Description
Product Introduction
The IS200EISBH1AAA is an Exciter ISBus Board from General Electric. It belongs to the EX2100 Series and Mark VI Speedtronic system.
This board handles communication between M1, M2, and C controllers. It uses fiber optic signals for reliable data transfer.
It also connects to the DSPX controller via the backplane. For redundant exciters, it supports GE’s proprietary ISBus interface.
You can use it in gas turbines, steam turbines, and excitation control systems.
Common applications include:
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Generator field DC voltage input from EDCF board
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Generator field DC current input from EDCF board
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Exciter voltage input (optional)
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Exciter current input (optional)
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Ground detector voltage input and output
Key benefits:
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Fast 3-7 day repair available
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In stock for immediate shipment
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Works with GE EX2100 and Mark VI systems
For inquiries, contact us via WhatsApp:
+86 158 8020 0923
Technical Specifications
Brand: General Electric
Model: IS200EISBH1AAA
Series: EX2100 / Mark VI Speedtronic
Product Type: Exciter ISBus Board
Country of Origin: United States
Electrical & I/O:
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Number of channels: 12
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Input span: 4-20 mA
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Analog output current: 0-20 mA
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Common mode voltage range: ±5 V
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Maximum lead resistance: 15Ω
Fiber optic connectors on front panel: 6 ports
Environmental & physical:
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Operating temperature: -30 to 65 °C
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Size: 8.26 cm high x 4.19 cm deep
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Form factor: 3U high, single-slot
Compatibility:
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Backwards-compatible with first two revisions
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Total of 3 revisions available
Manual reference: GEI-100454
Measurement & Performance Characteristics
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Input span (current): 4-20 mA
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Output range: 0-20 mA analog
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Common mode voltage range: ±5 V
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Linearity: Designed for high accuracy in excitation control
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Resolution: Not specified by GE; typical ISBus ensures stable data
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Frequency response: Optimized for DC and low-frequency field signals
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Sensitivity: Responds to small changes in generator field current
Environmental Tolerance & Noise Immunity
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Temperature range: -30°C to 65°C (operating)
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Humidity tolerance: Standard industrial control rack environment
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抗干扰能力 (Noise immunity): Fiber optic links eliminate electrical noise
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ISBus interface: GE proprietary, designed for noisy excitation yards
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Conformal coating: Protects PCB from dust and moisture
Installation Guide
Step-by-step placement:
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Locate the control rack under the DSPX controller
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Insert the IS200EISBH1AAA into a single 3U slot
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Secure using the four factory-drilled corner holes
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Connect fiber optic cables to the front panel ports
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Attach the backplane connector for DSPX communication
Important notes:
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Use only GE-approved EDCF boards for signal input
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Keep lead resistance below 15Ω for 4-20 mA loops
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Do not exceed ±5V common mode voltage
Debugging & Maintenance Convenience
Front panel access:
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Reset switch available through faceplate opening
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Six fiber optic ports clearly labeled
Diagnostic capability:
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Monitors generator field DC voltage and current
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Monitors exciter voltage and current (optional)
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Tracks ground detector voltage input and output
Maintenance tips:
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Clean fiber optic connectors regularly
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Check backplane connection if communication fails
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Use manual GEI-100454 for fault codes
Compatibility Information
Controller compatibility:
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M1 controller
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M2 controller
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C controller
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DSPX board in each controller
System compatibility:
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GE EX2100 Excitation Control Series
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GE Mark VI Speedtronic Turbine Control
Board interchangeability:
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Replaces earlier IS200EISBH revisions
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Works with 3300 XL 11 mm Proximity Probes for additional monitoring
Not compatible with:
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Mark V or older Speedtronic systems
Certifications & Standards
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Manufacturer: General Electric (USA)
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Design standard: GE EX2100 series specification
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PCB coating: Conformal coating for protection
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RoHS status: Not specified by GE – check manual GEI-100454
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ISBus: GE proprietary communication protocol
Packaging & Delivery
Package includes:
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1 x IS200EISBH1AAA Exciter ISBus Board
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Anti-static packaging
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No cables or fiber optics included
Shipping carriers:
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FedEx
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UPS
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DHL
Same-day shipping for orders placed before 3 PM.
Repair service: 3-7 days turnaround.
Warranty – 12 Months
We provide a 12-month warranty against manufacturing defects.
Warranty covers:
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Repair or replacement of defective board
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Defects in materials or workmanship
Warranty does not cover:
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Damage from incorrect installation
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Overvoltage or physical damage
Contact us immediately if failure occurs within warranty period.
Typical Application Scenarios
Scenario 1 – Generator field control
Use the board to read DC voltage and current from the EDCF board. Send data to DSPX for field regulation.
Scenario 2 – Redundant excitation system
Install two EISB boards for backup communication between M1, M2, and C controllers.
Scenario 3 – Ground detection monitoring
Connect ground detector module to front panel ports. Monitor insulation health in real time.
Scenario 4 – Turbine retrofit
Replace older IS200EISB revisions with IS200EISBH1AAA for improved reliability.
Diagnostic Capabilities
Real-time monitoring:
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Generator field DC voltage
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Generator field DC current
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Exciter voltage (optional)
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Exciter current (optional)
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Ground detector voltage input
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Ground detector voltage output
Fault indication:
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Loss of fiber optic signal
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Backplane communication error
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ISBus timeout
Use manual GEI-100454 for full diagnostic codes.
FAQ – Frequently Asked Questions
What is the main function of IS200EISBH1AAA
It is a communication board between M1, M2, C controllers and the DSPX.
Which systems is this board compatible with
GE EX2100 and Mark VI Speedtronic systems.
Does this board work with 3300 XL 11 mm Proximity Probes
Yes, it supports additional monitoring via those probes.
What is the maximum lead resistance for input
15Ω maximum for 4-20 mA loops.
How many fiber optic ports does it have
Six ports on the front panel.
What is the operating temperature range
-30°C to 65°C.
Can I use this board in a redundant exciter setup
Yes, it contains ISBus interface electronics for redundancy.
Is the board coated for harsh environments
Yes, conformal coating protects the PCB.
How do I reset the board
Use the reset switch accessible through the front faceplate opening.
What manual covers this board
GEI-100454.
Experience-Based FAQ
We often see fiber optic signal loss. What should we check first
Clean the connectors and check for bent cables. Then verify the EDCF board output.
The board passes power-on self-test but no ISBus communication
Check backplane seating. Also verify the DSPX board is functional.
Can I mix this H1 revision with older A or B revisions
Yes, it is backwards-compatible with the first two revisions.
Does this board require special firmware
No, it works with standard EX2100 firmware.
What is the most common failure mode
Dirty fiber optic ports or loose backplane connection.
Selection Guide – How to Choose the Right EISB Board
Choose IS200EISBH1AAA if:
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You need the latest revision (H1) with three revisions total
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Your system uses GE EX2100 or Mark VI
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You require fiber optic isolation for noise immunity
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You run redundant exciters (ISBus interface needed)
Choose older IS200EISBH (first or second revision) if:
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Your system has compatibility restrictions
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You do not need the H1 improvements
Do not choose this board if:
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Your system is Mark V or older
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You need analog outputs other than 0-20 mA
For help selecting, contact us on WhatsApp: +86 158 8020 0923
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