zh
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z 0-9

要将收藏夹添加到列表中,您必须登录自己的账户。

登录 注册

术语汇编

技术在快速发展进步。因此,我们建立了易于使用的术语汇编,帮助您更好地了解影响您业务的术语、技术和趋势。

Central Office (CO)

A telephone company facility within which all local telephone lines terminate and which contains the equipment required for switching voice communications across the telephone network. For DSL service, special equipment is set up at the CO to support DSL service for customer lines terminating at the CO. COs are not necessarily offices; often, they are more like centrals contained in large cabinets.