交换机

The present invention is a database contrasting system for a programmable swapper suitable especially to the data contracting system which contracts and corrects internal data base of a programmable swapper and user's data in the telecommunication field.

本发明是一种程控交换机数据库对比系统，特别适用于电信通信领域中有关程控交换机内数据库与用户数据相比较、修正的数据比对系统。

Such problems in the use of the internal extension of the computer Internet access are more common, because the program a number of small switches without the use of standard dial-up sound frequency, or some simply switch to using music as a tone dialing.

这种问题在使用内部分机上网的电脑上比较常见，因为一些小的程控交换机的拔号音没有采用标准的频率，或者有一些交换机根本就是用音乐来作为拔号音。

It is feasible to build effectual, economic and banausic safe base of Intranet, through segment the net, set VLAN, control communication operation, bind IP and MAC and switch port base on the 3rd layer switch, use to achieve our basic requirements to the network safety in using information system.

通过三层路由交换机Passport8600，以机制所建立的集成制造单元网络系统为具体实例，通过网络分段，设置VLAN，通信业务管理控制，进行IP地址、MAC地址和交换机端口绑定等措施，建立了有效、经济、实用的网络安全基础平台。

The invention relates to a processing method of preventing frostbite and restarting of hydrogen electric pile, whose characteristic lies in the treating processes includes: When the electric pile turns off, the unsaturated fuel gas or the nitrogen, through the circle boast to clean the dissociate water; drying the MEA film module to keep the water content below the stipulated temperature which does not ice up; then the recycle gas through a wet exchanger to dry and the dried gas is continue used in the dry pile step; when restarting the electric pile, the recycle gas must heats then through the pile to elevate the temperature, then heats the fuel gas and the oxidant of the gas source, through the weting of the wet exchanger enters to the calefactive pile, enhances the wet step of the film module in the pile, starts the power output of the pile.

本发明涉及一种氢电堆的防冻和重新启动时的处理方法，其特征在于处理过程包括：电堆停机时，将水蒸气不饱和的燃料气体或氮气，通过循环吹扫除去电堆的游离水；干燥其中的MEA膜组件，使膜组件含水量降低到规定低温下不结冰的程度；而后再令循环气体通过一个湿交换机将循环气体干燥，以及被干燥后的循环气体继续用来干燥电堆的步骤；在电堆重新启动时，须将循环气体加热后通过电堆，使电堆升温，然后再将气源的燃料气及氧化剂加热，通过湿交换机加湿后进入已升温的电堆，提高电堆中膜组件的湿度的步骤，开始电堆的功率输出。

It enablement foregone technology. can intercommunication and any router and Packet by Packet Switching.

这种交换机实现已知的技术，并且有与任何网络中现有的路由器以及其它供应商的报文到报文的交换机互通的特性。

The campus network is an important part of the construction of university modernization and its security issues is also intimidatory by various problems. This article is for the campus network security features of the discussion based on a three layer switch embedded virus defense and information monitoring system, which researches the technical problems based on the embedded virus defense and information monitoring system, and provide the solutions and development based on the existing technologies.

高校校园网络是高校现代化建设中重要的组成部分，同样，其安全问题也受到各个方面的威胁，本文结合高校网络建设过程中校园网络的安全特点，对于基于三层交换机的校园网络防御体系进行了探讨，研究了基于三层交换机嵌入式病毒防御与信息监控系统要解决的技术问题，并依据现有的技术提出了解决方案及发展的趋势。

In this paper , a class of nonblocking property of Banyan network is discussed, then some useful examples are demonstrated through application to ATM switch design.

本文讨论Banyan网的一类非阻塞特性，说明它们在ATM交换机设计中的应用——通过数据分布提高ATM交换机的负载均衡能力，用更小的硬件代价实现多目广播功能。

A team function subcontrol in the PBX of the remote subscribers transmits the calls of these subscribers via the hot line and the PBX with the team function control.

远程用户的小程控交换机中的集群功能副控制器通过热线和具有集群功能控制器的小程控交换机传输此用户的呼叫。

The realization methods of secrecy line,keeping the same number when the phone changed to another office and WAC service are introduced in detail.

介绍了程控交换机所能提供的基本新业务，进而分析如何实现在不增加设备投入的前提下，利用现有程控交换机所提供的业务，通过不同的组合，开发出新的业务，如保密线业务、跨局移机保留原号业务、广域网 centrex业务，满足不同用户的需求，在业务上为用户提供超值服务。

A method for implementing Wide Area Centrex service includes that the calling party calling controller sends the Wide Area Centrex WAC group internal short number of the calling terminal to the called terminal through the called party calling controller.

本发明提供一种实现广域虚拟用户交换机业务的方法，主叫方呼叫控制器将主叫终端的广域虚拟用户交换机WAC群内短号通过被叫呼叫控制器发送给被叫终端。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。