{"product_id":"1783-us8t-allen-bradley-unmanaged-switch-new-original-stock","title":"1783-US8T Allen-Bradley Unmanaged Switch | New \u0026 Original Stock","description":"\u003ch1\u003eAllen-Bradley 1783-US8T Stratix 2000 Unmanaged Switch\u003c\/h1\u003e\n\u003cp\u003eThe \u003cstrong\u003eAllen-Bradley 1783-US8T\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003e1783-US8T\u003c\/strong\u003e Unmanaged Switch, operates as a dedicated hardware component for 10\/100 Mbps Ethernet packet distribution within Stratix 2000 platforms. Configured with 8 independent copper ports, the device executes raw layer-2 packet forwarding without the need for active address management or CPU processing intervention.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"1\"\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-row=\"1\"\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"2\"\u003eModel\u003c\/td\u003e\n\u003ctd data-row=\"2\"\u003e1783-US8T\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"3\"\u003eBrand\u003c\/td\u003e\n\u003ctd data-row=\"3\"\u003eAllen-Bradley \/ Rockwell Automation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"4\"\u003eOrigin\u003c\/td\u003e\n\u003ctd data-row=\"4\"\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"5\"\u003eWeight\u003c\/td\u003e\n\u003ctd data-row=\"5\"\u003e0.34 kg (0.75 lbs)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"6\"\u003eDimensions\u003c\/td\u003e\n\u003ctd data-row=\"6\"\u003e114.5 mm x 76.8 mm x 45.6 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"7\"\u003eOperating Temp\u003c\/td\u003e\n\u003ctd data-row=\"7\"\u003e-10 to 60 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"8\"\u003ePower Consumption\u003c\/td\u003e\n\u003ctd data-row=\"8\"\u003e4.6 W maximum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"9\"\u003eTotal Ports\u003c\/td\u003e\n\u003ctd data-row=\"9\"\u003e8 Copper RJ45 ports\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"10\"\u003eTransmission Speed\u003c\/td\u003e\n\u003ctd data-row=\"10\"\u003e10\/100 Mbps auto-negotiating\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"11\"\u003ePower Input Voltage\u003c\/td\u003e\n\u003ctd data-row=\"11\"\u003e12-48 VDC \/ 18-30 VAC (50\/60 Hz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"12\"\u003eNominal Current Load\u003c\/td\u003e\n\u003ctd data-row=\"12\"\u003e250 mA at 12-48 VDC \/ 500 mA at 18-30 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"13\"\u003eMax Inrush Current\u003c\/td\u003e\n\u003ctd data-row=\"13\"\u003e1.31 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"14\"\u003eEnclosure Rating\u003c\/td\u003e\n\u003ctd data-row=\"14\"\u003eIP20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"15\"\u003eConfiguration Hardware\u003c\/td\u003e\n\u003ctd data-row=\"15\"\u003eIntegrated DIP switch for Broadcast Storm Protection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eProfinet \/ EtherNet\/IP Deterministic Networks Performance\u003c\/h3\u003e\n\u003cp\u003eThe physical layer structure supports deterministic distribution of EtherNet\/IP and industrial automation frames by utilizing hardware-based broadcast storm protection. When enabled via the integrated DIP switch, internal circuitry caps broad-scale multicast saturation thresholds to maintain predictable backplane bus communication velocity across adjacent PLC modules. The internal buffer architecture scales safely against localized I\/O density scaling spikes, ensuring that standard 10\/100 Mbps transmission streams do not introduce variable packet jitter into real-time producer-consumer network loops.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: How is the maximum inrush current threshold of 1.31 A managed during simultaneous network power-up cycles?\u003c\/p\u003e\n\u003cp\u003eA: The internal power supply circuit features capacitive components that generate a brief 1.31 A surge upon initial voltage application. Upstream 24 VDC power distribution must be sized to tolerate this transient without dropping below the minimum 12 VDC operational threshold.\u003c\/p\u003e\n\u003cp\u003eQ: Does this unmanaged module support custom firmware flash compatibility updates?\u003c\/p\u003e\n\u003cp\u003eA: No. As a completely hardware-configured unmanaged switch, the device lacks an onboard processor or volatile memory allocations reserved for firmware modifications. All logic execution is hardwired within the internal switching fabric.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDIN-Rail Mounting Stability:\u003c\/strong\u003e Snap the rear integrated mounting clip directly onto a standard 35 mm symmetric DIN rail. Ensure the top hook is seated completely before snapping the bottom tension lock into place to prevent physical displacement from operational vibration.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Conductor Termination:\u003c\/strong\u003e Secure incoming AC or DC power lines into the removable terminal plug. Ensure positive, negative, and frame ground connections match the printed terminal markings to avoid reversing electrical polarity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShielding and Grounding Standards:\u003c\/strong\u003e Ground the DIN rail itself to the main protective earth enclosure busbar. Use shielded twisted-pair (STP) Cat5e or Cat6 cabling to mitigate high-frequency electromagnetic interference from surrounding variable frequency drives.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDIP Switch Activation:\u003c\/strong\u003e Prior to powering the unit, set the integrated DIP switch to the active position if broadcast storm mitigation is required for the local machine-level network cell.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen Bradley","offers":[{"title":"Default Title","offer_id":43412138295386,"sku":"1783-US8T","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/5957\/0778\/files\/141._b397c6c9-d0db-4b9b-afcd-6a1b51a4213e.jpg?v=1779672253","url":"https:\/\/www.spareoil.com\/products\/1783-us8t-allen-bradley-unmanaged-switch-new-original-stock","provider":"SpareOil Automation","version":"1.0","type":"link"}