{"product_id":"abb-rer103-re_500-series-bus-connection-module-fiber-interface","title":"ABB RER103 RE_500 Series Bus Connection Module Fiber Interface","description":"\u003ch3\u003e\u003cstrong\u003eProduct Description\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cstrong\u003eOverview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eRER103\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis a dedicated bus connection module from ABB, designed to provide seamless communication between RE_500 series protection and control relays and fiber-optic networks. It converts RS-485 electrical signals from relays into optical signals compatible with SPA-bus, LON®, or IEC 60870-5-103 networks, ensuring long-distance, interference-free communication in substations.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eProtocol Compatibility and Signal Conversion\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eSupports multiple communication protocols: SPA-bus, LON®, and IEC 60870-5-103.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eBi-directional signal conversion allows relay RS-485 communication to interface with optical fiber networks and vice versa.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFiber-Optic Connectivity\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eProvides total immunity to electromagnetic interference (EMI), critical in high-voltage substation environments.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eEnsures galvanic isolation between relays and communication networks, protecting equipment from ground loops and electrical surges.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eDesign and Installation\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eCompact plug-in module attaches directly to the 9-pin D-type connector on the rear of RE_500 devices.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003ePowered through the D-type connector, eliminating the need for additional power supplies.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eIncludes a Service Pin for easy LON® network configuration and node identification during setup.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eAvailable Variants\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eRER103-BB:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ePlastic fiber transmitter and receiver for short-range connections.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eRER103-MM:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eGlass fiber transmitter and receiver for long-distance networks.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eRER103-BM\/MB:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eMixed fiber configurations for specialized network designs.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003cth align=\"left\"\u003eFeature\u003c\/th\u003e\n\u003cth align=\"left\"\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\"\u003eCommunication Protocols\u003c\/td\u003e\n\u003ctd align=\"left\"\u003eSPA-bus, LON®, IEC 60870-5-103\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\"\u003eElectrical Interface\u003c\/td\u003e\n\u003ctd align=\"left\"\u003eRS-485 D-type connector (9-pin)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\"\u003eFiber Types\u003c\/td\u003e\n\u003ctd align=\"left\"\u003ePlastic (HFBR-4501\/4511), Glass (ST connectors)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\"\u003eTransmission Range\u003c\/td\u003e\n\u003ctd align=\"left\"\u003eUp to 30 m for plastic fiber, 1000 m for glass fiber\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\"\u003eData Rate\u003c\/td\u003e\n\u003ctd align=\"left\"\u003eUp to 1.25 Mbit\/s (LON standard)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\"\u003ePower Supply\u003c\/td\u003e\n\u003ctd align=\"left\"\u003eProvided via D-type connector\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\"\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd align=\"left\"\u003e-10°C to +55°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\"\u003eDimensions\u003c\/td\u003e\n\u003ctd align=\"left\"\u003e35 mm (W) x 73 mm (H) x 20 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\"\u003eMounting\u003c\/td\u003e\n\u003ctd align=\"left\"\u003ePlug-in, rear connector of RE_500 relay\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cstrong\u003eApplications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eRER103\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis ideal for substation automation systems requiring secure, long-distance communication between protection relays and network controllers. It is compatible with RE_500 relays such as REF 541, REM 543, and RET 541.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eFrequently Asked Questions\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the function of the RER103?\u003c\/strong\u003e\u003cbr\u003eIt serves as a communication bridge between RE_500 series relays and fiber-optic networks, converting RS-485 electrical signals to optical signals.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhich relays are compatible?\u003c\/strong\u003e\u003cbr\u003eAny RE_500 series device equipped with a 9-pin D-type connector, including REF 541, REM 543, and RET 541.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan it be used for long-distance communication?\u003c\/strong\u003e\u003cbr\u003eYes, glass fiber versions (RER103-MM) support transmission up to 1000 meters, while plastic fiber versions (RER103-BB) are suitable for shorter connections.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs additional power required?\u003c\/strong\u003e\u003cbr\u003eNo, the module draws power directly from the host relay via the D-type connector.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the recommended alternatives?\u003c\/strong\u003e\u003cbr\u003eFor new installations, ABB suggests SPA-ZC modules or modern Ethernet-based gateways.\u003c\/p\u003e","brand":"ABB","offers":[{"title":"Default Title","offer_id":44133010014307,"sku":"RER103","price":180.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0549\/2775\/3315\/files\/ABBRER103.jpg?v=1776824284","url":"https:\/\/precisemodule.com\/products\/abb-rer103-re_500-series-bus-connection-module-fiber-interface","provider":"Precise Module Ltd.","version":"1.0","type":"link"}