Overview

The GE IS420ESWAH3A Rev C is a rugged industrial Ethernet switch specifically designed for GE Mark VIe and Mark VIeS turbine control systems. Often referred to as an N‑TRON switch, it enables high-speed, deterministic communication over IONet, GE’s proprietary real‑time Ethernet protocol. With refresh cycles as fast as ≤5 ms, IONet delivers up to 10× faster performance than standard Ethernet, ensuring precise synchronization and reliable communication for turbine protection and control.

Built to withstand harsh industrial environments, the IS420ESWAH3A features wide temperature tolerance, redundant communication paths, and advanced timing synchronization. It is widely deployed in industries such as power generation, petrochemical, and heavy industrial facilities where uptime and deterministic networking are mission‑critical.

Technical Data

Typical Applications

• Gas and steam turbine control systems in power plants.

• High-speed real‑time communication for overspeed protection and interlocks.

• Redundant networking in petrochemical and refining facilities.

• Industrial automation networks requiring deterministic Ethernet performance.

FAQ

Q1: What makes the IS420ESWAH3A unique compared to standard Ethernet switches?
A1: It supports GE’s IONet protocol with refresh cycles ≤5 ms and IEEE 1588 PTP synchronization for precise timing.

Q2: How many ports does the switch provide?
A2: It offers 8 copper RJ45 ports and 2 fiber LC ports for redundancy and long‑distance communication.

Q3: Can it operate in harsh environments?
A3: Yes, it is rated for –40 °C to +70 °C, with anti‑corrosion coating and salt spray resistance.

Q4: Is it compatible with GE Mark VIe systems?
A4: Yes, it is specifically designed for Mark VIe and Mark VIeS turbine control systems.

Q5: Why is it sometimes referred to as an N‑TRON switch?
A5: Because it is based on N‑TRON industrial Ethernet technology, adapted for GE’s IONet applications.