{"product_id":"controlnet-bridge-module-1756-cnbr-allen-bradley-redundant","title":"ControlNet Bridge Module 1756-CNBR | Allen-Bradley Redundant","description":"\u003ch2\u003e\u003cstrong\u003eAllen-Bradley ControlLogix ControlNet Redundant Bridge Module 1756-CNBR\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThe Allen-Bradley \u003cstrong style=\"color: #2e74b5;\"\u003e1756-CNBR\u003c\/strong\u003e is a high-availability communication bridge for ControlNet networks. It provides dual media ports for simplex or redundant network configurations, ensuring robust data transfer. \u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eCore Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand \u0026amp; Model:\u003c\/strong\u003e Allen-Bradley \u003cstrong style=\"color: #2e74b5;\"\u003e1756-CNBR\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e ControlLogix ControlNet Communication Module\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFunction:\u003c\/strong\u003e Redundant Media Bridge\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eControlNet Ports:\u003c\/strong\u003e 2 BNC Connectors (for redundant\/simplex media)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNetwork Access Port (NAP):\u003c\/strong\u003e 1 RJ-45 (8-pin) for local programming\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eData Rate:\u003c\/strong\u003e 5 Mbps\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMax Connections:\u003c\/strong\u003e 64 total (supports 40-48 Logix connections)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMax Nodes:\u003c\/strong\u003e 99 per network\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBackplane Current:\u003c\/strong\u003e 970 mA @ 5.1V DC, 1.7 mA @ 24V DC\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eInstallation \u0026amp; Compatibility\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Chassis:\u003c\/strong\u003e 1756-A4, A7, A10, A13, A17 ControlLogix racks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Supplies:\u003c\/strong\u003e Works with standard (e.g., 1756-PA75) and redundant (e.g., 1756-PA75R) supplies.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSlot Requirement:\u003c\/strong\u003e Occupies 1 slot in the chassis.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCommunication Cable:\u003c\/strong\u003e Requires 1786-RG6 quad-shield coaxial cable and ControlNet taps.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImportant:\u003c\/strong\u003e Correctly label tap drop cables to prevent segment reversal and network issues.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003ePhysical \u0026amp; Environmental\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 5.51\" x 4.41\" x 5.71\" (140 x 112 x 145 mm approx.)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.64 lbs (0.293 kg)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Temperature:\u003c\/strong\u003e 32° to 140°F (0° to 60°C)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Dissipation:\u003c\/strong\u003e 5.5 Watts Max (17.4 BTU\/hour)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIsolation Voltage:\u003c\/strong\u003e 30V Continuous\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnclosure:\u003c\/strong\u003e Open Type (for chassis mounting)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003ePackaging \u0026amp; Shipping\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOne Allen-Bradley \u003cstrong\u003e1756-CNBR\u003c\/strong\u003e bridge module.\u003c\/li\u003e\n\u003cli\u003eStandard protective packaging.\u003c\/li\u003e\n\u003cli\u003eShipped via FedEx, UPS, or DHL.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eFAQ\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhat is the difference between 1756-CNB and 1756-CNBR?\u003c\/strong\u003e\u003cbr\u003eThe 1756-CNBR has two ControlNet BNC ports to support redundant media, while the 1756-CNB has only one port for simplex networks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhat is the Network Access Port (NAP) used for?\u003c\/strong\u003e\u003cbr\u003eThe RJ-45 NAP port is used for local programming, configuration, and diagnostics of the module using a laptop or programming device.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCan this module be used in a non-redundant network?\u003c\/strong\u003e\u003cbr\u003eYes, it can be used in a standard simplex ControlNet network using just one of its two BNC ports.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":51050792484996,"sku":"1756-CNBR","price":192.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/7454\/7844\/files\/1756-CNBR-1.jpg?v=1767706126","url":"https:\/\/www.etowonauto.com\/nb\/products\/controlnet-bridge-module-1756-cnbr-allen-bradley-redundant","provider":"Etowon Auto","version":"1.0","type":"link"}