COMSPHERE –48 Vdc Central Office Power UnitGlossary-2 October 2002 3000-A2-GB41-50shared diagnostic unit(SDU)A circuit card that plugs into a dedicated slot in the COMSPHERE 3000 SeriesCarrier to provide the shared diagnostic control panel and network managementinterfaces to the DSUs in the carrier. It translates the network management protocolto the devices in the carrier and routes incoming messages to the appropriate slots.6800 Series NetworkManagement System(NMS)A Paradyne automated network management system that supports the CO PowerUnit and other devices. It allows an operator to monitor network conditions,analyze problems, and take restorative measures.
