Description
- Brand: GE / GE Grid Solutions
- Full Model Number: 2400-21004 / 2010-3101-0442
- System/Series Family: GE WESDAC D20 RTU
- One-Sentence Core Function: D20 EME processor and communications module for real-time data acquisition, control logic, and SCADA communications
- Top 3 Hardcore Specs: D20 EME platform; multiple serial and Ethernet communications; VME-based D20 RTU architecture
- Stock Status: New surplus / fully tested refurbished, subject to exact hardware revision
The most consistent identification in current technical references is GE D20 EME 2400-21004, where EME refers to the central processing and Ethernet/communications function within the WESDAC D20 RTU platform. The available sources associate the module with real-time data acquisition, control processing, and external communications.
Important identification note: current indexed sources reliably connect 2400-21004 with D20 EME, but I could not independently verify 2010-3101-0442 from a GE primary document. Treat that second identifier as an additional assembly or build reference unless the physical nameplate or GE documentation confirms its exact relationship to 2400-21004.
Module 3: Commercial-Technical Deep Dive
A D20 RTU processor failure can interrupt an entire substation data path even when the downstream I/O modules remain operational. The GE D20 EME 2400-21004 serves as the processing and communications core of a D20 system, handling control logic, data acquisition, and communications with external SCADA or automation equipment. Current technical references describe a 32-bit RISC processor, multiple serial interfaces, Ethernet connectivity, and protocol support including DNP3, Modbus, IEC 60870-5-101/104, and GE proprietary communications.
The maintenance value is concentrated in communications continuity. One D20 EME can sit at the center of a distributed substation architecture, so an exact hardware replacement can avoid a much larger RTU migration project. Current technical listings describe the D20 platform as VME-based and indicate substantial volatile and nonvolatile memory for program and data storage. The exact processor, memory population, serial-port configuration, and network implementation should be verified against the installed revision rather than inferred from the base 2400-21004 number.
GE 2400-21004 2010-3101-0442
Module 4: Compatibility & Installation Traps
Migration/Compatibility
- Replacement type: GE WESDAC D20 EME processor and communications module
- Primary model: D20 EME 2400-21004
- Additional identifier supplied: 2010-3101-0442
- Firmware flash: Potentially required, depending on the installed application image, firmware revision, and retained configuration
- Logic rewrite: Normally not required for an identical hardware replacement when the original D20 application is available
- Drop-in status: Potentially direct within a compatible D20 chassis, subject to hardware revision, firmware, memory configuration, communication ports, and application image
- System architecture: GE WESDAC D20 RTU / VME-based control architecture
⚠️ Field Traps (Watch Out)
1. Verify the complete physical identification.
The D20 family contains multiple processors, communication modules, and I/O assemblies. A D20-related part number is not enough to establish interchangeability. Photograph the nameplate, PCB labels, firmware information, and connector layout before removal.
2. Preserve the application and communications configuration.
The EME module is a processing and communications element, so replacement can affect RTU logic, IP settings, serial-port assignments, protocol configuration, and retained data. Back up the running configuration before disconnecting the original unit.
3. Do not rely on the second number without physical confirmation.
I found consistent references for 2400-21004 / D20 EME, but not a reliable GE primary source tying 2010-3101-0442 to that exact D20 EME model. For purchasing, keep both identifiers in the inquiry and request a photo of the actual nameplate when exact-revision matching is required.
4. Check the installed protocol stack.
A replacement processor may boot correctly while still failing to communicate with the substation because the application image or port configuration does not match the original system. Verify DNP3, Modbus, IEC 60870-5-101/104, or other site-specific protocol settings before commissioning.
Module 5: Quality Assurance SOP
Each GE D20 EME 2400-21004 unit should pass a documented pre-shipment inspection sequence:
- OEM anti-counterfeit visual inspection: Verify GE identification, D20 EME designation, 2400-21004, supplied secondary identification, PCB markings, connector arrangement, and manufacturing labels.
- Exact part-number verification: Compare the physical nameplate with the purchase order and installed D20 RTU BOM.
- Secondary identifier verification: Record 2010-3101-0442 separately and do not assume its meaning without confirming the physical assembly marking.
- Mechanical inspection: Check VME connectors, front-panel connectors, Ethernet interfaces, serial interfaces, mounting hardware, PCB surfaces, and battery-backed components for damage or corrosion.
- Power-on self-test (POST): Install the module in an approved D20 test chassis and verify normal startup, processor initialization, memory detection, and diagnostic status.
- Memory verification: Confirm successful access to the installed volatile and nonvolatile memory resources and check for memory-related diagnostic faults.
- Communication handshake verification: Test representative Ethernet and serial communications with a compatible D20 test environment.
- Protocol verification: Where the test rack permits, validate representative DNP3, Modbus, or IEC communication sessions against the configured application.
- Application/configuration check: Verify that the test image loads correctly and that the module retains configuration after a controlled power cycle.
- Final QC: Photograph all identification markings, record POST and communication results, protect connectors with ESD-safe packaging, and retain the inspection record.
Module 6: CRO-Driven Buyer FAQ
1. What is GE 2400-21004?
The most consistently documented identification is GE D20 EME 2400-21004, a processor and communications module for the WESDAC D20 RTU. It performs central processing, data acquisition, and external communications functions within the D20 architecture.
2. What does the 2010-3101-0442 number mean?
I could not independently verify that identifier from a GE primary source. It may be an assembly, build, or internal hardware reference associated with the supplied unit. For an exact-match purchase, the physical label should be checked against the full GE documentation or an existing system BOM before substitution.
3. Can the D20 EME be hot-swapped?
Do not assume hot-swap capability. Replacement should follow the applicable D20 RTU maintenance procedure, with the chassis and connected circuits placed in the appropriate maintenance state before removing the processor/communications module.
4. What communications does the D20 EME support?
Current technical references describe multiple serial and Ethernet interfaces, with protocol support including DNP3, Modbus RTU/TCP, IEC 60870-5-101/104, and GE proprietary protocols. The actual available ports and active protocols depend on the installed hardware and application configuration.
5. What warranty and technical support are provided?
Warranty duration should be stated on the quotation for the exact inventory condition supplied. Technical support should cover part-number verification, hardware-revision review, configuration assessment, POST results, communication testing, and replacement guidance within the documented D20 RTU architecture. Application redevelopment, SCADA engineering, field wiring, and live substation commissioning remain the responsibility of qualified personnel.
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