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The GE DS200TBQCG1A, also cataloged as the DS200TBQC Analog Input Milliamp I/O Termination Module, operates as a dedicated hardware component for milliamp signal termination and position feedback routing within Speedtronic Mark V Turbine Control System platforms.

Hardware Specifications

Parameter Specification
Model DS200TBQCG1A
Brand GE (General Electric)
Origin USA
Weight Standard PCB footprint
Dimensions Standard Mark V terminal board profile
Operating Temp 0 to 60 deg C
Power Consumption System backplane driven
Functional Acronym TBQC
Product Type RST Analog Termination Board
Terminal Blocks 2 blocks (TB1, TB2; 83 terminals per block)
Signal Capacity 166 signal wire connections total
Hardware Jumpers 15 jumpers (labeled BJ1 through BJ17)
Primary Connectors 3 40-pin connectors, 3 34-pin connectors
Dedicated Signal Connectors JBR (TCQA Board I/O), JFR (TCQA Board LVDT/R Position)
Unused/Vestigial Connectors JBS/T, JFS/T, TEST
PCB Coating Normal Coating
Functional Revision Group 1, Revision A

Backplane Bus Communication Velocity & I/O Density Scaling

The DS200TBQCG1A expands system I/O density scaling across 166 individual terminal points split between blocks TB1 and TB2, interfacing high-density field milliamp inputs directly to the RST control cores. Discrete signals for position feedback, such as LVDT/R inputs, and general I/O streams are multiplexed through 40-pin and 34-pin ribbon headers (including JBR and JFR) to the TCQA processor board. Configured via 15 hardware jumpers (BJ1 to BJ17), signal lines maintain high backplane bus communication velocity across deterministic Mark V internal networks while preserving firmware flash compatibility.

Frequently Asked Questions

Q: What function do the JBR and JFR ribbon connectors serve on the DS200TBQCG1A?

A: Connector JBR routes input and output signals to the TCQA board, while connector JFR routes Linear Variable Differential Transformer (LVDT/R) position feedback signals directly to the TCQA processor.

Q: Are the JBS/T, JFS/T, and TEST connectors required for standard module operation?

A: No, connectors JBS/T, JFS/T, and TEST serve as vestigial connectors that remain unused during standard operation of the DS200TBQCG1A module.

Field Installation Guidelines

  1. De-energize all main supply lines and field power sources feeding the Mark V cabinet prior to installing or servicing the board.
  2. Verify zero-energy state across all terminal points on blocks TB1 and TB2 using a calibrated multi-meter.
  3. Wear a grounded anti-static wrist strap throughout board handling to protect semiconductor components from electrostatic discharge (ESD).
  4. Tag each signal wire with its corresponding terminal block ID (TB1 or TB2) and numerical terminal ID (1 to 83) prior to disconnecting existing wiring.
  5. Secure field wiring into the 166 screw terminals, verify jumper positions BJ1 through BJ17 against system drawings, and fully seat all multi-pin ribbon cables before restoring power.

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