The GE Mark IV Printed Circuit Board DS3800HADA1A1A features multiple pins that are connected through fine wires wrapped around the pins. The GE Mark IV Printed Circuit Board DS3800HADA1A1A also is populated with 8 jumpers for configuring the board and 1 decoder/demultiplexer.
The decoder/demultiplexer processes signals on the board and combines several signals into 1 signal for transmission. The decoder/demultiplexer cannot be configured.
The jumpers are 1 means of configuring the board. Best practice is to configure the board before you install it in the drive. The qualified installer must consult with the engineers at the site and review the configuration options available with the jumpers. The jumpers come from the factory set at the default positions. These are typically the most commonly used configuration settings. Also, included with the board is a set of configuration instructions that detail the jumpers and how moving the pins changes how the board behaves.
Once the installer has consulted with the operators and engineers, it is easy to move the jumpers. Just before you plan to move the jumpers and install the board, open the static-protective bag and slide out the board. Place the board on top of the bag. Then, locate the jumpers to move by referring to the jumper IDs. The jumper identifiers begin with the letter J. Use your thumb and 1 finger to pull up on the jumper to remove it. Alternatively, use a small set of pliers or other instrument to pick up the jumper. Slide it over the pins you want to cover.