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Testing facility for a broadband communications system

  • US 5,790,523 A
  • Filed: 07/31/1996
  • Issued: 08/04/1998
  • Est. Priority Date: 09/17/1993
  • Status: Expired due to Term
First Claim
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1. A telephony system for communicating telephony signals between a telephony network and subscribers to the telephony system, including a broadband communication network having a headend for communicating to the subscribers, the headend comprising:

  • a modulator, coupled between the telephony network and the broadband communications network, for modulating the telephony signals from the telephony network on a carrier in a first band of the broadband communication network;

    channel assignment equipment for assigning telephony signals from one or more subscribers to a selected frequency subband in a second band of the broadband communication network;

    a demodulator, coupled between the telephony network and the broadband communications network, for demodulating the telephony signals in said selected frequency subband and coupling them to the telephony network; and

    a test system for evaluating the operating state of the modulator and the demodulator.

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