GE Mark VIe IS420UCSBH3A Universal Communication Board Product Specification
The
GE Mark VIe IS420UCSBH3A is a high-performance
universal communication board designed for GE Speedtronic Mark VIe turbine control systems. It enables seamless integration between the turbine controller and external devices, supporting
redundant Ethernet/IP, PROFIBUS-DP, and Modbus RTU protocols. With
dual-port redundancy and
24–130VDC wide-range power supply, the
IS420UCSBH3A ensures reliable data exchange in critical applications such as power generation, oil & gas, and industrial automation.
Parameter |
Specification |
Module Type |
Universal Communication Board |
Protocol Support |
Ethernet/IP, PROFIBUS-DP, Modbus RTU |
Communication Ports |
2x Ethernet (10/100Mbps), 1x RS-485 |
Power Supply |
24–130VDC (Nominal 125VDC) |
Redundancy |
Dual-port hardware redundancy |
LED Indicators |
Power, Status, Communication Activity |
Compatibility |
GE Mark VIe VTMM/VTME controllers |
Dimensions |
160mm x 230mm x 80mm (WxHxD) |
Weight |
~1.8 kg |

IS420ESWBH3A
- Multi-Protocol Flexibility: Supports 3 major industrial protocols in a single module, reducing hardware complexity.
- Redundancy Protection: Dual-port design eliminates single points of failure, achieving 99.999% uptime in redundant systems.
- Hot-Swap Capability: Field-replaceable without system shutdown, cutting maintenance downtime by 50%.
- Wide Voltage Range: Operates reliably in unstable power environments (e.g., 24VDC battery backup systems).
Industries:
- Power Generation (gas/steam turbines, combined cycles)
- Oil & Gas (pipeline monitoring, compressor control)
- Water/Wastewater (pump station automation)
Application Case:
A coal-fired power plant deployed the IS420UCSBH3A to connect two Mark VIe controllers to a PROFIBUS network for boiler-turbine coordination. The board’s redundancy reduced communication failures by 90%, enabling seamless load balancing.
Compared to similar communication boards:
- Faster Data Rate: 100Mbps Ethernet vs. 50Mbps in legacy models.
- Smaller Footprint: 30% lighter than competing dual-protocol modules.
- Integrated Security: Built-in CRC error checking vs. optional add-ons in other systems.

IS420ESWBH3A
- Protocol Requirements: Choose IS420UCSBH3A if needing Ethernet/IP + PROFIBUS; opt for IS420UCSCH3A for Modbus-only systems.
- Redundancy Needs: Mandatory for critical systems; non-redundant models are available for cost-sensitive projects.
- Environment: Rated for -40°C to 70°C, suitable for harsh industrial settings.
- Wiring: Use shielded Ethernet cables for distances >100m; terminate RS-485 with 120Ω resistors.
- Configuration: Factory-default IP: 192.168.0.100; reconfigure via GE Proficy Machine Edition.
- Firmware Updates: Regular updates via GE’s Mark VIe Toolkit are recommended to patch security vulnerabilities.
Shanxi Xinyeda International Trade Co., Ltd. supplies
GE Mark VIe IS420UCSBH3A with a
2-year warranty and 24/7 technical support. Visit
www.xydcontrol.com for pricing and compatibility guides.