{"product_id":"1771-asb-allen-bradley-plc-5-series-input-output-adapter-module","title":"1771-ASB Allen-Bradley PLC-5 Series INPUT\/OUTPUT ADAPTER MODULE","description":"\u003cp\u003eThe \u003cstrong\u003eAllen-Bradley 1771-ASB\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003e1771ASB\u003c\/strong\u003e Remote I\/O Adapter Module, operates as a dedicated hardware component for interfacing remote 1771 I\/O chassis with programmable controllers within PLC-5 Series control architectures.\u003c\/p\u003e\n\u003ch3\u003eSystem Configuration \u0026amp; Addressing Options\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eChassis Slot Assignment\u003c\/strong\u003e: Installed exclusively in the leftmost slot of any standard 1771 I\/O chassis.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAddressing Flexibility\u003c\/strong\u003e: Configurable via physical jumpers for 2-slot, 1-slot, or 1\/2-slot I\/O addressing modes to optimize data table utilization.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModule Compatibility\u003c\/strong\u003e: Interfaces with standard 8-point, 16-point, and 32-point digital\/analog modules as well as specialized intelligent modules.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure\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-ASB \/ 1771ASB\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\u003eCountry of Origin\u003c\/td\u003e\n\u003ctd\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePlace of Shipment\u003c\/td\u003e\n\u003ctd\u003eXiamen, China\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.74 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShipping Dimensions\u003c\/td\u003e\n\u003ctd\u003e4.5 x 14.5 x 27.5 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\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\u003eStorage Temperature\u003c\/td\u003e\n\u003ctd\u003e-40 to 85 deg C (-40 to 185 deg F)\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\u003eBackplane Current\u003c\/td\u003e\n\u003ctd\u003e1.0 A @ 5 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Dissipation\u003c\/td\u003e\n\u003ctd\u003e5 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThermal Dissipation\u003c\/td\u003e\n\u003ctd\u003e17.06 BTU\/hr\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Distance\u003c\/td\u003e\n\u003ctd\u003e10000 ft @ 57.6k baud rate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTariff Code\u003c\/td\u003e\n\u003ctd\u003e8537101190\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eDeterministic Network \u0026amp; Backplane Architecture\u003c\/h3\u003e\n\u003cp\u003eThe 1771-ASB utilizes deterministic Allen-Bradley Remote I\/O (RIO) communication protocol via Belden 9463 twinaxial cabling. The adapter manages high-density backplane bus communication velocity and handles I\/O density scaling efficiently without incurring CPU processing overhead. Diagnostic status LEDs provide real-time hardware status verification to minimize communication latencies during operational cycles.\u003c\/p\u003e\n\u003ch3\u003eShipping Package Content\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 x 1771-ASB Remote I\/O Adapter Module\u003c\/li\u003e\n\u003cli\u003e1 x Field Wiring Arm\u003c\/li\u003e\n\u003cli\u003eConfiguration Jumpers (pre-installed \/ modular)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003ePhysical Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Down Warning\u003c\/strong\u003e: Always remove primary system power from the 1771 I\/O chassis backplane and field wiring arms prior to insertion or removal to prevent electrical arcing and component degradation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKeying Band Configuration\u003c\/strong\u003e: Insert plastic keying bands on the backplane connectors between pins 54\/56 (upper connector) and pins 16\/18 (lower connector) to ensure proper module alignment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSlot Positioning\u003c\/strong\u003e: Ensure placement is strictly within the leftmost dedicated chassis slot designated for adapter and processor units.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the backplane current draw for the 1771-ASB?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe module draws exactly 1.0 A at 5 VDC from the backplane power supply during continuous operation.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can the 1771-ASB be hot-swapped while the backplane is powered?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo, power must be fully removed from the chassis backplane before inserting or removing the module to avoid equipment damage.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What cable is required for extended remote I\/O runs?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eCommunication over long distances up to 10,000 feet requires standard Belden 9463 twinaxial cable.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Where must the module be positioned in the 1771 chassis?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe 1771-ASB must always occupy the leftmost slot of the chassis, reserved specifically for adapters or processors.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What addressing modes does the 1771-ASB support?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIt supports 2-slot, 1-slot, and 1\/2-slot I\/O addressing to match various module densities in the system image table.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the maximum baud rate supported at maximum cable length?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAt a distance of 10,000 feet, the module reliably sustains data communication rates at 57.6K baud.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How is physical chassis keying managed for this module?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eKeying bands are placed between pins 54 and 56 on the upper backplane connector and pins 16 and 18 on the lower connector.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What diagnostic indicators are provided on the front panel?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eStatus LEDs indicate adapter communication state, active transmission, and internal fault diagnostics.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":46066442731693,"sku":"1771-ASB","price":88.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/1613\/9181\/files\/allen-bradley_1771-asb_3.jpg?v=1786545438","url":"https:\/\/www.maxwellplc.com\/products\/1771-asb-allen-bradley-plc-5-series-input-output-adapter-module","provider":"Maxwell PLC Ltd","version":"1.0","type":"link"}