Description
Product Introduction
The GE IS200FOSBH1A is a Mark VIe series fiber optic hub module that provides centralized connectivity and distribution for fiber optic networks in Mark VIe control systems. This I/O pack enables hub functionality for fiber optic networks, providing centralized connection points for fiber optic devices.
The H1A revision provides fiber optic hub capability with specific hardware configuration. In our field experience, the FOSB provides essential hub functionality for fiber optic connectivity. For facilities requiring fiber optic hub capability, the FOSB provides the necessary solution.
Key Technical Specifications
| Parameter | Value |
|---|---|
| Model Number | IS200FOSBH1A |
| Series | Mark VIe IS200 |
| Hardware Revision | H1A |
| Function | Fiber optic hub, network distribution |
| Diagnostics | Hub status 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, 260 mA typical |
| Bus Interface | VME-based high-speed parallel bus |
| Firmware | Verify compatibility with ToolboxST/ToolboxEX versions ≥6.0 |
| LED Indicators | Module power, status, fault |
Key Selling Points & Differentiators
- Fiber optic hub – provides centralized connectivity and distribution for fiber networks.
- Specific hardware configuration – unique hub features for demanding applications.
- Rigorous 48-hour burn-in – each unit runs under hub 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 IS200FOSBH1A into a running Mark VIe system?
We strongly advise against it. The FOSBH1A 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 FOSA and FOSB modules?
The FOSA is a fiber optic adapter module providing conversion between electrical and fiber signals. The FOSB is a fiber optic hub module providing centralized connectivity for fiber networks.
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 145,000 hours for the FOSBH1A. We have seen these units exceed 15 years in field service.

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