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Apparatus for testing at least a portion of the physical layer of a high-speed wired communications network

A technology of communication network and test device, applied in the direction of testing electrical device, bus network, measuring device, etc. in transportation

Active Publication Date: 2020-11-24
PEZHO SITROEN AUTOMOBILS SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, these test components are only capable of testing the consistency of analog signals at the communication interface of the component

Method used

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  • Apparatus for testing at least a portion of the physical layer of a high-speed wired communications network

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Embodiment Construction

[0026] The object of the invention is in particular to provide a test device DT capable of being fitted on a component Oj which is part of a communication network RC of high-speed wired type, which communicates bidirectionally on the same medium and thus comprises a physical layer ( Layer 1) of the OSI model.

[0027] As a non-limiting example, the communication network RC is considered in the following to be of the "point-to-point" type. The communication network is, for example, Ethernet. But the invention is not limited to this type of wired communication network. In general, the present invention relates to any type of high-speed wired network that communicates bi-directionally over the same medium and is adapted to transfer data bi-directionally at high speed between components each comprising a connection to a wired communication medium such as electrical wires or optical fibers at least one communication interface for . Therefore, the present invention also relates t...

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Abstract

The invention relates to a testing device (DT) provided to a first member (O1) including a communication interface (IC) connected to a first communication medium (MC1) in a high-speed wired communication network (RC) communicating in two directions on a single medium, and including a second member (O2) comprising a communication interface (IC) coupled to the first communication medium (MC1). Said device (DT) includes generation means (MG) connected to the communication interface (IC) of the first member (O1) and / or to the first communication medium (MC1) and arranged so as to generate a test that must be sent to the communication interface (IC) of the first member (O1) or by the first communication medium (MC1) in order to cause the communication interface (IC) of the first member (O1), the first communication medium (MC1), and / or the communication interface (IC) of the second member (O2) to react.

Description

technical field [0001] This invention relates to high-speed wired communication networks with bi-directional communication over the same medium, and more particularly to testing of such networks. Background technique [0002] The term "high speed" is here understood to mean speeds greater than or equal to approximately 100 Mbits / s. [0003] In a communication network of the aforementioned type, each component includes at least one communication interface connected to a wired communication medium such as electrical wires or optical fibers. In some so-called "point-to-point" communication networks (such as Ethernet-type communication networks), each component is connected to at least one other component via a communication medium, and at least some of the components include The routing part of the widget. Thus, each communication medium couples only two components to each other. In other networks such as CAN ("Controller Area Network") or LIN ("Local AreaNetwork (Local Area...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/00H04L12/40
CPCG01R31/007H04L12/40006
Inventor N·莫朗
Owner PEZHO SITROEN AUTOMOBILS SA