| Name | Description | Type | Package | Framework |
| AbstractSerialPort | Abstract class that provides common functionality to work with serial ports. | Class | com.digi.xbee.api.connection.serial | XBee |
| DataReader | Thread that constantly reads data from an input stream. | Class | com.digi.xbee.api.connection | XBee |
| IConnectionInterface | This interface represents a protocol independent connection with an XBee The connection can be made using sockets, serial port, etc. | Interface | com.digi.xbee.api.connection | XBee |
| SerialPortInfo | Helper class used to store serial port information. | Class | com.digi.xbee.api.connection.serial | XBee |
| SerialPortParameters | Helper class used to store serial connection parameters information. | Class | com.digi.xbee.api.connection.serial | XBee |
| SerialPortRxTx | Class | com.digi.xbee.api.connection.serial | XBee | |