Plugboard type FTTB (Fiber To The Building) type ONU (Optical Network Unit) and method for realizing voice service
A voice service, plug-in technology, applied in multiplexing system selection device, electromagnetic wave transmission system, optical fiber transmission, etc., can solve the problems of high cost and complex ONU backplane, so as to simplify the system structure and improve the voice service Processing power, the effect of simplifying the backplane circuit
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[0045] The present invention will be described in detail below in conjunction with the accompanying drawings.
[0046]The invention provides a plug-in type FTTB type ONU, comprising a backplane, a main control panel and several service panels, at least one of the several service panels is a voice service panel, and the main control panel and the plurality of service panels are plugged in respectively Interconnected on and through the IP bus on the backplane. The realization of the voice service is mainly completed by the main control panel and the voice service panel. The main control panel mainly completes the aggregation and processing of data services and voice services, and completes the forwarding of upstream and downstream service flows, voice signaling processing, and media stream proxy. The management center is the control center of the entire system. The voice service panel completes functions such as collection of analog line signals, digital-to-analog / analog-to-dig...
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