ACD4-MRL系统，变频器Interface Type参数应设置为（）。
Router R1, a branch router, connects to the Internet using DSL. The engineer plans to use a configuration with a dialer interface. The answers list a feature and interface on which the feature could be configured. Which combinations accurately describe the interface under which a feature will be configured?（）A、PPP on the ATM interfaceB、VPI/VCI on the dialer interfaceC、IP address on the ATM interfaceD、CHAP on the dialer interface
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Based on the following items， which two types of interfaces are found on all network-based IPS sensors？（）A、Loopback interfaceB、Command and control interfaceC、Monitoring interfaceD、Management interface
RS422是数控系统中的异步通信接口。
LKJ的通信插件提供装置的各种对外通讯接口，通讯接口包括（）。A、2路RS485接口和1路RS422/RS485接口B、1路RS485接口及1路RS422/RS485接口C、1路CAN总线接口和1路RS422/RS485接口D、1路CAN总线接口和2路RS422/RS485接口
时钟系统主要采用RS422接口。
客户的路由器通过DCC的方式接入运营商网络，那么在路由器上如下哪些接口可以实现DCC拨号？（）A、Dialer interfaceB、Serial interfaceC、Async interfaceD、PRI interface
使用哪一条命令显示IPC接口状态和接口参数的配置？（）A、DISPLAY interfaceB、DISPLAY running-configC、DISPLAY ipx interfaceD、debug ipx interface
