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VB266 QAM DVB-C/C2 RF INTERFACE CARD

On the cutting edge of technology is the VB266 DUAL QAMDVB-C/C2 RF Interface with all the modulations available from QAM16 to QAM4096 for modern networks with high-density MPTS transports. Up to two inputs on each cards will together with the VB120 or VB220 controllers give 4 inputs in a 1" RU chassis.


A complete configuration with a fully licensed VB120 provides real-time monitoring and alarming for four QAM inputs, 50 IP MPTS/SPTS multicasts, upgradable in steps of 10 from an initial 10 streams, and a ASI TS input and output.

ETSI TR 101 290 analysis and monitoring is performed in parallel for the QAM inputs, the ASI input and the IP input. If the VB220 is used as master card the IP monitoring capacity is increased with impressive 260 MPTS/SPTS multicasts in addition to the RF inputs.

The combined unit is ideal for hybrid networks where IP is used as a carrier from head-end to the regional edge multiplexer/ modulator. The built-in round-robin functionality allows sequential analysis of multiple QAM multiplexes, making it possible to monitor the total broadcast contents of a cable transmission system using a single VB266.

The VB266 DUAL QAM DVB-C/C2 input option card is an ideal solution for complete monitoring inDVB-C/C2 or hybrid DVB-C/C2/IP networks. One VB266 module is capable of demodulating two multiplexes (one per input) for ETSI TR101290 fault detection and alarm generation in the full frequency band (44Mhz –1GHz).

News TECHNICAL FEATURES
Dual input digital cable receiver
Fully independent inputs
Fully compliant with ETS 300 249
ITU.T J.83 (Annex A/B/C)
QAM modes: 16,32,64,128,256, 1024, 4096
Constellation Diagram
Wide symbol rate range of 0.87 to 7.0 Mbaud
Selectable IF filter (6/8 MHz)
Excellent neighbour channel isolation
Dual 75 ohm F-connector input
Frequency range: 44-1GHz
Symbol rate: 0.87-7.0 Msym/s
RF power level: -60 dBm to-10 dBm (+/-1.5 dB)
SNR (*): < 37 dB (+/-2 dB)
MER: < 37 dB (+/-2 dB)
BER pre-FEC (*) > 1.0E-8
BER post-FEC (*) > 1.0E-9
Input sensitivity: -60
(*) 6.9MS,BER2x10e-4,QAM256
News PRODUCT ORDERING CODES
VB266 DVB-C/C2 QAM Demodulator Interface blade single RF input
VB120 ASI probe blade. 10/100/1000T or SFP GigEthernet (IP-OPT required for IP monitoring).
ASI in/out. Built in ETSI TR 101 290 Analysis
VB220 IP-Probe blade w/Gbit electrical/optical inputs + ASI in. Bulit in AET


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