{"product_id":"allen-bradley-1756-cnbr-redundant-controlnet-bridge-module","title":"Allen-Bradley 1756-CNBR ControlLogix ControlNet Redundant Bridge Module","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\u003cp\u003eThe Allen-Bradley 1756-CNBR is a ControlLogix ControlNet Bridge module designed to facilitate high-speed communication between ControlLogix controllers and other devices on a ControlNet network. This module supports redundant media configurations, providing increased reliability for critical industrial automation applications. It acts as a bridge, allowing the controller to communicate with I\/O modules, drives, and other controllers across the ControlNet link.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eSupports redundant ControlNet media for enhanced network fault tolerance.\u003c\/li\u003e\n\u003cli\u003eProvides high-speed data transfer rates of 5 Mbps.\u003c\/li\u003e\n\u003cli\u003eIntegrates seamlessly into the ControlLogix chassis, drawing power directly from the backplane.\u003c\/li\u003e\n\u003cli\u003eDesigned for high-availability industrial control environments.\u003c\/li\u003e\n\u003cli\u003eSupports scheduled and unscheduled communication for deterministic I\/O control.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003ctable border=\"1\"\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Model\u003c\/td\u003e\n\u003ctd\u003e1756-CNBR\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication Rate\u003c\/td\u003e\n\u003ctd\u003e5 Mbps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBackplane Current (5.1V DC)\u003c\/td\u003e\n\u003ctd\u003e970 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Draw (24V DC)\u003c\/td\u003e\n\u003ctd\u003e1.7 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Dissipation (Max)\u003c\/td\u003e\n\u003ctd\u003e5.5 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation Voltage\u003c\/td\u003e\n\u003ctd\u003e30V Continuous\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e0 to 60 degC (32 to 140 degF)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eEnsure the ControlLogix chassis is powered down before inserting or removing the 1756-CNBR module to prevent electrical damage.\u003c\/li\u003e\n\u003cli\u003eAlign the module carefully with the chassis slot guides and press firmly until the module is seated and the locking tabs engage.\u003c\/li\u003e\n\u003cli\u003eUse appropriate ControlNet cabling and ensure proper termination at both ends of the network segment to maintain signal integrity.\u003c\/li\u003e\n\u003cli\u003eMaintain adequate clearance around the module to ensure proper airflow and cooling, as the module dissipates up to 5.5 Watts during operation.\u003c\/li\u003e\n\u003cli\u003eFollow standard ESD (Electrostatic Discharge) precautions when handling the module to protect internal circuitry.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003ch3\u003eWhat is the primary function of the 1756-CNBR?\u003c\/h3\u003e\u003cp\u003eThe 1756-CNBR is a communication bridge that allows a ControlLogix controller to interface with the ControlNet network, enabling data exchange with remote I\/O and other controllers.\u003c\/p\u003e\u003ch3\u003eDoes this module support redundant networks?\u003c\/h3\u003e\u003cp\u003eYes, the 1756-CNBR is specifically designed to support redundant ControlNet media, which provides a backup communication path in the event of a cable failure.\u003c\/p\u003e\u003ch3\u003eWhat is the power requirement for this module?\u003c\/h3\u003e\u003cp\u003eThe module draws 970 mA from the 5.1V DC backplane and 1.7 mA from the 24V DC source.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":50754432205052,"sku":"1756-CNBR","price":95.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/9983\/1292\/files\/wm_1_3b362306-01cf-446d-ba1e-1230493cfaf7.jpg?v=1785480135","url":"https:\/\/www.electronicplc.com\/es\/products\/allen-bradley-1756-cnbr-redundant-controlnet-bridge-module","provider":"Electronic PLC","version":"1.0","type":"link"}