產品明細

VB252

Dual DVB-T/T2監控模組

    產品簡述
    ♦ 須安裝一個VB120D或VB220控制模組,最多再安裝2個VB252模組
    ♦ 每個VB252有2個獨立的RF輸入,可分析10個IP碼流*
    ♦ 可在VB120/VB220控制模組上加T2MI分析功能
    ♦ 支援DVB-T/T2,頻寬支援: 1.7(T2 lite, 5/6/7/8MHz)
    ♦ 每一個RF輸入包含一個ETR101/290分析引擎,可輪循分析所有的RF channels(Round-Robin operation)
    ♦ RF分析項目: 
      - RF level, MER, SNR, RF offset, Spectrum sense
      - 1 PPS input lock, BER, Packet Error Rate
    *(VB120D: up to 50 streams, VB220: up to 260 streams)
      詢價

      產品詳細介紹Product Introduction

      The VB252 is a dual input DVB-T/T2 input interface blade that is an integral part of the Sencore VideoBRIDGE monitoring system. Each blade has two separate RF inputs that enable monitoring of digital terrestrial transmissions. Two VB252 blades can be installed in a single 1RU chassis together with a controlling VB120 or VB220 probe, providing 4 RF inputs and a high monitoring capacity occupying a minimum of rack space.

      Full RF parameter monitoring is included for each RF input and tuning for each input can be fixed on a single channel or round-robin amongst multiple channels. The Advanced RF Option adds impulse response graphing and analysis to the VB252, making it possible to check reflection conditions at the probe location.

      The full suite of DVB-T, DVB-T2, DVB-T2 Lite signals are support by the VB252. In addition, T2MI analysis is an option in the controller probe blade.

      All this RF analysis functionality is complemented by the renowned VideoBRIDGE ETSI TR 101 290 monitoring engines providing priority 1/2/3 measurements to ensure standards conformance at all levels of the signal.

      Features
      • Dual 75-ohm RF Inputs. One enabled by default, one is optional
      • 1PPS GPS input for SFN Drift measurements
      • One red/green LED TS sync indicator per RF input
      • Supports DVB-T EN 300-744 and DVB-T2 EN302-755
      • All versions of DVB-T2 supported: 1.1.1, 1.2.1 and 1.3.1
      • DVB-T2 Base and DVB-T2 Lite profiles supported (1.3.1)
      • Channel bandwidth: 1.7 (T2-Lite only), 5, 6, 7 and 8 MHz
      • Round-robin capability across multiple PLPs within one frequency
      • Capable of monitoring the following RF parameters:
        • RF and TS lock states
        • Channel power RF level
        • Modulation Error Rate MER
        • Signal to Noise Ratio SNR
        • Center Frequency Offset
        • Spectrum sense
        • 1PPS Input Lock
        • Pre Viterbi BER (DVB-T)
        • Pre Reed Solomon BER (DVB-T)
        • Pre LDPC BER (DVB-T2)
        • Pre BCH BER (DVB-T2)
        • Post BCH (Baseband) FER (DVB-T2)
        • Packet Error Rate
        • LDPC Iterations count
      • DVB-T SFN Drift monitoring for measuring absolute transmission time of mega frame
      • DVB-T2 SFN Drift monitoring by measuring timing of T2MI frame versus received RF super frame
      • Readout of TPS information (DVB-T)
      • Readout of signaled L1 and PLP parameters (DVB-T2)
      • Channel impulse Response diagram
      • Constellation diagram
      • SFN Drift monitoring for DVB-T and T2
      • Extract and display signaled parameters for DVB-T2: 30 for L1 Pre, 20 for L1 PLP, and 9 for L1 Post

      Specifications
      • RF SPECIFICATIONS
        • RF Power Level: -80 dBm to -20 dBm
        • RF Power Level Accuracy: +/- 1.5 dB (and 1.5 dB port-to-port)
        • RF Power Level Resolution: 1 dB
        • Maximum SNR: > 38dB +/- 1.5dB
        • Maximum MER: > 38dB +/- 1.5dB (and 1.5 dB port-toport)
        • Frequency Range: 43 – 1002 MHz
        • Symbol Rate Range: 0.7 – 7.2 Msym/s
        • Carrier Offset: < 15 ppm of tuning frequency
        • SFN Drift: 0 to 500ms
        • SFN Drift accuracy: +/- 2us

      • CONNECTOR SPECIFICATIONS
        • RF Input: 2x 75-Ohm F-Connectors, Female
        • 1PPS Input: 50-Ohm SMA, Female
        • Alarm Relay: 9-Pin D-Sub, Male

      • ENVIRONMENTAL SPECIFICATIONS
        • Operating Temperature: 0º C to 45º C
        • Storage Temperature: -20º C to 70º C
        • Operating Humidity: 5% to 95% non-condensing

      • SOFTWARE OPTIONS
        • VB252RF-LICENSE - Additional RF input option for each VB252 card for a total of two
        • VB252-ADVA-LICENSE - Advanced RF Option for VB252 with Impulse Response graphing and alarming

      • ADVANCED RF OPTION DETAILS
        • Constellation diagram
        • Channel Impulse response diagram with advanced alarming capabilities
        • Configurable alarm template to verify position of CIR echoes in both time and relative amplitude (300 us/50 dB)
        • Supports alarming on up to 10 CIR echoes

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