{"product_id":"allen-bradley-1747-aic-b-isolated-link-coupler-module","title":"Allen-Bradley 1747-AIC\/B Isolated Link Coupler Module","description":"\u003ch1\u003eAllen-Bradley 1747-AIC\/B Isolated Link Coupler Module\u003c\/h1\u003e\n\u003cp\u003eConfigured for DH-485 network interface coupling in SLC 500 systems, the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eAllen-Bradley 1747-AIC\/B\u003c\/strong\u003e, (\u003cstrong\u003e1747-AIC\/B\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eisolated link coupler module) provides direct physical\/electrical execution of communication isolation and node interconnection across SLC 500 DH-485 network segments.\u003c\/p\u003e\n\u003ch3\u003eSuffix Breakdown \u0026amp; Model Matrix\u003c\/h3\u003e\n\u003cp\u003eThe 1747-AIC\/B designation is treated as a single functional part number within the SLC 500 DH-485 communication accessory family. No additional hardware or option suffix segmentation is defined.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003ctable class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003cth class=\"last:pe-10\"\u003eParameter\u003c\/th\u003e\n\u003cth class=\"last:pe-10\"\u003eSpecification\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\/B\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\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\u003e0.31 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e0 deg C to +60 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eExternal 24 VDC supply (current not specified)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNetwork Option\u003c\/td\u003e\n\u003ctd\u003eDH-485\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupported Devices\u003c\/td\u003e\n\u003ctd\u003e1747-PIC, 1747-DTAM-E\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTerminal Block\u003c\/td\u003e\n\u003ctd\u003e6-position removable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation Voltage\u003c\/td\u003e\n\u003ctd\u003e1500 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eDH-485 Link Isolation and Communication Path Control\u003c\/h3\u003e\n\u003cp\u003eThe module implements galvanic isolation between the DH-485 communication line and connected SLC 500 devices. Signal coupling is executed through isolated transceiver stages, separating network potential from controller logic reference. The DH-485 bus arbitration layer operates in half-duplex or full-duplex compatible modes depending on connected node configuration, with link buffering handled at the coupler interface. Isolation structure limits transient propagation from field communication wiring into backplane-connected equipment.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Does the 1747-AIC\/B support direct backplane communication with SLC 500 processors?\u003cbr\u003eA: No. The module functions as a DH-485 link coupler and does not participate in backplane data execution or I\/O scanning.\u003c\/p\u003e\n\u003cp\u003eQ: What isolation barrier is implemented in the module?\u003cbr\u003eA: The module provides 1500 VDC isolation between the DH-485 communication line and connected device circuitry.\u003c\/p\u003e\n\u003cp\u003eQ: Can the module operate without an external 24 VDC supply?\u003cbr\u003eA: No. The unit requires an external 24 VDC supply for communication interface operation.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eMount the module in accordance with SLC 500 chassis accessory placement rules.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eVerify 24 VDC external supply polarity before energizing the coupler.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMaintain separation between DH-485 wiring and high-voltage conductors to reduce induced coupling.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eUse twisted-pair shielded cable for DH-485 signal routing.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eTerminate cable shield at a single ground reference point to avoid ground loop current paths.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eConfirm node addressing and network termination before system commissioning.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":43537815076954,"sku":"1747-AIC\/B","price":123.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0612\/4601\/3530\/files\/1747-AICB2.jpg?v=1782204472","url":"https:\/\/www.plcmasters.com\/products\/allen-bradley-1747-aic-b-isolated-link-coupler-module","provider":"PLC Masters Ltd.","version":"1.0","type":"link"}