Specifications

UHP-1000 SATELLITE ROUTER
INSTALLATION AND OPERATION MANUAL, V. 2.5
(SW VERSION 2.5.X)
© ROMANTIS 2012 6 www.romantis.com
ACRONYMS AND ABBREVIATIONS
16APSK
16 Amplitude and Phase-shift keying or Asymmetric Phase-shift keying, (APSK), is a digital modulation
scheme that conveys data by changing, or modulating, both the amplitude and the phase of a reference
signal (the carrier wave).
8PSK
Phase-shift keying (PSK) is a digital modulation scheme that conveys data by changing, or modulating, the
phase of a reference signal (the carrier wave).
AGC
Automatic Gain Control
BCH
BCH code is a multilevel cyclic variable-length digital error-correcting code used for correcting multiple
random error patterns. BCH codes may also be used with multilevel phase-shift keying whenever the
number of levels is a prime number or a power of a prime number.
BUC
Block Up-Converter (BUC) is used in the transmission (uplink) of satellite signals. It converts a band (or
"block") of frequencies from a lower frequency to a higher frequency.
C/N
Carrier-to-noise ratio, often written as CNR or C/N, is the signal-to-noise ratio (SNR) of a modulated signal.
CRTP
Compressing IP/UDP/RTP Headers for Low-Speed Serial Links
DSCP
Differentiated Services Code Point (DSCP) is a 6-bit field in the header of IP packets for packet classification
purposes. DSCP replaces the outdated IP precedence, a 3-bit field in the Type of Service byte of the IP
header originally used to classify and prioritize types of traffic
DVB
Digital Video Broadcasting (DVB) is a suite of internationally accepted open standards for digital television.
Eb/No
Eb/N0 (the energy per bit to noise power spectral density ratio) is an important parameter in digital
communication or data transmission. It is a normalized signal-to-noise ratio (SNR) measure, also known as
the "SNR per bit". It is especially useful when comparing the bit error rate (BER) performance of different
digital modulation schemes without taking bandwidth into account.
EIRP
Effective Isotropically Radiated Power
ETSI
The European Telecommunications Standards Institute (ETSI) is an independent, non-profit,
standardization organization in the telecommunications industry (equipment makers and network
operators) in Europe, with worldwide projection.
FEC
In telecommunication and information theory, forward error correction (FEC) is a system of error control
for data transmission, whereby the sender adds redundant data to its messages, also known as an error-
correction code.
HTTP
Hypertext Transfer Protocol (HTTP) is an application-level protocol for distributed, collaborative,
hypermedia information systems.
HUB
Central Station of satellite network that is managing all the terminals and resources
HW
Hardware
ICMP
The Internet Control Message Protocol (ICMP) is used by networked devices to send error messages—
indicating, for instance, that a requested service is not available or that a host or router could not be
reached.
IESS
Intelsat Earth Station Standards
IGMP
The Internet Group Management Protocol (IGMP) is a communications protocol used by hosts and
adjacent routers on IP networks to establish multicast group memberships.
IP
IP is the usual abbreviation for Internet Protocol.
LDPC
Low-density parity-check (LDPC) code is a linear error correcting code, a method of transmitting a message
over a noisy transmission channel, and is constructed using a sparse bipartite graph.
LNB
Low-noise block converter is the receiving converter installed at satellite antenna.
MCPC
Multiple Channels per Carrier
NMS
Network Management System
Node Station
Terminal of satellite network which is able to receive information directly from other network terminals
ODU
Out-Door Unit
QPSK
Phase-shift keying (PSK) is a digital modulation scheme that conveys data by changing, or modulating, the
phase of a reference signal (the carrier wave).