Specifications

UHP-1000 SATELLITE ROUTER
INSTALLATION AND OPERATION MANUAL, V. 2.5
(SW VERSION 2.5.X)
© ROMANTIS 2012 13 www.romantis.com
Figure 3 Typical network diagram for MCPC broadcasting.
 TDM/TDMA network – a network mode with dynamic redistribution of satellite network capacity
consisting of Hub and Terminals. The TDM/TDMA network consists of:
o Hub is a central station of the network that is managing operations of all Network Terminals
and distributing the bandwidth accordingly to actual traffic load and predefined QoS. Hub is
also acting as a gateway, concentrating and routing traffic of all Network Terminals to/from
external networks. Hub consists of one or several UHP-1000 routers depending on network
size. (See Figure 4)
Hub constantly broadcasts common MCPC carrier - Outroute (1) dedicated to all network
Terminals. Hub uses Time Division Multiplexing (TDM) to deliver data to specific terminal or
to some group of terminals. Such data consists of user traffic and network management
commands.
Hub receives its Outroute channel from the satellite for calculation of the Time To Satellite
(TTS) delay that is required for network synchronization.
o Terminal - is network access equipment that interacts with the Hub in Hub/Spoke (Star)
topology. Terminals receive the MCPC Outroute (1) broadcasted from the Hub and respond
to the Hub via Time Divided Multiple Access (TDMA) carrier - Inroute (2). One or several
TDMA Inroutes are shared between groups of Terminals. Each Terminal transmits its
information as packets (burst) to individually-assigned time-slot determined by the Hub.
o Mesh Terminal – an advanced mode of operation of basic Terminal that allows
simultaneously receiving information from the Hub and other remotes. Mesh Terminal is
also based on UHP-1000 router, but with enabled burst demodulator (which is software
activated option of any UHP-1000 router). In such advanced mode Terminals may exchange
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.
Satellite
UHP Terminal
MCPC
1
High-speed
demodulator
Router
UHP-1000
Burst
demodulator
Universal
Modulator
UHP Terminal
SCPC
1
Users
Users
1
High-speed
demodulator
Router
UHP Uplink
MCPC
1
UHP-1000
Burst
demodulator
Universal
modulator
Data source
High-speed
demodulator
Router
UHP-1000
Burst
demodulator
Universal
Modulator