About the DS3815PCMA
The DS3815PCMA is a PCB manufactured by GE for the MKIV (Mark IV) series. The MKIV was GE’s replacement for their earlier gas and steam turbine Speedtronic management systems like the MKI and MKII. It improved upon these earlier series by using two-out-of-three backups run by microcomputers on all critical controls and protection parameters, with an alarmed system that set off an alarm to the operator if more than one of the redundant systems exceeded predefined limits. This protection system monitors items such as combustion monitoring, vibration protection, speed protection, and flame detection.
The DS3815PCMA has three mating connectors for communicating with other PCBs. This includes one 278A3465 AMP 745105-S connector on the right edge, one 218A4553-1 A/mp 102041-1 8327 connector on the left, and one male vertical pin connector near the center axis of the board. This last connector will connect to an optional auxiliary that is supported by four vertical nylon pins affixed to the board. This optional auxiliary, when installed, is held in place by one board-to-board pin located in the upper right corner.
The DS3815PCMA is built with three jumper switches, four test points, one amber LED, one red LED, and two extractor clips. Extractors help technicians with both insertion and extraction by giving them a handle to hold the board by (rather than grasping the surface and possibly damaging circuitry or components) and also by giving the technician a lever point to pull the board from its position.
The DS3815PCMA is built with seven resistor network arrays. It has fifty integrated circuits, including synchronous 4-bit up/down counters, 8-bit high-speed CMOS static RAM, and 3-STATE Octal D-type transparent latches.
Technical support for the DS3815PCMA was provided by GE. This includes all publications for this PCB, like datasheets and manuals.
