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    • 9. 发明申请
    • VDSL splitter
    • VDSL分离器
    • US20060225119A1
    • 2006-10-05
    • US11095939
    • 2005-03-31
    • Steven WollmershauserKeith AllenWilliam HurstAhmad AnsariVernon Reed
    • Steven WollmershauserKeith AllenWilliam HurstAhmad AnsariVernon Reed
    • H04N7/173
    • H04M11/062
    • A combination VDSL Splitter/Balun, Low pass filter converts a copper pair containing VDSL signals and PSTN service to be compatible with home coaxial and twisted pair wiring. A device of the invention performs the following functions: accepts VDSL and PSTN service in on a single twisted pair; provides front end voltage spike protection and test resistance circuit; and splits off the PSTN service to a connector compatible with a twisted copper pair; prevents signals above the voice spectrum from entering back through the twisted copper pair by filtering it to an RF level below the VDSL signal. The VDSL signal continues through the device and through a voltage blocker preventing the line and ring voltage from continuing. The impedance of the twisted pair is matched, through a balun, to a coaxial output on the device.
    • 组合VDSL分路器/平衡/不平衡器,低通滤波器将包含VDSL信号和PSTN服务的铜线转换为与家用同轴和双绞线布线兼容。 本发明的设备执行以下功能:在单个双绞线上接受VDSL和PSTN业务; 提供前端电压尖峰保护和测试电阻电路; 并将PSTN服务拆分为与双绞线对兼容的连接器; 防止语音频谱之外的信号通过将其过滤到低于VDSL信号的RF电平回到双绞铜线对。 VDSL信号继续通过器件并通过电压阻挡器,防止线路和环路电压持续。 双绞线的阻抗通过平衡 - 不平衡变压器与设备上的同轴输出相匹配。