VSATs are small earth stations (normally 1.4 - 2.4 meters) that are utilized for reliable transmission of data, voice and video via satellite. VSAT Terminal Equipment consists of two units - an indoor unit and an outdoor unit. The outdoor unit is placed outdoors for a line-of-sight to the satellite and the indoor unit interfaces with the user's communications device (e.g. data terminal equipment). The outdoor unit consists of a small antenna, mount and electronics for signal reception and transmission. The indoor unit consists of a satellite modem anddemodulator(s) and a network access device to interface with data LANs and PBXs.
The VSAT Network could operate in a STAR or MESH arrangement with the satellite bandwidth being dedicated for each remote link analogous to a leased line and this arrangement is known as "Single Carrier Per Channel" (SCPC) Configuration. This type of configuration is used in continuous streaming data applications.
The Advantages of a VSAT Network
Link Communications Systems provides best of breed VSAT technology by implementing IP networks over satellite links to handle voice, fax, data, and video communications. A customer's network can be configured as a STAR or MESH network. The network supports data applications as well as voice and video. The data network handles a wide range of protocols; LAN traffic; or analog and digital voice, fax and video data. All speeds are supported from small links to huge IP Trunking links.