Product Short Description
Product Introduction
The GE D20 EME 10BASE-T is an Ethernet/Memory Expansion module developed by GE Grid Solutions for D20/D200 series remote terminal units (RTUs) and substation controllers. It integrates 10BASE-T Ethernet connectivity (10 Mbps over twisted – pair cable) and memory expansion, converting traditional serial – based RTUs into IP – enabled devices for seamless integration with modern SCADA and industrial networks. The module installs directly into the VME – bus communication slot of D20/D200 chassis, powered by the main CPU module without external power supplies. It comes with a built – in TCP/IP protocol stack, supporting static/DHCP IP addressing and multiple industrial protocols like Modbus TCP, IEC 60870-5-104, and DNP3 over TCP/IP. It also has an integrated web server for remote configuration and monitoring, and can be configured for dual – module redundancy to ensure uninterrupted communication in critical power applications. It meets IEEE 802.3, UL 508, and IEC 61850 standards, offering reliable data exchange for substation automation, distribution monitoring, and energy management systems.
Description
Technical Specifications
| Parameter | Details |
|---|---|
| Brand | GE Grid Solutions (General Electric, formerly GE Digital Energy) |
| Model | D20 EME 10BASE-T |
| Product Type | Ethernet/Memory Expansion Module (for D20/D200 RTU/Substation Controller) |
| Form Factor | VME – bus card (fits D20/D200 chassis communication slot) |
| Ethernet Interface | 10BASE-T (IEEE 802.3), RJ – 45 connector, Cat5/Cat5e twisted – pair cable |
| Data Rate | 10 Mbps (half – duplex, fixed speed, auto – negotiation disabled) |
| Transmission Distance | 100 meters (max over Cat5/Cat5e cable) |
| Supported Protocols | Modbus TCP, IEC 60870-5-104, DNP3 over TCP/IP, FTP, Telnet, HTTP (web server) |
| IP Addressing | Static IP or DHCP – assigned |
| Memory Expansion | 16 MB flash memory, 8 MB RAM (for data logging, firmware storage, protocol stacks) |
| Power Supply | 5 VDC via VME backplane (from main CPU module, no external power needed) |
| Operating Temperature | -40°C to +70°C |
| Storage Temperature | -55°C to +85°C |
| Humidity | 5% – 95% RH (non – condensing) |
| Vibration/Shock | Compliant with IEC 60068-2-6 (vibration) and IEC 60068-2-27 (shock) |
| Certifications | UL 508, IEC 61850, CE, IEEE 802.3 |
| Dimensions | 160 mm × 100 mm × 25 mm (length × width × height, VME – standard) |
| Weight | Approx. 0.35 kg |
| Redundancy Support | Dual – module redundancy (active/standby) for critical applications |
| Connector Type | RJ – 45 (Ethernet); VME – bus edge connector (chassis interface) |
| Firmware Update | FTP/Telnet or web – based firmware upgrades |
Functional Features
- 10BASE-T Ethernet Connectivity: Delivers 10 Mbps data transfer over twisted – pair cables, enabling high – speed data exchange between RTU and SCADA, HMI, or engineering workstations.
- Multi – Protocol Support: Natively runs Modbus TCP, IEC 60870-5-104, and DNP3 over TCP/IP, facilitating integration with global power system protocols.
- Memory Expansion: 16 MB flash and 8 MB RAM provide storage for data logs, event records, and protocol configuration files.
- Integrated Web Server: Allows remote access via web browser to view status, modify network settings, download logs, and perform diagnostics without specialized software.
- Dual – Module Redundancy: Active/standby configuration prevents communication loss during module or network failures in critical substation automation systems.
- Backplane Power Supply: Draws 5 VDC from the VME backplane, eliminating external wiring and power adapters.
- Robust Environmental Rating: Operates from -40°C to +70°C and withstands industrial vibration/shock, suitable for outdoor and harsh indoor installations.
- Secure Network Configuration: Supports password – protected access, IP filtering, and protocol – level security for data integrity.
- Seamless VME Integration: Plugs into D20/D200 chassis communication slots without hardware modifications, ensuring compatibility with existing systems.
- Compliance with Global Standards: Meets IEEE 802.3, IEC 61850, and UL 508, ensuring interoperability in international power projects.
Application Scenarios
- Substation Automation: Connects D20/D200 RTUs to SCADA main stations, enabling real – time monitoring and control of transformers, circuit breakers, and feeders.
- Distribution Grid Monitoring: Transmits data from field RTUs to distribution management systems (DMS) for outage detection, load balancing, and voltage regulation.
- Hydropower Plant Control: Links RTUs with turbine governors, generator controls, and dam monitoring systems for coordinated power generation and grid integration.
- Renewable Energy Integration: Connects wind/solar farm RTUs to grid control centers via IEC 60870-5-104, enabling variable generation monitoring and dispatch.
- Industrial Energy Management: Integrates with building management systems (BMS) to monitor power usage, control loads, and optimize energy efficiency in factories and data centers.
- Railway Power Systems: Connects traction substation RTUs to central control systems for real – time power quality monitoring and fault isolation.
- Oil & Gas Pipeline Monitoring: Transmits flow, pressure, and temperature data from remote pipeline RTUs to SCADA systems via DNP3 over TCP/IP.
- Water/Wastewater Treatment: Links pump station RTUs to central control rooms for process automation and remote equipment management.
- Legacy RTU Modernization: Upgrades serial – based D20/D200 RTUs to IP networks without replacing the entire chassis, reducing upgrade costs and downtime.
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