DS3800NADB

About the DS3800NADB

The DS3800NADB is a printed circuit board designed as a 12-bit analog/digital converter card. This PCB is designed as a component of the Speedtronic Mark IV series, which is a gas and steam turbine control system from General Electric. The Mark IV is designed with integrated chipsets with intentional two-out-of-three voting redundancies on all critical controls and protection parameters.

The DS3800NADB is a larger PCB that functions as a motherboard to the smaller auxiliary board DS3800DADB. When this board is installed the capacitance of DS3800NADB is greatly increased due to the eight capacitors (708A1 200V M/E) attached to the auxiliary.

The DS3800NADB has the following specifications:

• It has spare PTH located along its right edge.

• It has one amber LED marked "p ok."

• It has three TP test points. These are marked com/sync/aout.

• It has one female connector.

• It has one male connector.

• It has one ribbon connector for communicating with DS3800DADB.

• It is factory drilled.

• It has two variable resistor potentiometers.

• It has an extractor tab attached to its upper and lower right corners.

• It is marked for alignment. It is marked on its bottom edge: NADB 6DA02 6BA04.

• It had multiple jumper switches. J1 is marked "range." J2 is marked "parity" and can be set to in or out. J3 is marked OSC and can be set to in or out.

• It has multiple integrated circuits.

All tech support for the DS3800NADB including publications such as manuals and data sheets was provided by GE.