About the DS200TBQAG1A
This DS200TBQAG1A product offering is a Thermocouple Termination Module originally manufactured for placement in General Electric's Mark V Turbine Control System Series, as explained earlier. As you have surely been able to discern based on its full extended series name, the Mark V product series that this DS200TBQAG1A PCB belongs to has specific applications in the management and control systems of compatible steam, wind, and gas turbine automated drive assemblies, and is considered one of the final General Electric product series to make use of the company's patented Speedtronic control system technology. This DS200TBQAG1A PCB's Mark V Turbine Control System Series, while one of the final GE Speedtronic product series, is also considered a now-obsolete legacy series due to its eventual manufacturing discontinuation in the years following its initial release. This DS200TBQAG1A PCB, while functionally-describable as a Thermocouple Termination Module, is not the original product of its intended functionality to feature within the Mark V; that would be the DS200TBQAG1 parent printed circuit board missing this DS200TBQAG1A Board's A-rated functional product revision.
Hardware Tips and Specifications
This DS200TBQAG1A printed circuit board necessitates its own series of functionally-important hardware components and component specifications. The GE RST Terminal Board DS200TBQAG1A features 2 90-pin terminal blocks to support a maximum of 180 signal wires. The terminal blocks are labeled TB1 and TB2. The GE RST Terminal Board DS200TBQAG1A also contains 3 20-pin connectors. The GE RST Terminal Board DS200TBQAG1A contains five screw holes that secure the board inside the board rack. The board is heavy due to the terminal blocks and the multiple signal wires so it must be securely attached to the rack. As discussed in this DS200TBQAG1A product offering's originally-introduced instructional documentation, no hardware customization is possible in the assembly of this DS200TBQAG1A printed circuit board as no manually-moveable hardware jumpers have been inserted in its assembly; Berg-type or otherwise. Several different styles of Mark V Turbine Control System Series connectors have been made available to the assembly of this DS200TBQAG1A Thermocouple Termination Module. These connectors include:
- The JAR TCQA Board Thermocouple Signals Connector
- The JAS TCQA Board Thermocouple Signals Connector
- The JAT TCQA Board Thermocouple Signals Connector
Each of these connectors available to the assembly of this DS200TBQAG1A PCB have been named through a combination of their factory-printed nomenclature label, Mark V Series interfacing potentials, and functionality in terms of the DS200TBQAG1A Board itself. While the JAR, JAS, and JAT connectors in this DS200TBQAG1A device's assembly may appear functionally identical; they all correspond to specific signal numbers ranging from 1 to 45 in the assembly of this DS200TBQAG1A product.
A series of specific Mark V Series guidelines must be followed when you remove or install the board. The terminals in this DS200TBQAG1A Thermocouple Termination Module have assigned IDs and for all the terminals with signal wires connected to them, write on a strip of paper or tape the ID for the terminal to which it is attached. Then, use a small screwdriver to loosen the screw that secure the wire in the terminal. Only loosen the screw enough so you can remove the wire without removing the screw. The DS200TBQAG1A board also features two 20-pin connectors that connect to a ribbon-type cable. When you disconnect a ribbon cable you must only grasp the connector portion of the cable and pull it out of the board. If you grasp the ribbon portion of the cable and pull, you might inadvertently pull the wires out of the connector and lose the signal connection. With one hand remove the screws that hold the board in the rack and use the other hand to support the board. Grasp the board with two hands from the sides and carefully remove it from the cabinet.
