Description
GE D20EME 0526-21170-1 Ethernet Memory Expansion Module Product Description
Product Overview
GE D20EME 0526-21170-1 is an Ethernet Memory Expansion (EME) module designed for the GE D20/D200 substation automation Remote Terminal Unit (RTU) platform. As an important expansion component in the GE D20 automation architecture, GE D20EME 0526-21170-1 integrates Ethernet communication capability and memory expansion functions, enhancing the processing capacity, communication flexibility, and data management capability of D20/D200 systems. The module is primarily used to improve RTU performance in applications requiring reliable SCADA communication, large-scale data acquisition, and advanced substation automation functions. GE documentation identifies the D20EME family as an Ethernet/Memory Expansion module consisting of an EME main board, optional memory expansion card, media interface card, and interconnect components.
The GE D20EME 0526-21170-1 provides an effective solution for upgrading and maintaining existing GE D20/D200 installations. By adding Ethernet connectivity and enhanced memory resources, the module enables improved communication with control centers, engineering workstations, and other automation devices. The module supports the transition from traditional serial-based RTU communication architectures toward modern Ethernet-based substation automation networks while maintaining compatibility with existing GE control platforms.
As part of the GE Multilin D20 product family, GE D20EME 0526-21170-1 plays a critical role in electrical utility automation, power distribution monitoring, and industrial SCADA applications. Its modular structure allows convenient installation within existing D20/D200 systems, helping operators extend equipment lifecycle, improve system performance, and reduce the cost associated with complete automation platform replacement. The D20/D200 platform is widely recognized for reliable substation data acquisition, remote monitoring, and distributed control applications.
Technical Specifications
| Parameter Name | Parameter Value |
|---|---|
| Product Model | D20EME 0526-21170-1 |
| Manufacturer | GE Grid Solutions (General Electric) |
| Product Type | Ethernet Memory Expansion Module |
| Product Series | GE D20 / D200 RTU System |
| Module Function | Ethernet communication expansion and memory enhancement |
| Architecture | D20EME modular expansion architecture |
| Communication Interface | Ethernet interface (10BASE-T / compatible media options) |
| Network Standard | IEEE 802.3 Ethernet |
| Memory Function | Global memory expansion capability |
| Application Platform | GE D20/D200 Substation Controller |
| Installation Method | D20/D200 chassis module installation |
| Interface Type | Internal system connector / expansion interface |
| Communication Support | SCADA and RTU communication applications |
| Operating Temperature | Industrial environment range |
| Diagnostic Function | Module status monitoring and communication diagnostics |
| Application Field | Substation automation and industrial control |
Main Features and Advantages
Enhanced Ethernet communication capability:
The major advantage of GE D20EME 0526-21170-1 is its ability to expand communication capabilities of GE D20/D200 RTU systems. By introducing Ethernet connectivity, the module enables faster and more flexible communication with SCADA servers, control centers, engineering stations, and industrial networks. This helps utilities modernize existing automation infrastructures without replacing the entire RTU system.
Expanded memory and data handling performance:
GE D20EME 0526-21170-1 improves the storage and processing capability of D20/D200 platforms by providing additional memory expansion functionality. This allows the RTU system to manage larger amounts of configuration data, event records, communication information, and operational parameters required in modern automation environments.
Optimized for substation automation:
Designed specifically for GE D20/D200 systems, GE D20EME 0526-21170-1 provides a reliable interface solution for power automation applications. It supports stable data exchange between field devices, intelligent electronic devices (IEDs), and supervisory control systems, improving operational visibility and control efficiency.
D20EME 0526-21170-1
Flexible system upgrade solution:
Many utilities continue operating GE D20/D200 systems because of their proven reliability and long service life. GE D20EME 0526-21170-1 provides a practical upgrade path by adding Ethernet and memory capabilities while preserving existing hardware investment and engineering configuration.
Modular and maintainable design:
The modular architecture of GE D20EME 0526-21170-1 simplifies installation, replacement, and troubleshooting. Maintenance engineers can upgrade system functions through individual module replacement rather than performing extensive control system modifications.
Reliable industrial operation:
Built for demanding utility and industrial environments, GE D20EME 0526-21170-1 supports continuous operation where communication reliability and system availability are essential. Its industrial-grade design helps maintain stable performance in substations and critical infrastructure applications.
Application Areas
Electrical Substation Automation:
GE D20EME 0526-21170-1 is widely used in transmission and distribution substations to enhance D20/D200 RTU communication and data processing capability. It supports the collection, storage, and transmission of information from breakers, transformers, protection relays, and field monitoring devices.
SCADA Communication Systems:
In utility automation networks, GE D20EME 0526-21170-1 provides an important communication interface between RTU equipment and supervisory systems. It enables reliable exchange of alarms, measurements, status information, and control commands with remote control centers.
Power Grid Monitoring Applications:
Modern electrical grids require advanced communication and data processing capabilities. GE D20EME 0526-21170-1 helps improve grid monitoring performance by supporting enhanced RTU communication and system data management.
Industrial Energy Automation:
Large industrial facilities with internal power distribution systems can use GE D20EME 0526-21170-1 to integrate electrical monitoring equipment into centralized automation networks, improving operational efficiency and equipment visibility.
Legacy D20/D200 System Modernization:
For existing GE D20/D200 installations, GE D20EME 0526-21170-1 provides a cost-effective modernization solution. It allows users to add Ethernet communication and expanded memory functions while extending the operational life of installed automation systems.
Related Products
- GE D20ME 526-2005-216943 – Main processor module for D20/D200 RTU systems, working together with D20EME 0526-21170-1 for enhanced processing and communication functions.
- GE D20ME 526-2004 – Non-VME processor module used in D20 automation systems.
- GE D20MX – Modern substation controller platform and migration solution for D20 systems.
- GE D20S – Digital status input module for collecting breaker and equipment status signals.
- GE D20A – Analog input module for monitoring voltage, current, and process measurements.
- GE D20MIC10BASE-T 820-0756 – Ethernet communication interface module for D20 network expansion.
- GE D200 – Substation automation platform compatible with D20EME expansion modules.
- GE D400 Gateway – Advanced substation automation gateway supporting modern communication architectures.
