VB273
VB273 SATELLITE UPLINK REDUNDANCY SOLUTION
- IF and L-BAND
VB273 DVB-S/S2衛星訊號智能主備路自動切換系統,完整的VB273系統是由VB120控制器模組、VB272監控模組與VB273切換模組共同組成,並且安裝在一RU機架上,基本上用於IF或L-Band訊號及監控標準(ETSI TR 101 290)。
VB273含有雙路徑的衛星信號通道,提供智能切換系統包含自主運行和深入信號分析以便最終切換決策。該解決方案是提供理想快速且強大的切換機制,為一個永久性安裝於衛星站台鏈路或在戶外廣播系統的方案。
圖為一個完整的VB273系統與VB120控制器,10/100/1000的技術管理接口,USB-RS232進行初始設置,VB272-SMA DVB-S/ S2與VB273交換機在1RU EC AC電源的機架,這種配置僅需要25W功率,相當省電。
圖為在1RU增強型機器搭配一個VB120模組和兩個VB252 DVB-T/T2輸入模組,總共4個獨立的RF輸入。
除了監控典型的RF參數,還可任選複雜的DVB-T的MI協議中的高級數據;信號完整性是根據驗證層。此外VB252還支持T2精簡版標準加速器作全面分析,所有分析功能整合橋接技術與ETSI TR101290監控引擎,以確保符合標準。
在手動模式下的可以通過從基於廣泛的XML的EII(外部集成接口)上層網管系統,或者通過SNMP觸發控制。
在VB273還擁有獨特super Local模式功能,在緊急狀況下可透過手動控制面板按鍵切斷網路控制,所有的參數都可以通過內置的Web界面進行控制。Web GUI中包含視覺化介面並且提供了在切換決策和系統狀態使用的參數。
在VB120提供支援TS 101 290分析,除了可以用在VB242的兩個主要ASI輸入端口所需,也可用於臨時監控ASI輸入端口。
硬體的架構是符合電信級標準的,可達到最高的可靠度,完整的解決方案只需要25W消耗功率,相對的可以減少於安裝時所消耗的功率,達到省電的效果。
技術特點
- 2:1 redundancy switching functionality based on built-in monitoring of incoming satellite signals
- Monitoring feature set of VB120 included making this a switch and a probe combined into one
- Supports 70/140MHz IF (VB273) and 950-2150MHz L-band (VB273-LBAND)
- IF signal inputs: 75 ohm female BNC; IF signal output: 75 ohm female BNC
- L-BAND signal inputs: 50 ohm female SMA ; L-BAND signal output: 50 ohm female SMA
- Three-stage button logic supporting 3 distinct modes: Manual, Auto, Super Local
- Robust bistable RF relays ensures state is preserved even in the event of a power loss
- Passive loop through so that signal is passed even if no power on unit
- Capable of receiving DVB-S/S2 QPSK, DVB-S2 8PSK, DVB-S2 16APSK, DVB-S2 32APSK
- Continuously monitor and switch on all TR 101 290 priority 1, 2 and 3 parameters (except Buffer Fill)
- Possibility to customise alarming and switching template on all parameters
- Independent alarm template and redundancy switching template to allow a parameter to be alarmed on while at the same time not resulting in a redundancy switch
- Filtering capabilities on switching criteria to prevent short glitches to trigger a redundancy switch
- Continuously monitor and switch on RF parameters:
- Channel power RF level
- Modulation Error Rate (MER) in dB
- Signal to Noise Rate (SNR) in dB
- Error Vector Magnitude (EVM) in% and in dB
- BER pre Viterbi (for DVB-S)
- BER post Viterbi (for DVB-S)
- BER post LDPC-BCH (for DVB-S2)
- RS Packet Error Count
- Carrier frequency offset
- Symbol rate offset - PID analysis, Service analysis, bandwidth overview, PSI/SI/PSIP table analysis
- Automatic or manual TS recording of up to 200MB for recording fault that triggered redundancy switch
- Thumbnail extraction with audio bars and meta data
- Configurable alarm severity level
- PSIP support (ATSCA/78)
- Exportable logs
- Management port: 10/100/1000-T; Video ports for RDP relay: 10/100/1000-T and SFP
- Condensed mosaic thumbnail view of all services monitored