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SMPL DB9 Breakouts

Instrument cover photo.

This documentation covers The following part numbers:


The SMPL DB9 Breakout allows the total configuration of connections between a female or male DB9 connector to the 4 pins of our SMPL connector. This enables you to effortlessly connect any DB9 to any 4-pin SMPL device, expanding compatibility across your equipment. These Universal DB9 Breakouts utilize an array of solder jumpers to configure a SMPL four position push connector to any of the desired pins on a DB9. There are additional jumpers that allow you to connect any of the DB9 Pins to the case ground without utilizing a pin of the 4 position connector. We have recommended pinouts for many types of sensors in the SMPL documentation, so don’t forget to check those out.

What's in the Box

Upon receipt of your unit, unpack the contents of the box and inspect all parts for any damage incurred during shipping. Immediately report any missing parts or damage to Leeman Geophysical for replacement.

  • SMPL DB9 breakout PCB Assembly

Tool Requirements

  • Soldering Iron

  • Solder


There are a total 45 solder jumpers on the PCB assembly. These jumpers are found in 5 rows and 9 columns where the rows (A-D) correspond to the pins of the SMPL push connector, and the columns (1-9) relate to the 9 pins of the D-Sub connector. The row and the column then describe the which two pins the jumper will connect when soldered. Multiple pins on the D-Sub can be connected to the same output pin if desired. The additional row of jumpers (S) serve to connect pins from the DB9 directly to the casing of the D-Sub connector.

PCB Render Front.

PCB Render Back.


Date Changes
May 2024 Moved Documentation to MkDocs Format