{"product_id":"allen-bradley-1785-ka-dh-dh-communication-adapter","title":"Allen Bradley 1785-KA DH\/DH+ Communication Adapter","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe Allen-Bradley 1785-KA is a communication adapter module for PLC-5 systems. It connects Data Highway Plus (DH+) networks to the original Allen-Bradley Data Highway network, enabling communication between PLC-5 processors and legacy PLC-2 and PLC-3 devices on existing Data Highway installations.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specs\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFunction:\u003c\/strong\u003e DH+ to Data Highway communication bridge\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNetwork 1:\u003c\/strong\u003e Data Highway Plus (DH+)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNetwork 2:\u003c\/strong\u003e Data Highway (DH)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e 1771 I\/O chassis slot (except slot 0)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlatform:\u003c\/strong\u003e PLC-5 \/ 1771 I\/O\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatibility:\u003c\/strong\u003e PLC-5\/10, \/12, \/15, \/25, \/30, \/40, \/60, \/250 processors\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBridges DH+ and legacy Data Highway networks\u003c\/li\u003e\n\u003cli\u003eEnables PLC-5 communication with PLC-2 and PLC-3 processors\u003c\/li\u003e\n\u003cli\u003eMessage routing between network nodes\u003c\/li\u003e\n\u003cli\u003eInstalls in standard 1771 I\/O chassis\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhat is the difference between 1785-KA and 1785-KA5?\u003c\/strong\u003e The 1785-KA bridges DH+ to Data Highway; the 1785-KA5 bridges DH+ to DH485 (SLC 500 networks).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhich slot does it install in?\u003c\/strong\u003e Any slot except slot 0 (leftmost) of the 1771 I\/O chassis.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIs it still supported?\u003c\/strong\u003e The 1785-KA is a legacy module available through surplus channels for maintaining existing installations.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eInstallation Guide\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003ePower down the 1771 I\/O chassis.\u003c\/li\u003e\n\u003cli\u003eInstall the module in any slot except slot 0.\u003c\/li\u003e\n\u003cli\u003eConnect the DH+ port to the Data Highway Plus network using 1770-CD cable.\u003c\/li\u003e\n\u003cli\u003eConnect the DH port to the Data Highway network.\u003c\/li\u003e\n\u003cli\u003eConfigure network addresses and verify communication with remote nodes.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch3\u003eSelection Tips\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSelect 1785-KA for connecting PLC-5 systems to legacy Data Highway networks.\u003c\/li\u003e\n\u003cli\u003eFor DH485 (SLC 500) connectivity, choose the 1785-KA5 instead.\u003c\/li\u003e\n\u003cli\u003eVerify existing network infrastructure before ordering; both networks must be operational.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":52985702580535,"sku":"1785-KA","price":188.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0798\/8343\/6343\/files\/1785-KA_1_1_34f39cad-1bc0-47a7-9ab1-e0d87488d4f0.jpg?v=1789375196","url":"https:\/\/www.controltech-supply.com\/products\/allen-bradley-1785-ka-dh-dh-communication-adapter","provider":"ControlTech Supply Limited","version":"1.0","type":"link"}