{"product_id":"abb-advant-s800-i-o-tb840a-3bse037760r1-modulebus-cluster-modem","title":"ABB TB840A 3BSE037760R1 Modulebus Cluster Modem","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\u003cp\u003eThe ABB TB840A (3BSE037760R1) is a high-performance Modulebus Cluster Modem designed for the S800 I\/O distributed process control system. This module serves as a critical fiber optic interface to the Optical ModuleBus, enabling robust communication between parent controllers and remote I\/O clusters. The TB840A is specifically engineered for 1+1 redundant configurations, where it facilitates connection to redundant optical ModuleBus lines while maintaining a unified electrical ModuleBus for the connected I\/O modules.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eDual fiber optic ports for connection to the Optical ModuleBus.\u003c\/li\u003e\n\u003cli\u003eIntegrated electrical ModuleBus interface for local I\/O module communication.\u003c\/li\u003e\n\u003cli\u003eSupports 1+1 redundant operation for high-availability applications.\u003c\/li\u003e\n\u003cli\u003eSupervisory functions for monitoring I\/O ModuleBus health and power supply status.\u003c\/li\u003e\n\u003cli\u003eIsolated power supply design to protect I\/O modules.\u003c\/li\u003e\n\u003cli\u003eInput power is internally fused for enhanced safety.\u003c\/li\u003e\n\u003cli\u003eSupports up to 12 I\/O modules on the electrical bus and up to 7 clusters on the fiber optic bus.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eApplications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Generation:\u003c\/strong\u003e Distributed data acquisition and control for thermal and nuclear power plants.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOil \u0026amp; Gas:\u003c\/strong\u003e Process control in refineries, offshore platforms, and pipeline pressure stations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChemical Processing:\u003c\/strong\u003e Continuous control for ethylene cracking and pharmaceutical manufacturing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy Industry:\u003c\/strong\u003e Blast furnace and converter control in metallurgy, and mining beneficiation systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWater Management:\u003c\/strong\u003e Large-scale urban sewage treatment and water pumping stations.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003ctable border=\"1\"\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Model\u003c\/td\u003e\n\u003ctd\u003eTB840A (3BSE037760R1)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication Protocol\u003c\/td\u003e\n\u003ctd\u003eModulebus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Mode\u003c\/td\u003e\n\u003ctd\u003eSlave\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption (24V)\u003c\/td\u003e\n\u003ctd\u003e120 mA (typical)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e0 to +55 degC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage Temperature\u003c\/td\u003e\n\u003ctd\u003e-40 to +70 degC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHazardous Area Ratings\u003c\/td\u003e\n\u003ctd\u003eC1 Div 2 cULus, C1 Zone 2 cULus, ATEX Zone 2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMarine Certifications\u003c\/td\u003e\n\u003ctd\u003eABS, BV, DNV-GL, LR\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHandling:\u003c\/strong\u003e This module contains sensitive electronic components. Always use proper ESD (Electrostatic Discharge) protection during handling and installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e Designed for mounting on a compatible MTU (Module Termination Unit) such as the TU841. Ensure the module is firmly seated to maintain electrical contact.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower:\u003c\/strong\u003e Ensure the 24V DC power supply is disconnected before inserting or removing the module from the bus.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCabling:\u003c\/strong\u003e Use appropriate fiber optic cables for the Optical ModuleBus connections. Ensure proper bend radius and protection for fiber runs to prevent signal loss.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnvironment:\u003c\/strong\u003e Install in an environment compliant with the specified temperature ratings. Ensure adequate ventilation in the cabinet to prevent heat buildup.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFAQs\u003c\/h3\u003e\u003ch3\u003eWhat is the primary function of the TB840A?\u003c\/h3\u003e\u003cp\u003eThe TB840A acts as a fiber optic interface to the Optical ModuleBus, allowing for the distribution of I\/O clusters and enabling 1+1 redundant operation in S800 I\/O systems.\u003c\/p\u003e\u003ch3\u003eCan the TB840A be used in non-redundant systems?\u003c\/h3\u003e\u003cp\u003eWhile optimized for 1+1 redundancy, it serves as the standard interface for connecting I\/O clusters to the Optical ModuleBus in various S800 I\/O configurations.\u003c\/p\u003e\u003ch3\u003eWhat is the maximum capacity of the modem?\u003c\/h3\u003e\u003cp\u003eThe modem supports up to 12 I\/O modules on the electrical ModuleBus and up to seven clusters on the fiber optic ModuleBus.\u003c\/p\u003e","brand":"ABB","offers":[{"title":"Default Title","offer_id":50920459927804,"sku":"TB840A 3BSE037760R1","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/9983\/1292\/files\/wm_1_9a428ed0-7fc4-472f-89ad-305208a72182.jpg?v=1785915238","url":"https:\/\/www.electronicplc.com\/es\/products\/abb-advant-s800-i-o-tb840a-3bse037760r1-modulebus-cluster-modem","provider":"Electronic PLC","version":"1.0","type":"link"}