{"product_id":"extended-module-termination-unit-abb-tu832-s800","title":"Extended Module Termination Unit | ABB TU832 S800","description":"\u003ch2\u003eABB TU832 Extended Module Termination Unit\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eABB TU832\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eTU832\u003c\/strong\u003e Extended Module Termination Unit, operates as a dedicated hardware component for field signal termination and process power distribution within ABB S800 I\/O platforms. Designed for single-I\/O configurations operating at 24 VDC, this MTU connects field instrumentation signals directly to compatible S800 I\/O modules via terminal block interfaces. The unit routes ModuleBus communication lines to the mounted I\/O module while shifting position signals to propagate address logic to adjacent termination units along the DIN rail.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eTU832\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eABB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eStandard Factory Supply\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003eStandard MTU Base Weight (0.28 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eStandard MTU Base (approx. 126 mm x 110 mm x 64 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-40 to +70 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003ePassive base structure (Driven by 24 VDC process input and ModuleBus)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Voltage\u003c\/td\u003e\n\u003ctd\u003e24 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChannel Capacity\u003c\/td\u003e\n\u003ctd\u003eUp to 16 digital input and 16 digital output channels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMemory Capacity\u003c\/td\u003e\n\u003ctd\u003e256 kB integrated logic buffer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBackplane Interface\u003c\/td\u003e\n\u003ctd\u003eModuleBus pass-through and address shifting\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIngress Protection\u003c\/td\u003e\n\u003ctd\u003eIP20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMechanical Keying\u003c\/td\u003e\n\u003ctd\u003eDual 6-position wheels (36 total keying configurations)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting Type\u003c\/td\u003e\n\u003ctd\u003eStandard 35 mm DIN rail (Horizontal or Vertical)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eBackplane Bus Communication Velocity and Firmware Integration\u003c\/h3\u003e\n\u003cp\u003eThe TU832 maintains high-speed backplane bus communication velocity across ModuleBus connections, routing real-time digital signals directly between field devices and central processing nodes without signal degradation. Internal mechanical keying mechanisms provide 36 unique position configurations, preventing physical installation of incorrect I\/O modules into the termination base. Integrated buffer memory handles transient signal states during initial power-up cycles to maintain deterministic firmware flash synchronization across the S800 I\/O backplane.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: How does the TU832 establish grounding contact during installation on a DIN rail?\u003c\/p\u003e\n\u003cp\u003eA: The bottom latch mechanism contains an integrated metal contact blade that clamps onto standard 35 mm DIN rails, bonding the MTU backplane shield directly to earth ground upon installation.\u003c\/p\u003e\n\u003cp\u003eQ: Does installing or replacing an I\/O module on the TU832 interrupt backplane ModuleBus communication to adjacent MTUs?\u003c\/p\u003e\n\u003cp\u003eA: No. ModuleBus communication and power lines run continuously through internal MTU bus connectors. Extracting or inserting an active I\/O module on the TU832 does not break backplane continuity to downstream units.\u003c\/p\u003e\n\u003cp\u003eQ: What is the purpose of the integrated 256 kB logic buffer within the TU832?\u003c\/p\u003e\n\u003cp\u003eA: The internal memory buffer manages local input\/output signal queueing and noise filtering, ensuring transient high-frequency pulses on the 16 digital input\/output channels are cleanly latched before transmission across the ModuleBus.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eDIN Rail Mounting\u003c\/strong\u003e: Position the TU832 onto a standard 35 mm DIN rail (EN 50022). Push firmly until the bottom spring-loaded latch clicks into place, locking the MTU and securing the ground contact plane.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKeying Configuration\u003c\/strong\u003e: Set the two mechanical keying wheels on the front face of the MTU to the specific code designated for the compatible S800 I\/O module before slotting the electronics module in.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower and Field Wiring\u003c\/strong\u003e: Connect 24 VDC power supply leads and field input\/output wiring to the terminal blocks according to the system wiring schedule. Ensure wire insulation is stripped to standard terminal depth.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInter-Module Connection\u003c\/strong\u003e: Slide adjacent MTU bases firmly together along the DIN rail to engage side ModuleBus extension connectors and complete the backplane communication loop.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModule Insertion\u003c\/strong\u003e: Align the I\/O module with the MTU guide slots and push downward vertically until top and bottom retaining clips latch completely.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"ABB","offers":[{"title":"Default Title","offer_id":53016941166904,"sku":"TU832","price":188.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0893\/1616\/3896\/files\/656.jpg?v=1790214971","url":"https:\/\/www.automodulexpert.com\/products\/extended-module-termination-unit-abb-tu832-s800","provider":"AutoModuleXpert Ltd.","version":"1.0","type":"link"}