Product Overview
In high-stakes turbine control environments, network reliability is non-negotiable. The GE IS420ESWBH3A is an Ethernet IONet Switch engineered by General Electric for the Mark VIe series, delivering the deterministic performance your control system demands. This industrial automation module provides 16 copper ports (10/100Base-TX RJ-45) and operates without fiber ports, simplifying integration in existing copper-based IONet architectures.
Designed for real-time industrial control, the IS420ESWBH3A buffers multicast and broadcast packets efficiently, ensuring smooth data flow even under heavy load. Its redundant power supply inputs enhance system uptime, while the compact DIN-rail mounting saves valuable cabinet space.
Technical Specifications
| Parameter |
Value |
| Part Number |
IS420ESWBH3A |
| Manufacturer |
General Electric |
| Series |
Mark VIe |
| Product Type |
Ethernet IONet Switch |
| Copper Ports |
16 ports 10/100Base-TX (RJ-45) |
| Fiber Ports |
None |
| Compatibility |
IEEE 802.3, 802.3u, 802.3x |
| Auto-negotiation |
10/100 base copper, full/half duplex |
| Uplink Port |
100 Mbps FX (copper) |
| Auto-sensing |
HP-MDIX |
| LED Indicators |
Link, Activity, Duplex, Speed per port; power |
| Buffer & MAC Addresses |
Minimum 256 KB buffer, 4 K MAC addresses |
| Power Requirements |
+32 V dc to 18 V dc (24/28 VDC nominal) |
| Redundant Power Inputs |
Yes |
| Memory |
256 MB DDR SDRAM |
| Operating System |
QNX Neutrino |
| Software |
ControlST V04.03.18C |
| Relative Humidity |
5% to 95% non-condensing |
| Operating Temperature |
-40 to 70°C |
| Cooling Method |
Convection cooled |
| Mounting |
DIN-rail or panel mount |
| Dimensions |
138 x 86 x 56 mm (H 18.8 cm x W 8.6 cm x D 5.6 cm) |
| Weight |
2 lbs |
| Country of Manufacture |
United States |
Key Features & Benefits
-
16 copper ports with auto-negotiation for flexible network design.
-
Redundant power inputs ensure continuous operation during power source switching.
-
DIN-rail mounting simplifies installation in control cabinets.
-
LED diagnostics provide at-a-glance link, activity, duplex, and speed status per port.
-
IEEE 802.3 compliance guarantees interoperability with standard Ethernet equipment.
Industry Applications
The GE IS420ESWBH3A is purpose-built for GE Distributed Gas Turbine Control Systems, making it an essential component in power generation plants. It is also deployed in:
- Wind turbine control assemblies
- Steam turbine control systems
- Gas turbine automated drive assemblies
Its robust design and real-time performance make it suitable for any Mark VIe or VIeS safety control system requiring a reliable IONet switch.
Installation & Setup Guidance
Mount the IS420ESWBH3A on a standard DIN rail either parallel or perpendicular to the rail. For DIN-rail mounting, use clips 259B2451BVP1 and 259B2451BVP4 (sold separately). Alternatively, panel mounting is possible when needed. Connect copper cables using Cat 5e UTP with RJ45 connectors. Ensure the switch receives the correct DC power (24/28 VDC) and that the redundant inputs are wired to separate power sources for maximum uptime.
Maintenance & Reliability
With convection cooling and no moving parts, the GE IS420ESWBH3A requires minimal maintenance. Periodically inspect the unit for dust accumulation and verify that the LEDs indicate proper link status. Operating within the specified temperature and humidity ranges (-40 to 70°C, 5-95% non-condensing) will extend service life. The QNX Neutrino OS and 256 MB DDR SDRAM ensure stable performance under sustained loads.
Compatibility & Integration
This switch is fully compatible with the Mark VIe and VIeS control systems, and its IEEE 802.3/802.3u/802.3x compliance allows integration with standard Ethernet networks. It supports 10/100 Mbps copper connections and auto-negotiation for full/half duplex, ensuring seamless communication with existing IONet devices.
Selection Guide & Purchasing Advice
Before purchasing, verify that your control system uses the Mark VIe IONet architecture and that copper connectivity suffices (no fiber ports). Confirm power supply voltage (24/28 VDC) and available DIN-rail space. For genuine, factory-packed units with a 12-month warranty, consider PLC Source PRO as a trusted supplier.