![]() Use a multimeter in the continuity tester mode to make sure that the cable is correctly assembled. A simple way to protect the integrity of the cable (if you are using a ribbon cable) is to use hot glue. Ribbon cable soldered to the DB9 connectorĪssemble the shield. Solder the ribbon cable into the DB9 connector: DB9 connectors are designed to work with the EIA/TIA 232 serial interface standard, which determined the function of all nine pins as a standard, so that. Stripped ribbon cable ways - they are ordered as required to correctly fit in the DB9 connector Warning: customers reported issues if all pins are connected, therefore we recommend that you only solder the Tx, Rx and GND as described in the upcoming instructions. If your DB9 connector needs to be soldered, do it only for the Tx, Rx and ground pins. Note: if nothing appears on the serial terminal emulator, consider the hypothesis that Tx and Rx pins may be inverted. Use a serial to USB adapter that accepts configurable Tx and Rx pins.If you have an IDC to DB9 connector, also crimp it paying attention to the pins correspondence. Note: It might be interesting to define a pattern in this step such as always having the ribbon cable to the left of the even pins of the connector, since the carrier board does not have an IDC header to prevent inverted polarity, but instead only a pin header. ![]() Crimp the IDC connectorĬrimp the ribbon cable to the IDC connector. The RX from the IDC header must be connected to the TX from the DB9 connector. Warning: The TX from the IDC header must be connected to the RX from the DB9 connector. Verify the pinout of the carrier board pin header and the serial DB9 connector. The image below presents the bill of materials required for the adapter: Note: you may use another cable type and length, depending on your preference Solder wire and soldering iron, depending on your DB9/D-sub connector.DB9/D-sub female connector (preferably a 10-pin IDC to 9-pin D-sub male connector).It is available in the Carrier Board Accessory Kit and from many electronic components suppliers, e.g. You may buy one adapter, paying attention to the standard - usually called DTK or Intel standard. The following steps will guide you through assembling your adapter cable. In order to connect the RS-232 from the Iris or Ixora carrier boards to a DB9 connector, you must assemble a 10-pin IDC to DB9 adapter.
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