Description
🔹 Product Description
The General Electric IS200EROCH1A, with the alternate assembly identification IS200EROCH1ADD, is an Exciter Regulator Options Board used in the GE EX2100 excitation control system. The board provides supporting functions for excitation regulation, including keypad interfacing, ground detection, tool/computer interfacing, and power distribution to associated excitation terminal equipment. In redundant regulator applications, the EROC also supports ISBus communication and redundancy-related signals. It is designed as a double-height 6U Eurocard with P1 and P2 backplane connectors and multiple front-panel interfaces. The board can be installed in compatible EX2100 regulator or excitation backplane configurations, depending on the system architecture.
📋 Product Datasheet
| Parameter | Value |
|---|---|
| Brand | General Electric (GE) |
| Model | IS200EROCH1A |
| Series | Mark VI IS200 / EX2100 |
| Product Name | Exciter Regulator Options Board |
| Place of Manufacture | Salem, Virginia, USA |
| Product Status | Legacy / Surplus |
| Dimensions | Approx. 6U double-height Eurocard format |
| Weight | Approx. 0.5 kg |
| Original Country | United States |
| Power | Backplane supplied |
| Discontinued | Legacy / No longer in current production |
⚙️ Key Features
• Exciter Regulator Options Card, functional acronym EROC
• Designed for GE EX2100 excitation control systems
• Supports GE and third-party field ground detection functions
• Provides keypad interface through the regulator system
• Supports tool/computer communication
• Provides power distribution to the Exciter Contact Terminal Board
• Supports ISBus communication in applicable redundant regulator configurations
• Uses P1 and P2 backplane connectors
• Double-height 6U Eurocard construction
• Compatible with specified EX2100 regulator and static excitation backplane configurations
❓ Common Questions & Answers
Q: What is the IS200EROCH1A?
A: It is a GE Exciter Regulator Options Board used in EX2100 excitation control equipment. The corresponding detailed board identification is IS200EROCH1ADD.
Q: What does EROC stand for?
A: EROC stands for Exciter Regulator Options Card.
Q: What is the main function of this board?
A: The board provides supporting excitation-control functions such as ground detection, keypad communication, tool interface, and power distribution to associated terminal equipment.
Q: Which GE system uses this board?
A: The IS200EROCH1A is associated with the GE EX2100 excitation control system.
Q: Can it support redundant excitation systems?
A: Yes. In applicable redundant regulator configurations, the EROC supports ISBus communication between control sections and redundancy management functions.
Q: What type of board construction is used?
A: It is a double-height 6U Eurocard-style board with 96-pin P1 and P2 backplane connectors.
Q: Where is the board installed?
A: Depending on the EX2100 configuration, it can be installed in compatible regulator or excitation backplanes such as ERBP, ERRB, ESBP, or EPBP.
Q: Is IS200EROCH1A the same as IS200EROCH1ADD?
A: IS200EROCH1A identifies the base board assembly, while IS200EROCH1ADD is the more complete board identification including its revision/configuration suffixes. The complete part number should be checked before ordering or replacement.
Q: Is this board suitable as a direct replacement?
A: Replacement should be based on the complete part number, excitation system configuration, backplane type, and revision requirements. All characters in the GE part number should be verified before installation.
⭐ Recommended GE Models
- IS200ERIOH1ACB — Exciter Regulator I/O Board
- IS200ERBP — Exciter Regulator Backplane Board
- IS200ERRB — Exciter Regulator Redundant Backplane
- IS200ESBPG1ABA — Exciter Simplex Backplane Board
- IS200ESBP — Exciter Simplex Backplane
- IS200EPBP — Exciter Power Backplane
- IS200EXAMG1ABB — Exciter Attenuator Module
- IS200EXAMG1BAA — Exciter Attenuation Module
- IS200EXHSG1 — High-Speed Static Exciter Terminal Board
- IS200EXHSG1ACB — High-Speed Static Exciter Board
- IS200EXHSG1AEB — Exciter High-Speed Relay Board
- IS200EXCSG1ABA — Conduction Sensor Board
- IS200ESELH1AAA — Exciter Collector Board
- IS200DSPXH1B — Digital Signal Processor Board
- IS200EGDMH1A — Exciter Gate Driver Module



