| 摘要 |
A communications system, such as a Digital Subscriber Line Access Multiplexer (DSLAM), or corresponding method increases available bandwidth for transmission of data, video, and audio to a customer premise, or curb node for further distribution to customer premises, within a network. In one embodiment, a system comprises a host digital terminal (HDT) including an Ethernet switch unit and multiple optical interface units coupled via a bus. The optical interface units are configured to communicate over an optical communications link with broadband cards of optical network units (ONUs). The ONUs also include data cards coupled to the broadband cards via a bus. The data cards are configured to communicate over end user communications links to end user nodes.
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