{"product_id":"ge-multilin-ur-7hh-universal-relay-communications-module","title":"Module de communication pour relais universel GE Multilin UR-7HH","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eUR-7HH (UR-7HH)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis a safety-critical, high-speed Communications Module custom-developed by General Electric for the Multilin\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eUR Series\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e(Universal Relays) power protection framework. Engineered to deliver stable inter-relay data transmission across distributed grids, this module provides dual-channel fiber optic interfaces operating at a nominal 820 nm multi-mode LED spectrum. High-capacity electrical infrastructure operations—including substation automation blocks, thermal power generation utilities, and complex petrochemical distribution facilities—rely on the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eUR-7HH (UR-7HH)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eto manage real-time protection telemetry and synchronization loops. By incorporating multi-protocol Ethernet stacks and real-time process bus support, the unit guarantees sub-millisecond line differential coordination and trip signaling. This deterministic network structure eliminates packet latency under peak traffic, shields upstream protection logic from substation electromagnetic noise, and prevents unprogrammed plant outages.\u003c\/p\u003e\n\u003ch3\u003eSubsystem Topography \u0026amp; Protocol Capabilities\u003c\/h3\u003e\n\u003cp\u003eThe hardware architecture, network integration matrices, and firmware attributes of the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eUR-7HH\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ecommunications processor define its operational profile within modern utility grids.\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDual-Channel Optical Infrastructure:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eFeatures two independent 820 nm multi-mode LED fiber optic links designed for short-to-medium distance peer-to-peer relay communications, maximizing transmission speeds while balancing fiber setup infrastructure costs.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eTriple-Port Ethernet Matrix:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eOutfitted with three physical Ethernet interfaces dedicated to managing high-volume data traffic, establishing network infrastructure routing, and reducing diagnostic communication dropouts under peak data bursts.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSubstation Protocol Stack:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eRuns native, concurrent processing for advanced utility communication structures, incorporating IEC 61850 rules, DNP 3.0, Modbus TCP\/IP, and IEC 60870-5-104 standards for smooth industrial bus deployment.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDeterministic Synchrophasor Interface:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eIntegrates full capability parameters for IEEE C37.118 synchrophasor streaming directly over the core Ethernet backplane, empowering control centers with continuous, phase-angle power grid calculations.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003ctd\u003e\u003cstrong\u003eProtection Metric\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eFactory System Specification\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eModel Designation\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eUR-7HH\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eBrand Manufacturer\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eGE Multilin (General Electric)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eControl System Line\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eUR Series Universal Relays\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eModule Classification\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eInter-Relay Communications Card (COMMS)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eOptical Configuration\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e2 Channels, 820 nm Wavelength, Multi-Mode LED\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eIntegrated Communication Ports\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e3 Ethernet Infrastructure Interfaces\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eEmbedded Bus Protocols\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eIEC 61850, DNP 3.0, Modbus TCP\/IP, IEC 60870-5-104\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eDynamic Grid Mapping\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eIEEE C37.118 Synchrophasor Streaming\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eConfiguration Software\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eEnerVista UR Configuration Utility\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003ePhysical Card Size\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e15 cm L x 18 cm W x 4 cm H\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eHardware Shipping Weight\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1.16 kg (2 lb, 9 oz)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eOperating Temperature Window\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e-40 to +60 deg C Ambient Range\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eManufacturing Origin\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eMarkham, Ontario, Canada\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eSubstation Grid \u0026amp; Network Diagnostic FAQs\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eHow do engineers actively evaluate channel health and data trends for the UR-7HH card?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eReal-time diagnostic metrics can be observed passively via the front faceplate status indicators on the host Universal Relay panel. For comprehensive diagnostics, engineers connect via the network to Multilin EnerVista UR software, which features a streamlined monitoring interface used to trend link attenuation, verify packet transmission, and export communication error logs.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat specific trade-offs must engineering teams evaluate when deploying the multi-mode LED 820 nm channel on the UR-7HH?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe UR-7HH utilizes 820 nm multi-mode LED architecture, which provides an exceptionally cost-effective alternative to single-mode laser boards for localized localized links. However, multi-mode fiber structures experience higher signal attenuation (dB loss per kilometer) and light scattering over long distances. System layout technicians must verify that total cable run lengths do not exceed the attenuation budgets defined in the GE Multilin UR series manuals.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs it necessary to clear down power to the host Universal Relay rack when swapping or inserting a UR-7HH board?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. To protect the internal logic registers, CPU components, and adjacent CT\/VT measuring modules from inductive transient damage, you must completely isolate utility power from the universal relay chassis before pulling or seating the communications module.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eEngineering \u0026amp; Installation Guide\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eOptical Fiber Cleanliness and Connection Protocols:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBefore mating multi-mode fiber optic cables to the 820 nm transceiver ports on the UR-7HH faceplate, clean the optical cable ferrule ends using an isopropyl alcohol wipe or dedicated optical fiber cleaning tool. Dust particles or skin oils deposited onto the transceiver window increase channel attenuation, causing intermittent frame loss, packet dropouts, and synchronization alarms within the IEC 61850 data bus.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eFiber Bending Radii and Mechanical Stress Management:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eRoute all multi-mode fiber optic cable bundles away from sharp internal enclosure edges and high-voltage AC terminal strips. Maintain a minimum permanent structural bending radius of 5 cm along the fiber path. Excessive mechanical pulling tension or tight bends strain the internal glass core, leading to micro-cracks that permanently degrade optical performance and disrupt inter-relay communication.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eModule Retention Security and Earth Grounding:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSlide the UR-7HH module into its assigned chassis slot along the integrated guide rails until the faceplate connector matches the rear backplane interface. Securely tighten the module's exterior retention screws to a maximum torque profile of 0.6 N-m (5.3 inch-lbs). Proper mechanical seating ensures complete logic bus integration and establishes low-resistance earth grounding via the metal chassis frame to reject high-frequency substation EMI.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"General Electric","offers":[{"title":"Default Title","offer_id":52695407690091,"sku":"UR-7HH","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/general-electric-ur7hh-multilin-comms-module-saxaj2ennjy_ef66bedc-677c-47c9-8d22-2b069e4afc70.jpg?v=1766134946","url":"https:\/\/www.plcprotech.com\/fr\/products\/ge-multilin-ur-7hh-universal-relay-communications-module","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}