The GE IS200EISBH1A, abbreviated as the EISB, acts as a centralized communication hub within the excitation control rack. This board manages the critical transmission and reception of fiber-optic feedback signals, which it then forwards via the control backplane to the DSPX controller. Beyond fiber-optics, the EISB facilitates essential serial communication between the DSPX and external tool or keypad ports using the RS-232C protocol. In redundant exciter configurations, the board utilizes the proprietary GE ISBus interface to synchronize data across the M1, M2, and C controllers, ensuring system-wide coordination.
The front panel of the IS200EISBH1A features six dedicated fiber-optic connectors designed to handle high-speed variable frequency signals. These connectors receive voltage and current data from the generator field via EDCF boards. Specifically, the board monitors the DC voltage and current from the Generator Field and can optionally process inputs from the Exciter itself. Furthermore, the EISB provides a bidirectional link to the Ground Detection module (EGDM), sending and receiving voltage signals to ensure the electrical integrity of the excitation circuit. Consequently, the hardware eliminates electrical noise interference by using light-based transmission for sensitive feedback data.
The GE IS200EISBH1A is a compact, single-slot module with a 3U-high form factor. The system locates this board in the control rack directly beneath the DSPX controller for efficient backplane routing. Its robust design supports an wide operating temperature range from -30 to 65 °C, making it suitable for demanding industrial environments. The board also features six front-panel indicators that correspond to the generator field, exciter signals, and ground detection status. Therefore, the board provides both high-speed data processing and immediate visual diagnostics for the drive administrator.
The IS200EISBH1A is engineered for precision, featuring a Common Mode Voltage Range of ±5 V and support for standard 4-20 mA input spans.
| Feature | Specification |
| Functional Acronym | EISB |
| Form Factor | 3U High, Single Slot |
| Fiber-Optic Ports | 6 Connectors (TX/RX) |
| Serial Interface | RS-232C (Tool/Keypad Port) |
| Analog Output | 0-20 mA |
| Input Span | 4-20 mA |
| Maximum Lead Resistance | 15Ω |
| Mounting | Control Rack under DSPX |
First, ensure the excitation control rack is fully de-energized. Slide the IS200EISBH1A into its designated single slot beneath the DSPX module, ensuring the backplane connector is firmly seated. Next, connect the fiber-optic cables to the six front-panel ports, following the specific labeling for generator field and ground detection inputs. After that, connect the RS-232C cable to the tool port if local keypad access is required. Furthermore, verify that the fiber-optic cables do not exceed the recommended bend radius to prevent signal loss. Finally, restore power and monitor the six front-panel indicators to confirm that feedback signals from the EDCF boards are being correctly received and forwarded to the DSPX.
1 x GE IS200EISBH1A Exciter ISBus Board (EISB)
1 x Technical Hardware Summary
1 x Anti-Static Protective Wrap
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Q: What is the primary function of the EISB board?
Specifically, it manages fiber-optic feedback signals from the generator field and facilitates communication between the DSPX and the system's controllers.
Q: Where is this board physically located in the control rack?
The system places the IS200EISBH1A directly in the control rack, situated under the DSPX controller.
Q: How many fiber-optic connectors are on the front panel?
The board features six fiber-optic connectors used for transmitting and receiving variable frequency signals.
Q: What is "ISBus" in the context of this board?
ISBus is a proprietary GE communication interface used to exchange data among the M1, M2, and C controllers in a redundant exciter setup.
Q: Does this board support ground detection?
Yes. It transmits and receives voltage signals to and from the Ground Detection module (EGDM) to monitor system health.
Q: What type of serial communication does the board use for tool ports?
The board uses the RS-232C standard to communicate between the DSPX and the keypad or maintenance tool ports.
| Brand Name | TR Electronic |
| Model No. | IS200EISBH1A |
| Product Type | Exciter ISBus Board (EISB) |
| hasMerchantReturnPolicy | Adjust according to reality |
| Shippingdetails | Adjust according to reality |
