Satellite Communications Systems for Scientific Research

NEC 2001, Varna

RSCC - Russian Satellite Communications CompanySatellites OwnerSatellite Networks OperatorSatellite Networks Monitoring CentersSatellite TT&C Control Stations

RSCC Overview1. Established in 19672. State company 3. 650 employees 4. 2000 revenue - US$ 58 Mln.5. 64% of Russias satellite market6. 11 satellites (140W-1450E)7. Voice, data, TV distribution

RSCC Satellites80E53E96.5E140E99E11W145E14W40E

RSCC Structure

RSCC Ground Facilities

RSCC Digital Terrestrial Network

SCC DUBNA Digital Terrestrial NetworkE1 2048 kbpsE3 34368 kbpsorATM up 155 MbpsSTM-4 622 MbpsFiber-Optic LineRSCCSwitchingCentreShabolovka-37Fiber-Optic LineATM-1 155 MbpsSTM-4 622 MbpsSTM 155 MbpsROSTELECOMInternationalTelephoneSwitchesDSHSCC DubnaSTM-4 622 MbpsFiber-Optic LineM10M9M5

JINR to RBNet ATM Line

Typical Satellite Link

VSAT Terminal

BOD Voice Network Full Mesh DAMA connection 16 or 32 kbps voice channels 9.6 kbps FAX 9.6 kbps Async DATA

BOD DATA Network Clear Channel DAMA or PAMA Channels 9.6 to 2048 kbps Asymmetric ChannelsPoint To Multipoint Connection

TDMA Network Star topology All terminals share one data channel (~128 kbps) Low data rate applicationsLowest cost

Data Broadcasting

Welcome to SCC DUBNA