{"product_id":"1769-ecr-allen-bradley-bus-terminator-new-original-stock","title":"1769-ECR Allen-Bradley Bus Terminator | New \u0026 Original Stock","description":"\u003ch2\u003eAllen-Bradley 1769-ECR Right End Cap Bus Terminator\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eAllen-Bradley 1769-ECR\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003e1769-ECR\u003c\/strong\u003e Right End Cap Bus Terminator, operates as a dedicated hardware component for passive backplane termination within CompactLogix and MicroLogix 1500 system platforms. This unit establishes the end-of-line impedance parameters for the underlying communication tracks. It seals the final termination point to allow deterministic packet execution among standard expansion hardware segments and main processor nodes.\u003c\/p\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\u003e1769-ECR\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\u003eUnited States\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.13 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e118 x 20 x 87 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e0 to 60 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e0.026 W maximum (5 mA at 5.1 VDC nominal)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eRight End Cap Bus Terminator\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem Compatibility\u003c\/td\u003e\n\u003ctd\u003eCompactLogix 5370, 1768-L4x, MicroLogix 1500\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInstallation Position\u003c\/td\u003e\n\u003ctd\u003eRight-hand terminus of last I\/O module slot\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFunction\u003c\/td\u003e\n\u003ctd\u003ePassive electrical bus termination\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHardware Series\u003c\/td\u003e\n\u003ctd\u003eSeries A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRelative Humidity\u003c\/td\u003e\n\u003ctd\u003e5% to 95% non-condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage Temp\u003c\/td\u003e\n\u003ctd\u003e-40 to 85 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eBackplane Bus Communication Velocity and Signal Integrity\u003c\/h3\u003e\n\u003cp\u003eThe passive termination apparatus provides the exact impedance matching constraints necessary to support fast backplane bus communication velocity limits across all 1769 chassis rails. By absorbing residual data signals at the final slot boundary, the module suppresses electromagnetic wave reflection along the logic traces. This suppression preserves the voltage transitions of Profinet or EtherNet\/IP deterministic networks passing data packets through the main local rack. It provides the physical closed-loop execution environment required by the controller to discover and scan the full I\/O density configuration without reporting communication timeouts.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Can the 1769 backplane execute logic processing or identify I\/O modules if this unit is absent?\u003c\/p\u003e\n\u003cp\u003eA: No. The system processor stops communication loop routines and registers a fatal bus fault when the bus terminator is missing. The electrical circuitry tracks remain uncompleted, preventing signal translation through any coupled expansion modules.\u003c\/p\u003e\n\u003cp\u003eQ: Is this end cap terminator component rated for hot-swap operations under energized backplane conditions?\u003c\/p\u003e\n\u003cp\u003eA: No. The termination assembly lacks live-insertion capabilities. Power generation to the entire 1769 chassis must remain completely isolated during installation or removal procedures to prevent logic pin arcing or unintended system trips.\u003c\/p\u003e\n\u003cp\u003eQ: Does this hardware component require local address configuration or local firmware flash modification?\u003c\/p\u003e\n\u003cp\u003eA: No. The module is a non-addressable, passive electrical hardware device containing no onboard microcode. It requires zero configuration parameters inside Studio 5000 or RSLogix 5000 environments to complete the physical bus track.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDisconnect all primary and auxiliary electrical power distribution lines from the 1769 power supply before mounting the termination hardware.\u003c\/li\u003e\n\u003cli\u003eAlign the mechanical sliding tongue guides with the female receiving channels located on the far right hand side of the final I\/O module.\u003c\/li\u003e\n\u003cli\u003ePress the integrated mechanical locking latch down completely until the click configuration confirms a rigid, vibration-resistant attachment.\u003c\/li\u003e\n\u003cli\u003eInspect the physical internal contact finger springs to ensure no dust layers or foreign object debris interfere with the backplane logic track interface.\u003c\/li\u003e\n\u003cli\u003ePrevent high-power AC cable layouts from crossing the structural surface of the end cap to avoid high-frequency noise injection on the terminated data channels.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen Bradley","offers":[{"title":"Default Title","offer_id":42870889873498,"sku":"1769-ECR","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/5957\/0778\/files\/339.jpg?v=1771901223","url":"https:\/\/www.spareoil.com\/products\/1769-ecr-allen-bradley-bus-terminator-new-original-stock","provider":"SpareOil Automation","version":"1.0","type":"link"}