{"product_id":"1775-lx-allen-bradley-communication-adapter-module-plc-3-series","title":"1775-LX Allen-Bradley Communication Adapter Module PLC-3 Series","description":"\u003cp\u003eConfigured for high-speed expansion bus interfacing in PLC-3 controller racks, the \u003cstrong\u003eAllen-Bradley 1775-LX\u003c\/strong\u003e (\u003cstrong\u003e1775-LX\u003c\/strong\u003e Communication Adapter Module) provides direct physical\/electrical execution for inter-chassis data link routing and local signal adaptation.\u003c\/p\u003e\n\u003ch3\u003eSub-System Hardware Matrix\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e1775-LX\u003c\/strong\u003e: Base expansion adapter module engineered for PLC-3 controller chassis data bus extended routing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1775LX\u003c\/strong\u003e: Spare assembly designation referencing equivalent backplane pin configuration and line interface hardware.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eElectrical \u0026amp; Physical 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\u003e1775-LX\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\u003e2.38 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShipping Dimensions\u003c\/td\u003e\n\u003ctd\u003e5.5 x 29.5 x 39.5 cm\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\u003e40 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Requirement\u003c\/td\u003e\n\u003ctd\u003e115\/230 V AC (+\/- 15%)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSignal DC Current\u003c\/td\u003e\n\u003ctd\u003e80 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBus Voltage Range\u003c\/td\u003e\n\u003ctd\u003e5-15 V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBus Current Capacity\u003c\/td\u003e\n\u003ctd\u003e5 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation Voltage\u003c\/td\u003e\n\u003ctd\u003e1500 V AC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLine Termination\u003c\/td\u003e\n\u003ctd\u003e75 ohm resistors required\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\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Humidity\u003c\/td\u003e\n\u003ctd\u003e5-95% RH (non-condensing)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eDeterministic Network Data Handling\u003c\/h3\u003e\n\u003cp\u003eThe adapter uses integrated control logic to maintain overall backplane bus communication velocity across expansion chassis drops. Built-in signal conditioning buffers protect transmission integrity, ensuring process image updates execute with low latency without overloading primary CPU execution sweeps.\u003c\/p\u003e\n\u003ch3\u003eStandard Delivery Hardware\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 x Allen-Bradley 1775-LX Communication Adapter Module\u003c\/li\u003e\n\u003cli\u003e2 x 75 ohm line termination resistors\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eHardware Installation Rules\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eChassis Isolation Procedure\n\u003cul\u003e\n\u003cli\u003eDe-energize all primary 115\/230 V AC power supplies servicing the chassis prior to hardware insertion or extraction.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eBus Termination Installation\n\u003cul\u003e\n\u003cli\u003ePlace 75 ohm termination resistors across outer communication cable endpoints to eliminate high-frequency transmission reflections.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eVoltage Transformer Selection\n\u003cul\u003e\n\u003cli\u003eEnsure system jumpers match local supply inputs (115 V AC or 230 V AC nominal) before applying power to prevent fuse damage.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eCable Separation Standards\n\u003cul\u003e\n\u003cli\u003eRun low-voltage communications lines in separate conduit paths at least 30 cm away from three-phase AC power lines.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical System FAQs\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eWhat is the main function of the 1775-LX adapter module?\u003c\/p\u003e\n\u003cp\u003eIt coordinates data transfers between PLC-3 main racks and external expansion chassis over dedicated communication paths.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWhat galvanic isolation rating applies to the module circuit design?\u003c\/p\u003e\n\u003cp\u003eThe internal isolation barrier is rated for up to 1500 V AC to protect logic circuits from field electrical surges.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eAre terminal resistors mandatory for operational stability?\u003c\/p\u003e\n\u003cp\u003eYes, 75 ohm resistors must be terminated at line ends to maintain correct signal impedance across data links.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCan this module be installed while the backplane is powered up?\u003c\/p\u003e\n\u003cp\u003eNo, insertion or extraction under active power can cause backplane voltage spikes and hardware damage.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWhat power input thresholds apply to the primary power circuit?\u003c\/p\u003e\n\u003cp\u003eThe module operates on 115 V AC or 230 V AC (+\/- 15%) line inputs with a typical consumption of 40 W.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHow does this unit affect backplane bus communication velocity?\u003c\/p\u003e\n\u003cp\u003eThe hardware includes buffered data channels that maintain high-speed bus velocity across multi-rack topologies.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWhat storage temperature range is supported by the hardware?\u003c\/p\u003e\n\u003cp\u003eThe module can be stored safely in unpowered environments ranging from -40 deg C to +85 deg C.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWhat is the maximum humidity limit during operation?\u003c\/p\u003e\n\u003cp\u003eOperating environments must not exceed 95% relative humidity under non-condensing thermal conditions.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":46066445942957,"sku":"1775-LX","price":88.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/1613\/9181\/files\/RDO86-16L_29dc11ab-6185-4762-ad92-d01e40bab5a5.jpg?v=1786442904","url":"https:\/\/www.maxwellplc.com\/products\/1775-lx-allen-bradley-communication-adapter-module-plc-3-series","provider":"Maxwell PLC Ltd","version":"1.0","type":"link"}