{"product_id":"honeywell-621-9939-serial-link-module","title":"Honeywell 621-9939 Serial Link Module","description":"\u003ch3\u003e\u003cstrong\u003eOverview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eHoneywell 621-9939\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis a high-performance Serial Link Module designed for integration within Honeywell Distributed Control Systems (DCS). It provides secure and reliable serial communication between controllers and field devices, ensuring uninterrupted process monitoring and control in industrial environments. Its compact form factor and robust construction make it ideal for installation in control cabinets or tight spaces.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ctable class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eHoneywell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003e621-9939\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Type\u003c\/td\u003e\n\u003ctd\u003eSerial Link Module (UCN – Universal Control Network)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e38 × 267 × 165 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.7 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Supply\u003c\/td\u003e\n\u003ctd\u003e24V DC nominal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication Interface\u003c\/td\u003e\n\u003ctd\u003eSerial link compatible with Honeywell DCS and UCN systems\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eData Transfer\u003c\/td\u003e\n\u003ctd\u003eReliable point-to-point serial communication\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003eTPS (Total Plant Solution) and other Honeywell DCS architectures\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCertifications\u003c\/td\u003e\n\u003ctd\u003eCE, RoHS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e0°C to 60°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage Temperature\u003c\/td\u003e\n\u003ctd\u003e-20°C to 70°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHumidity\u003c\/td\u003e\n\u003ctd\u003e5–95% RH, non-condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting\u003c\/td\u003e\n\u003ctd\u003eDIN rail or panel mount\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eReliable Communication:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eMaintains stable serial data transmission in harsh industrial environments.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSeamless Integration:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eDesigned for direct connectivity with Honeywell TPS and UCN systems.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSpace-Saving Design:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eLightweight and compact to fit into dense control cabinets.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eIndustrial Robustness:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eCertified for CE and RoHS compliance, with operational resilience in typical plant conditions.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eApplications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003ePlant-wide process monitoring and control within Honeywell DCS frameworks\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eIntegration of field instruments, sensors, and actuators via serial communication\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eTotal Plant Solution (TPS) installations requiring reliable serial interfaces\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eFAQ\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cstrong\u003eQ: Can the 621-9939 module support multiple DCS nodes simultaneously?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eA: Yes, it is designed to communicate efficiently with multiple field devices and controllers in TPS and UCN networks.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eQ: Is the module compatible with older Honeywell DCS architectures?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eA: It is compatible with standard UCN-enabled Honeywell DCS setups. Legacy compatibility may require firmware or configuration adjustments.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eQ: What are the mounting options?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eA: The module supports DIN rail and panel mounting for flexible installation in control cabinets.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eQ: Are there similar modules available for comparison?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eA: The\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eHoneywell 621-9938\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eand\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e621-9935\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eprovide similar serial interface functionality with slight variations in redundancy and communication protocol support.\u003c\/p\u003e","brand":"Honeywell","offers":[{"title":"Default Title","offer_id":43881888514136,"sku":"621-9939","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0670\/2039\/0488\/files\/621-9939.jpg?v=1773740656","url":"https:\/\/www.industriaxplc.com\/products\/honeywell-621-9939-serial-link-module","provider":"IndustriaX Limited","version":"1.0","type":"link"}