Headend as well as system and procedure for the failure-tolerant connection of broadband powerline terminals by means of this headend to a backbone network

摘要

A headend is described for providing communication between broadband power line terminals - BPL terminals - and a backbone network. The headend (HE1, HE1 ', HE2) has a BPL interface for communication with the BPL terminals (BE1, BE2) and an uplink interface for communication with the backbone network, wherein the BPL terminals (BE1, BE2) connect to the headend (HE1, HE1 ', HE2) via the BPL interface, the headend (HE1, HE1', HE2) managing BPL terminals (BE1, BE2) connected in a normal mode and data packets between the connected BPLs Terminals (BE1, BE2) and the backbone network. To achieve continued safe operation in the event of a failure of the connection to the backbone network, the headend (HE1, HE1 ', HE2) has means for detecting the state of the connection to the backbone network. The headend (HE1, HE1 ') is designed to deactivate the management function for the connected BPL terminals (BE1, BE2) upon detection of a failure of the connection to the backbone network. In a preferred embodiment, the headend is also designed to activate a repeater operation, wherein the headend (HE1 ') receives data packets in repeater mode via the BPL interface, processed and via the BPL interface, preferably to another headend again sending out. Furthermore, a system is disclosed that comprises at least one inventive headend, as well as a method for the failure-tolerant connection of BPL terminals via one of at least two headends to a backbone network.