{"product_id":"abb-tb850-3bsc950193r1-ac-800m-cex-bus-terminator-module","title":"ABB TB850 3BSC950193R1 AC 800M CEX-Bus Terminator Module","description":"\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eABB TB850 3BSC950193R1\u003c\/strong\u003e, also cataloged as the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eTB850\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eCEX-Bus Terminator, operates as a dedicated hardware component for providing electrical impedance termination at the physical end-point of a CEX-Bus segment within AC 800M controller architectures.\u003c\/p\u003e\n\u003ch3\u003eModel Identification Data\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eFull Model Number:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eTB850 3BSC950193R1\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eBase Model:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eTB850\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSeries:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eAC 800M\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eFunction:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eImpedance matching for Controller Extension (CEX) bus\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Physical Parameters\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003ctd\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eModel\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eTB850 (3BSC950193R1)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eBrand\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eABB\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eOrigin\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eSweden\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eWeight\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0.1 kg\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eShipping Dimensions\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e5.1 x 2.5 x 7.6 cm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eOperating Temperature\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e-25 deg C to +70 deg C\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003ePower Consumption\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eLogic 5 V DC\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eTermination Impedance\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e120 Ohm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eConnector Type\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eDB25P Male\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eCommunication Bus Integrity\u003c\/h3\u003e\n\u003cp\u003eThe module manages the CEX-Bus deterministic network performance by ensuring impedance matching at the terminal node. By maintaining a 120 Ohm load, the unit suppresses signal reflections and standing waves that occur at high-speed data transmission rates. This signal conditioning is required to support the backplane bus communication velocity and ensure that data packet integrity is maintained when the controller rack is configured with multiple expansion or communication interface modules.\u003c\/p\u003e\n\u003ch3\u003eLogistics and Scope of Delivery\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eOne (1) TB850 CEX-Bus Terminator module.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eIntegrated screw-down mounting hardware (pre-installed).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eStandard industrial packaging compliant with ESD protection protocols.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eMounting and Field Setup\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eLocation:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eInstall the terminator exclusively at the final node of the CEX-Bus daisy-chain.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eMechanical Security:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eUtilize the integrated screw-fixing mechanism to ensure the DB25P male connector is firmly seated against the chassis to mitigate vibration-induced signal intermittency.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eEnvironment:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eEnsure the ambient air temperature remains within the -25 deg C to +70 deg C range; avoid deployment in environments exceeding Pollution Degree 2.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eGrounding:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eVerify that the cabinet chassis provides a low-impedance path to ground to ensure effective shield termination at the controller level.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical FAQs\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCan the TB850 be used in the middle of a CEX-Bus segment?\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eNo, the module must only be installed at the physical end of the bus. Placing it mid-segment will cause impedance mismatching and communication errors.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eIs this module hot-swappable?\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eWhile the physical connector allows for removal, it is recommended to follow site-specific safety procedures for bus-connected hardware to prevent localized signal disturbance.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the function of the 120 Ohm resistor?\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eIt matches the characteristic impedance of the CEX-Bus transmission line to prevent signal reflection.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDoes the module require external power?\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eNo, it derives its power from the 5 V DC logic supply present on the CEX-Bus.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCan I use a standard DB25 connector instead of the TB850?\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eNo, the TB850 contains specific internal circuitry designed for the AC 800M bus impedance requirements.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWhat happens if the TB850 is missing?\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe open-ended bus will experience signal reflections, which manifest as packet collisions and intermittent CPU-to-interface communication failures.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eIs the module compatible with other controller series?\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThis specific module is engineered for the AC 800M controller family.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHow do I clean the contacts?\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eIf oxidation is suspected, use only electronics-grade contact cleaner. Ensure the device is powered down during maintenance.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ABB","offers":[{"title":"Default Title","offer_id":45231153086637,"sku":"3BSC950193R1","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/1613\/9181\/files\/abb-tb850-3bsc950193r1-cex-bus-terminator-ce5xe0lsjzh_01f12e8d-d472-4d3d-8cbb-3957e1e80d7d.jpg?v=1762942122","url":"https:\/\/www.maxwellplc.com\/products\/abb-tb850-3bsc950193r1-ac-800m-cex-bus-terminator-module","provider":"Maxwell PLC Ltd","version":"1.0","type":"link"}