What are the different CONNECT transmission methods?
• There are three basic CONNECT transmission types: • TDMA, time-division multiple access; • DAMA, demand-assigned multiple access; and • SPCP/MCPC, single/multiple channels per carrier. • Interactive CONNECT systems come in two main network topologies – star and mesh. • A star network tends to be based either on a shared access scheme (TDM/TDMA), which is designed to support transactional processing applications, or on a dedicated link (the satellite equivalent to a leased line). • A mesh network usually uses links which are set-up and torn-down on request to establish a direct link between two sites on a demand assigned basis. These mesh systems were initially designed to support corporate and public network telephony links, but are being increasingly used to serve high data rate services such as file downloads.
