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VB272 DVB-S/S2 SATELLITE RF INPUT MODULE

The VB272 input card offers monitoring and analysis of QPSK/8/16/32APSK signals found in DVB-S/S2 satellite transponders. A chassis can be equipped with a VB120 or VB220 PROBE controller and up to two VB272 input cards under its control.


Figure - A 1RU Enhanced Chassis with a VB120 module used as a controller for two VB272 DVB-S/S2 satellite
input modules for a total of 4 independent RF inputs
.

A complete configuration with a fully licensed VB120 and two VB272 interface cards provides real-time monitoring and alarming for up to four DVB-S/S2 RF inputs, 10 IP MPTS/SPTS multicasts (upgradable to 50 streams) and one ASI TS input and output. Full ETSI TR 101 290 analysis is performed on all DVB-S/S2 inputs, the ASI input and the IP input in parallel. If the VB220 PROBE is used as master card the IP monitoring capacity is increased to impressive 260 MPTS/SPTS multicasts. The VB272 DVB-S/S2 card is delivered with one input and the second input can be enabled by a simple license upgrade.

Together with the VB120 or VB220 controller the operation of the VB272 is via an intuitive web interface, a gui providing a graphical overview of scanning status and ETR290 TS data as well as a full constelation diagram of the transponder together with all relevant RF levels.

The combined unit is ideal for hybrid networks where IP is used as a carrier from head-end to the satellite uplink station. The built-in round-robin functionality allows sequential analysis of multiple VB-S/S2 multiplexes, making it possible to monitor a complete transponder using a single VB272 interface card.

The VB272 also comes equipped with full power/tone control of RF input switches and can also use the DISEqC 1.1 protocol for additional switch control. With support for modern modulation types as 16 or 32 APSK, the VB272 is future proof. The VB272 is delivered with standard 75 Ohm F-Connectors or as an optional factory ordered VB272-SMA with 50 Ohm SMA Connectors.

News TECHNICAL FEATURES
Hardware ready with two independent tuners and demodulators
One input activated by default - second input available through VB272-RF-OPT
Available with 50 ohm SMA female connectors (VB272-SMA) or 75 ohm F female connectors (VB272)
9-pin male D-SUB alarm relay
Capable of demodulating DVB-S, DVB-S2 8PSK, 16APSK, 32APSK
Supports DVB-S2 GOLD CODES, ROOT CODES and BOTH
Input frequency range from 950 to 2150 MHz
  Automatic symbol rate detection requires only frequency to be configured by user
Symbol rate range between 1 to 45Msym/s
Input stream selection (for DVB-S2)
PL scrambling mode setting (for DVB-S2)
PL scrambling code setting (for DVB-S2)
DVB-S 1/2, 2/3, 3/4, 5/6, 7/8 FEC
DVB-S2 1/4, 1/3, 2/5, 1/2, 3/5, 2/3, 3/4, 4/5, 5/6, 8/9, 9/10 FEC
Configure LNB local oscillator frequency and set input satellite frequency directly
13V/18V/22kHz antenna signalling present
DiseqC 1.1 compatible for control of Committed L-band Switches
Modulation Error Rate (MER) in dB
Signal to Noise Rate (SNR) in dB
Error Vector Magnitude (EVM) in% and in dB
Constellation diagram maintained in GUI
BER pre Viterbi (for DVB-S)
BER post Viterbi (for DVB-S)
BER post LDPC-BCH (for DVB-S2)
RS Packet Error Count
Front-end lock indication in GUI and through front panel red/green LED
Channel power with an absolute accuracy of +/- 3 dB and a resolution of 1 dB
Trend graphs over time for Channel Power and MER up to 2 years - requires VideoBRIDGE Controller server
Carrier level
Carrier frequency offset
Symbol rate offset
Energy per information bit to noise power spectral density ratio (Ebinf/N0) in dB
Energy per transmitted bit to noise power spectral density ratio (Eb/N0) in dB
Energy per symbol to noise power spectral density ratio (Es/N0) in dB
Pilot detection (for DVB-S2)
Frame length (for DVB-S2)
Null packet deletion (for DVB-S2)
Input Stream Synchronization Indicator (ISSI) (for DVB-S2)
Number of input streams (for DVB-S2)
Capable of Short and Normal frames
Stream types:
  - Generic Packetized Stream
  - Generic Continuous Stream
  - Transport Stream
Coding and modulation
  - Constant Coding and Modulation
  - Adaptive/Variable Coding and Modulation (ACM/VCM)
Roll-off factors: 0.35 / 0.25 / 0.20
Capable of Multi Input Stream (MIS) with tuning selection of individual Input Stream Identifiers (ISI)
News RF SPECIFICATIONS
Frequency range: 950 to 2150 MHz
RF power level: -65 to -25 dBm
RF power level accuracy: +/- 2 dB
RF power level resolution: 0.1 dB
SNR: >30 dB
BER and PER readings
News PRODUCT ORDERING CODES
VB272 DVB-S/S2 Demodulator Interface Blade single RF input - 75 ohm female F-connector model
VB727-SMA DVB-S/S2 Demodulator Interface Blade single RF input - 50 ohm female SMA connector model
VB272RF-OPT Additional RF input option for VB272 card for a total of two, factory ordered
VB272RF-UPGR Additional RF input option for VB272 card for a total of two

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