and Networking Utility\u003c\/h3\u003e\n\u003cp\u003eThe 8937-HN2 is a vital component for large-scale Distributed Control Systems (DCS) found in sprawling facilities such as offshore oil platforms, expansive petrochemical refineries, and municipal water treatment plants. By utilizing fiber optics, this module provides total galvanic isolation between different plant areas, effectively protecting the CNI2 I\/O modules and central controllers from ground loops and lightning strikes. Its high-speed throughput makes it ideal for data-intensive applications, including high-frequency motor control and complex analytical monitoring. The ruggedized chassis is designed to be mounted on a Series 8 IOTA (I\/O Termination Assembly), allowing for a high-density, space-efficient installation in outdoor or non-climate-controlled marshalling cabinets.\u003c\/p\u003e\n\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Does the 8937-HN2 support multi-mode fiber optic cables?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: No, the 8937-HN2 is specifically optimized for single-mode fiber optic cables to achieve the 10km transmission range and high-speed data rates required for large-scale industrial infrastructures.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is this module compatible with standard Series 8 I\/O configurations?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: Yes, it is designed for seamless integration with Honeywell Series 8 hardware and is typically used to connect remote CNI2 series I\/O modules back to the primary controller cluster.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the benefit of using fiber instead of Ethernet for these connections?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: Fiber optics are immune to electromagnetic interference (EMI) and radio frequency interference (RFI), which are common in industrial environments. Additionally, fiber allows for significantly longer distances (10km) compared to the 100-meter limit of standard copper Ethernet.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Does the module require a separate power source?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: The 8937-HN2 operates on a standard industrial 24V DC supply (20-30V DC range). In most Series 8 installations, this power is delivered through the IOTA carrier on which the module is mounted.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can this module be used in extreme cold or heat?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: Yes, the 8937-HN2 is rated for a very wide temperature range, from -40°C to +70°C, making it suitable for deployment in both Arctic and desert climates without additional heating or cooling units.\u003c\/p\u003e","brand":"Honeywell","offers":[{"title":"Default Title","offer_id":45518939291821,"sku":"8937-HN2","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/1613\/9181\/files\/honeywell-8937-hn2-fiber-optic-extender-module-bzbqig3wwsw.jpg?v=1766982381","url":"https:\/\/www.maxwellplc.com\/products\/fiber-optic-extender-module-honeywell-8937-hn2-cni2-series","provider":"Maxwell PLC Ltd","version":"1.0","type":"link"}