Specifications

54 Rockwell Automation Publication AG-SG001G-EN-P - April 2015
Chapter 3 Choosing Data Communication Equipment
You can choose a single-hop system that shares the inbound and outbound
channels with others to offset costs.
Double-hop
A VSAT site is directly connected to your master or remote station. This VSAT
beams the data to the satellite, which beams the data to either the remote site or
master site.
With a double-hop system, you are not dependent upon the availability of
terrestrial leased lines.
These components make up a satellite transmission system:
Power Amplifier (transmit)/low
Noise Amplifier (receive)
Up/down Converter
Master Station
Demodulator B
Demodulator A
Modulator
Antenna
Antenna
Up/down Converter
Satellite Modem
Satellite Modem
A
Satellite Modem
A
Up/down Converter
Remote
Remote
Power Amplifier (transmit)/low
Noise Amplifier (receive)