Determination of the Physical Integrity of Ethernet Cables by Obtaining their Transmission Line Parameters from Measured Impedance Profiles

Authors

  • Olusegun Ogundapo School of Engineering, American University of Nigeria, PMB 2250, Yola-Nigeria
  • Alistair P. Duffy School of Engineering and Sustainable Development, De Montfort University, LE1 9BH, United Kingdom

DOI:

https://doi.org/10.13052/2022.ACES.J.371005

Keywords:

Ethernet cables, impedance profile, physical integrity, transmission line parameters

Abstract

A method of determining the physical integrity of Ethernet cables by obtaining their transmission line parameters (resistance, inductance, capacitance, and conductance) from their measured impedance profiles are presented. The transmission line parameters were extracted across the cable lengths rather than frequencies used in most research. The method can be used to examine the physical integrity of Ethernet cables before their deployment. The study of the physical integrity of Ethernet cables is very important because, in typical installations, cables can be manipulated in the form of repeated coiling and uncoiling. The installation handling stress can adversely affect the signal integrity especially if they are substandard Ethernet cables. In this paper, four Ethernet cables were subjected to three coiling and uncoiling tests to represent installation handling stress. The impedance profiles of the four cables across their lengths were measured for the three handling stress test conducted. The computation of the transmission line parameters of the Ethernet cables using measured impedance profiles was implemented with the aid of Matrix Laboratory (MATLAB). The outcome of the research showed that the method presented will be very useful to cable installers and contractors in making objective decisions in the choice of cables for deployment.

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Author Biographies

Olusegun Ogundapo, School of Engineering, American University of Nigeria, PMB 2250, Yola-Nigeria

Olusegun E. Ogundapo received a Ph.D. degree in Electronic Engineering from De Montfort University, United Kingdom. He also has an M.Sc. degree in Electrical Engineering from Ahmadu Bello University, Zaria, and a B.Eng. in Electrical and Electronic Engineering from the Federal University of Technology, Yola (now Modibbo Adama University), Yola-Nigeria. He is now an Assistant Professor at the School of Engineering, American University of Nigeria, Yola-Nigeria. His research interests are in computational electromagnetics, validation, data analysis, signal integrity, wireless/wired communication media analysis, and modeling.

Alistair P. Duffy, School of Engineering and Sustainable Development, De Montfort University, LE1 9BH, United Kingdom

Alistair P. Duffy received the B.Eng. (Hons.) degree in Electrical and Electronic Engineering and the M.Eng. degree from the University College, Cardiff, U.K., in 1988 and 1989, respectively. He received his Ph.D. degree from Nottingham University, Nottingham, U.K., in 1993 for his work on experimental validation of numerical modeling. He was awarded a D.Sc. in 2019 from Cardiff University for his work on the validation of computational electromagnetics. He is currently Director of the Institute of Engineering Sciences and Professor of Electromagnetics at De Montfort University, Leicester, U.K. He is also a Guest Professor at Harbin Institute of Technology, Harbin, China, a visiting professor at Xi’an Jiaotong University, China, and a 2022 Visiting professor at EPFL, Switzerland. He is the author of approximately 300 articles published in journals and presented at international symposia. His research interests include CEM validation, communications cabling, and technology management.

Dr. Duffy is a Fellow of the IEEE, the Institution of Engineering and Technology (IET), and the Royal Society for the Encouragement of Arts, Manufactures and Commerce (RSA). He is the Immediate Past President of the IEEE EMC Society and Director-Elect of the IEEE. He is an Associate Editor of the IEEE Transactions on EMC and of the IEEE Letters on EMC Practice and Application. He was the General Chair of the IEEE Symposium on EMC + SIPI in 2020 and the joint symposium with EMC Europe in 2021.

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Published

2022-10-31

How to Cite

[1]
O. . Ogundapo and A. P. . Duffy, “Determination of the Physical Integrity of Ethernet Cables by Obtaining their Transmission Line Parameters from Measured Impedance Profiles”, ACES Journal, vol. 37, no. 10, pp. 1051–1057, Oct. 2022.

Issue

2022: Vol 37 Iss 10

Section

General Submission

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