A stand-alone system that monitors MPEG-2 TS, switching to a backup stream if the active stream is detected as being corrupted. Used for equipment redundancy and network-path redundancy, it offers up to eight 2:1 IP switches or four 2:1 ASI switches in 1 RU. Works with ASI-based headends and IP-centric networks. Measures the health of incoming streams via a range of configurable tests. It supports TR 101 290 tests to provide a health-status check of a digital network.