GE D20-EME2 10BASE‑T Ethernet Module (Ref: D20-EME210BASE-T) – Reliable TCP/IP Networking for D20 Substation RTUs

The GE D20-EME2 10BASE‑T module brings TCP/IP networking to the D20/D200 RTU platform, giving legacy substations a stable, utility‑grade Ethernet interface without overhauling the whole rack. From my experience, it’s the go‑to card when you need a straightforward RJ45 port for SCADA connectivity—typically used for DNP3 over TCP/IP, engineering access, and routine maintenance services like Telnet/FTP on existing fleets. You might notice that many operators install a second EME2 for network redundancy; it’s a simple way to increase availability with minimal change risk.

Company’s Order Placement Process and Guarantees

• Warranty: 365 days
• Lead time: 1 week if in stock; no more than 1 month at the latest
• Payment: 50% advance payment; full payment before delivery
• Express options: FedEx, UPS, DHL

Key Features

• 10BASE‑T (RJ45) Ethernet port – Stable 10 Mbps link for SCADA and engineering access; ideal for brownfield substations.
• Drop‑in for GE D20/D200 – Plug‑in card installs into the D20 chassis; no external power wiring required.
• Utility protocols – Commonly deployed with DNP3/TCP; other stacks depend on the D20 CPU application and firmware.
• Ruggedized operating range – Built for substation environments, typically supporting wide temperature and EMI resilience.
• Front access & diagnostics – RJ45 and link/activity LEDs make commissioning faster in cramped relay rooms.
• Redundancy ready – Many sites fit dual EME2 cards for primary/backup networks or separate operations/engineering VLANs.
• Long lifecycle support – Suits fleets where a like‑for‑like spare is preferred over a full RTU migration.

Technical Specifications

Note: Minor differences may exist by hardware/firmware revision; we can match your installed base if you share the RTU BOM or a photo of the card label.

Application Fields

• Substation automation and SCADA backhaul (transmission and distribution)
• Feeder automation RTUs where Ethernet connectivity is required to EMS/DMS
• Hydro and small generation sites standardizing DNP3/TCP on legacy D20 racks
• Utility test benches and spares programs maintaining protocol parity across sites

A maintenance lead told us, “Swapping in an EME2 took under an hour door‑to‑door; the RTU came up on the network with our existing IP plan, no surprises.”

Advantages & Value

• Lower risk than a platform change – Keep your D20 logic and I/O intact; only the comms card changes.
• Fleet compatibility – Works within typical D20/D200 architectures; straightforward for technicians already trained on D20.
• Cost control – Avoids engineering rework and site outages tied to RTU replacement; easier spares strategy.
• Service support – We help verify firmware revisions and protocol needs so it behaves like your existing units.

Installation & Maintenance

• Cabinet & environment: Install in a GE D20/D200 chassis within a clean, dry, ventilated cabinet (per IEC substation practices). Avoid condensation; allow airflow.
• ESD and handling: Power down the RTU, follow ESD precautions, and seat the card firmly in the designated slot.
• Wiring: Use shielded Cat5e/6 patch leads; maintain proper earthing and avoid running Ethernet parallel to high‑noise conductors.
• Network setup: Assign IP addressing and routes in the D20 configuration tools. Many sites use separate VLANs for SCADA and engineering.
• Redundancy: For higher availability, consider two EME2 cards with diverse switches/paths.
• Maintenance: No calibration required; periodically check link LEDs, clean connectors, and back up configuration. Firmware updates should follow your utility change‑control process.

Quality & Certifications

• Certifications: Typically CE and UL/cUL for substation control equipment (verify on the card label for your specific revision).
• EMC/Immunity: Designed for substation environments; commonly aligned with IEC 61000 series practices.
• Warranty: 12 months (365 days) from delivery.

Complementary/Supporting Components

• D20 CPU modules (to host application and protocol stacks)
• D20-P power supply modules for the chassis
• D20 serial and I/O cards if you’re expanding the RTU alongside Ethernet
• Industrial media converters if you need fiber uplinks while retaining the EME2’s 10BASE‑T port

If you can share your current D20 rack photo or a list of installed module part numbers, we’ll match the EME2 hardware/firmware revision so it drops into service with minimal reconfiguration.