Browse Prior Art Database

Pluggable Media Interface for Local Area Network Adaptor

IP.com Disclosure Number: IPCOM000037717D
Original Publication Date: 1989-Jun-01
Included in the Prior Art Database: 2005-Jan-29
Document File: 1 page(s) / 12K

Publishing Venue

IBM

Related People

Graham, AD: AUTHOR [+4]

Abstract

This article describes a local area network (LAN) adaptor card that allows common software and protocol oriented hardware to be attached to different types of media by way of a pluggable media.

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Pluggable Media Interface for Local Area Network Adaptor

This article describes a local area network (LAN) adaptor card that allows common software and protocol oriented hardware to be attached to different types of media by way of a pluggable media.

With regard to the layers in which low level protocols are formatted and presented to media attachment hardware, there is a point at which formatted data is in a common form (such as binary NRZ). It is desirable for a manufacturer or a user of networks, to be able to take data from this point in the system and easily apply it to different media, depending on the application.

The drawing shows a representation of a personal computer adaptor card for use in a LAN. The card contains an implementation of a specific LAN protocol with interfaces to upper level protocols and an interface to a connector through which the data is passed to the physical media.

The circuit that plugs into the connector may provide access to any type of transmission media. For example, the pluggable circuit may accept binary NRZ data at the connector and modulate (and demodulate) it on an RF carrier for a broadband application. The pluggable circuit may translate the signal at the connector into a baseband compatible signal, or a light signal for attachment to a fiber.

The pluggability of this part of the communication system allows a manufacturer to create multiple LAN adaptor products by developing the protocol controller once and developing s...