Specifications
EASTAR UHP-1000 SERIES SATELLITE ROUTER
INSTALLATION AND OPERATION MANUAL, V. 2.3
(SW VERSION 2.2.9)
© ROMANTIS 2010 12 www.romantis.com
information in-between each other in one-satellite hop without any transit
via Hub. Mesh Terminals allow creating network of any topology e.g.
"tree", "star of stars", ‖Mesh‖, etc.
Figure 4 Typical TDM/TDMA network diagram.
Full Mesh TDMA Network (see Figure 5) consists of equal Earth Stations (Mesh
Stations) that interact with each other through a common TDMA channel (1). This
channel is used by all Mesh Stations to send and receive information with
dynamic reallocation of the resource on demand. Theoretically, all network
resources can be concentrated just for transmission or receive of one particular
Network Station, if no other traffic in the network.
One of the Network Stations acts as a Master and takes over the functions of
dynamic network resource allocation between other Stations. To ensure Full Mesh
interactions between all the Stations a satellite link budget should be designed in
such a way that all Stations properly receive each other. The minimum criterion
is that all Network Stations properly receive the bursts of Master Station and vice
versa. However, the network designed under such minimal criteria will behave as
Star-topology system with a center at the Master Station.
High-speed demodulator in Full Mesh network is not in use and can be used to
receive some additional traffic via MCPC carrier, such as broadband Internet. It
could be a carrier from the same or from another satellite.
EASTAR Hub
TDM/TDMA HUB
Antenna
Satellite
2
1
1
2
External
networks
UHP-1000
EASTAR Terminal
TDM/TDMA Remote
EASTAR Mesh Terminal
TDM/TDMA Half Mesh
2
UHP-1000
1
High-speed
demodulator
Router
Burst
demodulator
Universal
modulator
High-speed
demodulator
Router
Burst
demodulator
Universal
modulator
2
EASTAR Mesh Terminal
TDM/TDMA Half Mesh
1
Users
UHP-1000
High-speed
demodulator
Router
Burst
demodulator
Universal
modulator
UHP-1000
High-speed
demodulator
Router
Burst
demodulator
Universal
modulator
Users
Users