About the DS3800HMPF1A1D
The DS3800HMPF1A1D is part of GE’s Mark IV Speedtronic series. This is one of several available controller modules that General Electric designed for the Mark IV system, which was the first of the Speedtronic systems to offer triple modular redundant control. The HMPF boards are micro-computer 8086 based units.
The DS3800HMPF1A1D was built around IBM 8086 microprocessor chips, which were third-generation microprocessors that offered distributed system functionality, hardware-inherent multiprocessing capabilities, and a hierarchical bus organization. These chips offered 40-pin packages using HMOS technology and a 16-bit external data path.
The DS3800HMPF1A1D has a single backplane located on its rear edge. The opposite edge has one right-angled connector along with two LEDs--one red and one yellow--and a number of test points and jumpers. The jumpers can be used to configure the board as needed. However, you should notate how your current board is set before removal so to duplicate jumper settings on your replacement board.
Other board components include a vertical pin connector to allow for communication between the primary board and an optional auxiliary board, various additional integrated circuits, resistor network arrays, resistors, and capacitors. The auxiliary board connects to the main board using screw mounts connected to standoffs.
Additional information regarding this board can be sourced through original documentation from General Electric. Manuals and user guides from the OEM will help guide you through a successful installation, as well as provide you with useful information for maintaining your equipment. Duplicate copies of these documents may be available with your order if you no longer have access to your originals.
