Description

Product Description

The IS200EISBH1A with associated assembly number IS200EISBH1AAA is a GE EX2100 Exciter ISBus Board used in the excitation control portion of the Mark VI platform. The EISB functions as a communication interface for the M1, M2, and C controllers, handling fiber-optic feedback signals and transferring information through the control backplane to the DSPX controller. It also supports communication between the DSPX and tool/keypad ports through RS-232C. The board is a single-slot, 3U-high module installed in the control rack beneath the DSPX controller and provides six front-panel fiber-optic connections for generator-field, exciter, and ground-detection signals.

Product Datasheet

Specification	Details
Brand	General Electric (GE)
Model	IS200EISBH1A
Assembly Number	IS200EISBH1AAA
Product Name	Exciter ISBus Board
Functional Acronym	EISB
Series	EX2100 / Mark VI
Product Type	Excitation Communication Interface Board
Interfaced Controllers	M1, M2, C
Communication	GE ISBus / Fiber-Optic
Fiber-Optic Connectors	6
Serial Interface	RS-232C
Board Format	Single-slot, 3U
Mounting Location	EX2100 Control Rack, beneath DSPX
Backplane Interface	Control backplane connector
Power Supply	+5 VDC, approximately 1.5 A
ISBus Interface	1 Mbit/s
Operating Temperature	Approx. -40°C to +70°C
Country of Origin	USA
Product Status	Legacy / Obsolete Platform
Condition	Verify actual item condition

Functional Features

• Designed for GE EX2100 excitation control systems.
• Provides ISBus communication between the M1, M2, and C controller sections.
• Communicates with DSPX controller boards through the control backplane.
• Receives and transmits fiber-optic feedback signals.
• Six front-panel fiber-optic connections support generator-field, exciter, and ground-detection signal paths in applicable configurations.
• Provides RS-232C communication between DSPX and tool/keypad interfaces.
• Single-slot 3U board format for installation in the applicable GE control rack.
• Includes a front-panel reset switch and multiple onboard communication/interface components.
• The H1 revision is part of the GE IS200EISB hardware revision family; the complete assembly number should be matched before replacement.

FAQ

Q1: What is the IS200EISBH1A used for?
It is an Exciter ISBus communication board used in GE EX2100 excitation control systems to interface the M1, M2, and C controllers and transfer feedback information through the control architecture.

Q2: What is the difference between IS200EISBH1A and IS200EISBH1AAA?
IS200EISBH1A is the functional/base board designation, while IS200EISBH1AAA is the complete assembly/ordering number commonly used to identify the specific board.

Q3: How many fiber-optic connectors does the board have?
The board is documented with six front-panel fiber-optic connectors for applicable generator-field, exciter, and ground-detection signal paths.

Q4: Which controllers communicate through the EISB?
The EISB is associated with the M1, M2, and C controller sections of the EX2100 excitation system.

Q5: Is IS200EISBH1A compatible with every Mark VI rack?
No. It is specifically associated with the EX2100 excitation-control architecture. Verify the rack position, complete part number, hardware revision, fiber connections, and system configuration before installation.

Troubleshooting & Safety

Before replacement, record the existing board’s fiber-optic connections and connector positions. Confirm that the replacement part number and revision match the installed board. Inspect fiber connectors for contamination, damaged ferrules, or loose connections, and avoid sharply bending fiber-optic cables. Power down and isolate the excitation system according to the applicable maintenance procedure before removing the board. Excitation equipment can contain hazardous electrical energy and stored energy even after normal shutdown. Do not remove or install the board while energized unless the specific GE system documentation explicitly permits the procedure. After installation, verify controller communication, fiber-optic links, diagnostics, and system configuration before returning the excitation system to service.

Recommended GE Models

1. IS200EISBH1AAA | Exciter ISBus Board
2. IS200EISBH1AAB | Exciter ISBus Board
3. IS200EISBH1ACB | Exciter ISBus Board
4. IS200DSPXH1CAA | DSPX Control Board
5. IS200DSPXH1B | DSPX Controller Board
6. IS200EDCFH1A | Exciter DC Feedback Board
7. IS200EDCFH1AAB | Exciter DC Feedback Board
8. IS200EGDMH1A | Exciter Ground Detector Module
9. IS200EGDMH1AAB | Exciter Ground Detector Module
10. IS200EXAMG1A | Exciter Attenuator Module
11. IS200EXAMG1AAB | Exciter Attenuator Board
12. IS200CABPG1BAA | Control Rack Backplane Board
13. IS200ISBBG1AAB | ISBus Interface Board
14. IS200ECTBG1A | Exciter Contact Terminal Board
15. IS200TBAIH1B | Analog Terminal Board

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