Comtech EF Data IPSat GW1000 - Manual (Page 11)

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01-0945-401 Rev A 08/2004
Overview
System Overview
The typical IP over-satellite system consists of a network hub with a single, very high-speed uplink broadcasting to
numerous remote stations, each of which includes an IPSat GW1000 terminal.
The IPSat GW1000 Terminal is part of a satellite-based IP network that allows remote sites high-speed
communications access to and from LAN/WAN links. The IPSat GW1000 provides full two-way connectivity to the
hub over a satellite channel and to a local Ethernet network through a standard 10/100Base-T interface. The hub
receives inbound SCPC satellite carriers from IPSat GW1000 remote terminals through a Multiple Receive Terminal
(MRT), offering up to 12 demodulators in only nine rack units of space.
The hub system is scalable from 1 to 72 Mbps outbound and can support virtually any number of satellite return
channels. Any combination of Internet protocol data streams, both TCP and UDP, unicast and multicast, may be
carried between the hub and remote stations. Radyne ComStream can also integrate additional networking
equipment and applications based on your system requirements.
Basic Network Topology Diagram
Hub Equipment
While the networking equipment used in the hub will vary greatly with the particular application of the network, the
basic core of the system remains the same and includes the following:
• Internet Protocol Encapsulator (IP Encapsulator)
• Satellite Modulator, DM-240
• Multiple Receiver Terminal (MRT)
• Optional Equipment
Hub Network Functional Block Diagram