GE DS3800HMHA MKIV, Master Highway Controller Card

The primary purpose of the DS3800HMHA is to act as the main communication and control hub for the Mark IV system’s internal network, often referred to as the “Master Highway.” It’s essentially a microprocessor-based board that manages the flow of data between the main processors and other modules in the control rack. Its key roles include:

  • Highway Management: It controls a proprietary communication bus, or “highway,” that allows various modules (input/output cards, display cards, etc.) to exchange data with the central processing unit. This ensures all parts of the system are synchronized and working together.
  • Microprocessor Control: The board is built around a microprocessor, enabling it to execute commands, perform control functions, and manage the operations of other connected components. It’s a key part of the distributed control architecture of the Mark IV system.
  • Data Processing: It processes and directs data traffic on the highway, ensuring that information from sensors and other inputs reaches the correct destination and that control commands are sent to the proper output devices.
  • System Diagnostics: The board includes diagnostic features, such as LED indicators (two red and one yellow), to provide a quick visual status of its health and activity. A lit red LED typically indicates a fault or error.
التصنيف:

الوصف

The GE DS3800HMHA is a Master Highway Controller Card used in the GE Speedtronic Mark IV series of turbine control systems. As a legacy part, it’s no longer manufactured by GE and is used for maintaining older systems.


 

Function and Purpose

 

The primary purpose of the DS3800HMHA is to act as the main communication and control hub for the Mark IV system’s internal network, often referred to as the “Master Highway.” It’s essentially a microprocessor-based board that manages the flow of data between the main processors and other modules in the control rack. Its key roles include:

  • Highway Management: It controls a proprietary communication bus, or “highway,” that allows various modules (input/output cards, display cards, etc.) to exchange data with the central processing unit. This ensures all parts of the system are synchronized and working together.
  • Microprocessor Control: The board is built around a microprocessor, enabling it to execute commands, perform control functions, and manage the operations of other connected components. It’s a key part of the distributed control architecture of the Mark IV system.
  • Data Processing: It processes and directs data traffic on the highway, ensuring that information from sensors and other inputs reaches the correct destination and that control commands are sent to the proper output devices.
  • System Diagnostics: The board includes diagnostic features, such as LED indicators (two red and one yellow), to provide a quick visual status of its health and activity. A lit red LED typically indicates a fault or error.

 

Technical and Design Features

 

The DS3800HMHA is a robust, industrial-grade circuit board designed to operate in a demanding environment.

  • Legacy Part: The “DS3800” prefix identifies it as a component of the legacy Mark IV series, which was GE’s first microprocessor-based gas turbine control system, introduced in the 1980s.
  • Connectors: The board features two right-angled connectors and a backplane connector for secure communication within the rack system.
  • Physical Features: It has two extractor clips on the front corners to make it easy to insert and remove from its slot.
  • Configuration: It contains jumpers and other components that allow technicians to customize its settings for specific applications.