GE IS200EISBH1AAB Mark VI Fiber Optic Communication Board

The GE IS200EISBH1AAB, also cataloged as the EISBH1A Fiber Optic Communication Board, operates as a dedicated hardware component for high-speed ISBus data exchange within GE Mark VI platforms. This board interfaces EX2100 exciter control modules directly with system operator stations and central control racks over noise-immune optical links. Supporting both simplex and triple modular redundant (TMR) architectures, the unit transfers real-time analog and digital telemetry while executing high-resolution timestamping across all active control loops.

Hardware Specifications

Deterministic Network Execution and Bus Velocity

The module relies on deterministic backplane bus communication velocity to pass critical exciter status bits without transmission lag or packet loss. Onboard optical transceivers provide galvanic isolation against electrical surges, allowing high-speed data transmission across noisy generator enclosures. Firmware flash compatibility maintains alignment across TMR processor sets, ensuring identical network frame execution and lock-step synchronization between redundant exciter channels.

Frequently Asked Questions

Q: How does the IS200EISBH1AAB handle communication in a Triple Modular Redundant (TMR) setup?

A: In TMR configurations, three distinct EISBH1A cards run parallel optical channels to three separate control processors, maintaining deterministic voting logic and seamless fault tolerance without signal interruption.

Q: What power draw does this board place on the Mark VI control rack backplane?

A: The card draws power directly from the 24 VDC rack power supply rail, consuming roughly 12 W during active optical data routing.

Q: Are special cleaning tools required when servicing the fiber optic ports on this board?

A: Technicians must clean all optical transceivers and cable terminations using lint-free optic wipes and pure isopropyl alcohol prior to mating to prevent signal attenuation from dust or oil contamination.

Field Installation Guidelines

First, turn off all power to the Mark VI rack slot before inserting or removing the card to prevent electrical arcing across sensitive optical transceiver circuits. Carefully align the circuit board with the upper and lower card guides inside the standard relay rack, then slide the unit inward until the rear pins click firmly into the backplane receptacle. Secure the card by tightening the top and bottom captive screws on the front panel to achieve a solid earth ground connection.

Inspect all fiber optic cable ends for contamination or scratches before plugging them into the board's optical ports. Maintain a minimum bend radius of 30 mm along the fiber run to prevent micro-bending signal losses or glass core fracturing. Run all optical lines separately from high-voltage motor or field cables, and ensure all technicians wear a grounded ESD wrist strap throughout the installation procedure.