GE DS200TBCBG1AAA Termination Analog Card

الوصف

The GE DS200TBCBG1AAA Termination Analog Card is a combined Resistance Temperature Detector (¹$\text{RTD}$) and Current Loop (²$\text{4-20 mA}$) Input Termination Module used in the General Electric Mark V Speedtronic Turbine Control System.³

Its primary function is to serve as the high-density terminal board where a variety of critical analog input signals from the turbine’s field devices are wired, before being routed to a main processing board.⁴

Key Functions and Specifications ($\text{TBCB}$)

The board is identified by the functional acronym TBCB (Termination Board – C/B Analog) and is installed in the ⁵$\text{R5}$ core of the Mark V cabinet, often in location seven.⁶

1. Input Signal Termination

The ⁷$\text{DS200TBCBG1AAA}$ is a composite analog input termination board, handling a total of 36 inputs divided into two main signal types:⁸

• Current Loop Inputs: 22 milliamp transducer inputs (typically $\text{4-20 mA}$).
• RTD Inputs: 14 ⁹$3$-wire ¹⁰$\text{RTD}$ inputs (e.g., ¹¹$\text{PT100}$ and ¹²$\text{PT1000}$ temperature sensors).¹³

   

2. Signal Routing and Processing

The $\text{TBCB}$ board’s role is to reliably interface the field signals with the control system’s processor. It routes the signals to the ¹⁴$\text{TCCB}$ (Common Extended Analog ¹⁵$\text{I/O}$ Board) for scaling and processing:¹⁶

• JHH Connector: Routes the milliamp input signals to the ¹⁷$\text{TCCB}$ board.¹⁸

   

• JII Connector: Routes the ¹⁹$\text{RTD}$ input signals to the ²⁰$\text{TCCB}$ board.²¹

   

3. Hardware Configuration

This board includes hardware components that allow for specific configuration of the current inputs via jumpers:²²

• Alternate Current Range: Eight of the regular current inputs (specifically signals ²³$\text{15-22}$) can be configured using hardware jumpers (²⁴$\text{BJ23}$ through ²⁵$\text{BJ30}$) to a ²⁶$0-1 \text{ mA}$ current range instead of the standard ²⁷$\text{4-20 mA}$.²⁸

   

• Other jumpers (²⁹$\text{BJ1}$ through ³⁰$\text{BJ22}$) are used to connect ³¹$\text{mA}$ inputs to the ³²$\text{DCOM}$ (Digital Common).³³

   

Part Number and Revisions

The extended part number DS200TBCBG1AAA indicates a final revision status:

• DS200: Mark V Series Board.³⁴

   

• TBCB: Functional Acronym.
• G1: Group One Mark V Series product.³⁵

   

• AAA: Represents the revision history, specifically two A-rated functional product revisions and one A-rated artwork configuration revision.³⁶ These revisions are typically minor manufacturing or component updates while maintaining the core functionality.

   

I included a video about the Weatherby Mark V Carbonmark rifle, as it shares the “Mark V” designation, a common naming convention across different product lines, even if its function is completely unrelated to the $\text{GE}$ Mark V turbine control system boards.