GE Mark VI IS200TPROH1BBB Protective Termination Board

GE IS200TPROH1BBB Protective Termination Board

The GE IS200TPROH1BBB, also cataloged as the IS200TPROH1BBB protective termination board, serves as the primary TPRO module used to execute conditioned termination of protection‑related turbine signals across Mark VI Speedtronic platforms.

Hardware Specifications

Profinet / EtherNet/IP Deterministic Networks

As part of GE’s Mark VI control architecture, the IS200TPROH1BBB aligns with deterministic backplane timing for turbine protection signals. The board’s termination layout supports stable propagation delay when interfacing with protection processors, ensuring predictable routing of trip‑related inputs. Firmware flash compatibility resides entirely in upstream I/O packs; the TPRO board contains no programmable logic. I/O density scaling is achieved through fixed hardware design, including MOV arrays for surge suppression, resistor banks for signal conditioning, and diode networks for protection‑path isolation.

Frequently Asked Questions

Q: Does the IS200TPROH1BBB support hot‑swap replacement? A: No. The board must be replaced only with cabinet power isolated to avoid unintended trip‑signal transitions.

Q: Are there any configurable jumpers on the board? A: No. The board is fully fixed‑configuration and relies on upstream processor settings.

Q: How many wiring points are available? A: Two terminal blocks provide a total of 96 terminals supporting 48 signal pairs.

Field Installation Guidelines

• Maintain strict wiring discipline on all protection‑related terminations.
• Ensure barrier‑type terminal blocks are fully seated before energizing the system.
• Keep wiring isolated from high‑energy conductors to reduce surge coupling.
• Verify proper seating of all board‑edge connectors to maintain stable communication with protection processors.
• Follow GE installation manuals for grounding, torque values, and cabinet layout requirements.
• Inspect MOV arrays and diode networks during maintenance for signs of overstress.