以太网

Generally speaking, private line and frame relay customers are not ready to or interested in deserting longstanding services, so the migration to Ethernet is going to be slow and steady.

&&一般来说，在专用线路和帧中继用户没有准备好或有兴趣在开小差，长期以来服务，使移民到以太网将会缓慢而稳定。

This standard raises the Ethernet speed limit from 10 Megabits per second to 100Mbps with only minimal changes to the existing cable structure.

这个标准只用对已经存在的线路结构很小的改造就可以把以太网的速度限制为从10Mbps 到100Mbps。

The design of this dissertation begins with the definition of audience data structure based on considering the embedded developing environment features. The dissertation uses the STi5518 chip by ST Microtones to collect audience data, and then the SI analysis and OSD interactive function are used to gain the user watching information. Then collect audience data in EEPROM of STB, use STB and serial to transmit the data, then use the RS232 serial port and RJ-45 converter to realize the data Return of Serial to Ethernet, in the process of data Return it completes the conversion of data format.

本设计首先在嵌入式环境的前提下，在用户数据采集和回传工作中采用了ST Microtones公司提供的STi5518芯片作为机顶盒主芯片，根据收视率调查需要制定出用户的收视信息数据结构，并结合数字电视业务信息分析以及机顶盒的屏幕显示互动功能，对用户的收视情况进行记录；然后把记录的数据存储到机顶盒的EEPROM中，并利用机顶盒串口输出数据，再利用RS232串口与RJ-45转换器实现串口转以太网的数据回传，在回传过程中完成了数据格式的转换。

Power over Ethernet products include both mid-span and endpoint solutions over CAT5 cabling up to 100 meters.

以太网供电有两种方法：中间跨接法和末端跨接法，都是通过长达100米的CAT55布线基础架构实现的。

It features a 2.0 megapixel, progressive-scan CCD sensor, a high-quality megapixel varifocal lens, advanced image processing for crisp images of moving objects, power of Ethernet, video motion and audio detection, two-way audio support, and Internet Protocol version 6 support.

它还配备200万像素，逐行扫描CCD传感器，高像素变焦镜头，移动物体勾边图像的先进图像处理，以太网供电，视频移动和音频侦测，双向音频支持和Ipv6网络协议支持。

Two of the new Alcatel OmniSwitch 6800 switches are designed to meet workgroup network needs with a capacity of 384 users per stack, Gigabit and 10 Gigabit Ethernet uplinks, full Alcatel Operating System support for network intelligence, and support for Alcatel's comprehensive CrystalSec data security services.

这两款新的OmniSwitch 6800交换机针对满足每栈384位用户的工作组网络的容量需求，支持千兆和10G以太网上行链路，阿尔卡特的操作系统满足对智能网络的需求，同时支持阿尔卡特综合CrystalSec数据安全服务。

PCs connect to the Thin Ethernet bus via a coaxial "T" connector.

个人电脑通过同轴&T&连接器连接瘦以太网。

Basing costumers requirement, we design and develop Measurement and Control System Platform based Embedded System. In this thesis,I argumentate the whole scheme of Embedded Measurement and Control System Platform : Microsoft Windows CE RTOS and Intel StrongArm 1110 microprocesser;The communication ports including 10M Ethernet port , 9 pin RS232 port and GPIO.

文中论证了嵌入式测控系统平台的整体方案：微处理器采用Intel公司32位StrongArm1110，实时操作系统采用Windows CE，通信接口有Ethernet网络接口、RS232串行通信接口以及通用输入/输出；深入剖析了系统平台硬件、软件的体系结构及开发流程；重点说明了系统平台的通信模块——以太网通信端口和串行通信端口以及WDT/LVS模块的设计与实现方法。

Tools are designed to provide a comprehensive set of monitoring utilities and packet sniffers to be used for capture, statistical analysis, and protocol decoding in your Ethernet network.

这个工具的设计是为了提供一个监测实用程序全面的设置，以及在你的以太网网络中进行封包嗅探进而截获命令，统计分析，协议解码。

It can control the signal light with its internal project; also the user can modify the project by the control panel. And the outstanding point is that the intelligent traffic signal machine has the function of long-distance stakeout and control. Namely the intelligent traffic signal machine can transmit the real time traffic data to the upper computer and display the data on computer. The upper computer can modify and transmit the traffic data to the signal machine, improving the efficiency of the traffic control. The system realizes the function of communication by the TCP/IP protocol, and the capability is very good in reliability and real time.

本信号机能够运行内部的固有方案控制交通信号灯，同时可以通过键盘面板对方案进行修改，其突出特点是具备远程监控功能，即信号机能够实时将路口交通方案信息反馈给监控中心并在主控界面显示出来，监控中心可根据路口实际情况对现行交通方案进行修改，通过以太网下传给路口信号机，改善交通流量控制。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。