GE IS420ESWBH1A Industrial Switch

GE IS420ESWBH1A (Mark VIe System IONet Industrial Switch)
Commonly known as: General Control Module/Network Switch
Brand/Series: GE (General Electric), Mark VIe (Speedtronic Gas Turbine Control System)
Type: 16 port IONet industrial Ethernet switch, used for high-speed, deterministic communication within GE turbine/power generation DCS systems.

Model: IS420ESWBH1A
port
16×10/100Base‑TX（RJ45）
1 × 100Base FX multimode fiber (LC)
Protocol: IONet (GE specific industrial Ethernet), compatible with Mark VIe/VIeS
Power supply: 24-28 VDC, redundant dual power input
Temperature: -40 ° C~+70 ° C, IP20
Size (approximately): 162 × 115 × 72 mm
System: QNX real-time system, ToolboxST configuration
📌 Function and Purpose
Core positioning: Mark VIe system backbone switch, connecting controllers, I/O modules, gateways HMI。
Redundancy support: Supports * * simplex/duplex/TMR (triple redundancy) * * controller network architecture.
Application scenarios: Gas turbine, steam turbine, generator control, power/oil and gas/large industrial DCS.