So the Wireless Data Interface has two tasks. One is to convert the Unicode-coded datum coming from the wireless modem to the one coded with GB or ASCII. Then transit them to the terminal equipments by serial communication.

• 因此,无线数据接口所完成的工作是将接收到的来自无线调制解调器的按Unicode码编码的短消息转换戍按GB码或ASCII码编码的短消息,再通过串行接口传送给终端设备;