{"product_id":"isolated-link-coupler-allen-bradley-1747-aic","title":"Isolated Link Coupler | Allen-Bradley 1747-AIC","description":"\u003cp\u003eThe \u003cstrong\u003e1747-AIC\u003c\/strong\u003e isolated link coupler is a hardware interface device designed for Allen-Bradley SLC 500 programmable logic controller networks. It connects devices utilizing the DH-485 communication protocol, providing electrical isolation to protect connected nodes from ground loops, electrical noise, and transient voltage surges on industrial shop floors.\u003c\/p\u003e\n\u003ch3\u003eCommunication and Isolation Function\u003c\/h3\u003e\n\u003cp\u003eThis coupler links multiple DH-485 nodes, such as SLC 500 processors, PanelView terminals, and programming PCs, onto a shared communication trunkline. The internal optical and galvanic isolation barriers safeguard sensitive controller communication ports from common-mode voltage differences between remote equipment racks.\u003c\/p\u003e\n\u003ch3\u003ePower Requirements and Cabling\u003c\/h3\u003e\n\u003cp\u003eThe module requires an external 24 VDC power supply connected to its terminal block to operate the isolation circuitry and transceiver drivers. It features dual RJ45 communication ports and a removable screw-clamp terminal strip, allowing straightforward daisy-chain wiring topologies across standard Belden communication cables.\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\u003e1747-AIC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eAllen-Bradley (Rockwell Automation)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eIsolated Link Coupler\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Family\u003c\/td\u003e\n\u003ctd\u003eSLC 500\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNetwork Protocol\u003c\/td\u003e\n\u003ctd\u003eDH-485 Network\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Supply\u003c\/td\u003e\n\u003ctd\u003e24 VDC External Power Required\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.71 lbs (approx. 0.32 kg)\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: Does the 1747-AIC draw power directly from the DH-485 network cable? A: No. The unit requires a dedicated external 24 VDC power source wired to its terminal block to function and power the isolation barriers.\u003c\/p\u003e\n\u003cp\u003eQ: What is the primary purpose of the isolation feature on this coupler? A: It protects controller communication ports and prevents data corruption by breaking electrical ground loops and blocking voltage transients between distributed network nodes.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":53256157135128,"sku":"1747-AIC","price":270.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0892\/3483\/3688\/files\/1747-AIC_2.png?v=1794450745","url":"https:\/\/www.innoplcsync.com\/products\/isolated-link-coupler-allen-bradley-1747-aic","provider":"InnoPLC Sync Co., Ltd.","version":"1.0","type":"link"}