Description
Product Parameters
- Model Number: D20 EME (Ethernet Media Exchange)
- Part Number: Often associated with the D20 / D200 Substation Controller series
- Interface: 10BASE-T (RJ45 Ethernet)
- Network Speed: 10 Mbps
- Communication Protocol: Supports DNP3 over TCP/UDP, Modbus TCP, and Harris 5000/6000 over IP
- Connector: Standard RJ45 for twisted-pair copper cabling
- Isolation: 1500 Vrms (Per IEEE 802.3 standards)
Product Description The GE D20 EME 10BASE-T is a communication interface module designed for the GE D20 and D200 Substation Controllers. This module provides a migration path for legacy serial-based RTUs (Remote Terminal Units) to modern Ethernet networks. By adding the EME module, the D20 controller can communicate with the Master Station or SCADA system using high-speed Internet Protocol (IP) connections rather than traditional RS-232/RS-485 serial links. The 10BASE-T version is specifically designed for standard copper wiring environments, allowing the RTU to integrate seamlessly into industrial Ethernet switches within the substation.
GE D20 EME 10BASE-T
GE D20 EME 10BASE-T
GE D20 EME 10BASE-T
Application Areas This module is a critical component for Substation Automation and Power Grid Management. It is used to:
- SCADA Connectivity: Providing a primary or redundant link between the RTU and the control center.
- Network Modernization: Upgrading legacy D20 installations to support TCP/IP networking without replacing the entire chassis.
- Remote Maintenance: Enabling authorized personnel to access the D20 configuration and diagnostic logs via a secure Ethernet connection.
Product Specifications
- Weight: 0.25 kg
- Dimensions: Standard D20 “half-height” module profile
- Operating Temperature: -40°C to +70°C (-40°F to 158°F)
- Humidity: 5% to 95% Non-condensing
- Storage Temperature: -40°C to +85°C
Operational Precautions
- Cable Selection: Use high-quality Category 5 (Cat5) or better shielded twisted-pair (STP) cable. In high-voltage substation environments, electromagnetic interference (EMI) is significant; proper shielding and grounding of the Ethernet cable are essential to prevent data corruption.
- Distance Limitations: Standard 10BASE-T Ethernet is limited to 100 meters (328 ft) per segment. If the distance to the switch exceeds this, an Ethernet repeater or a fiber optic media converter must be used.
- Speed Negotiation: Because this is a fixed 10 Mbps module, ensure that the connected Ethernet switch port is configured for “Auto-negotiation” or is manually set to “10 Mbps / Half-Duplex” or “Full-Duplex” as per the module settings. Mismatched duplex settings are a common cause of slow network performance.
- Firmware: Ensure the D20 Main Processor (D20ME) has the appropriate software drivers and firmware versions to recognize and communicate through the EME module.
Recommended Similar Product Models
| Model Number | Product Category | Feature Set |
|---|---|---|
| D20 EME 10BASE-FL | Ethernet Module | Fiber Optic (ST) connection variant |
| D20ME | Main Processor | Core CPU module for the D20 system |
| D20S | Peripheral Module | RS-232/RS-485 Serial I/O |
| D20A | Analog Input | 16-Channel Analog Input Module |
| D20K | Control Output | 16-Channel Relay Output Module |
