DS3800NSWA1A1B

Product Description

The DS3800NSWA1A1B was made by GE as a component for the Mark IV Speedtronic system.  This series was designed to manage gas/steam turbine systems and is designed with triple-redundancies on all protection parameters/critical controls as backups to minimize downtime caused by electronics failure.

The DS3800NSWA1A1B has an optional auxiliary daughter board that can be installed.  This auxiliary is marked DS3800DSWA. When it is installed the DS3800NSWA1A1B can access extra components, including twelve jumper switches and twelve potentiometers.  The two boards communicate via a ribbon cable that connects to a male vertical pin connector located toward the center of DS3800NSWA1A1B. This connector is marked “DA” and is labeled 218A4807P4.   The DS3800NSWA1A1B also has one other PCB mating connector, which is located along its left edge. This connector is labeled 218A4653-1 AMP 102041-1. The board has been numbered behind the component from ten to eighty by tens.  

The DS3800NSWA1A1B has twelve LEDs (light emitting diodes,) and twelve test points.  All of these components are marked. Six resistor networks populate the board. Resistor networks are sometimes used for voltage division.

The DS3800NSWA1A1B  has twelve integrated circuits.  This includes Texas Instruments SN74LS244J octal buffers and line drivers and Texas Instruments LM339N quad differential comparators.  

The DS3800NSWA1A1B is marked with 6DA02 and 6BA02.  It is alignment marked. It has ejector/extractor pins fitted into each right-hand corner.  Extractors help technicians during extraction by giving them a lever point to use against the chassis or guide rack to force the board out of position.  It also gives them a handle to guide the board in with, without having to grasp components or circuitry.

Manuals, data sheets,  and all other technical support for the DS3800NSWA1A1B were originally provided by General Electric.