The D7000-EMU is the control core of the entire device, also located on the back side of the device, mainly to achieve the management and monitoring of each unit, and to interact with the outside management tools through the network. The product supports dual or single controller. When dual controllers are adopted, the main module works, and the inactive module is standby. When the active module fails, it automatically switches to the inactive module and automatically synchronizes the configuration data of the device. The main control module is pluggable, there is no external interface on the panel, and the communication and network management are through the NM1/NM2 ports on the interface module. None
