GE IS200EISBH1AAA Exciter ISBus Board for Mark VI Control

June 15, 2026 • 2 min read • wayne • BLOG

The IS200EISBH1AAA Exciter ISBus Board acts as the communication hub for your GE Mark VI system. This board reliably connects the M1, M2, and C controllers.

Product Procurement & Buyer Guide

Procurement managers need a board that matches the exact system revision. The IS200EISBH1AAA uses the "H1" revision code. This code ensures full backward compatibility with the first two previous revisions.

This board solves a critical pain point for turbine control. It provides a dedicated communication path for the DSPX controller. The board transmits fiber-optic feedback signals over the control backplane.

The part number itself provides key technical details. The "IS200" prefix confirms its Mark VI Series assembly. The "EISB" acronym identifies it as an Exciter ISBus Board.

The conformal coating type is also coded in the number. This protective layer shields the board from moisture and contaminants. Application engineers can trust this board for harsh environments.

The board uses a single-slot 3U-high form factor for easy rack mounting. It sits in the control rack directly under the DSPX module. This placement optimizes signal routing and minimizes cable length.

The front panel features six fiber-optic connectors for signal management. These connectors handle generator field voltage and current inputs. The board also manages ground detection signals.

For redundant exciter configurations, the board includes ISBus interface electronics. ISBus is a GE proprietary communications interface. It transfers data among the M1, M2, and C controllers.

Our team ensures your in-stock order ships the same day. Please order before 3 pm for immediate shipment. We carefully pack every purchase for excellent condition upon delivery.