{"product_id":"honeywell-51307186-275-header-board","title":"Honeywell 51307186-275 Header Board","description":"\u003cp\u003eConfigured for high-density backplane signal routing and interconnect termination in Honeywell TDC 3000 and Experion PKS DCS cabinets, the \u003cstrong\u003eHoneywell 51307186-275\u003c\/strong\u003e (\u003cstrong\u003e51307186\u003c\/strong\u003e Header Board) provides direct physical\/electrical execution. It establishes passive interface links between field termination assemblies (FTA) and internal system card racks, maintaining low-impedance path continuity across multi-channel I\/O buses.\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\u003e51307186-275\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\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eHeader Board\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e2.0 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eStandard Honeywell High-Density FTA Interface Frame\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e0 deg C to +60 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage Temp\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\u003eHumidity\u003c\/td\u003e\n\u003ctd\u003e5% to 95% non-condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003ePassive bus backplane (negligible power dissipation)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation\u003c\/td\u003e\n\u003ctd\u003eChannel-to-channel and bus-to-ground isolation matching FTA standards\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnector Type\u003c\/td\u003e\n\u003ctd\u003eMulti-pin backplane card edge and multi-ribbon cable headers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eChannel-to-Channel Isolation \u0026amp; CJC Thermal Bus Integrity\u003c\/h3\u003e\n\u003cp\u003eThe Honeywell 51307186-275 board integrates dedicated signal traces engineered to preserve galvanic isolation across analog input channels. When interfacing with thermocouple and RTD modules, the board maintains cold junction compensation (CJC) stability across field termination pathways. Low-resistance trace copper layout suppresses inter-channel crosstalk, maintaining full compatibility with 4-20 mA HART loop protocol signals and high-density process I\/O sub-assemblies without Signal degradation.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Does the 51307186-275 header board support live insertion and removal under operational power?\u003c\/p\u003e\n\u003cp\u003eA: The board itself is a passive interconnect assembly; however, hot-swappable replacement depends on the active I\/O processor and power distribution state of the parent rack assembly. Power disconnection to the specific I\/O branch is recommended prior to unseating.\u003c\/p\u003e\n\u003cp\u003eQ: How does the 51307186-275 header board handle cold junction compensation (CJC) for thermocouple inputs?\u003c\/p\u003e\n\u003cp\u003eA: The header board incorporates dedicated copper compensation pathways and isothermal mounting zones that interface directly with CJC thermistors located on the field termination assembly, keeping measurement drift within specified DCS limits.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eEnsure the control cabinet main power is isolated and ESD prevention protocols are active prior to handling the module.\u003c\/li\u003e\n\u003cli\u003eAlign the board card-edge connectors cleanly with the guide rails on the termination rack assembly.\u003c\/li\u003e\n\u003cli\u003eSlide the board inward until firm contact with the backplane header pins is made, ensuring uniform seating without axial twisting.\u003c\/li\u003e\n\u003cli\u003eFasten all mechanical retaining screws to a maximum torque rating of 0.6 Nm to maintain earth grounding continuity.\u003c\/li\u003e\n\u003cli\u003eVerify cable shield drain wires are terminated strictly at one single point on the main grounding bus to eliminate ground loop currents.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Honeywell","offers":[{"title":"Default Title","offer_id":45373341597811,"sku":"51307186-275","price":233.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0644\/4348\/2227\/files\/51307186-275_44b7da62-4627-4eee-bd5c-7d6a4e0c7a02.png?v=1787111680","url":"https:\/\/www.dcssupplier.com\/products\/honeywell-51307186-275-header-board","provider":"DcsSupplier Limited","version":"1.0","type":"link"}