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GE D20 EME 10BASE-T – Ethernet Media Exchange Module
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Product Introduction
The D20 EME 10BASE-T, manufactured by General Electric (GE Grid Solutions), is an industrial-grade Ethernet communication interface module designed exclusively for the D20/D200 series Remote Terminal Units (RTUs). It upgrades legacy serial-based RTUs into IP-enabled intelligent edge devices, facilitating seamless integration with modern Ethernet networks. The module delivers 10 Mbps twisted-pair (10BASE-T) connectivity, supporting multiple industrial protocols for real-time data exchange between RTUs and SCADA masters, HMIs, or engineering workstations. Engineered for harsh industrial environments, it ensures reliable, low-latency communication in power automation and process control applications.
Technical Specifications
- Manufacturer: General Electric (GE Grid Solutions)
- Model: D20 EME 10BASE-T
- Product Type: Ethernet Communication Interface Module
- Compatibility: D20 / D200 Series RTUs
- Standard: IEEE 802.3 (10BASE-T)
- Data Transfer Rate: 10 Mbps
- Interface: RJ45 (Twisted Pair)
- Max Transmission Distance: 100 meters (per 10BASE-T standard)
- Protocols Supported: Modbus TCP, IEC 60870-5-104, DNP3 over TCP/IP
- Power Supply: 24 VDC (from RTU backplane, no external power needed)
- Power Consumption: ≤ 2 W
- Dimensions (L×W×H): 260 mm × 53 mm × 125 mm
- Weight: 0.7 kg
- Operating Temperature: -40°C to +70°C (-40°F to +158°F)
- Storage Temperature: -55°C to +85°C (-67°F to +185°F)
- Relative Humidity: 5%–95% (non-condensing)
- Vibration Resistance: 2 g (10 Hz–500 Hz)
- Certifications: CE, UL, CSA (industrial safety & EMC compliance)
Key Features
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Legacy-to-Ethernet Connectivity
- Converts traditional serial D20/D200 RTUs into IP-based nodes, preserving existing hardware while enabling modern network communication.
- Facilitates smooth migration from legacy SCADA systems to Ethernet-based architectures.
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- Integrates Modbus TCP, IEC 60870-5-104, and DNP3 over TCP/IP, ensuring interoperability with diverse industrial devices and software.
- Enables standardized data exchange across power and process automation platforms.
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- Compact form factor fits directly into D20/D200 chassis communication slots, requiring no additional hardware.
- Industrial-grade components withstand extreme temperatures, vibration, and electrical noise.
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Integrated TCP/IP Stack & Web Server
- Embedded TCP/IP stack supports static or DHCP IP assignment for flexible network configuration.
- Built-in web server allows remote monitoring, parameter configuration, and log retrieval via a standard browser.
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Low Power & High Reliability
- Draws power from the RTU backplane, eliminating external power supplies and reducing wiring complexity.
- Low power consumption (≤2 W) minimizes heat generation and extends service life.
- LED indicators provide real-time status for power, link, and activity.
Application Scenarios
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Power Generation & Distribution
- Substation Automation: Connects D20 RTUs to SCADA systems for monitoring/control of breakers, transformers, and feeders.
- Hydroelectric Plants: Enables real-time data exchange for turbine control, water level monitoring, and generator synchronization.
- Power Distribution Networks: Facilitates remote monitoring of distribution feeders, capacitor banks, and reclosers.
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- Oil & Gas: Deployed in pipeline monitoring, compressor stations, and refineries for reliable RTU-to-SCADA communication.
- Water/Wastewater: Used in pumping stations and treatment plants to monitor flow, pressure, and water quality parameters.
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Legacy System Modernization
- Upgrades aging D20/D200 RTUs in brownfield sites without full hardware replacement.
- Bridges older GE backplane systems to modern Ethernet networks, protecting existing investments.
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