A method for managing a communications system, wherein the communications system comprises a front-end device and a remote node device, wherein the front-end device is configured to manage the remote node device and transmit a service to the remote node device, wherein the service comprises a broadband access service and a video service; the remote node device comprises at least one coaxial media converter, CMC, wherein each of the at least one CMC comprises a data over cable service interface specification, DOCSIS, front-end module that supports the broadband access service and an edge quadrature amplitude modulation, EQAM, module that supports the video service, and the at least one CMC and the front-end device are connected by using a digital fiber; the front-end device comprises a controller; and the method comprises: managing, by the controller, the at least one CMC, wherein the communications system further comprises a service management platform that manages the at least one CMC according to the controller, and the managing, by the controller, the at least one CMC comprises: obtaining a first correspondence between the controller and the at least one CMC; converting, according to the first correspondence, a first interface configuration protocol between the service management platform and the controller into a second interface configuration protocol between the controller and the at least one CMC; obtaining a second correspondence between the controller and at least one EQAM module corresponding to the at least one CMC; and enabling, according to the second correspondence, the controller and the at least one EQAM module to perform communication according to a resource management protocol between the service management platform and the EQAM module. managing, by the controller, the at least one CMC, wherein the communications system further comprises a service management platform that manages the at least one CMC according to the controller, and the managing, by the controller, the at least one CMC comprises: obtaining a first correspondence between the controller and the at least one CMC; converting, according to the first correspondence, a first interface configuration protocol between the service management platform and the controller into a second interface configuration protocol between the controller and the at least one CMC; obtaining a second correspondence between the controller and at least one EQAM module corresponding to the at least one CMC; and enabling, according to the second correspondence, the controller and the at least one EQAM module to perform communication according to a resource management protocol between the service management platform and the EQAM module. obtaining a first correspondence between the controller and the at least one CMC; converting, according to the first correspondence, a first interface configuration protocol between the service management platform and the controller into a second interface configuration protocol between the controller and the at least one CMC; obtaining a second correspondence between the controller and at least one EQAM module corresponding to the at least one CMC; and enabling, according to the second correspondence, the controller and the at least one EQAM module to perform communication according to a resource management protocol between the service management platform and the EQAM module.