The DS3800NMEC1B1A is designed as a motor exciter control board for the Mark IV series from GE. This series manages steam and gas turbine systems with increased efficiency due to the automation of procedures like cool down and shut down. The Mark IV can also monitor emissions from fuel, air, and water.
The DS3800NMEC1B1A is a larger board that is designed to connect to several other boards. To that end, it has five PCB mating connectors populating its surface. This includes two vertical (male) pin connectors located near its center; these are labeled DA and DB. The DS3800NMEC1B1A is also built with three 218A4637P2 right-angled connectors; these are labeled JH, JA, and JE. Finally, there is one 6-pin right-angled header along the right edge; this is labeled JP.
The DS3800NMEC1B1A has two jumper switches. Jumpers allow for a certain amount of customization of the board by completing circuits as the user desires. The first jumper on the board may be set either to “in” or to “out.” The other may be set to “J32” or “J33.”
The DS3800NMEC1B1A has seventeen test points, one rotary potentiometer, and ten transistors. It is built primarily with ceramic-covered metal film resistors. Capacitors are made of various materials but include small ceramic capacitors, polyester film, and metalized polycarbonate.
The DS3800NMEC1B1A has multiple circuits on the board, including a 6.000 MHz oscillator, operational amplifiers with an offset current less than 400 pA over temperature, and quad voltage comparators that directly interface with TTL and CMOS.
All technical support for the DS3800NMEC1B1A (including publications like manuals and datasheets) was provided by General Electric.