Description
Product Introduction
The GE IS200EHFCH2ACB is a Mark VIe series Ethernet interface module that provides 4 ports of network connectivity for Mark VIe control systems. This I/O pack enables high-speed data exchange with operator HMIs, plant DCS networks, and other control devices with specific hardware configuration.
The ACB suffix denotes a specific hardware configuration with unique network features and diagnostic characteristics. In our field experience, the EHFC provides essential network connectivity for Mark VIe turbine control systems. For facilities requiring reliable network connectivity, the EHFC provides the necessary interface solution.
Key Technical Specifications
| Parameter | Value |
|---|---|
| Model Number | IS200EHFCH2ACB |
| Series | Mark VIe IS200 |
| Hardware Revision | ACB (specific hardware configuration) |
| Ethernet Ports | 4 x 10/100 Ethernet (RJ45) |
| Protocols | Modbus/TCP, Ethernet/IP, OPC |
| Network Redundancy | Dual-redundant network support |
| Diagnostics | Link status monitoring, network activity monitoring |
| Isolation | 500 V DC port-to-backplane |
| Operating Temperature | −30°C to +65°C (ambient, with 0.5 m/s airflow) |
| Power Supply | 24 V DC from backplane, 250 mA typical |
| Bus Interface | VME-based high-speed parallel bus |
| Firmware | Verify compatibility with ToolboxST/ToolboxEX versions ≥6.0 |
| LED Indicators | Module power, link status per port, activity, fault |
Key Selling Points & Differentiators
- Ethernet interface – provides 4-port network connectivity for control systems.
- Specific hardware configuration – unique network features for demanding applications.
- Rigorous 48-hour burn-in – each unit runs with all ports under network load across temperature cycling.
- 3-year warranty on hardware – backed by our in-house repair depot with average 48-hour turnaround.
Frequently Asked Questions (FAQ)
Can I hot-swap this IS200EHFCH2ACB into a running Mark VIe system?
We strongly advise against it. The EHFCH2ACB has shown unpredictable behavior when inserted into a powered backplane. Schedule a controlled outage, de-energize the rack, and swap it during planned maintenance.
What is the difference between the EHFC and EACF modules?
The EHFC is an Ethernet interface module with 4 ports. The EACF is also an Ethernet communication module. Differences vary by specific hardware configuration. Verify your system requirements before ordering.
What protocols does this module support?
The EHFC supports Modbus/TCP, Ethernet/IP, and OPC protocols. Specific protocol support varies by firmware version.
How do I verify this is a genuine GE module?
We source exclusively from GE-authorized liquidations. Our verification includes OEM packaging inspection, serial number cross-check against GE records, and PCB inspection for GE-specific markings.
What is the expected lifespan of this unit?
We see MTBF around 135,000 hours for the ACB revision. We have seen these units exceed 15 years in field service.

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