The DS4815CHGA is a component from GE for the Mark IV series. This series was built by GE to manage gas and steam turbine systems. It was GE’s third commercially available Speedtronic system, and it was the first to introduce distributed control functions built on a framework of integrated microcomputers. This framework--which continuously monitors the turbine for issues like over speed, over temperature, fire, and high pressure-- increased reliability and decreased the turbine outage rate as compared to the MKI and MKII, GE’s earlier Speedtronic systems.
The DS4815CHGA is a modification of a DS3800HVDB PCB. It is built with two mating connectors for communicating with other circuit boards. This includes one five-pin right-angled male connector on the right side of the board as well as an AMP 9438 218A4553-1 533002-1 multi-pin connector on the left. The board also has one brass female SMA right-angled RF connector.
The DS4815CHGA is built with thirteen jumper switches. The board is populated with both metal film and carbon composite resistors. Two nylon extractor clips have been added, to ease installation and extraction of the board.
The DS4815CHGA has over fifty circuits, including 4-bit bidirectional universal shift registers, which have direct overriding clear and positive edge-triggered clocking. These circuits have four operating modes, including right shift and left shift, do nothing, and synchronous parallel load. Other chips include Schmitt triggers, hex inverters, and octal buffer/line drivers with 3-state outputs.
The original equipment manufacturer (OEM) was responsible for providing all technical support for the DS4815CHGA. This includes manuals and datasheets. AX Control suggests referring to OEM publications from GE before attempting installation of your part.