{"product_id":"allen-bradley-1771-obd-digital-sourcing-output-module","title":"Allen-Bradley 1771-OBD Digital Sourcing Output Module","description":"\u003cp\u003eThe \u003cstrong\u003eAllen-Bradley 1771-OBD\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003e1771-OBD\u003c\/strong\u003e Digital Sourcing Output Module, operates as a dedicated hardware component for discrete DC load sourcing execution within Allen-Bradley 1771 Universal I\/O Chassis platforms.\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\u003e1771-OBD\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\u003e0.94 lbs (0.43 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eStandard 1771 single-slot chassis module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e0 to 60 deg C (32 to 140 deg F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e15.6 W maximum power dissipation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBackplane Current\u003c\/td\u003e\n\u003ctd\u003e400 mA at 5 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Voltage\u003c\/td\u003e\n\u003ctd\u003e10 to 60 VDC (48 VDC nominal)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Channels\u003c\/td\u003e\n\u003ctd\u003e16 outputs (DC sourcing)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Current Rating\u003c\/td\u003e\n\u003ctd\u003e2 A per output resistive (8 A max per module); 0.2 A pilot duty\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMinimum Load Current\u003c\/td\u003e\n\u003ctd\u003e2.5 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWiring Arm\u003c\/td\u003e\n\u003ctd\u003e1771-WH, 1771-WHF, or 1771-WHFB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eHigh-Density I\/O Isolation and Backplane Determinism\u003c\/h3\u003e\n\u003cp\u003eThe 1771-OBD module supports high I\/O density scaling across deterministic EtherNet\/IP and remote I\/O network architectures by packing 16 discrete sourcing channels into a single chassis slot. Designed to isolate field-side electrical switching noise from sensitive logic circuitry, the module maintains backplane bus communication velocity and stable signal timing during simultaneous multi-channel switching events.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: What are the backplane current draw and internal power dissipation specifications for the 1771-OBD?\u003c\/p\u003e\n\u003cp\u003eA: The module draws 400 mA at 5 VDC from the 1771 chassis backplane rail, with a maximum operational power dissipation of 15.6 W (53.3 BTU\/hr thermal dissipation).\u003c\/p\u003e\n\u003cp\u003eQ: What keying pin positions are required on the chassis backplane before inserting the 1771-OBD?\u003c\/p\u003e\n\u003cp\u003eA: Install keying bands between pins 10 and 12 on the upper backplane connector and between pins 22 and 24 on the lower backplane connector.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eDe-energize main chassis power and external 10 to 60 VDC field loop power before mounting or removing the module.\u003c\/li\u003e\n\u003cli\u003eAlign the module card edges with the top and bottom guide rails of the 1771 I\/O chassis, pushing firmly until the locking latches seat tightly.\u003c\/li\u003e\n\u003cli\u003eTerminate signal conductors (22 to 14 AWG copper wire) to the 1771-WH field wiring arm and tighten terminal screws to 7 to 9 inch-pounds (1.0 Nm).\u003c\/li\u003e\n\u003cli\u003eMaintain separation between field DC signal cabling and high-voltage AC power lines to prevent induced noise and false output triggering.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":48779948753086,"sku":"1771-OBD","price":93.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0725\/1145\/5422\/files\/1771-IXE_2.png?v=1787541730","url":"https:\/\/www.autooiltech.com\/products\/allen-bradley-1771-obd-digital-sourcing-output-module","provider":"AutoOilTech Limited","version":"1.0","type":"link"}