下载文档原格式
Threats and solutions to our environmentLong times ago, there was a small village. In the village lived a number of people, and they lived with the environment in harmony. So there used to be the blue sky; the clean water; the green mountains, and all kinds of birds. In the morning, you can breathe the fresh air, and listen to the beautiful song sang by the birds. It is wonderful, isn’t it?However, things changed there. I do not know whether I should feel happy or not. The small village is no longer exit; instead, it has become a modern city now. The economy has developed, but the water is no longer clean; the mountains are no longer green, and the birds is no longer singing, because they are busy in finding a place to live in.So how could this be?The desires in profit in matters lead to the problems. The biggest threat is our heart. We never know satisfactory, and we never care about others` feelings. It is that our human beings should be to blame!The limitless demand for everything makes our environment more and more dangerous. It almost breaks up.As college students, the first thing we should do I think is apologizing for our environment. We must have a clear consciousabout what stupid things we have done to our environment.Facing up to the huge number of population, the second thing we should do is saving. If everyone saves one piece of paper, it equals to plant a big forest. So do not look down it.We have a long way to run in protecting our environment. We should take more bus or other transportation, but not a private car. Besides, we can use the bags made of cloth to contain something instead of plastic. In a word, we have much to do. No matter what way you choose to help, you should make sure that the way could be helpful.Yeah, the future is still promising, if we take some efficient measurers. We have not done! We still have the chances to save ourselves.Come on, guys!。
2Getting StartedTo get started with HP System Management Homepage(HP SMH),use the following information as a guideline for configuring HP SMH and then setting up users and security properly.To configure HP SMH:•On HP-UX Operating Environments,HP SMH is installed with default settings.You can change the configuration by modifying the environment variables and tag values set in the/opt/hpsmh/lbin/envvars,/opt/hpsmh/mon/smhpd.xml,and/opt/hpsmh/conf/timeout.conf files.•On Linux operating systems,HP SMH is installed with default settings.The settings are configurable by using the perl script(/opt/hp/hpsmh/smhconfig/hpSMHSetup.pl)locatedin/opt/hp/hpsmh/ (on Linux x86and x86_64)and in Itanium systems the perl script islocated in/opt/hp/hpsmh/smhconfig/hpSMHSetup.sh.•On Windows operating systems,the installation enables you to configure the HP SMH settings during installation.NOTE:To change the configurations for the HP-UX,Linux,and Windows operating systems,see the HP System Management Homepage Installation Guide on the HP Technical Documentation Web site at .To set up user access and security properly:1.Add user groups to effectively manage user rights:“User Groups”2.Configure the trust mode:“Trust Mode”3.Configure local or anonymous access:“Local/Anonymous Access”Related Topics•Logging In•Configuring Firewall Settings•Automatically Importing Certificates•Logging OutLogging InThe Login page enables you to access the Home page,which contains the available HP Insight Management Agents.Starting HP System Management Homepage(HP SMH)from Internet Explorer To log in to the HP SMH with Internet Explorer:Related Topics91.Navigate to https://hostname:2381/.NOTE:If you are browsing to an HP-UX server,by default you must instead use the URI:http://hostname:2301/.By default,HP-UX is installed with the autostart feature enabled.A daemon listens onport2301and only starts HP SMH on port2381when requested,then stops it again after atimeout period.You can also configure HP SMH to always be running on port2381.See thesmhstartconfig(1M)command for more information.If the Start on Boot feature is enabled(instead of autostart)a message window explains the security features.You can wait afew seconds to be redirected to port2381or click the link at the bottom of the message.TheSystem Management Homepage Login page will appear.You can find procedures on how to change the configuration variables in the HP SystemManagement Homepage Installation Guide on the HP Technical Documentation Web site at.2.The first time you browse to this URI,the Security Alert dialog box appears,asking you toindicate whether to trust the server.If you do not import the certificate,the Security Alertappears every time you browse to HP SMH.NOTE:If you want to implement your own Public Key Infrastructure(PKI)or install yourown generated certificates into each managed system,you can install a certificate authorityRoot Certificate into each browser to be used for management.If this is implemented,theSecurity Alert dialog box does not appear.If the alert appears when you do not expect it,you might have browsed to the wrong system.You can refer to the online help in yourbrowser for more information about installing the certificate authority Root Certificate.3.Click Yes.The Login page appears.If you have enabled Anonymous access,then System ManagementHomepage appears.4.Enter your user name that is recognized by the operating system.On HP-UX,HP SMH initially only allows access to the root user,on Linux access is initiallyallowed to users belonging to the root operating system group,and on Windows to usersbelonging to the Administrators operating system group.If the user credentials cannot beauthenticated,the user is denied access.After logging into HP SMH as one of the initiallyallowed users,you can use the Security Settings to grant access to users in different operatingsystem groups.NOTE:In most cases,the administrator on Windows and root on HP-UX or Linux haveadministrator access on HP SMH.5.Enter the password that is recognized by the operating system.6.On HP-UX,click Sign In.On Linux and Windows,click Login.System ManagementHomepage appears.Starting HP SMH from Mozilla or FirefoxTo log in to HP SMH with Mozilla or Firefox:10Getting Started1.Navigate to https://hostname:2381/.NOTE:If you are browsing to an HP-UX server,by default you must instead use the URI:http://hostname:2301/.By default,HP-UX is installed with the autostart feature enabled.A daemon listens onport2301and only starts HP SMH on port2381when requested,then stops it again after atimeout period.You can also configure HP SMH to always be running on port2381.See thesmhstartconfig(1M)command for more information.If the Start on Boot feature is enabled(instead of autostart)a message window explains the security features.You can wait afew seconds to be redirected to port2381or click the link at the bottom of the message.TheSystem Management Homepage Login page will appear.You can find procedures on how to change the configuration variables in the HP SystemManagement Homepage Installation Guide on the HP Technical Documentation Web site at.The first time you browse to the URI,the Website Certified by an Unknown Authoritydialog box appears,asking you to indicate whether to trust the server.If you do not selectAccept this certificate permanently,the Website Certified by an Unknown Authoritydialog box appears every time you use a browser.2.Click OK.The Login page appears.If you have enabled Anonymous access,then System ManagementHomepage appears.3.Enter your user name that is recognized by the operating system.On HP-UX,HP SMH initially only allows access to the root user,on Linux access is initiallyallowed to users belonging to the root operating system group,and on Windows to usersbelonging to the Administrators operating system group.If the user credentials cannot beauthenticated,the user is denied access.After logging into HP SMH as one of the initiallyallowed users,you can use the Security Settings to grant access to users in different operatingsystem groups.NOTE:In most cases,the administrator on Windows and root on HP-UX and Linux haveadministrator access on HP SMH.4.Enter the password that is recognized by the operating system.5.On HP-UX,click Sign In.On Linux and Windows,click Login.System Management Homepage appears.Starting HP SMH from HP SIMTo start HP SMH by logging in to HP SIM with a Web browser:Logging In111.Navigate to https://hostname:50000/.The first time you browse to this link,the Security Alert dialog box is displayed,askingyou to indicate whether to trust the server.If you do not import the certificate,the SecurityAlert is displayed every time you browse to HP SIM.NOTE:If you want to implement your own Public Key Infrastructure(PKI)or install yourown generated certificates into each managed system,you can install a certificate authorityRoot Certificate into each browser to be used for management.If this is implemented,theSecurity Alert dialog box does not appear.If the alert is displayed when you do not expectit,you might have browsed to the wrong system.You can refer to the online help in yourbrowser for more information about installing the certificate authority Root Certificate.2.Click Yes.The Login page is displayed.3.Enter a user name that is recognized by the operating system.4.Enter a password that is recognized by the operating system.5.Click Sign In.6.Select Tools→System Information→System Management Homepage.7.Select a target system from the list.8.Select a checkbox next to a target system.Click Apply.9.Verify the target system by selecting a checkbox next to the system.Click Run Now.The Security Alert dialog box is displayed,asking you to indicate whether to trust theserver.If you do not import the certificate,the Security Alert is displayed every time youbrowse to HP SMH.The System Management Homepage is displayed.Starting from the HP-UX Command LineWhen you run either the sam or smh command and the DISPLAY environment variable is set,HP SMH opens in the default web browser.If the DISPLAY environment variable is not set,HP SMH opens in the TUI.Most of the applications for performing administration tasks are nowavailable through the web-based GUI interface and an enhanced TUI.However,few applications continue to open in ObAM based X-windows or ObAM based TUI.You are recommended to use the smh(1M)command.However,the sam(1M)command willcontinue to be available and behave just as the smh(1M)command.Some of the functional areas previously available for system administration are obsolete.These areas are listed in the HP-UX 11i Release Notes available on the HP Technical documentation web site at . HP SMH Management ServerBy default,the HP SMH management server under HP-UX only starts on demand.It does not run continually.A daemon listens on port2301to start an instance of the management server.On Linux,HP SMH is started on boot.Related Topics•Getting Started•Configuring Firewall Settings•Automatically Importing Certificates•Logging Out•HP SMH Pages12Getting Started。
hosts文件配置异常的解决方法一、主题概述1.1 问题背景在日常使用电脑上网时，我们经常会遇到一些网页打不开、域名解析失败等问题，其中可能有一部分是由于hosts文件配置异常所导致的。
1.2 主题重要性hosts文件是一个网络位置区域映射文件，它可以用来指定特定的域名对应的IP位置区域，进而实现域名解析。
正确配置hosts文件对于保证网络访问的顺畅和安全至关重要。
然而，一旦hosts文件配置出现异常，就会给我们的网络访问带来困扰，因此理解并解决hosts文件配置异常的方法具有重要的实际意义。
1.3 本文重点本文将从hosts文件配置异常的成因、常见表现和解决方法等方面展开，帮助读者全面了解并解决这一问题。
二、hosts文件配置异常的成因分析2.1 误操作在对hosts文件进行编辑时，如果操作不慎可能会导致配置异常。
误删或误修改已有的记录，或者在hosts文件中添加不合法的内容，都有可能引发配置异常。
2.2 恶意软件某些恶意软件可能会修改hosts文件，将一些常见的网络位置区域重定向到恶意站点，从而实施网络钓鱼或其他攻击。
这种情况下，hosts 文件配置异常往往是用户无意间造成的。
2.3 系统错误在一些情况下，系统自身的错误或异常也可能导致hosts文件配置出现问题。
三、hosts文件配置异常的常见表现3.1 网页打不开当hosts文件中的某个域名被错误地解析到了无效的IP位置区域时，访问该域名的网页可能会无法打开，或者跳转到错误的页面。
3.2 域名解析失败在命令行或浏览器中执行ping命令或访问某个全球信息湾时，如果出现域名解析失败的提示，很可能是hosts文件配置异常所致。
3.3 被重定向至其他全球信息湾在浏览某些全球信息湾时，可能会被自动重定向至一些奇怪或恶意的站点，这同样可能是hosts文件配置异常的表现。
四、解决hosts文件配置异常的方法4.1 恢复备份如果你曾经为hosts文件做过备份，可以尝试将备份文件恢复到系统目录中，从而撤销对hosts文件的误操作。
解决Docker启动Elasticsearch7.x报错的问题使⽤Docker run 命令docker run -d -p 9200:9200 -p 9300:9300 --name ⽤户⾃定义名字容器ID会看到⼀串字符串，⼀般情况下我们会误以为它启动成功我们执⾏docker ps -a是发现它⾃动退出了使⽤docker logs -f 容器ID 查看⽇志发现：ERROR: [1] bootstrap checks failed[1]: max virtual memory areas vm.max_map_count [65530] likely too low, increase to at least [262144][2]: the default discovery settings are unsuitable for production use; at least one of [discovery.seed_hosts, discovery.seed_providers, cluster.initial_master_nodes] must be configured错误提⽰告诉我们是ES需要jvm内存太⼤了，所有我们需要改⼀下配置，执⾏下⾯代码sysctl -w vm.max_map_count=262144然后输⼊下列命令运⾏⼀下：docker run -d -e ES_JAVA_POTS="-Xms256m -Xmx256m" -p 9200:9200 -p 9300:9300 --name ES3 8f46db60ddd6查看⽇志发现还是报错：ERROR: [1] bootstrap checks failed[1]: the default discovery settings are unsuitable for production use; at least one of [discovery.seed_hosts, discovery.seed_providers, cluster.initial_master_nodes] must be configured解决⽅法如下：docker run -d -e ES_JAVA_POTS="-Xms256m -Xmx256m" -e "discovery.type=single-node" -p 9200:9200 -p:9300 --name ES3 8f46db60ddd6最终就启动成功了！补充知识：docker安装elasticsearch 6.4.3 停⽌先打印⽇志docker logs 9dcea100677bOpenJDK 64-Bit Server VM warning: Option UseConcMarkSweepGC was deprecated in version 9.0 and will likely be removed in a future release.[2019-11-15T07:22:07,906][INFO ][o.e.n.Node ] [] initializing ...[2019-11-15T07:22:08,101][INFO ][o.e.e.NodeEnvironment ] [d37UOiC] using [1] data paths, mounts [[/ (rootfs)]], net usable_space [33.4gb], net total_space [39.2gb], types [rootfs][2019-11-15T07:22:08,102][INFO ][o.e.e.NodeEnvironment ] [d37UOiC] heap size [503.6mb], compressed ordinary object pointers [true][2019-11-15T07:22:08,111][INFO ][o.e.n.Node ] [d37UOiC] node name derived from node ID [d37UOiCyRQyKTBz5CfI0HQ]; set [] to override[2019-11-15T07:22:08,111][INFO ][o.e.n.Node ] [d37UOiC] version[6.4.3], pid[1], build[default/tar/fe40335/2018-10-30T23:17:19.084789Z], OS[Linux/3.10.0-1062.1.2.el7.x86_64/amd64], JVM["Oracle Corporation"/OpenJDK 64-Bit Server VM/10.0.2/10.0.2+13] [2019-11-15T07:22:08,111][INFO ][o.e.n.Node ] [d37UOiC] JVM arguments [-Xms1g, -Xmx1g, -XX:+UseConcMarkSweepGC, -XX:CMSInitiatingOccupancyFraction=75, -XX:+UseCMSInitiatingOccupancyOnly, -XX:+AlwaysPreTouch, -Xss1m, -Djava.awt.headle [2019-11-15T07:22:11,943][INFO ][o.e.p.PluginsService ] [d37UOiC] loaded module [aggs-matrix-stats][2019-11-15T07:22:11,944][INFO ][o.e.p.PluginsService ] [d37UOiC] loaded module [analysis-common][2019-11-15T07:22:11,944][INFO ][o.e.p.PluginsService ] [d37UOiC] loaded module [ingest-common][2019-11-15T07:22:11,944][INFO ][o.e.p.PluginsService ] [d37UOiC] loaded module [lang-expression][2019-11-15T07:22:11,944][INFO ][o.e.p.PluginsService ] [d37UOiC] loaded module [lang-mustache][2019-11-15T07:22:11,945][INFO ][o.e.p.PluginsService ] [d37UOiC] loaded module [lang-painless][2019-11-15T07:22:11,945][INFO ][o.e.p.PluginsService ] [d37UOiC] loaded module [mapper-extras][2019-11-15T07:22:11,945][INFO ][o.e.p.PluginsService ] [d37UOiC] loaded module [parent-join][2019-11-15T07:22:11,945][INFO ][o.e.p.PluginsService ] [d37UOiC] loaded module [percolator][2019-11-15T07:22:11,945][INFO ][o.e.p.PluginsService ] [d37UOiC] loaded module [rank-eval][2019-11-15T07:22:11,945][INFO ][o.e.p.PluginsService ] [d37UOiC] loaded module [reindex][2019-11-15T07:22:11,945][INFO ][o.e.p.PluginsService ] [d37UOiC] loaded module [repository-url][2019-11-15T07:22:11,945][INFO ][o.e.p.PluginsService ] [d37UOiC] loaded module [transport-netty4][2019-11-15T07:22:11,945][INFO ][o.e.p.PluginsService ] [d37UOiC] loaded module [tribe][2019-11-15T07:22:11,945][INFO ][o.e.p.PluginsService ] [d37UOiC] loaded module [x-pack-core][2019-11-15T07:22:11,945][INFO ][o.e.p.PluginsService ] [d37UOiC] loaded module [x-pack-deprecation][2019-11-15T07:22:11,945][INFO ][o.e.p.PluginsService ] [d37UOiC] loaded module [x-pack-graph][2019-11-15T07:22:11,945][INFO ][o.e.p.PluginsService ] [d37UOiC] loaded module [x-pack-logstash][2019-11-15T07:22:11,945][INFO ][o.e.p.PluginsService ] [d37UOiC] loaded module [x-pack-ml][2019-11-15T07:22:11,945][INFO ][o.e.p.PluginsService ] [d37UOiC] loaded module [x-pack-monitoring][2019-11-15T07:22:11,945][INFO ][o.e.p.PluginsService ] [d37UOiC] loaded module [x-pack-rollup][2019-11-15T07:22:11,945][INFO ][o.e.p.PluginsService ] [d37UOiC] loaded module [x-pack-security][2019-11-15T07:22:11,946][INFO ][o.e.p.PluginsService ] [d37UOiC] loaded module [x-pack-sql][2019-11-15T07:22:11,946][INFO ][o.e.p.PluginsService ] [d37UOiC] loaded module [x-pack-upgrade][2019-11-15T07:22:11,946][INFO ][o.e.p.PluginsService ] [d37UOiC] loaded module [x-pack-watcher][2019-11-15T07:22:11,946][INFO ][o.e.p.PluginsService ] [d37UOiC] loaded plugin [ingest-geoip][2019-11-15T07:22:11,946][INFO ][o.e.p.PluginsService ] [d37UOiC] loaded plugin [ingest-user-agent][2019-11-15T07:22:17,086][WARN ][o.e.d.s.ScriptModule ] Script: returning default values for missing document values is deprecated. Set system property '-Des.scripting.exception_for_missing_value=true' to make behaviour compatible with future major versio [2019-11-15T07:22:23,590][INFO ][o.e.x.s.a.s.FileRolesStore] [d37UOiC] parsed [0] roles from file [/usr/share/elasticsearch/config/roles.yml][2019-11-15T07:22:24,507][INFO ][o.e.x.m.j.p.l.CppLogMessageHandler] [controller/62] [@109] controller (64 bit): Version 6.4.3 (Build 7a0781676dd492) Copyright (c) 2018 Elasticsearch BV[2019-11-15T07:22:26,142][INFO ][o.e.d.DiscoveryModule ] [d37UOiC] using discovery type [zen][2019-11-15T07:22:28,041][INFO ][o.e.n.Node ] [d37UOiC] initialized[2019-11-15T07:22:28,041][INFO ][o.e.n.Node ] [d37UOiC] starting ...[2019-11-15T07:22:28,297][INFO ][o.e.t.TransportService ] [d37UOiC] publish_address {172.18.0.2:9300}, bound_addresses {[::]:9300}[2019-11-15T07:22:28,350][INFO ][o.e.b.BootstrapChecks ] [d37UOiC] bound or publishing to a non-loopback address, enforcing bootstrap checksERROR: [1] bootstrap checks failed[1]: max virtual memory areas vm.max_map_count [65530] is too low, increase to at least [262144][2019-11-15T07:22:28,406][INFO ][o.e.n.Node ] [d37UOiC] stopping ...[2019-11-15T07:22:28,423][INFO ][o.e.n.Node ] [d37UOiC] stopped[2019-11-15T07:22:28,423][INFO ][o.e.n.Node ] [d37UOiC] closing ...[2019-11-15T07:22:28,457][INFO ][o.e.n.Node ] [d37UOiC] closed[2019-11-15T07:22:28,460][INFO ][o.e.x.m.j.p.NativeController] Native controller process has stopped - no new native processes can be started感觉应该是jvm参数配置有问题先[root@iZ2ze9gna8ev4h0rme8ph0Z ~]# sudo sysctl -w vm.max_map_count=262144再docker run -d -p 9200:9200 -p 9300:9300 -e ES_JAVA_OPTS="-Xms512m -Xmx512m" -e -Des.scripting.exception_for_missing_value=true --name elasticsearch docker.io/elasticsearch:6.4.3即可解决！以上这篇解决Docker启动Elasticsearch7.x报错的问题就是⼩编分享给⼤家的全部内容了，希望能给⼤家⼀个参考，也希望⼤家多多⽀持。
解决污染问题的思路英语作文Addressing Pollution: A Thought ProcessPollution has become a global concern, affecting the environment, human health, and the sustainability of our planet. To effectively tackle this issue, a structured approach is necessary. Here's a thought process on how to approach the problem of pollution.Awareness and EducationThe first step is to raise awareness among the public about the seriousness of pollution and its impact on our lives. Educational programs and campaigns should be conducted to inform people about the different types of pollution, their causes, and the measures that can be taken to reduce them.Policy and Legislative MeasuresGovernments should play a pivotal role in addressing pollution. They should introduce stringent environmental laws and policies to regulate industrial emissions, promote sustainable practices, and encourage the use of renewable energy sources.Innovation and TechnologyTechnology can play a crucial role in solving pollution problems. Innovations in clean energy, waste management, and pollution control technologies can help reduce emissions and improve efficiency. Governments and private sectors should invest in research and development to promote these technologies.Community Engagement and CollaborationCommunities should be encouraged to participate in pollution control efforts. This could include local initiatives such as recycling programs, clean-up campaigns, and sustainable living practices. Collaboration between governments, communities, and private sectors can help scale up these efforts and achieve greater impact.International CooperationPollution is a global problem that requires global solutions. Nations should work together to share best practices, technologies, and resources to address pollution. International organizations and platforms can facilitate this cooperation and promote global environmental sustainability.In conclusion, addressing pollution requires a multifaceted approach that involves awareness and education, policy and legislative measures, innovation and technology, community engagement and collaboration, and international cooperation. By working together, we can protect ourenvironment, improve human health, and ensure a sustainable future for all.译文：解决污染问题的思路污染已成为全球关注的问题，影响着环境、人类健康和地球的可持续性。
水污染现像和成因和应对措施英语作文全文共5篇示例，供读者参考篇1Water Pollution: A Serious Problem We Must SolveHi friends! Today I want to talk to you about a very important topic - water pollution. Water is one of the most precious resources on our planet. We need clean water to drink, to bathe, to grow crops, and for many other uses. But sadly, much of the world's water is getting dirty and polluted.What is water pollution? It means that harmful substances are getting mixed into lakes, rivers, oceans and other water sources. These pollutants can be chemicals, trash, sewage and other nasty things that make the water unsafe and unfit for use.There are many different causes of water pollution. Let me tell you about some of the main ones:Factories and industrial waste - Big factories that make things like cars, steel, paper and chemicals often release harmful liquids and chemicals into rivers and lakes as waste. This industrial pollution is very dangerous for water bodies.Sewage and waste water - The dirty water from our homes that goes down drains and toilets has to go somewhere. If this sewage is not properly treated before release, it can pollute rivers and seas.Oil spills - When there are accidents with oil tankers or offshore rigs, huge amounts of thick black oil can leak out into the ocean. This oil spill kills many marine animals and plants.Plastic waste - People litter and dump so much plastic into water bodies. This plastic takes hundreds of years to decompose and severely pollutes the waters, choking fish and other aquatic life.Agricultural runoff - The chemicals used in farms like fertilizers, pesticides and animal waste can get washed into rivers and lakes, polluting them heavily.Acid rain - When air pollution from factories and vehicles reacts with rain, it creates acid rain which is very harmful for water sources like lakes.Global warming - As the planet gets hotter due to climate change, it is causing glaciers to melt faster. This melted ice water can contaminate freshwater supplies.As you can see, there are many different causes for water pollution from human activities. But what this pollution does is very bad for the environment:It kills millions of plants, fish, birds and other aquatic organisms that live in these water bodies.It deprives humans and animals of safe drinking water sources.It damages entire ecosystems and disrupts the delicate food chains that exist in water bodies.It causes diseases like cholera, diarrhea, hepatitis and more in people who consume the polluted water.We simply cannot afford to let our vital water supplies remain polluted and poisoned. So what can we do about it? Here are some measures we must take:Have strict laws against dumping waste into water bodies by people, industries and farms. Those who break these laws must be punished.All factories must be forced to properly treat their waste water before release into rivers and seas. The government should regularly inspect and monitor them.Cities must set up effective sewage treatment plants to clean waste water before releasing it into water sources.Promote recycling and proper garbage disposal everywhere to prevent littering of trash and plastic into waters.Educate people on the need to save water and keep it clean. We should not waste or pollute this precious resource anymore.Clean up pollution sources like plastic waste, chemical spills, oil slicks from water bodies in a safe way.Prevent practices like overfishing that disrupt and damage aquatic ecosystems which are vital for health water bodies.Move towards eco-friendly "green" industrial processes, organic farming practices and renewable energy sources to cut down on pollution.Plant more trees and vegetation along river banks and coastal areas to absorb industrial effluents and filter out pollutants from the water.Have global cooperation between countries to jointly tackle the water crisis through better policies, technology sharing and conservation efforts.Each one of us can also do our small bit by reducing waste, saving water at home, not littering, and being more environmentally conscious in our daily lives.If we take concerted action through strong laws, sustainable practices, public awareness and modern technology solutions, I am confident we can solve the global water pollution crisis. We owe it to our planet, to our future generations, and to all life on Earth to save our precious, life-giving water sources from pollution. A clean environment with pure water for all is possible if we try hard enough. Thank you!篇2Water Pollution: A Huge Problem We Need to SolveHi friends! Today I want to talk to you about a very serious issue facing our planet - water pollution. It's a big problem that we all need to understand and work together to fix.What is Water Pollution?Water pollution happens when yucky stuff gets into water sources like rivers, lakes, and oceans. This nasty stuff can be chemicals, garbage, sewage, and other gross things that make the water dirty and unsafe.There are many types of water pollution, but some of the most common are:Chemical pollution - This is when harmful chemicals from factories, farms, and homes get into the water.Plastic pollution - We use way too much plastic, and a lot of it ends up in the oceans, lakes, and rivers. This plastic can hurt or even kill fish, turtles, whales, and other sea creatures.Oil pollution - Oil spills from ships, offshore drilling, and other sources are very bad for the environment and water.Sewage pollution - When toilet waste isn't properly treated before entering water sources, it makes the water really gross and spreads germs that make people and animals sick.What Causes Water Pollution?There are lots of different causes of water pollution, but basically it happens when people are being irresponsible and don't take care of the environment. Some of the main causes are:Improper waste disposal - When factories, homes, and businesses just dump their trash and chemicals anywhere instead of getting rid of it the right way, it pollutes water.Oil spills and leaks - When oil pipelines, offshore rigs, or ships spill or leak oil into the ocean, it's a huge mess that's super harmful.Sewage and runoff from farms and cities - Poop and chemical fertilizers from farms, as well as trash and pollution from cities, often ends up in rivers, lakes, etc.Plastic overuse - Humans use way too much plastic, and a lot of it gets thrown away improperly and ends up polluting the oceans and other waters.Why is Water Pollution Bad?Water pollution is really, really harmful and dangerous in so many ways:It makes water unsafe to drink, cook with, and bathe in - Polluted water spreads diseases and makes people very sick.It harms animals and plants that live in the water - Fish, turtles, whales, coral reefs, and other creatures can get sick or die from polluted waters.It reduces the amount of clean, safe water available - With more pollution, there is less fresh, usable water for drinking, agriculture, and daily needs.It causes harm to the whole environment - Pollution in one area affects air, soil, and life in other areas too. The impacts spread widely.How Can We Stop Water Pollution?Luckily, even though water pollution is a huge problem, there are things we can all do to help stop it! Here are some solutions:Properly dispose of chemicals, trash, and other waste - Don't just dump stuff anywhere! Recycle, use proper waste facilities, and be responsible.Use less plastic and stop littering - The less plastic we use, the less will end up polluting waters. We need to reduce, reuse, and recycle!Support clean alternatives and greentech - Things like renewable energy, electric cars, and sustainable practices create less pollution.Don't waste water - The less water we waste, the less will get polluted and go down the drain. Conserve water at home and school.Volunteer for cleanups - Getting involved in cleaning up rivers, beaches, and parks makes a big difference!Tell others about the problem - More people need to understand how bad water pollution is so they can change habits too.We Can Make a Difference!I know this was a lot of serious information about a major environmental issue. But I really hope you understand now why water pollution is so harmful and why we all need to take action against it. Even kids can help a ton just by making smarter choices and spreading awareness.If we all work together as a team to use less plastic, conserve water, properly dispose of waste, and keep our waters clean, we can solve this problem! Our beautiful rivers, lakes, and oceans will be healthier. And we'll also be healthier from having more clean, safe water to drink and use.It's going to take effort from everyone - grown-ups, kids, leaders, scientists, and people all over the world. But I know we can do it if we try hard enough. The Earth is our one and only home, so we need to take great care of it. Let's make our planet's waters clean and pollution-free!What do you think? Are you ready to be part of the solution against water pollution? Let me know what other questions youhave, and what ideas you have for how we can protect our precious water resources. Working together, we can create a better, cleaner world for all!篇3Water Pollution - A Big Problem We Need to FixHi there! My name is Emily and I'm going to tell you all about water pollution. It's a really big issue that affects the whole planet and all of us who live here. But don't worry, I'll also share some ways we can help make things better!What is Water Pollution?Water pollution happens when yucky stuff gets into water sources like rivers, lakes, and oceans. This nasty stuff can be chemicals, trash, sewage from toilets, or other gross things. When too much pollution gets into the water, it makes the water dirty and harmful to plants, animals, and people.Some Signs of Polluted WaterHow can you tell if water is polluted? Here are some signs:• It looks cloudy or discolored instead of clear• It has a funny smell• There's trash or slimey stuff floating in it• There's foam or scum on the surface• Fish or plants can't survive in itIf you see any of those things, that's a good indication the water is too polluted and not safe to drink or play in.Causes of Water PollutionNow let's talk about what actually causes water pollution in the first place. There are quite a few different culprits:Sewage/Waste - When toilets get flushed, that sewage (pee and poop) has to go somewhere. If not properly treated, it can end up polluting water sources.Agriculture - Farms use fertilizers and pesticides on their crops. When it rains, some of those chemicals can get washed into nearby rivers and lakes.Manufacturing/Industry - Factories that make things like clothing, cars, and electronics sometimes release harmful chemicals into the water as waste.Trash/Litter - When people litter or don't dispose of their trash properly, things like plastics, cans, and styrofoam can blow into waterways.Oil Spills - Big oil spills from ships, pipelines, or drilling operations can dump massive amounts of oil into the ocean, harming marine life.Household Products - Even chemicals we use at home for cleaning, painting, or yard work can pollute if they get washed into storm drains.Effects of Polluted WaterWhy is polluted water such a big deal? Well, it can have all kinds of nasty effects:• It can make people, animals, and plants really sick if they drink it or are exposed to it.• Chemicals in the water can contaminate the food chain when microorganisms absorb them.• It reduces the amount of water available for drinking, bathing, and fun activities like swimming.• It threatens and destroys habitats for fish, birds, plants and other wildlife.• It can spread diseases carried by organisms that thrive in polluted environments.• It messes up entire ecosystems and food webs that depend on clean water.As you can see, keeping our water clean is super important for everyone's health and survival!What Can We Do?The good news is there are lots of things we can do as individuals, families, and communities to reduce water pollution. Here are some ideas:At Home:• Don't pour chemicals, oils, paints or other household products down drains• Limit use of fertilizers and pesticides on lawn s/gardens• Fix leaky cars that can drip oil and fluids• Pick up after your pets so their waste doesn't wash into storm drains• Use environmentally-friendly soaps, detergents, and cleaning products• Reduce, reuse, recycle!At School/Community:• Organize litter cleanups along rivers, lakes and beaches• Start a recycling program at your school• Plant trees and plants along waterways to prevent soil erosion• Write to government leaders asking for stronger pollution laws• Educate friends and neighbors about how to prevent water pollutionTogether we can keep our waters free of pollution so they stay clean and healthy for drinking, swimming, fishing and all sorts of fun! Every little bit helps, so let's all do our part.Thanks for reading, friends! I hope you learned a lot about the problems caused by water pollution and ways we can work together to fix it. The future of our planet's waters is in our hands.篇4Water Pollution: A Big Problem We Need to SolveHi there! My name is Alex, and I'm here to tell you all about water pollution. It's something that affects every living thing onour planet, including plants, animals, and even us humans! So, let's dive in and learn more about this important issue.What is Water Pollution?Water pollution happens when dirty things get into our water sources like rivers, lakes, and oceans. These dirty things are called pollutants, and they can be all sorts of nasty stuff like chemicals from factories, trash, and even sewage (that's another word for poop and pee!). When these pollutants get into the water, they make it unsafe for animals and people to drink or swim in.Where Does Water Pollution Come From?Water pollution can come from many different places, but here are some of the biggest causes:Factories and Industries: Some factories make a lot of chemicals and waste that can end up in our water if they're not careful.Agriculture: Farms use a lot of fertilizers and pesticides to help their plants grow. If too much of these chemicals get into the water, it can cause pollution.Sewage and Wastewater: When people flush their toilets or wash their dishes, the dirty water (called sewage or wastewater)has to go somewhere. If it's not treated properly, it can pollute our rivers and lakes.Oil Spills: Sometimes, ships carrying oil have accidents and spill their cargo into the ocean. This can be really bad for the fish and other sea creatures.Litter and Trash: When people throw their trash on the ground instead of in the trash can, it can eventually end up in our waterways and pollute them.Why is Water Pollution Bad?Water pollution is a big problem because it can make people and animals really sick. Here are some of the ways it can harm us:Unsafe Drinking Water: When water is polluted, it's not safe to drink because it might have germs or chemicals in it that can make us sick.Harms Animals and Plants: Polluted water can kill fish, birds, and other animals that live in or near the water. It can also damage plants that need clean water to grow.Damages Ecosystems: When the water in a river, lake, or ocean is polluted, it can harm the whole ecosystem (that's the word for all the living things in an area and how they depend on each other).Spreads Diseases: Polluted water can spread diseases like cholera, typhoid, and dysentery, which can make a lot of people very sick.What Can We Do About Water Pollution?I know all of this sounds pretty scary, but don't worry! There are lots of things we can do to help stop water pollution and keep our water clean. Here are some ideas:Don't Litter: Always throw your trash in the trash can or recycle bin. If you see litter on the ground, pick it up and throw it away properly.Save Water: The less water we use, the less wastewater we create. You can save water by taking shorter showers, turning off the faucet while brushing your teeth, and not letting the water run when you're not using it.Use Fewer Chemicals: Try to use fewer chemicals like pesticides and fertilizers in your garden or yard. These chemicals can end up in our water and pollute it.Pick Up After Your Pets: When you take your dog for a walk, be sure to pick up their poop and throw it away properly. Dog poop can pollute our water if it's left on the ground.Support Clean Water Laws: There are laws that try to keep our water clean, but sometimes they need to be updated or changed. You can write to your government representatives and ask them to support laws that protect our water.We Can Make a Difference!Water pollution is a big problem, but it's not impossible to solve. If we all do our part and work together, we can keep our water clean and safe for everyone and everything that needs it to survive. Remember, every little bit helps! So, let's all pitch in and take care of our precious water resources.Thanks for learning about water pollution with me today. Until next time, keep being awesome and keep our water clean!篇5Water Pollution: A Big Problem We Must Fix!Hey friends! Today I want to talk about a super important topic – water pollution. It's a major issue affecting the whole world, and we need to do something about it quickly before it gets even worse.What is water pollution? It's when too many yucky things get into our lakes, rivers, oceans and other water sources. Thesepollutants can be chemicals, trash, oil, sewage and much more. They make the water unsafe for animals and people.There are lots of different causes of water pollution. One major cause is industrial waste from factories. They dump tons of toxic chemicals and pollutants right into the water! Another big cause is mining and drilling for resources like oil. This process allows many harmful substances to leak out.Agriculture is also a big contributor to water pollution. Farmers use fertilizers and pesticides on their crops, and when it rains, this toxic stuff gets washed into the waterways. Sewage and wastewater from cities is another major culprit too. Sometimes treatment plants don't work properly and raw sewage ends up in rivers and oceans.Do you know what else causes water pollution? Littering and dumping trash! People are really bad about throwing bottles, bags, and other garbage into lakes and seas. Marine debris is especially dangerous for sea creatures who can get tangled up in it or accidentally eat it.You might be wondering why water pollution is such a big deal. Well, polluted water is hazardous to all life on Earth! For humans, drinking or swimming in contaminated water can causediseases like cholera, giardia, and typhoid fever. It can also cause cancers, birth defects, and other health issues over time.But humans aren't the only victims – pollution devastates aquatic ecosystems too. Many species of fish, plants, birds, and other marine life have gone extinct because of polluted waters. Chemicals and trash make it impossible for them to survive. Oceans are hit especially hard, with dead zones and oil spills causing major harm.Yikes, this all sounds pretty scary, right? The good news is that we can help stop water pollution if we try! Here are some tips:• Don't litter! Properly dispose of trash, recycling what you can.• Use fewer plastic products like bottles, bags and straws.• Don't pou r chemicals, oils, or toxic substances down drains.• Support companies that dispose of waste responsibly.• Volunteer for beach/river clean-ups in your community.• If you're a farmer, explore organic fertilizers.• Write letters to leader s asking for stronger pollution laws.Governments and companies need to do their part too by developing greener practices and enforcing stricter regulations around dumping waste into water sources. We also need to continue developing better ways to manage wastewater and recycle/renew resources.I know it seems like a huge, difficult problem to tackle. But every little bit helps! If we all work together and make an effort, we can slowly but surely start to reduce global water pollution. We simply have to for the sake of species survival – ours included! Our drinking water, food sources, and environmental health all depend on keeping our oceans, lakes and rivers clean and safe.What's your family doing to prevent water pollution? Have you noticed polluted waters in your town? Spread awareness about this critical issue by telling others what you've learned. We can create a better future, but only if we act now! Let's be Water Pollution Prevention Heroes!。
Machine Configurator quick start guideIntroductionEaton’s Machine Configurator is a Microsoft® Windows®-based software that helpsmanage Eaton configuration tools such as Power Xpert inControl, XSOFT-CODESYS,and Galileo. This guide provides instructions on how to use Machine Configuratorto install, uninstall, launch, and update these tools from your laptop/desktop.Cybersecurity is at the core of Eaton’s “secure by design” philosophy. Our securedevelopment approach helps us manage cybersecurity risks in our productsthrough the entire product life cycle—from threat modeling, requirements analysisimplementation and verification, to ongoing maintenance. Machine Configuratorhas been tested by an authorized UL® cybersecurity test lab, following industryestablished frameworks and standards. Eaton’s Cybersecurity Center of Excellence(CCoE) is committed to ensuring our customers are aware of the importance ofcontinuing to review, implement, and maintain recommended cybersecuritybest practices.Machine Configurator system requirements • Software: Microsoft Windows 10 or 11 (32-bit or 64-bit)• Screen resolution: 1280x1024 pixels or higher resolutionUser registrationBefore you can use and log into Machine Configurator, you need to be registered. Click Register Now! to begin. You will be re-directed to the Registration page. Follow the online instructions to complete your registration.Log inAfter you have completed registration, click Log in on the Machine Configurator window.On the Sign In page, enter your Username and click Next.Enter your Password and click Verify .To reset password:1. Click Change Password . The Reset Password windowwill open.2. Enter your email address and click Reset via Email .3. Follow the online instructions to change the password.Log outClick the user icon in the upper right side of the blue bar. Select Log outfrom the dropdown menu to exit the portal.2EATON Machine Configurator quick start guideMachine Configurator home pageMachine Configurator provides several features to manage different configuration tools(see screenshot below). Machine Configurator has three main sections:• Installed Apps• Available Apps• NewsInstalled AppsMachine Configurator will search for the applications installed on the laptop/desktop.After the search is complete, all installed applications and their respective versions will be displayed inthe Installed Apps section.N See Supported Applications on page 5 for more information about the Eaton applications.ote:In the Installed Apps window, you can launch or see additional information about that specific application.3EATON Machine Configurator quick start guideTo display information about the application before it is launched, select View More. Please refer to Product Specific Page on page 7 for more details.Choose the application you want to install and click Launch.If there are multiple versions of the application, select the version you want from the dropdown options and then click Launch.Available AppsApplications that are available to install and update are listed in Available Apps section. SelectLearn more to display additional information about the application. (See Product Specific Pageon page 7.)4EATON Machine Configurator quick start guideSupported applicationsMachine Configurator supports the following Eaton applications:Power Xpert inControlPower Xpert inControl device configuration and control software makes programming networked drives and soft starters quick and easy. It provides a processor-generic, simple interface for configuration, monitoring, troubleshooting, firmware gradation, and logic editing functionality using communication protocols. Power Xpert inControl software supports the latest version update. An older version on the laptop/desktop can be launched, uninstalled, or updated; however, multiple versions of Power Xpert inControl cannot be installed on the same laptop/desktop.On availability of the newest version of the application, Machine Configurator will show the details in the product specific page and update the available tag. For more information, please visit Eaton’s Power Xpert inControl configuration software webpage.XSOFT-CODESYSXSOFT-CODESYS software is the ideal programming tool for machine and process applications in machine building and system integration. The software is the perfect solution for all applications in which a powerful PLC or HMI-PLC with various field bus connections is required.XSOFT-CODESYS supports the installation of multiple software versions on the same system and all versions can be managed on the laptop/desktop. Machine Configurator supports the followingXSOFT-CODESYS versions:On availability of the application’s newest version, Machine Configurator will show the details in the product specific page and update the available tag. For more information, visit Eaton’s XSOFT-CODESYS programming software webpage.GalileoGalileo is an intuitive, easy-to-learn and powerful project design environment that fulfills almost all requirements of an on-site machine operation. With its non-sector specific concept, the visualization software offers seamless project design for allXV/XP operator panels and all PC run-time solutions. It providesfull functionality for the project designer at any time without any gradation restrictions on variables or screens.With only a few clicks, existing Galileo visualizations can be turned into web visualizations, which then enables remote/mobile operation as well.Galileo supports installing multiple versions on the same system and all versions can be managed on the laptop/desktop. MachineConfigurator supports the following Galileo versions:On availability of the application’s newest version, Machine Configurator will show the details in the product specific page and update the available tag. For product specific details, visit Eaton’s Galileo webpage.NewsThe News section lists all the latest updates from Eaton, including application updates and new releases.The Help section can be used for customer support information.5 EATON Machine Configurator quick start guideTo view All News, click View All.Click the news title to display the entire content.6EATON Machine Configurator quick start guideProduct specific pageThe product specific page displays the product details and the versions installed, and allowsthe user to download and uninstall the available versions on the system.If a new version is available and it is not installed on the system, antag is shown. Click Download to install the update.If you would like to install an older version, select an option from the Older versions dropdown menu.Machine Configurator’s product specific page also displays product Documentation, Tutorialand FAQs.The Documentation section provides resources and product support that can be downloaded and therequired links to useful information to assist the user in effectively operating and using the application.The Tutorial section lists tutorials, learning videos and other instructional aids to help the user becomemore proficient with the application.The FAQs section provides the user with quick and easy access to helpful information and the answersto the most relevent questions.7EATON Machine Configurator quick start guideEaton is a registered trademark.All other trademarks are property of their respective owners.Eaton1000 Eaton Boulevard Cleveland, OH 44122United States ©2024 EatonAll Rights Reserved Printed in USAPublication No. MN040080EN / Z29177August 2024SettingsMachine Configurator offers three system settings to enhance user experience.Minimize to System Tray: When this setting is turned on, the application will continue to run in the background instead of closing completely. You can relaunch the application by using the system tray icon.Language: This setting allows you to choose the preferred language of the tool. Once you select the desired language, all the text and various elements will be displayed in that specific language.All languages other than English are sample texts and are marked as BETA. Valid translations for respective languages will be provided in future updates and the BETA tag will be removed.Update Machine Configurator Automatically: This setting enables the Machine Configurator application to be updated automatically when the latest version becomes available. This new version will be downloaded and updated whenever the application is restarted.To reach an EatonCare representative, please call:+1-877-ETN-CARE or +1-877-386-2273 (USA)+1-800-268-3578 (Canada)+1-828-651-0786 (International)Follow us on social media to get thelatest product and support information.。
战略管理双语资料(共71页)--本页仅作为文档封面，使用时请直接删除即可----内页可以根据需求调整合适字体及大小--Chapter 1 Strateg ic Ma n a gem e nt a nd Str a tegic Com pe titiven e ss ................... 错误!未定义书签。
Management Process .............................................................................. 错误!未定义书签。
The Rational Model ....................................................................... 错误!未定义书签。
The critique of the rational model .................................................. 错误!未定义书签。
The New Competitive Landscape ........................................................... 错误!未定义书签。
Globalized Competition ................................................................. 错误!未定义书签。
Changes .......................................................................................... 错误!未定义书签。
I/O model of Above-average Returns ..................................................... 错误!未定义书签。
主题：Host error处理方法随着互联网的发展，越来越多的全球信息站和应用程序需要通过服务器来提供服务。
在服务器运行过程中，可能会出现host error的情况，这给全球信息站和应用程序的正常运行带来了一定的影响。
我们有必要了解host error的处理方法，以便及时有效地解决这一问题。
1. 确认host error的具体问题当我们遇到host error的情况时，需要及时确认具体的错误信息。
可能是host无法被解析，host连接超时，host被拒绝等等。
通过查看日志或者使用网络诊断工具，可以帮助我们找到host error的具体问题。
2. 检查网络连接在确认了host error的具体问题之后，需要检查网络连接是否正常。
可以通过ping命令或者traceroute命令来检测host的连通性，以确定host error是否与网络连接有关。
3. 检查host配置针对host error，我们也需要检查host的配置是否正确。
有时候host的IP位置区域可能发生了变化，或者host的域名解析出现了问题，这都会导致host error的情况发生。
需要及时检查host的配置信息，确保其正确性。
4. 检查防火墙设置防火墙在网络安全中扮演着重要的角色，但有时候也会导致host error的情况发生。
在处理host error时，需要检查防火墙的设置，确保它不会阻止host的正常连接。
5. 更新软件和系统补丁有时候host error的情况可能是由于软件或者系统的问题导致的。
及时更新软件和系统补丁，可以帮助我们避免host error的发生。
6. 与服务提供商通联如果以上方法都不能解决host error的问题，我们还可以与host服务提供商通联，寻求帮助和支持。
他们可能可以提供更专业的建议和解决方案，帮助我们解决host error的情况。
在处理host error的过程中，我们需要综合使用以上方法，及时有效地解决host error的问题，保障全球信息站和应用程序的正常运行。
Powerful Mainstream Solution For Modern BusinessesCAP1200KEY FEATURES•802.11AC Dual -Band High Speed: IEEE 802.11ac concurrent dual-band with 1200Mbps wireless speed. •Easy Installation: Ceiling-mount & T-rail mount design with easy installation kit.•Compact & Durable Housing: Ultra slim design with UL94-5VB flame-retardant plastic housing.•Designed for High Density Usage: Supports up to 100* users simultaneously, ideal for crowded environments and BYOD (Bring Your Own Device) workplaces.•Multiple SSIDs for Security Management: Supports up to 32 SSIDs (16 x 2.4GHz & 16 x 5GHz) ideal for multiple departments, user groups, customers or guests.•Fast Roaming: Roams smoothly between APs without lag or interruption, ensuring top performance for video and voice streaming applications.•Wide Coverage & High Sensitivity: Adjustable RF output power and high receiver sensitivity for wide coverage across large spaces.•Seamless Mobility: 1.5x greater coverage than typical APs for blanket coverage to ensure seamless connectivity for Wi-Fi devices across enterprise environments.•Power over Ethernet: Supports IEEE 802.3af PoE as well as included power adapter.•Built -In RADIUS Server: With management for up to 256 user accounts.•Business Environments : Mainstream choice for SMBs. Suitable for a wide range of commercial applications such as offices, hotels, meeting rooms, schools, campuses, resorts, retail and others.•Central Management: Edimax Pro Network Management Suite (NMS) for easy and Intuitive web-based central management. AP built-in with NMS supports AP array architecture.2 x 2 AC Dual-Band Ceiling-Mount PoE Access PointThe CAP1200 is a powerful wireless solution designed to meet the needs of modern mainstream businesses with the latest IEEE 802.11ac technology for wireless speeds up to 1200Mbps. Industrial-grade performance and build quality combined with user-friendly operation, super-fast wireless speed, an extensive feature set and a practical, ceiling-mount design make an ideal dual-band solution for enterprise environments.For businesses that demand security, flexibility and speed – the Edimax Pro series has a wide range of potentialapplications from office environments to schools, campuses, hotels and hospitals. High-density capacity for up to 100* simultaneous users is ideal for BYOD workplaces or other environments with a high volume of users and wireless devices. Multiple SSIDs can be configured for different departments or user groups and a built-in RADIUS server provides additional verification with a scalable AP array architecture for central management of multiple access points. Fast roaming for seamless transitions between access points, Power over Ethernet support (PoE) and an intuitive web-based management interface providesflexibility for deployment and extensive management options for company MIS departments and network administrators.When performance and security are critical for yourbusiness, you need products that are engineered for your industry. The Edimax Pro series is designed to help your business and provide the connectivity that you rely on every day, with safety and effectiveness guaranteed.*The maximum users in 2.4GHz is depends on the interference condition of the environment.SSID 1Finance Dept.SSID 2Sales Dept.SSID 3Guest RoomSSID 4 VoIPWide Coverage & Multiple SSIDsBYOD Solution & High Density NetworkingFast RoamingHotels Offices Schools HospitalsEasy Installation KitCeiling mount and T-rail mount with bracket.2.4GHz2D Radiation Pattern@ Vertical 5GHz2D Radiation Pattern@ Vertical 2.4GHz2D Radiation Pattern@ Horizontal 5GHz2D Radiation Pattern@ Horizontal2.4GHz 5GHzConcurrent Dual-BandCentral Network Management: NMSWork with Edimax Pro NMS (Network Management Suite)* web-based wireless network management software. Company MIS administrators can plan and manage Edimax Pro access points’ powerful functionalityaccording to their office space using an easy, remote web-based interface which includes a dashboard, map view, traffic statistics and wireless client list for network-wide remote administration. RADIUS settings, WLAN group settings, access control, guest network settings and firmware upgrades can all be managed centrally from a single location to reduce network downtime, aid troubleshooting and optimize network performance.Graphical zone plans with Google Maps integration and setup wizards are also available for expanding and managing large networks with multiple access points, with custom floor plans, visual overviews and easy drag-and-drop icons for quick access to key performance and monitoring information.*NMS is built-in with Edimax Pro CAP, WAP series & OAP1750 access point.Hardware LAN Interface Giga x 1PoE 802.3af (Supports 802.3at)Antenna Type: 4 x Built-In PIFA (2 x 2.4GHz, 2 x 5GHz) /Gain: 2.82dBi (2.4GHz), 4dBi (5GHz) Max.Power DC: 12V / 1A802.3af (PoE Injector Optional)Dimensions 17.6 (D) x 3.2 (H) cmWeight305.7g PowerConsumption (Full Loading) 11W Mounting Ceiling Reset Y LED Indicator1. Power LED2. Diag LEDEnvironmental Conditions Operating Temperature: 0°C (32°F) to 40°C (104°F) Storage Temperature: -20°C (-4°F) to 60°C (140°F)Operating Humidity: 90% or Less Storage Humidity: 90% or LessPower Saving 802.3az Internal Buzzer YHousing UL94-5VB Flammability RatingOthers Kensington Security Slot & Ceiling/Wall Mount HolesWireless Standard 802.11 a/b/g/n/ac Concurrent Dual-BandNo. of Radios 2 Receiver Sensitivity ≤ -95dBm Certification CE/FCC 802.11 r/k Fast Roaming 5GHz OnlyNumber of SSIDs 16 (2.4GHz) + 16 (5GHz)Performance Maximum Data Speed300 + 867MbpsConcurrent Clients Up to 100 (50* (2.4GHz) + 50 (5GHz))Security Encryption WEP / WPA / WPA2Wireless L2 Isolation Y Station Isolation Y IEEE 802.1x Authenticator Y EAP Authentication PEAP Hidden SSID Y MAC Address Filter Y Wireless STA Y Rogue APDetection (w/NMS) YSoftware Wireless Mode AP / WDS AP / WDS Bridge802.1q VLAN Y (VID = 1-4095)Spanning Tree RSTP QoSWMM (802.11e) Max Associated Station No. Pass-Through IPv6 and VPN (PPTP, L2TP/IPsec)DSCP (802.1p) Y Multicast Rate up to 54MbpsYMaximum performance, actual data rates, and coverage will vary depending on network conditions and environmental factors. Product specifications and design are subject to change without notice.Copyright © 2017 Edimax Technology Co. Ltd. All rights reserved.SPECIFICATIONS2 x 2 AC Dual-Band Ceiling-Mount PoE Access PointRF SpecificationsFrequency Band •Radio Ⅰ: 802.11b/g/n 2.412~2.484(GHz) •Radio Ⅱ: 802.11a/n/ac 5.18~5.24(GHz), 5.745~5.825(GHz)(The supported frequency band is restricted by local regulations.)Operation Channels •2.4GHz : US/Canada 1-11 / Europe 1-13 / Japan 1-14 •5GHz : Country dependent for the following ranges: US/Canada:Band 1:36, 40, 44, 48; 5.180~5.240(GHz) Band 2: 52、56、60、64;5.260~5.320(GHz)Band 3: 100、104、108、112、116、120、124、128、132、136、140;5.500~5700(GHz)Band 4:149, 153, 157, 161, 165; 5.745~5.825(GHz) Europe:Band 1:36, 40, 44, 48; 5.180~5.240(GHz) Band 2: 52、56、60、64;5.260~5.320(GHz)Band 3: 100、104、108、112、116、120、124、128、132、136、140; 5.500~5700(GHz) Transmit Power (CE: 20dBm or lower, FCC:23dBm or lower)802.11b 23dBm@1Mbps 23dBm@2Mbps ************* 23dBm@11Mbps 802.11g 23dBm@6Mbps 23dBm@9Mbps 23dBm@12Mbps 23dBm@18Mbps 23dBm@24Mbps 22dBm@36Mbps 20dBm@48Mbps 19dBm@54Mbps 802.11gn (2.4G) 26dBm@MCS0/MCS8 25dBm@MCS1/MCS9 25dBm@MCS2/MCS10 25dBm@MCS3/MCS11 24dBm@MCS4/MCS12 23dBm@MCS5/MCS13 22dBm@MCS6/MCS14 22dBm@MCS7/MCS15 802.11a 23dBm@6Mbps 23dBm@9Mbps 23dBm@12Mbps 23dBm@18Mbps 23dBm@24Mbps 22dBm@36Mbps 20dBm@48Mbps 19dBm@54Mbps 802.11an(5G) 26dBm@MCS0/MCS8 25dBm@MCS1/MCS9 25dBm@MCS2/MCS10 24dBm@MCS3/MCS11 24dBm@MCS4/MCS12 23dBm@MCS5/MCS13 22dBm@MCS6/MCS14 21dBm@MCS7/MCS15 802.11ac 26dBm@MCS0 25dBm@MCS1 25dBm@MCS2 24dBm@MCS324dBm@MCS4 23dBm@MCS5 22dBm@MCS6 21dBm@MCS7 19dBm@MCS8 18dBm@MCS9Receiver Sensitivity802.11b ≤-95dBm@1Mbps ≤-90dBm@11Mbps 802.11g ≤-91dBm@6Mbps ≤-75dBm@54Mbps 802.11gn (2.4G) ≤-93dBm@MCS0 ≤-73dBm@MCS7 ≤-90dBm@MCS8 ≤-70dBm@MCS15 802.11a ≤-89dBm@6Mbp ≤-72dBm@54Mbps 802.11an(5G) ≤-92dBm@MCS0 ≤-71dBm@MCS7 ≤-89dBm@MCS8 ≤-68dBm@MCS15 802.11ac ≤ -86dBm@MCS0 ≤ -61dBm@MCS9≤ -83dBm@MCS10 ≤ -58dBm@MCS19ManagementDeploymentStandalone (AP mode)Master AP mode: Can manage 8 Edimax Pro APs with NMSManaged AP mode : Be managed by AP Controller (APC500), Edimax Pro Master AP with NMS softwareConfiguration HTTP/HTTPS SNMP v1, v2c, v3 CLI (Telnet, SSH)RADIUS Server Built-In Auto-Channel Y Private MIB YPackage Contents Access Point AC1200 Ceiling Mount PoE Access Point Mounting Bracket Ceiling-Mount & T-rail Mount Bracket Kit Power Adapter 12V / 1A Power Adapter CableEthernet CableCD / QuickInstallation Guide CD (User Manual & Multi-Language Quick Installation Guide) / Printed English Quick Installation Guide Accessories Optional GP-101IT IEEE802.3at PoE Injector*The maximum users in 2.4GHz is depends on the interference condition of the environment.。
