基于CC1101的关于无中心对讲机的设计方案
给出了硬件电路图
No center based on the CC1101 radio hardware design circuit is given (2011-04-25, WORD, 290KB, 下载65次)
中国联通增值业务系统VAC鉴权中心与SP的同步接口规范。中国联通公司企业规范。适用于各SP参考使用
China Unicom s value-added business systems VAC authentication center and SP synchronous interface specification. China Unicom s business standards. For reference applicable to all SP (2010-01-07, WORD, 56KB, 下载12次)
中国联通GSM直放站系统统一监控管理协议规范1.0
本技术规范规定中国联通GSM直放站网络管理协议和直放站设备的网管接口技术要求。
直放站网管系统一般由监控中心、通信信道和直放站三部分组成。监控中心的主要职能是对众多厂家提供的多类型、多数量的直放站进行“集中控制，统一监管”。监控中心对直放站的操作主要包括参数设置、数据查询、告警处理三种主业务；直放站作为被监管对象，在被动应答来自监控中心的命令外还必须将当前故障信息以告警命令的形式主动上报给监控中心。监控中心和直放站的通信方式可以是RS232串口直连、有线MODEM拨号和GSM短信方式等
China Unicom GSM Repeater Monitoring System unified management protocol specification 1.0 Technical Specification provides China Unicom GSM Network Management Protocol Repeater Repeater equipment and network management interface technical requirements. Repeater Network Management System by the general control center, communications channels and Repeater three components. Control center's main function is to provide manufacturers of a large number of diversified, multi-Repeater number of "centralized control, unified supervision. " Repeater control center for the operation, including the main parameter setting, data inquiries, warning handles three main business; Repeater as by the regulatory target, in a passive response from the control center orders must also be present fau (2007-01-24, WORD, 76KB, 下载45次)