{"product_id":"honeywell-21402573-250-interface-module","title":"Honeywell 21402573-250 Interface Module","description":"\u003cp\u003eThe \u003cstrong\u003eHoneywell 21402573-250\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003e21402573-250\u003c\/strong\u003e Interface Module, operates as a dedicated hardware component for multi-protocol communication bridging and network data exchange within industrial automation 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\u003e21402573-250\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\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e100 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e10 cm x 8 cm x 2 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating 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\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e24 VDC (Input Voltage)\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 and Channel Isolation\u003c\/h3\u003e\n\u003cp\u003eThe 21402573-250 processes mixed-signal communications across heterogeneous fieldbus loops, converting protocol packets to match high-level supervisory architectures. The 4-20 mA HART loop protocol layer enables concurrent transmission of analog variables and digital diagnostic data without signal degradation. Channel-to-channel isolation circuitry protects low-voltage internal components from transient voltage spikes and ground loops originating in harsh industrial environments. Cold junction compensation (CJC) and internal reference tracking maintain signal fidelity across the extreme -40 deg C to 85 deg C operational temperature spectrum.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: What communication protocols are natively supported by this module?\u003c\/p\u003e\n\u003cp\u003eA: The module supports multiple industrial protocols including Modbus, BACnet, and LonWorks for versatile device integration.\u003c\/p\u003e\n\u003cp\u003eQ: How is operating power supplied to the interface unit?\u003c\/p\u003e\n\u003cp\u003eA: It requires an external stable power supply of 24 VDC delivered via dedicated terminal connections.\u003c\/p\u003e\n\u003cp\u003eQ: Does the hardware support hot-swapping in active control cabinets?\u003c\/p\u003e\n\u003cp\u003eA: Hot-insertion is restricted depending on the specific backplane rack architecture; system power should be isolated prior to physical installation or removal.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMount the module securely on a flat, vibration-damped panel surface or standard DIN enclosure utilizing the compact 10 cm x 8 cm x 2 cm footprint.\u003c\/li\u003e\n\u003cli\u003eEnsure that the 24 VDC input power source is disconnected before attaching or detaching terminal blocks to prevent electrical arcing.\u003c\/li\u003e\n\u003cli\u003eRoute all communication wiring and field bus cables away from high-voltage power lines to minimize electromagnetic interference (EMI) and cross-talk.\u003c\/li\u003e\n\u003cli\u003eVerify proper earth grounding of the enclosure shield to maintain signal integrity across extended operating temperature ranges.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Honeywell","offers":[{"title":"Default Title","offer_id":48188917022910,"sku":"21402573-250","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0725\/1145\/5422\/files\/21402573-250_9855b0a8-b4c2-4802-8775-2ee3484ac58f.png?v=1784795377","url":"https:\/\/www.autooiltech.com\/products\/honeywell-21402573-250-interface-module","provider":"AutoOilTech Limited","version":"1.0","type":"link"}