{"product_id":"1747-dcm-allen-bradley-slc-500-direct-communication-module","title":"1747-DCM Allen-Bradley SLC 500 Direct Communication Module","description":"\u003cp\u003eConfigured for remote I\/O link transfer and data communication within industrial control loops, the \u003cstrong\u003eAllen-Bradley 1747-DCM\u003c\/strong\u003e (\u003cstrong\u003e1747DCM\u003c\/strong\u003e Direct Communication Module) provides direct physical\/electrical execution across backplane and network interfaces.\u003c\/p\u003e\n\u003ch3\u003eModel Suffix Nomenclature Analysis\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1747-DCM: Base catalog designation referencing a direct communication hardware interface built for SLC 500 remote I\/O data transfers.\u003c\/li\u003e\n\u003cli\u003e1747DCM: Alternative spare inventory part code representing identical physical communication hardware configuration without dashes.\u003c\/li\u003e\n\u003cli\u003e1747-DCM\/A: Revision identifier denoting specific hardware release iterations and firmware baseline compliance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\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-DCM\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\u003e0.17 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShipping Dimensions\u003c\/td\u003e\n\u003ctd\u003e15 x 5 x 15 cm\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\u003e360 milliamps at 5 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication Link\u003c\/td\u003e\n\u003ctd\u003eRemote I\/O (RIO)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnector Type\u003c\/td\u003e\n\u003ctd\u003e6-Pin Phoenix Connector\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eBackplane Bus Communication and Network Architecture\u003c\/h3\u003e\n\u003cp\u003eThe module regulates backplane bus communication velocity and firmware flash compatibility across connected SLC 500 rack assemblies. I\/O density scaling relies on precise remote I\/O link transfer mapping while maintaining deterministic network synchronization with distributed field devices. Backplane current loading demands strict adherence to system power budgets, requiring 360 milliamps at 5 Volts DC directly from the chassis bus interface to preserve operational signal integrity.\u003c\/p\u003e\n\u003ch3\u003ePackage Ordering Information\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 x Allen-Bradley 1747-DCM Direct Communication Module hardware unit\u003c\/li\u003e\n\u003cli\u003e1 x 6-Pin Phoenix Connector terminal plug assembly\u003c\/li\u003e\n\u003cli\u003e1 x Technical documentation and jumper setting reference sheet\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003ePhysical Installation and Wiring Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eChassis Slot Placement: Insert the communication module into any available I\/O slot of the designated SLC 500 rack assembly, avoiding positions requiring high-current power supply loads.\u003c\/li\u003e\n\u003cli\u003eRemote I\/O Cabling: Terminate network communication lines using Belden 9463 twinaxial cable connected securely to the 6-pin Phoenix terminal block.\u003c\/li\u003e\n\u003cli\u003eShield Grounding: Connect the communication cable shield drain wire to earth ground at a single point to prevent ground loops and electromagnetic interference.\u003c\/li\u003e\n\u003cli\u003eThermal Management: Maintain standard vertical air clearance inside the enclosure to support natural convection cooling across the housing surface.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDoes this communication module support hot-insertion and removal under power?\n\u003cul\u003e\n\u003cli\u003eNo, inserting or removing the 1747-DCM while the chassis backplane power is active can cause electrical faults and damage internal system circuitry.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eWhat specific cable type is recommended for the remote I\/O link?\n\u003cul\u003e\n\u003cli\u003eThe hardware is designed to operate using Belden 9463 twinaxial cable for reliable data transmission over remote distances.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eWhat is the exact current draw from the backplane power supply?\n\u003cul\u003e\n\u003cli\u003eThe unit draws a continuous current load of 360 milliamps at 5 Volts DC from the chassis backplane bus.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eWhat type of physical connector is utilized for network wiring?\n\u003cul\u003e\n\u003cli\u003eNetwork connections are established using a specialized 6-pin Phoenix connector plug attached directly to the front face of the module.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eCan this module function as a remote I\/O adapter in an SLC 500 system?\n\u003cul\u003e\n\u003cli\u003eYes, the unit facilitates direct communication link transfers allowing the SLC 500 controller to operate as a remote I\/O scanner or adapter.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eAre firmware updates supported through the network communication interface?\n\u003cul\u003e\n\u003cli\u003eYes, firmware flash compatibility allows system updates via connected programming tools without replacing physical hardware components.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eWhat is the official manufacturing status of this hardware model?\n\u003cul\u003e\n\u003cli\u003eThe unit has been officially discontinued by the manufacturer, requiring reliance on legacy maintenance and spare parts inventory channels.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eHow should the module be secured inside the equipment rack?\n\u003cul\u003e\n\u003cli\u003eFasten the integrated top and bottom retaining screws securely to the metal chassis to ensure mechanical stability and proper ground continuity.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":46066409341101,"sku":"1747-DCM","price":88.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/1613\/9181\/files\/1747-DCM_1.jpg?v=1785927532","url":"https:\/\/www.maxwellplc.com\/products\/1747-dcm-allen-bradley-slc-500-direct-communication-module","provider":"Maxwell PLC Ltd","version":"1.0","type":"link"}