{"product_id":"mu-tstx03-smart-transmitter-interface-fta-honeywell","title":"MU-TSTX03 Smart Transmitter Interface FTA | Honeywell","description":"\u003cp\u003eThe \u003cstrong\u003eHoneywell MU-TSTX03 (51309140-125 Rev. B)\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eMU-TSTX03\u003c\/strong\u003e Smart Transmitter Interface FTA, operates as a dedicated hardware component for serial data exchange and transmitter signal conditioning within Honeywell DCS platforms. The assembly conditions digital process variables and diagnostic telemetry, converting signals over an RS-485 serial link operating at rates up to 1 Mbps under a 5 VDC power supply.\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\u003eMU-TSTX03 (51309140-125 Rev. B)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eHoneywell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-40 to 85 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eLess than 0.5 W (5 VDC Supply)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication Protocol\u003c\/td\u003e\n\u003ctd\u003eRS-485 Serial Communication\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eData Transfer Rate\u003c\/td\u003e\n\u003ctd\u003eUp to 1 Mbps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHardware Revision\u003c\/td\u003e\n\u003ctd\u003eRev. B\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTerminal Type\u003c\/td\u003e\n\u003ctd\u003eField Termination Assembly (FTA)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003e4-20 mA HART Loop Protocol \u0026amp; Serial Line Isolation\u003c\/h3\u003e\n\u003cp\u003eThe MU-TSTX03 features signal isolation circuitry and high noise-immunity differential transceivers designed for RS-485 long-distance field serial communication. This isolation structure prevents common-mode noise and ground potential shifts from disrupting field data transmission. The hardware design enables parallel routing alongside standard 4-20 mA HART loop protocol lines within shared field termination panels, maintaining signal integrity and digital diagnostic pass-through without cross-talk interference.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Can the MU-TSTX03 module be extracted while system backplane power is active?\u003c\/p\u003e\n\u003cp\u003eA: Power off the target rack segment or isolate panel power before removing or inserting the FTA to prevent electrical arc damage and communication loop disruption.\u003c\/p\u003e\n\u003cp\u003eQ: What power source is required to energize the MU-TSTX03 FTA board?\u003c\/p\u003e\n\u003cp\u003eA: The module operates on a regulated 5 VDC power supply, drawing less than 0.5 W of power during active RS-485 communication.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eIsolate main panel power before mounting or removing the FTA assembly from the cabinet track.\u003c\/li\u003e\n\u003cli\u003eInstall the unit inside an enclosed NEMA-rated junction box to shield circuitry from moisture and conductive dust.\u003c\/li\u003e\n\u003cli\u003eWire all RS-485 serial communication connections using shielded twisted-pair cable to suppress EMI interference.\u003c\/li\u003e\n\u003cli\u003eConnect cable shields to the main cabinet ground bus at a single reference point to avoid creating ground loops.\u003c\/li\u003e\n\u003cli\u003eCheck all terminal screw torques to confirm gas-tight wire retention and maintain unblocked enclosure airflow to support operation across the -40 to 85 deg C range.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Honeywell","offers":[{"title":"Default Title","offer_id":52378841481512,"sku":"MU-TSTX03","price":315.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0827\/6266\/2184\/files\/MU-TSTX03.png?v=1789373427","url":"https:\/\/www.powerdcs.com\/es\/products\/mu-tstx03-smart-transmitter-interface-fta-honeywell","provider":"Power DCS Parts Limited","version":"1.0","type":"link"}