GE DS200TBCBG1AAA: Advanced RTD MA Input Terminal Board

DS200TBCBG1AAA Technical Specifications

• Manufacturer: General Electric (GE)

• Product Series: Mark V Speedtronic

• Part Number: DS200TBCBG1AAA

• Functional Abbreviation: TBCB

• Revision Quantity: 3 Revisions

• Backwards Compatibility: First two revisions only

• Assembly Type: Normal Assembly

About the DS200TBCBG1AAA

The DS200TBCBG1AAA is a General Electric Mark V Termination Analog Board designed for turbine control systems. This board is part of the Mark V Speedtronic series, used primarily for controlling and maintaining gas and steam industrial turbines of varying complexity. The Mark V series is now considered a legacy product line, having been discontinued, but remains significant as one of the last GE product series to incorporate patented Speedtronic control system technology.

AX Control maintains stock of these boards—be sure to order the correct revision for your system, as each letter and number in the product ID is critical.

Hardware Overview

• Physical Design:
  The DS200TBCBG1AAA is a long, narrow printed circuit board featuring:

• A lengthy terminal block along one edge

• Several vertical pin connectors

• Jumper switches

• Resistor network arrays

• Functionality:
  It is one of three terminal boards in the Mark V system that accepts isolated 21 V DC excitation power inputs. Jumpers determine whether inputs function as voltage or current inputs.

• Current input mode includes internal parallel wiring of voltage to TCQA boards at positions <R1> and <R3>.

• Current inputs support 4-20 mA (14 terminals) or selectable 4-20 mA or 1 mA (8 terminals).

• Connectors:

• JHH connector: Sends milliamp input signals to the TCCB board

• JII connector: Sends RTD signals to the TCCB board

Refer to original GE manuals for jumper configurations, installation, and handling instructions. If manuals are missing, AX Control may assist with replacements.

• Electrical Components:
  This board incorporates standardized Mark V hardware such as capacitors, resistors, diodes, and integrated circuits designed for voltage suppression and limitation, according to original factory specifications.

Product Number Breakdown

The product number DS200TBCBG1AAA provides important details:

• DS200: Marks the assembly as part of the Mark V Turbine Control System Series and domestic manufacture location.

• TBCB: Functional abbreviation shorthand used for convenience.

• G1: Indicates Mark V Series group one product with normal PCB coating.

• AAA: Represents two functional revisions and one artwork configuration revision, all rated “A.”

Frequently Asked Questions

Q: Why are only the first two of the three revisions backwards-compatible?
A: The first two revisions are functionally compatible. The third revision is an artwork configuration change and does not maintain backward compatibility.

Q: Does AX Control offer a warranty on the DS200TBCBG1AAA?
A: Yes. Every purchase from AX Control includes a guaranteed three-year warranty on the printed circuit board.