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ISCS Re-competition: Upgrades to International Satellite Communications System

This document outlines the network features, changes/improvements, broadcast bandwidth changes, site equipment replacements, workstations, schedule, network diagrams, and end-user site listing for the International Satellite Communications System (ISCS) re-competition in September 2002. The ISCS offers C-band satellite coverage, compatibility with site-owned VSAT equipment, real-time collection and broadcast of weather products, and options for future expansion and upgrades.

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ISCS Re-competition: Upgrades to International Satellite Communications System

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  1. InternationalSatelliteCommunicationsSystem(ISCS)Re-competitionInternationalSatelliteCommunicationsSystem(ISCS)Re-competition September 2002

  2. ISCS Re-competition • Network Features • Network Changes/Improvements • Broadcast Bandwidth Changes • Site Equipment Replacements • Workstations • Schedule • Network Diagrams • End User Site Listing

  3. Network Features • C-band satellites with full coverages in AOR and POR • Compatible with site-owned VSAT equipment • Full coverage to all existing users • Expandable to future sites • Options to upgrade receive sites to 2-way • 24/7 operation for real-time collection and broadcast of weather products • GRIB, BUFR, T4-FAX, and text products

  4. Network Changes/Improvements • IP capability added to existing X.25 • NWSTG broadcast will be XoI • Interfaces changed at NWSTG and Sites • Site FRAD replaced with interface box • Sites will have both X.25 and IP capabilities • X.25 phased out when all workstations are replaced (1st quarter CY 2004 is target) • Socket streaming output and FTP input added to NWSTG

  5. Broadcast Bandwidth Changes • 64 Kbps baseline bandwidth for AOR & POR • Separate IP Sockets for AOR & POR provide opportunity for different data content • Increased data rates available as options • Selectable at 25%; 50%; 75% or 100% increase • Capable of bursting during high data volumes

  6. Site Equipment Replacements • Technology Substitution provisions • Option to replace VSATs or interface equipment • Permits performance improvements or upgrades • Replacement of aging equipment • Funded by sources yet to be determined

  7. Workstations • Workstations are not included in procurement • NWS International Activities responsible for workstation activities

  8. Schedule • RFP release February 1, 2002 • Contract Award originally scheduled for October 1, 2002 will probably slip until November • Complete deployment August 1, 2003

  9. AOR Receive Sites (WAFS) RA-III Argentina Bolivia Brazil (2 sites) Chile Ecuador Paraguay Peru (2 sites) Surinam Uruguay Venezuela RA-IV Anguilla Bermuda Canada Cuba – Aeroport Dominica Mexico –Aeroport Montserrat St. Kitts St. Vincent Tortola U.S. - Silver Spring U.S. – Kansas City U.S. – Camp Springs RA-VI Azores United Kingdom

  10. AOR 2-Way Sites (RMTN) RA-I Niger RA-III Columbia French Guiana Guyana RA-IV Antigua Aruba Bahama Barbados (2 sites) Belize Cayman Islands Costa Rica Cuba (Met Service) Curacao Dominican Republic El Salvador Grenada Guadeloupe Guatemala Haiti Honduras Jamaica Martinique Mexico (Met Srvc) Nicaragua Panama Saint Lucia Sint Maarten Trinidad & Tobago U.S. Silver Spring U.S. San Juan, PR U.S. Coral Gables

  11. POR Receive Sites (WAFS) RA-II China Peoples Rep Japan Korea Korea Peoples Rep China - Taiwan Viet Nam RA-III Easter Island RA-V American Samoa Australia Brunei Caroline Island Cook Island East Timor Fiji French Polynesia Indonesia Johnston Island Kiribati Mariana Island Marshall Islands Nauru New Caledonia New Zealand (2 sits) Niue Isl. (Korea) Papua New Guineea Philippines Samoa Solomon Islands Tonga Vanuatu Wallis Island U.S. - Honolulu

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