{"product_id":"communication-interface-board-allen-bradley-1784-kt","title":"Communication Interface Board | Allen Bradley 1784-KT","description":"\u003cp\u003eThe \u003cstrong\u003e1784-KT\u003c\/strong\u003e is an 8-bit ISA-bus communication interface board designed to link personal computers and industrial workstations with Allen Bradley programmable logic controller networks. Operating as a hardware node on Data Highway Plus (DH+) networks, it enables high-speed data access, system configuration, and online programming across PLC-2, PLC-3, and PLC-5 controller systems.\u003c\/p\u003e\n\u003ch3\u003eBus Architecture and Hardware Configuration\u003c\/h3\u003e\n\u003cp\u003eThe card installs into standard 8-bit or 16-bit ISA expansion slots on industrial PCs. DIP switches mounted directly on the circuit board allow technicians to configure I\/O port address settings and select hardware interrupt lines (IRQ3, IRQ4, IRQ5, or IRQ7) to eliminate system resource conflicts.\u003c\/p\u003e\n\u003cp\u003ePower is drawn directly from the host computer expansion backplane, requiring 0.40 A at 5 VDC and 0.04 A at ±12 VDC. The board features an onboard 62-pin high-density D-shell interface connector for linking to field networks and controllers via dedicated cable assemblies.\u003c\/p\u003e\n\u003ch3\u003eProtocol Support and Data Throughput\u003c\/h3\u003e\n\u003cp\u003eSupporting both synchronous DH+ network communication and asynchronous serial communication standards, the \u003cstrong\u003e1784-KT\u003c\/strong\u003e delivers significantly higher throughput than standard RS-232 serial links. It handles synchronous DH+ data transfer rates up to 57.6 kbaud and asynchronous operations up to 19.2 kbaud.\u003c\/p\u003e\n\u003cp\u003eThis board establishes point-to-point or multi-drop node connections across DH+ links, allowing engineering software installed on the host PC to communicate directly with field-installed controllers for real-time diagnostics and program uploads or downloads.\u003c\/p\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\u003e1784-KT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eAllen Bradley\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003ePC Communication Interface Board\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBus Interface\u003c\/td\u003e\n\u003ctd\u003e8-Bit ISA (Compatible with 8\/16-bit ISA slots)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNetwork Protocols\u003c\/td\u003e\n\u003ctd\u003eData Highway Plus (DH+), Serial\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTarget Controller Compatibility\u003c\/td\u003e\n\u003ctd\u003ePLC-2, PLC-3, PLC-5 Series\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSynchronous Baud Rate\u003c\/td\u003e\n\u003ctd\u003eUp to 57.6 kbaud\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAsynchronous Baud Rate\u003c\/td\u003e\n\u003ctd\u003eUp to 19.2 kbaud\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInterrupt Channels\u003c\/td\u003e\n\u003ctd\u003eIRQ3, IRQ4, IRQ5, IRQ7 (Hardware Selectable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAddressing\u003c\/td\u003e\n\u003ctd\u003eDIP Switch Address Selectable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnector Type\u003c\/td\u003e\n\u003ctd\u003e62-Pin High-Density D-Shell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Current (5 VDC)\u003c\/td\u003e\n\u003ctd\u003e0.40 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Current (±12 VDC)\u003c\/td\u003e\n\u003ctd\u003e0.04 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.14 kg (0.30 lbs)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: What system slot is required to install the 1784-KT card? A: The \u003cstrong\u003e1784-KT\u003c\/strong\u003e is an 8-bit half-size ISA expansion card and requires a standard 8-bit or 16-bit ISA expansion slot on the host computer backplane.\u003c\/p\u003e\n\u003cp\u003eQ: Which Allen Bradley controller families can communicate through the 1784-KT interface? A: It supports communications with PLC-2, PLC-3, and PLC-5 programmable controllers over DH+ network configurations.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":67147646009459,"sku":"1784-KT","price":88.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0644\/4348\/2227\/files\/1784-KT_Cocoai.jpg?v=1794203149","url":"https:\/\/www.dcssupplier.com\/products\/communication-interface-board-allen-bradley-1784-kt","provider":"DcsSupplier Limited","version":"1.0","type":"link"}