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Testing device and method for determining a common mode signal of an electrical telecommunication

A test equipment and common mode technology, applied in the direction of line transmission monitoring/testing, line transmission components, etc., can solve the problem that the modem does not realize the standard

Inactive Publication Date: 2013-07-10
SONY CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] For Power Line Communication (PLC) modems there has been no standard implemented until now

Method used

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  • Testing device and method for determining a common mode signal of an electrical telecommunication
  • Testing device and method for determining a common mode signal of an electrical telecommunication
  • Testing device and method for determining a common mode signal of an electrical telecommunication

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Embodiment Construction

[0024] Hereinafter, embodiments of the present invention are described. It is important to note that all described embodiments hereinafter can be combined in any way, ie there is no limitation that some described embodiments cannot be combined with other embodiments.

[0025] exist figure 1 The schematic circuit diagram of the testing device 100 is described in . The testing device 100 comprises a first terminal 102 configured to be connected to an equipment under test (EUT), such as a telecommunications modem or a power line transmission modem (PLT modem). The device under test may also be referred to as a device under test (DUT).

[0026] Such a device under test may also be referred to as an Impedance Stabilized Network (ISN) or an Asymmetric Artificial Network (AAN).

[0027] The testing device 100 includes a common mode detector 110 connected to the first terminal 102 . The common mode detector 110 detects the common mode part of the signal input through the first ter...

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PUM

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Abstract

Testing device comprising: a first terminal configured to be connected to an equipment under test; a common-mode detector configured to detect a common-mode part of a signal emitted from said equipment under test; and a first impedance unit connected in series between said first terminal and said common-mode detector; wherein said first impedance unit is configured to adjust a longitudinal conversion loss of said testing device to a predetermined value. A corresponding method for determining a common mode signal of an electrical telecommunication is provided as well.

Description

technical field [0001] Embodiments of the invention relate to testing equipment. A further embodiment of the invention relates to a method for determining a common mode signal of electrical telecommunications. Background technique [0002] The verification of devices used to transmit data to a wired network port (WNP) is performed by examining common-mode (CM) currents or voltages generated by the device under test (DUT) or translated from an impedance stabilization network (ISN) certified. In standards such as CISPR (International Special Committee on Radio Interference) 16-1 and CISPR 22 (for Information Technology Equipment) dealing with certification of electrical equipment, the establishment of the Harmonization of radio interference levels for equipment under test (EUT)") requires fixed interference limits, describes the measurement method and standardizes the operating conditions and interpretation of results. [0003] The detection of current mode (also known as "...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B3/46
CPCH04B3/46
Inventor A·施瓦格W·巴施林
Owner SONY CORP