{"product_id":"schneider-modicon-s908-ass908022-remote-i-o-modules","title":"Schneider Electric ASS908022 Modicon S908 Remote I\/O Processor Module","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\u003cp\u003eThe Schneider Electric ASS908022 is a high-performance Remote I\/O Processor Module designed for the Modicon S908 network architecture. It serves as a critical communication bridge within Modicon 984 and Quantum PLC backplane systems, facilitating deterministic, real-time data exchange across distributed industrial environments. This module is engineered to support robust communication backbones in demanding sectors, including power generation, petrochemical processing, and heavy industrial mining, where signal reliability and low-latency data transmission are essential for operational continuity.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eDual-channel communication support for redundant coaxial cable paths (Channel A and Channel B).\u003c\/li\u003e\n\u003cli\u003eAutomatic path switchover capability within a single scan cycle upon detection of line faults or signal attenuation.\u003c\/li\u003e\n\u003cli\u003eGalvanic isolation to protect sensitive backplane components from electromagnetic interference and voltage surges.\u003c\/li\u003e\n\u003cli\u003eDeterministic token-passing protocol management for consistent I\/O scan timing.\u003c\/li\u003e\n\u003cli\u003eSupports up to 32 remote I\/O drops on a single network segment.\u003c\/li\u003e\n\u003cli\u003eDesigned for seamless integration into Quantum and 984 chassis backplane slots.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eApplications\u003c\/h3\u003e\u003cp\u003eThis module is optimized for large-scale distributed control systems requiring long-distance communication and high fault tolerance. It is commonly deployed in applications involving:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eDistributed I\/O networks in thermal power plants.\u003c\/li\u003e\n\u003cli\u003eRemote terminal unit (RTU) coordination in mining and refining facilities.\u003c\/li\u003e\n\u003cli\u003eHigh-speed data acquisition across expansive manufacturing sites.\u003c\/li\u003e\n\u003cli\u003eRedundant network topologies requiring rapid recovery from cable failure.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003ctable border=\"1\"\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eASS908022 (S908 022)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eSchneider Electric\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNetwork Baud Rate\u003c\/td\u003e\n\u003ctd\u003e1.544 Mbps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTransmission Medium\u003c\/td\u003e\n\u003ctd\u003e75 Ohm RG-6 or RG-11 coaxial cable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInterface Ports\u003c\/td\u003e\n\u003ctd\u003eDual BNC connectors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e850 mA at 5 VDC (from backplane)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e0 to 60 deg C\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\u003eMax Network Distance\u003c\/td\u003e\n\u003ctd\u003e4500 m (with repeaters) \/ 1500 m (point-to-point)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eEnsure the PLC backplane power is disconnected before installing or removing the module.\u003c\/li\u003e\n\u003cli\u003eHandle the module using proper ESD precautions to prevent damage to internal circuitry.\u003c\/li\u003e\n\u003cli\u003eSeat the module firmly into the designated chassis slot and secure the locking mechanisms.\u003c\/li\u003e\n\u003cli\u003eUse high-quality 75 Ohm coaxial cabling for all BNC connections; ensure cable shields are properly grounded to minimize noise.\u003c\/li\u003e\n\u003cli\u003eVerify that the dual-channel configuration is correctly mapped in the controller software to enable redundant path switching.\u003c\/li\u003e\n\u003cli\u003eKeep communication cables separated from high-voltage power lines to prevent EMI-induced transmission errors.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat is the primary function of the ASS908022?\u003c\/strong\u003e\u003cbr\u003eThe module acts as a processor for the S908 network, managing the deterministic communication between the main controller and remote I\/O stations over a coaxial bus.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes this module support redundant communication?\u003c\/strong\u003e\u003cbr\u003eYes, it supports dual-channel (A and B) redundancy. If one cable path fails, the module automatically switches to the alternate path within one scan cycle.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat type of cable is required?\u003c\/strong\u003e\u003cbr\u003eThe module is designed for use with 75 Ohm RG-6 or RG-11 coaxial cables terminated with BNC connectors.\u003c\/p\u003e","brand":"Schneider","offers":[{"title":"Default Title","offer_id":48904176566462,"sku":"ASS908022","price":172.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0725\/1145\/5422\/files\/wm_1_cad8ef14-c752-466d-9745-60e8a60415d1.jpg?v=1789194731","url":"https:\/\/www.autooiltech.com\/ar\/products\/schneider-modicon-s908-ass908022-remote-i-o-modules","provider":"AutoOilTech Limited","version":"1.0","type":"link"}