Notethis article me takes http://www.psn.co.id/, not to look for profit but not more only as this important information spreader, and because also be technician also ever do property ware installation PT.PSN (PT. Pasifik Satelit Nusantar)
Address PT.PSN :
Customer care departementJl. Mega Kuningan Raya Lot 8/9
Kawasan Mega kuninganJakarta, Indonesia.
Sirens System
Indonesian Tsunami Early Warning System (Ina-TEWS) is an advanced, comprehensive publicoutdoor warning management system suitable for a broad range of applications, designed by PSN. It is highly flexible and capable to manage from a small community warning system up toa large scale, integrated regional or national warning system. It provides all necessary functions tomaintain a secure, responsive and reliable public warning system capable to disseminate highpriority warnings rapidly.
HIERARCHICAL ARCHITECTURE.
The Ina-TEWS system design is based on an integrated national warning system concept with a hierarchical management system architecture. It consists of a Regional /Community Control center and a National/Central Control Center. The Regional/Community Control Center is able to independently control, monitor and maintain a network of warning sirens. It is adequate for small scale community or regional warning systems.The National/Central Control Center is an optional higher-level control center. It manages and integrates all data from the Regional/Community Control Center to provide an integrated large/national scale public warning management system. The National/Central Control Center also functions as a backup control center, able to control, activate and monitor each warning siren directly without the assistance of the Regional/Community control center if it ever becomes unavailable due to natural disasters.
RELIABLE & REDUNDANT COMMUNICATIONS.
One of the most important components of an outdoor public warning system is a reliable communications system. The Ina-TEWS system incorporates both satellite and terrestrial communications networks to support redundant near real-time communications between control centers and warning sirens. In the event of emergency, the control center sends activation commands through both networks in parallel to ensure prompt and reliable activation of warning sirens. In addition to the terrestrial networks, the Ina-TEWS system is also backed by the already proven Asia Cellular Satellite network which covers the Asia region. It provides reliable and secure satellite communications through the Garuda-1 satellite using a small, robust fixed terminal installed in each siren site. The small, 75'-beamwidth antenna ensures uninterrupted satellite communications despite any significant antenna misalignments which can be caused by earthquakes or other disasters.
FLEXIBILITY & EXPANDABILITY.
The Ina-TEWS system design is comprehensive and intended to meet the requirements of most public warning systems. But the system is also flexible and can be modified and customized to meet other requirements of a specific design. The control center can be expanded to accommodate additional future siren sites under its domain. The system also supports multiple control centers for a group of sites. This architecture, besides providing backup control centers, also allows multiple agencies/bodies to utilize the same network of warning sirens in a certain area for different purposes, provided that the activation protocols and privileges between the agencies are in place.
