{"product_id":"tk-mux021-honeywell-serial-interface-module","title":"TK-MUX021 Honeywell Serial Interface Module","description":"\u003cp\u003eThe \u003cstrong\u003eHoneywell TK-MUX021\u003c\/strong\u003e (part number 51404391-375) is a industrial serial interface module designed for data transmission between control systems and field instrumentation. Utilizing an RS485 communication link, it establishes reliable multi-drop networking across distributed industrial automation architectures.\u003c\/p\u003e\n\u003ch3\u003eElectrical Characteristics and Power Profile\u003c\/h3\u003e\n\u003cp\u003eThe module operates on a nominal 24 VDC input supply with a rated primary current consumption of 1.3 A. Internal power rail profiles include current draws of 5.6 mA at 1.2 VDC, 1.0 A at 3.3 VDC, 1.3 A at 5.1 VDC, and 4 mA at 24 VDC, supporting internal logic and signal conditioning circuitry across operational modes.\u003c\/p\u003e\n\u003ch3\u003ePhysical and Operating Environmental Limits\u003c\/h3\u003e\n\u003cp\u003eEngineered for extreme temperature resilience, the \u003cstrong\u003eTK-MUX021\u003c\/strong\u003e operates reliably across an extended temperature range from -40 deg C to +85 deg C. Its compact physical footprint measures 10.8 cm x 8.7 cm x 7.8 cm with a total net weight of 0.59 kg, making it suitable for panel mounting inside dense control enclosures.\u003c\/p\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\u003eTK-MUX021\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003e51404391-375\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\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eSerial Interface Modules\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication Interface\u003c\/td\u003e\n\u003ctd\u003eRS485\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Voltage\u003c\/td\u003e\n\u003ctd\u003e24 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Consumption\u003c\/td\u003e\n\u003ctd\u003e1.3 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature Range\u003c\/td\u003e\n\u003ctd\u003e-40 deg C to +85 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eElectrical Current Draw\u003c\/td\u003e\n\u003ctd\u003e5.6 mA at 1.2 VDC, 1.0 A at 3.3 VDC, 1.3 A at 5.1 VDC, 4 mA at 24 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e10.8 cm x 8.7 cm x 7.8 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.59 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003cp\u003eFrequently Asked Questions\u003c\/p\u003e\n\u003cp\u003eQ: What communication interface is provided on the TK-MUX021 module?\u003c\/p\u003e\n\u003cp\u003eA: The TK-MUX021 utilizes an RS485 serial communication interface for multi-drop serial device data transmission.\u003c\/p\u003e\n\u003cp\u003eQ: What are the primary input power supply requirements for the TK-MUX021?\u003c\/p\u003e\n\u003cp\u003eA: The module requires a 24 VDC input supply with a nominal current consumption of 1.3 A.\u003c\/p\u003e\n\u003cp\u003eQ: What is the operating temperature specification for this module?\u003c\/p\u003e\n\u003cp\u003eA: The module is rated for deployment in wide-temperature environment conditions ranging from -40 deg C to +85 deg C.\u003c\/p\u003e","brand":"Honeywell","offers":[{"title":"Default Title","offer_id":67941273567528,"sku":"TK-MUX021","price":263.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0827\/6266\/2184\/files\/TK-ZLCSR1_531174f7-f6e4-43a0-b30c-7ca43aa7cde9.png?v=1792488813","url":"https:\/\/www.powerdcs.com\/products\/tk-mux021-honeywell-serial-interface-module","provider":"Power DCS Parts Limited","version":"1.0","type":"link"}