Abstract: Aspects of the disclosure relate to signal monitoring at edge of a network domain in a network. A monitoring device can evaluate communication quality of information streams in downstream frequency channels, and operation conditions in a telecommunication network. In one aspect, communication quality can be evaluated at the physical layer level or at a higher-layer level containing payload data. In response to an operation issue, the monitoring device can transmit a notification to a node of a distribution platform of the telecommunication network.

Abstract: Aspects of the disclosure relate to signal monitoring at edge of a network domain in a network. A monitoring device can evaluate communication quality of information streams in downstream frequency channels, and operation conditions in a telecommunication network. In one aspect, communication quality can be evaluated at the physical layer level or at a higher-layer level containing payload data. In response to an operation issue, the monitoring device can transmit a notification to a node of a distribution platform of the telecommunication network.

Abstract: A luminometer for assaying bioluminescence and chemiluminescence reactions characterized by sample wells having transparent bottom walls, a light detector positioned beneath the sample wells and a reagent injector above the wells.