Communications distribution system
First Claim
1. A communications system comprising:
- a host digital terminal including an Ethernet switch unit and multiple optical interface units coupled via a bus and configured to communicate via an optical communications link;
multiple optical network units including a broadband card, coupled to a respective optical interface unit via the optical communications link, and multiple data cards, coupled to the broadband card via a bus and configured to communicate to end user nodes via end user communications links.
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Accused Products
Abstract
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.
32 Citations
43 Claims
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1. A communications system comprising:
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a host digital terminal including an Ethernet switch unit and multiple optical interface units coupled via a bus and configured to communicate via an optical communications link;
multiple optical network units including a broadband card, coupled to a respective optical interface unit via the optical communications link, and multiple data cards, coupled to the broadband card via a bus and configured to communicate to end user nodes via end user communications links. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 37, 38, 39, 40, 41, 42, 43)
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24. A method of communicating between a central office and an end user node, the method comprising:
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converting a first optical communications signal received from a central office to a corresponding first electrical signal with an asynchronous, packet-based format;
processing the first electrical signal in a corresponding, asynchronous, packet-based manner;
transmitting the first electrical signal;
converting the first electrical signal to a second optical communications signal;
transmitting the second optical signal;
converting the second optical signal to a corresponding second electrical signal with an asynchronous, packet-based format;
processing the second electrical signal in a corresponding, asynchronous, packet-based manner; and
transmitting the second electrical signal to at least one end user node. - View Dependent Claims (25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36)
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Specification