# Communication Details

Barcode library will use the Virtual channel COM1B via Bluetooth to communicate with the POS application, virtual channel COM1A is used by CXPI application for its communication. Barcode application will use the following config.usr1 parameters for communication configuration.

| # | Parameter  | Description                         | Default Values |
| - | ---------- | ----------------------------------- | -------------- |
| 1 | **BCCOM**  | Sets the default communication port | COM1B          |
| 2 | **BCBAUD** | Sets the default Baud Rate          | 115200         |
| 3 | **BCFMT**  | Sets the parity setting             | 8N1            |

| **NOTE** | In case of any existing terminal with CXPI bundle installed, the user should check for the compatibility of ADK and CXPI version before proceeding with the installation of Barcode library. |
| -------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |

| ![](/files/269eb36ef5c42f750943aab78717515789334f54)**NOTE** | Barcode functionality is applicable only for e280s Scanner devices (e280s). |
| ------------------------------------------------------------ | --------------------------------------------------------------------------- |


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