{"product_id":"bus-connection-module-abb-rer103-mm","title":"Bus Connection Module ABB RER103-MM","description":"\u003ch2\u003eABB RER 103 MM Bus Connection Module\u003c\/h2\u003e\n\u003cp\u003eThe ABB \u003cstrong\u003eRER 103 MM\u003c\/strong\u003e is a bus connection module designed to interface protection and control devices across optical and electrical networks. It functions as a signal converter, translating optical inputs from SPA, LON, or IEC 60870-5-103 communication buses into electrical RS-485 signals compatible with equipment such as the RE500 series.\u003c\/p\u003e\n\u003ch3\u003eSignal Conversion \u0026amp; Network Topologies\u003c\/h3\u003e\n\u003cp\u003eThe module bridges optical communication protocols with electrical interfaces to support flexible network architectures. It accommodates both loop and star bus topologies to adapt to different substation automation requirements. Additionally, a selectable line idle state configuration allows users to set the optical signal to lit or dark when the line is idle.\u003c\/p\u003e\n\u003ch3\u003ePhysical \u0026amp; Electrical Characteristics\u003c\/h3\u003e\n\u003cp\u003eCompact and designed for easy integration, the unit measures 35 mm × 73 mm × 20 mm and connects via D-sub connectors. It receives 5 VDC power directly from the host device with a power consumption of approximately 0.4 W, supporting data transmission speeds up to 1.25 Mbps across an operating temperature range of -40 deg C to +70 deg C.\u003c\/p\u003e\n\u003ch3\u003eTechnical 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\u003eRER 103 MM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eABB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCountry of Origin\u003c\/td\u003e\n\u003ctd\u003eFinland\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions (W x H x D)\u003c\/td\u003e\n\u003ctd\u003e35 mm x 73 mm x 20 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e-40 deg C to +70 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Supply\u003c\/td\u003e\n\u003ctd\u003e5 VDC (from host device)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e0.4 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Data Transmission Rate\u003c\/td\u003e\n\u003ctd\u003e1.25 Mbps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupported Topologies\u003c\/td\u003e\n\u003ctd\u003eLoop, Star\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003cp\u003eFrequently Asked Questions\u003c\/p\u003e\n\u003cp\u003eQ: What is the primary function of the RER 103 MM module? A: It converts optical signals from SPA, LON, or IEC 60870-5-103 buses into electrical RS-485 signals for compatibility with RE500 series equipment.\u003c\/p\u003e\n\u003cp\u003eQ: How is the module powered during operation? A: It receives 5 VDC power directly from the host device and consumes approximately 0.4 W of power.\u003c\/p\u003e\n\u003cp\u003eQ: What bus configurations are supported by the unit? A: The module supports both loop and star topology configurations for flexible system design.\u003c\/p\u003e","brand":"ABB","offers":[{"title":"Default Title","offer_id":51309433422136,"sku":"RER103-MM","price":200.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0893\/1616\/3896\/files\/RER103-MM1.jpg?v=1762240399","url":"https:\/\/www.automodulexpert.com\/products\/bus-connection-module-abb-rer103-mm","provider":"AutoModuleXpert Ltd.","version":"1.0","type":"link"}