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Configured for high-speed data routing and discrete contact execution in Mark VI turbine control system platforms, the GE IS200REBFH1BBA (IS200REBF Ethernet Interface Board) provides direct physical/electrical execution. The module manages determinism across network links via dual redundant Ethernet interfaces while accommodating local dry-contact execution through 16 Form C relay output channels. Onboard diagnostic LEDs deliver real-time feedback for power rail stability, port link integrity, and active packet transactions.

Hardware Specifications

Parameter Specification
Model IS200REBFH1BBA
Brand General Electric
Origin USA
Weight 0.3 kg (0.66 lbs)
Dimensions 15.24 cm x 10.16 cm x 2.54 cm
Operating Temp -40 to 70 deg C
Power Consumption 24 VDC nominal
Series Mark VI
Product Type Ethernet Interface Boards
Storage Temp -40 to 85 deg C
Operating Humidity 5% to 95% RH, non-condensing
Interface Ports Dual redundant Ethernet ports
Relay Outputs 16 Form C relay outputs
Network Protocols Ethernet, TCP/IP, UDP
Visual Diagnostics LED indicators for power, activity, and link status

Backplane Bus Communication and Deterministic Processing

The IS200REBFH1BBA optimizes backplane bus communication velocity across the Mark VI control rack by offloading protocol processing directly at the interface module layer. Through native execution of TCP/IP and UDP packet framing over dual redundant Ethernet channels, the module isolates external network traffic from core executive scan cycles. This distributed communication handling ensures firm firmware flash compatibility across Mark VI node revisions while maintaining precise I/O density scaling for Form C relay output commands.

Frequently Asked Questions

Q: How does the dual redundant Ethernet port architecture operate on the IS200REBFH1BBA?

A: The board provides two isolated physical Ethernet interface channels that execute simultaneous network data exchange using TCP/IP or UDP, maintaining link availability if one network path fails.

Q: What contact output configuration is supported by the onboard relays?

A: The module contains 16 Form C relay outputs, offering single-pole double-throw (SPDT) dry-contact switching for discrete field device control.

Q: What are the input voltage requirements for powering the IS200REBFH1BBA board?

A: The module operates from a nominal 24 VDC power supply bus routed through the rack structure or dedicated power header.

Field Installation Guidelines

  • ESD Protection: Always wear a wrist strap grounded to the enclosure frame when handling the module to protect sensitive integrated circuits from electrostatic discharge.
  • Network Cabling and Shielding: Connect Category 5e or higher shielded twisted-pair (STP) cables to the dual Ethernet ports, ensuring cable shields terminate to panel chassis ground to suppress high-frequency noise.
  • Relay Output Terminal Connections: Torque field wiring securely to Form C output terminals according to standard panel specifications, ensuring proper gauge selection to handle load current without heating.
  • Thermal Envelope Maintenance: Maintain clear clearance around the module faceplate to ensure convection cooling within the operating range of -40 to 70 deg C.

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