{"product_id":"schneider-modicon-s908-ass908022-remote-i-o-modules","title":"Schneider ASS908022 Modicon S908 Remote I\/O Processor Module","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\u003cp\u003eThe Schneider Electric ASS908022 is a dedicated S908 Remote I\/O Processor module designed for integration within Modicon 984 and Quantum PLC backplane environments. This module serves as a critical communication interface, managing deterministic data exchange between the central processor and distributed I\/O drops. It is specifically engineered to maintain high-speed, reliable communication in demanding industrial sectors, including power generation, mining, and petrochemical processing, where signal integrity and network uptime are essential.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eSupports deterministic token-passing communication protocols for real-time I\/O scanning.\u003c\/li\u003e\n\u003cli\u003eEnables redundant network architecture with automatic switchover between dual coaxial channels (Channel A\/B) in the event of a fault.\u003c\/li\u003e\n\u003cli\u003eProvides galvanic isolation to shield sensitive backplane logic from electromagnetic interference and transient surges.\u003c\/li\u003e\n\u003cli\u003eIntegrates directly into existing Modicon 984 and Quantum rack structures.\u003c\/li\u003e\n\u003cli\u003eFacilitates advanced diagnostics for line fault tracking and communication drop isolation.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eApplications\u003c\/h3\u003e\u003cp\u003eThis module is typically utilized in large-scale distributed control systems where remote I\/O stations are spread across wide geographical areas. It is suitable for continuous process control applications that require redundant communication paths to prevent system downtime during cable failures or signal degradation.\u003c\/p\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 Interface\u003c\/td\u003e\n\u003ctd\u003eDual BNC (Channel A and Channel B)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTransmission Rate\u003c\/td\u003e\n\u003ctd\u003e1.544 Mbps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMedia Type\u003c\/td\u003e\n\u003ctd\u003e75 Ohm RG-6 \/ RG-11 Coaxial\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Drop Capacity\u003c\/td\u003e\n\u003ctd\u003e32 Remote Stations\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\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e850 mA at 5 VDC (backplane powered)\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\u003c\/table\u003e\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eEnsure the PLC chassis is powered down before inserting or removing the module to prevent electrical damage.\u003c\/li\u003e\n\u003cli\u003eVerify that the backplane slot is clean and free of debris before seating the module.\u003c\/li\u003e\n\u003cli\u003eUse high-quality 75 Ohm coaxial cable and proper BNC termination to maintain signal integrity over long distances.\u003c\/li\u003e\n\u003cli\u003eMaintain proper grounding of the coaxial shield at designated points to minimize EMI\/RFI impact.\u003c\/li\u003e\n\u003cli\u003eEnsure adequate ventilation around the rack to maintain operating temperatures within the specified 0-60 deg C range.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat is the primary function of the ASS908022 module?\u003c\/strong\u003e\u003cbr\u003eIt acts as a communication processor that manages the S908 remote I\/O network, mapping remote I\/O registers directly into the main controller's memory for deterministic data handling.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes this module support redundant communication?\u003c\/strong\u003e\u003cbr\u003eYes, it supports a dual-channel coaxial configuration, allowing the system to automatically switch between Channel A and Channel B within a single network scan cycle if a fault is detected.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan this module be used with Quantum series controllers?\u003c\/strong\u003e\u003cbr\u003eYes, the ASS908022 is compatible with both Modicon 984 and Quantum backplane architectures.\u003c\/p\u003e","brand":"Schneider","offers":[{"title":"Default Title","offer_id":44745110061144,"sku":"ASS908022","price":172.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0670\/2039\/0488\/files\/wm_1_78b51604-64f8-43b4-9224-f0af60a70b86.jpg?v=1788935222","url":"https:\/\/www.industriaxplc.com\/products\/schneider-modicon-s908-ass908022-remote-i-o-modules","provider":"IndustriaX Limited","version":"1.0","type":"link"}