{"product_id":"honeywell-51202789-901-violet-i-o-link-cable","title":"Honeywell 51202789-901 Violet I\/O Link Cable","description":"\u003ch2\u003eHoneywell 51202789-901 Violet I\/O Link Cable\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eHoneywell 51202789-901\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003e51202789\u003c\/strong\u003e I\/O Link Cable, operates as a shielded extender assembly for high-speed digital communication between Honeywell controllers, Series C I\/O modules, and MOXA gateways in distributed control system (DCS) environments.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/th\u003e\n\u003ctd\u003e51202789-901 (Rev. B)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/th\u003e\n\u003ctd\u003eHoneywell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eOrigin\u003c\/strong\u003e\u003c\/th\u003e\n\u003ctd\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/th\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/th\u003e\n\u003ctd\u003eLength 20 in (0.5 m)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eOperating Temp\u003c\/strong\u003e\u003c\/th\u003e\n\u003ctd\u003e-40 to +85 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eStorage Temp\u003c\/strong\u003e\u003c\/th\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eRelative Humidity\u003c\/strong\u003e\u003c\/th\u003e\n\u003ctd\u003eUp to 95%, non-condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003ePower Consumption\u003c\/strong\u003e\u003c\/th\u003e\n\u003ctd\u003ePassive cable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eCore Performance\u003c\/strong\u003e\u003c\/th\u003e\n\u003ctd\u003eViolet shielded cable with RJ45\/Honeywell-specific headers\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 cable is engineered for Honeywell Experion PKS and C300 controllers, supporting integration with Series C I\/O modules and legacy TDC 3000 systems. Heavy EMI\/RFI shielding ensures stable communication in high-noise environments. Channel-to-channel isolation is preserved through conductor geometry, maintaining signal integrity across cabinet layouts and supporting HART loop protocol stability.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Can the 51202789-901 be used interchangeably with the 51202789-900? A: No, the 901 variant is shorter (20 in) and optimized for localized cabinet routing, while the 900 variant is longer (1 m).\u003c\/p\u003e\n\u003cp\u003eQ: How should shielding be terminated during installation? A: Shielding must be grounded at the controller termination point only to prevent ground loop currents.\u003c\/p\u003e\n\u003cp\u003eQ: Is the cable suitable for redundant communication paths? A: Redundancy is managed at the controller level; the cable provides standard single-path extension.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eInstall into cabinet routing with full connector engagement on RJ45 and Honeywell-specific headers.\u003c\/li\u003e\n\u003cli\u003eRoute separately from high-voltage conductors to minimize EMI\/RFI interference.\u003c\/li\u003e\n\u003cli\u003eGround shielding at the controller termination point only.\u003c\/li\u003e\n\u003cli\u003eVerify continuity and insulation integrity before commissioning.\u003c\/li\u003e\n\u003cli\u003eAvoid mechanical stress or bending beyond manufacturer specifications.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Honeywell","offers":[{"title":"Default Title","offer_id":44610889711715,"sku":"51202789-901","price":180.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0549\/2775\/3315\/files\/51202329-112_2.jpg?v=1789020286","url":"https:\/\/precisemodule.com\/products\/honeywell-51202789-901-violet-i-o-link-cable","provider":"Precise Module Ltd.","version":"1.0","type":"link"}