{"product_id":"bachmann-fm221-fastbus-master-module","title":"Bachmann FM221 FASTBUS Master Module","description":"\u003cp\u003eThe \u003cstrong\u003eBachmann FM221\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eFM221\u003c\/strong\u003e FASTBUS Master Module, operates as a dedicated hardware component for high-speed deterministic data network expansion within Bachmann M1 automation systems. Configured for long-distance optical bus extension, this module provides direct physical\/electrical execution to bridge M1 controller stations up to 2000 meters via multi-mode fiber infrastructure. It handles real-time packet serialization and optical transformation natively at the hardware tier to maintain uninterrupted backplane communication links.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\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\u003eFM221 (FASTBUS Master Module)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eBachmann Electronic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eAustria\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e675 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e110 mm x 119 mm x 61 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-30 to +60 deg C (Standard industrial envelope)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Supply\u003c\/td\u003e\n\u003ctd\u003e18-34 V DC external input potential\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFiber Optic Port\u003c\/td\u003e\n\u003ctd\u003e1x FO-port\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFiber Media Support\u003c\/td\u003e\n\u003ctd\u003e50\/62.5 um multi-mode fiber optic cabling\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Distance\u003c\/td\u003e\n\u003ctd\u003eUp to 2000 meters\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnector Typology\u003c\/td\u003e\n\u003ctd\u003eLC connector interface\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eFiber Optic Communication Modules\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eIndustrial Control \u0026amp; Deterministic Networks\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBackplane Bus Communication Velocity and Optical Translation\u003c\/strong\u003e The FM221 incorporates a specialized optical transceiver chipset designed to mirror local M1 backplane variables onto the fiber optic trunk line. Operating parallel to the central processor's execution cycles, the hardware converts high-velocity electrical bus sequences into synchronous light pulses, ensuring long-distance sub-nodes remain aligned with zero data packet degradation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProfinet \/ EtherNet\/IP Deterministic Networks and Optical Isolation\u003c\/strong\u003e By routing critical system interlocks and data blocks over a multi-mode fiber path, the hardware provides complete galvanic isolation between distant network nodes. This configuration suppresses common-mode voltage fluctuations, ground loop currents, and ambient electromagnetic interference (EMI), keeping the internal low-voltage memory registers and processor chips protected from field-side electrical hazards.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: What specific network diagnostics or system fault indicators manifest if the optical attenuation limits are exceeded or the fiber snaps?\u003c\/p\u003e\n\u003cp\u003eA: A total drop in light intensity below the receiver threshold breaks the token-ring or master-slave loop. The module instantly registers a loss of synchronization, flags an unmasked fieldbus timeout fault bit to the main processing rack, forces all downstream remote I\/O nodes into safe-state defaults, and illuminates the red error LED on the faceplate.\u003c\/p\u003e\n\u003cp\u003eQ: Is this FASTBUS master module hot-swappable while the 18-34 V DC power supply terminal is active?\u003c\/p\u003e\n\u003cp\u003eA: No, the module does not support hot-swapping while energized. Disconnecting or seating the high-density backplane connector under live electrical potential can cause inductive arcs, disrupt ongoing serial communication frames for adjacent modules on the shared bus, and cause permanent component damage to the interface transceivers.\u003c\/p\u003e","brand":"Bachmann","offers":[{"title":"Default Title","offer_id":45121751941235,"sku":"FM221 FASTBUS","price":88.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0644\/4348\/2227\/files\/screenshot_2026-06-23_09-30-44_289b1bcf-ff52-4a0f-ba83-62da34d071c3.png?v=1782180179","url":"https:\/\/www.dcssupplier.com\/products\/bachmann-fm221-fastbus-master-module","provider":"DcsSupplier Limited","version":"1.0","type":"link"}