GE Mark VI IS200VROCH1BBR Relay Output Digital Output Module
Product Description
The GE IS200VROCH1BBR (Part Number: IS200VROCH1BBR) is a high-density Relay Output Board (VROC) designed for the Mark VI Speedtronic turbine control system. This module serves as the primary interface for discrete control commands, providing 32 channels of electromechanical relay outputs. The IS200VROCH1BBR is engineered to drive field-level equipment such as solenoids, motor starters, and interposing relays, offering reliable "dry contact" switching to isolate sensitive control logic from high-power field circuits.
As an integral component of the Mark VI VME-rack architecture, the IS200VROCH1BBR supports both simplex and TMR (Triple Modular Redundant) configurations. It receives digital commands from the control processor and converts them into physical contact closures. Each output channel is equipped with localized hardware diagnostics and front-panel LED indicators, allowing maintenance personnel to verify output status and circuit integrity at a glance. This "BBR" revision denotes a specific hardware profile with optimized component layouts for enhanced thermal stability in utility-scale power generation environments.
Technical Specifications
Hardware parameters and operational standards for the IS200VROCH1BBR:
| Parameter | Specification Details |
| Model Number | IS200VROCH1BBR |
| Manufacturer | General Electric (GE) |
| Series Compatibility | Mark VI Speedtronic System |
| Board Type | Relay Output / Digital Output (VROC) |
| Number of Channels | 32 Electromechanical Relay Outputs |
| Contact Type | Dry Contacts (Form-A typical) |
| Output Function | Discrete switching of solenoids, contactors, actuators |
| Diagnostic Tools | 32 Individual Status LEDs; Board health monitoring |
| Dimensions | 160 mm × 120 mm × 35 mm |
| Weight | 0.75 kg (Shipping Weight) |
| Operating Temp | -20 °C to +60 °C (-4 °F to 140 °F) |
| PCB Coating | Standard Industrial Grade |
| Backplane Interface | VME Rack Compatible |
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