Network Management System (NMS) or Element Management System (EMS) is available from ZHR GLOBAL. These systems enable the administrators to supervise the communication system by integrating them with all communication and control subsystems, and in this way provide the controller with the necessary information in order to manage sections of the power networks. Constant monitoring of quality parameters supplies data for carrying out preventive maintenance and thereby ensuring maximum network performance.
The Network Management System (NMS) includes features specially designed for communication in pipeline systems. NMS is used where the communication network has a large geographical extension, and where quick error detection and short repair time are required. NMS has high compatibility and can receive alarms from other types of equipment such as power supplies, SCADA systems, radio equipment, and CCTV systems. All alarms and measurement data are accessible anywhere in the network, but are normally collected in a Network Control Centre (NCC), where the information is put in order of priority, displayed and stored. A portable PC can operate as a mobile NCC and in this way ease system maintenance.
PLC (Power Line Carrier) unit is an alternative to the two above-mentioned ways of transmitting data. The existing high voltage lines are used for carrying data and voice signals for several hundred kilometers, without the need for repeaters and with speeds ranging from 50 b/s up to 64 Kb/s. Remote configuration and fault location of transmission parameters can be easily done from a desktop PC.