{"product_id":"general-electric-multilin-ur7hh-communications-module","title":"General Electric Multilin UR7HH Inter-Relay Communications Module","description":"\u003cp\u003eThe General Electric UR7HH is a high-performance inter-relay communications module designed for the Universal Relay (UR) series. This horizontal unit facilitates robust data exchange between protection relays, utilizing multi-mode fiber optic technology to ensure reliable communication in demanding industrial environments.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eTwo independent, full-duplex communication channels.\u003c\/li\u003e\n\u003cli\u003e820 nm multi-mode fiber optic interface for long-distance, noise-immune connectivity.\u003c\/li\u003e\n\u003cli\u003eStandard ST-type fiber optic connectors for secure physical termination.\u003c\/li\u003e\n\u003cli\u003eOptical galvanic isolation rated at 2 kV to protect internal circuitry from ground loops and electrical surges.\u003c\/li\u003e\n\u003cli\u003eWide operating temperature range suitable for harsh substation environments.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003ctable border=\"1\"\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Model\u003c\/td\u003e\n\u003ctd\u003eUR7HH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Family\u003c\/td\u003e\n\u003ctd\u003eUniversal Relay (UR) Series\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication Channels\u003c\/td\u003e\n\u003ctd\u003e2 Independent Full-Duplex\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFiber Type\u003c\/td\u003e\n\u003ctd\u003eMulti-mode (62.5\/125 µm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWavelength\u003c\/td\u003e\n\u003ctd\u003e820 nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnector Type\u003c\/td\u003e\n\u003ctd\u003eST Standard\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eData Rate\u003c\/td\u003e\n\u003ctd\u003e64 kbps to 512 kbps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation\u003c\/td\u003e\n\u003ctd\u003e2 kV Optical Galvanic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBack-plane Supply\u003c\/td\u003e\n\u003ctd\u003e+5 V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e-40 degC to +85 degC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage Temperature\u003c\/td\u003e\n\u003ctd\u003e-55 degC to +95 degC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHumidity\u003c\/td\u003e\n\u003ctd\u003e5% to 95% RH (non-condensing)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eEnsure the UR relay is powered down before inserting or removing the UR7HH module from the back-plane.\u003c\/li\u003e\n\u003cli\u003eHandle the module by the edges to avoid electrostatic discharge (ESD) damage to sensitive internal components.\u003c\/li\u003e\n\u003cli\u003eEnsure fiber optic cables are routed with appropriate bend radii to prevent signal attenuation or fiber breakage.\u003c\/li\u003e\n\u003cli\u003eVerify that ST connectors are clean and properly seated before locking them into the module ports.\u003c\/li\u003e\n\u003cli\u003eThe module is designed for horizontal mounting within the UR chassis; ensure the mounting screws are tightened to maintain proper grounding and structural integrity.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003ch3\u003eWhat type of fiber optic cable is compatible with the UR7HH?\u003c\/h3\u003e\u003cp\u003eThe module is designed for 62.5\/125 µm multi-mode fiber optic cables using standard ST connectors.\u003c\/p\u003e\u003ch3\u003eDoes this module require external power?\u003c\/h3\u003e\u003cp\u003eNo, the UR7HH draws its required +5 V DC power directly from the Universal Relay back-plane.\u003c\/p\u003e\u003ch3\u003eWhat is the primary application for this module?\u003c\/h3\u003e\u003cp\u003eThis module is primarily used for inter-relay communication, allowing protection relays to share data for schemes such as differential protection or interlocking in power distribution systems.\u003c\/p\u003e","brand":"General Electric","offers":[{"title":"Default Title","offer_id":50957121487100,"sku":"UR7HH","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/9983\/1292\/files\/wm_1_1100a183-c779-4f14-a897-89d7151e2290.jpg?v=1786329021","url":"https:\/\/www.electronicplc.com\/ar\/products\/general-electric-multilin-ur7hh-communications-module","provider":"Electronic PLC","version":"1.0","type":"link"}