{"product_id":"mtl-mtl4841-communications-module","title":"MTL MTL4841 Communications Module","description":"\u003cp\u003eThe \u003cstrong\u003eMTL Instruments MTL4841\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eMTL4841\u003c\/strong\u003e Communications Module, operates as a dedicated hardware component for multi-channel HART data multiplexing and serial host gateway routing within industrial networking platforms.\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\u003eMTL4841\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eMTL Instruments\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eUnited Kingdom\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.30 kg (Net) \/ 1.50 kg (Shipping)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eStandard MTL4000 series plug-in module footprint\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003eStandard industrial cabinet environmental parameters apply\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e\u0026lt; 1.0 W (Powered directly from backplane tracking)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eProtocol Converter Modules\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHost Interface\u003c\/td\u003e\n\u003ctd\u003eRS485 2-wire multidrop loop\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Capacity\u003c\/td\u003e\n\u003ctd\u003eUp to 31 modules per single host station highway\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAddress Assignment\u003c\/td\u003e\n\u003ctd\u003eManual rotary switch-selectable on top of the module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBaud Rate Selections\u003c\/td\u003e\n\u003ctd\u003e1.2, 9.6, 19.2, 38.4 kbaud (Switch-selectable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHighway Length Limits\u003c\/td\u003e\n\u003ctd\u003eUp to 1 km maximum line distance\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSub-Bus Interface\u003c\/td\u003e\n\u003ctd\u003eLinks with up to 16 MTL4842 HART interface modules\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eElectrical Isolation\u003c\/td\u003e\n\u003ctd\u003eComplete galvanic isolation between RS485 output and backplane power\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStatus Indication\u003c\/td\u003e\n\u003ctd\u003eSingle green LED for power and diagnostic verification\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eIndustrial Network and Component Architecture\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtocol Conversion Latencies and Throughput\u003c\/strong\u003e The communications module establishes a streamlined protocol gateway between upstream serial host networks and downstream HART instrument layers. By running localized polling loops across up to 16 slave interface cards, it buffers asset management registers internally to minimize response latencies across the primary host network.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntrinsic Safety Barriers and Noise Suppression\u003c\/strong\u003e Fully isolated RS485 transceiver circuitry prevents external surge voltages or ground loop anomalies from feeding back into the internal backplane logic rails. This isolation infrastructure maintains physical signal integrity over extended 1 km field segments, suppressing high-frequency common-mode noise across multi-drop topologies.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: How is the physical node address assigned when adding multiple MTL4841 modules to an RS485 network?\u003c\/p\u003e\n\u003cp\u003eA: Node addresses are assigned manually prior to installation by using the hardware switches positioned on top of the module housing. Each unit must be configured with a unique hardware address before it is snapped into the backplane carrier rail to prevent node collisions on the 2-wire serial bus.\u003c\/p\u003e\n\u003cp\u003eQ: What actions does the green LED indicator convey during standard operations?\u003c\/p\u003e\n\u003cp\u003eA: The green LED serves as a combined power and health monitor. A steady green illumination confirms that proper backplane operating power is present and that the internal microprocessor has successfully completed its initialization routines and is actively executing serial communication loops.\u003c\/p\u003e","brand":"MTL","offers":[{"title":"Default Title","offer_id":45090814656627,"sku":"MTL4841","price":233.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0644\/4348\/2227\/files\/screenshot_2026-06-11_13-35-32_2f50c0cc-8598-4042-b2ba-adc45e0684bd.png?v=1781156259","url":"https:\/\/www.dcssupplier.com\/products\/mtl-mtl4841-communications-module","provider":"DcsSupplier Limited","version":"1.0","type":"link"}