GE DS200TCQCG1A Analog I/O Expander Board

Overview

The GE DS200TCQCG1A is an Analog I/O Expander Board used in the Mark V Speedtronic Turbine Control System. It extends the system’s analog input and output capacity for the R, S, and T cores. The board scales and conditions current loop signals (4–20 mA), pulse rate inputs, and LVDT/LVDR excitation. It also drives servo valve regulator outputs. It connects with other boards like TCQA and STCA via high-density connectors. This board plays a vital role in precise turbine control and system communication.

Technical Specifications

• Part Number: DS200TCQCG1A

• Series: Mark V Speedtronic

• Function: Analog I/O Expander (RST Overflow Board)

• Functional Acronym: TCQC

• Connectors:

• 3 × 40-pin connectors

• 3 × 34-pin connectors

• Jumpers: 24 hardware jumpers for configuration

• Input Types:

• mA signals (e.g., megawatt transducer)

• Pulse rate inputs (e.g., fuel flow, shaft speed)

• Output Types:

• Servo valve regulator currents (±240 mA max)

• Special Features:

• LVDT/LVDR excitation

• IONET termination support

• RS232 port for diagnostics

• Stall timer and oscillator test jumpers

• PCB Coating: Standard (non-conformal)

• Mounting: Rack-mounted in the Mark V cabinet

• Functional Revision: A

• Weight: 0.80 lbs