After a connection to the VAS 5054a has been set up, the Bluetooth software provides a virtual serial COM port (Bluetooth serial port Profile).
当一个与VAS 5054a的连接建立后，蓝牙的软件会提供一个虚拟的串口。
Access via Bluetooth: After a connection to the VAS 5054a has been set up, the Bluetooth software provides a virtual serial COM port (Bluetooth serial port Profile).
通过蓝牙进入：当一个与VAS 5054a的连接建立后，蓝牙的软件会提供一个虚拟的串口。
The whole system software was designed based on the Bluetooth Serial Port Application Framework. Furthermore, it was implemented on the hardware platform of the wireless data transmission system.
根据蓝牙串口应用框架，设计了系统应用程序并在系统硬件平台上实现。
RFCOMM is better when you want to send and receive stream data (and when you'd like to take a traditional serial port application and Bluetooth-enable it).
如果想发送和接收流数据（而且想采用传统的串口应用程序，并给它加上蓝牙支持），那么 RFCOMM更好。
In the real world, RFCOMM should be used when you want to take a traditional serial port application and make it Bluetooth-enabled.
在现实世界中，如果想使用传统的串口应用程序，并让它能使用蓝牙，就应当使用RFCOMM。
RFCOMM is known as the virtual serial port protocol because it allows a Bluetooth device to simulate the functions of a serial port.
RFCOMM称作虚拟串口协议(virtualserial port protocol)，因为它允许蓝牙设备模拟串口的功能。
Like other profiles built on top of the serial port profile, the virtual serial link created by the lower layers of the Bluetooth protocol stack is transparent to applications using the DUN profile.
和其他建立在串口配置文件之上的配置文件一样，被更低层蓝牙通信协议实现的虚拟串行链接对使用DUN配置文件的应用程序是透明的。
As such, the profile allows legacy applications to use Bluetooth as if it were a serial-port link, without requiring any modification.
照这样，这个配置文件支持了旧的应用程序使用蓝牙就像是用串口链接，且不需要任何修改。
Communication approaches including serial port, IrDA, and Bluetooth are supported.
该系统支持串口、红外、蓝牙等通信方式。
The Serial Port Profile (SPP) is used for data transfer via Bluetooth.
串行口(SPP)是用来通过蓝牙做数据传输的。
The Serial Port Profile (SPP) is used for data transfer via Bluetooth.
串行口(SPP)是用来通过蓝牙做数据传输的。
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