DSC（Data Service Center）是用于接收DTU数据和向DTU发送数据的服务软件，和DTU之间通讯使用开发包动态库gprs_dll.dll，该文件包括和DTU通讯所需要的全部API函数，包括服务的启动、数据发送、数据接收、关闭服务等，DSC实际上是架构在gprs_dll.dll所提供的功能之上的数据处理软件，其所需要完成的功能如下：

1、　　调用API启动服务和停止服务；

2、　　调用API接收数据和向DTU发送数据，并且对数据作进一步处理；

3、　　调用API轮询DTU用户列表，如果需要可作进一步处理，包括用户认证等；

4、　　调用API对DTU进行远程配置

-DSC (Data Service Center) is used to receive data and to the DTU DT U send data services software, and communications between the DTU use development kits gprs_dll.dll DLL, the documents include communications and DTU need all API function, including the launch, data sending, receiving data, the closure of services, DSC is actually in gprs_dll.dll framework provided by the above functions of data processing software, they need to complete the following functions : 1, API calls to stop and restart services; 2. API call and receive data to the DTU send data, as well as data for further processing; 3. Call API Polling DTU user list, if necessary, for further processing, including user authentication; 4. Calling the API for remote configuration DTU