Description

IS200TDBSH6A Discrete‑I/O Terminal Board

Technical Specifications

• Product Model: IS200TDBSH6A
• Brand: GE Vernova
• Warranty: One Year
• Input Voltage: Field‑contact‑sense 24‑125 VDC; relay‑drive 125 VDC
• Operating Temperature: ‑40 °C ~ +70 °C
• Storage Temperature: ‑40 °C ~ +85 °C
• Response Time: Passive signal‑termination hardware
• Protection Class: IP20 rack‑mount terminal‑board PCB
• Accuracy Class: Passive field‑wiring termination hardware
• Output Frequency: Not applicable
• Rated Current: Per‑relay‑circuit limited by system fuse protection
• Function: TDBS discrete‑I/O field‑wiring termination board for Mark VIe PDIO subsystem; interfaces field discrete inputs and relay‑output contacts with WROB processor boards
• System Compatibility: GE Mark VIe PDIO discrete‑I/O rack; compatible with IS200WROBH1A
• Termination: Screw‑terminal field‑wiring connectors; multi‑pin backplane inter‑board connectors
• Humidity: 5‑95 % RH, non‑condensing
• Weight: 0.72 kg
• Dimensions: Standard Mark VIe terminal‑board footprint
• 

Product Overview

IS200TDBSH6A is a field‑wiring terminal‑board assembly for Mark VIe PDIO discrete‑I/O racks. It serves as physical interface between field‑wired discrete‑input contacts, relay‑output field‑devices and the IS200WROBH1A relay‑sensing processor boards inside the control rack. It is widely used for turbine emergency‑trip interlocks, auxiliary‑equipment status feedback and solenoid‑valve relay‑drive signal routing. This termination board is a critical spare component for repairing legacy Mark VIe discrete‑I/O racks. Available as refurbished and surplus tested PCB assemblies for power‑plant‑control‑system maintenance workshops.

Application Notes

‑ Ensure all field‑wiring power is de‑energised before working on terminal‑board screw terminals. ‑ Check backplane inter‑board connector seating after board swap‑out. ‑ Follow Mark VIe system wiring‑diagram for trip‑circuit interlock configuration. ‑ Typical deployment: power‑plant Mark VIe discrete‑I/O terminal‑board spare‑part stocking.