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GPRS主台软件，支持DL/T645协议， 实现抄收电表软件。-GPRS Main Desk software, support DL/T645 agreement, realize Collecting meter software.

包含两篇关于FXO、FXS的文档，详细介绍了他们的区别和定义，是开发VOIP设备的很好的参考材料。这种材料可是很难找哦。-contains two of FXO, FXS document, detailing their differences and definitions, the development of VoIP equipment is a good reference material. But this material is difficult to find, oh.

射频卡读卡程序,射频IC卡识别技术，通常由载有密码的射频IC卡来代替传统的键盘密码。读卡模块读出密码后，即产生输出电信号，继而驱动执行机构动作，或将密码（如卡号）送给外围对接设备（如电脑或单片机等）。采用射频卡读卡模块及感应体构成的特定系统中，因射频卡内码信号唯一且不可复制，因此射频卡不仅杜绝了非法复制密码，还为各种控制采用信息化管理创造了条件。-RF card reader procedure, radio frequency identification technology IC cards, usually containing the password from the RF IC cards to replace the traditional keyboard password. Reader module read out a password, as a result, the output signal, and then drive the implementation agency action, or passwords (such as logging) gave the external docking equipment (such as computer or microcontroller, etc.). RF card reader module consisting of sensors and the specific system, RF signal code card but not the only copy, RF Card not only prevents illegal copying passwords, but also controls the use of information management to create the conditions.

ISO 13239为关于HDLC协议的国际标准，详细定义了HDLC的内容，通过该协议可以完成标准的HDLC编程-ISO 13239 for HDLC agreement on international standards, a detailed definition of the content of HDLC, adoption of the agreement will be completed standard HDLC Programming

此程序文件用于相位噪声模拟此程序文件用于相位噪声模拟此程序文件用于相位噪声模拟

资源描述DELPHI下可以直接使用参照的FTP源码，方便使用。可以进行上传，下载及删除FTP服务器上的文件。

发送UDP的源代码-send UDP source code

introduce a famous inequality in statistical signal processing. This inequality can be used widely in equalization and communication signal processing

图文并茂，详细介绍了keil与proteus联合调试的方法和步骤-illustrated in detail with the keil proteus joint testing methods and steps

这是osip官方网站上下载的，exosip2的源代码。对学习osip很有帮助-This is the official website osip downloaded, exosip2 source code. Very helpful for learning osip