Training

Training & Seminars

EMI Telecom Workshop - March 26 -27, 2001 -

Sheraton Intl’ Hotel at Baltimore Washington Intl’ Airport

POSTPONED

EMI Telecom Workshop

How to meet product mandatory EMC requirements?

Click here for registration form.

Presenters: Don N. Heirman - Don HEIRMAN Consultants, LLC

            John F. Lichtig - Lichtig EMC Consulting, LLC

Seminar Description

Most products today have microprocessors used to control its functions and to enable data to be sent to associated peripheral devices and beyond, by, for example, connections to local area networks and telecommunications lines. These products generally fall into a class of products called information technology equipment (ITE) and are subject to mandatory RF emission limits in most countries, and to mandatory immunity requirements for specific regions of the world such as the European Union. In the United States, the Regional Bell Operating Companies (Bell Atlantic, BellSouth, SBC, and US West) require that telecommunications equipment be tested to strict EMC criteria prior to deployment in their networks. This seminar will focus in depth on the most-used international set of standards used to show conformance of information technology equipment to these mandatory EMC standards. In addition, the course will address the United States EMC criteria necessary for deployment of telecommunications equipment. These standards/criteria are CISPR Publication 22 (Emission limits and measurement methods), CISPR 24 (Immunity limits and measurement methods), and Telcordia Technologies (formerly Bellcore) GR-1089-CORE, (Electromagnetic Compatibility and Electrical Safety - Generic Criteria for Network Telecommunications Equipment). Use of these standards are worldwide and in fact, the use of the European Norm version of these standards and meeting the limits therein gives the presumption of meeting the strict European Union regulatory essential requirements as stated in their EMC Directive. The FCC in this country has even been petitioned requesting that at least CISPR 22 be adopted as a replacement for their own Rules. The attendees will gain a better understanding of this activity, including changes that have been proposed in the past 6 months, to apply it to his/her product line and strategies for increasing and expediting market access internationally for those countries and regions of the world which adopt the work of the CISPR. Product managers, quality assurance personnel, testers, designers and standards staff involved with product conformity assessment to international markets of the latest measurement methods, proposed limits, and future conformity assessment activity will benefit from the knowledge gained by this special course.

Topics to be covered

Introduction to international EMC requirements

CISPR 22 documentation

· Equipment measurement ports

· Conducted emission limits and measurement methods

· Tabletop, floor-standing, and combination product application

· Telecommunication/network port limit

· Proposed amendments:

· Limits/measurements above 1 GHz

· Restrictive test methods

· Limits at 3 meter separation test distance

· Definition of ITE/multifunctional equipment

· Common test setups (emission and immunity testing)

· Use of ferrite tubes on cabling

· Common modifications in European Union

Related activity

· Measurement antenna calibration

· Test site requirements

CISPR 24 documentation

· Equipment measurement ports

· Applicable immunity standards (IEC 61000-4-X , i.e. ESD, radiated and conducted immunity, fast transients/bursts, surge, power magnetic fields, voltage dips and interruptions, etc.)

· Limits/severity levels

· Application to specific ITE, e.g. telecom terminal equipment with analog and digital interface, FAX, data processing equipment, reproduction equipment, automatic teller machines, point of sale terminals)

· Performance degradation criteria

· Common modifications in the European Union

· Proposed amendments (transient warning, limits as a function of frequency and type of equipment under test, extension of radiated test to 2 GHz, etc.)

Introduction to EMC measurement uncertainty

· Current activity in CISPR

· Components of measurement uncertainty

· Application to emission and immunity testing

· Determination of pass/fail criteria

GR-1089 documentation

· Necessity of GR-1089

· Criteria (ESD, EMI, Lightning and AC Power Fault, Steady-State Power Induction, DC Potential Difference, Electrical Safety, Corrosion, and Bonding and Grounding)

· EMI

· Emissions criteria

· Immunity criteria

· EUT setup

· Measurement methods

· Performance degradation criteria

· Possible amendments

Presenter: Donald Heirman

Don N. Heirman is the President of Don HEIRMAN Consultants, an EMC consultation and training organization and an adjunct professor and senior research scientist at the University of Oklahoma. He has served as the principal EMC consultant and manager of a major EMC test laboratory in Lucent Technologies (Bell Labs) for over 30 years before his early retirement in 1997. He has leadership or key contributor roles in many national and international EMC standards committees. In particular, he is one of the principal contributors (and often chief US delegate) to the Special International Committee on Radio Interference (CISPR) Subcommittee G (Information Technology Equipment (ITE)) that is the committee responsible for CISPR Publications 22 (emissions) and 24 (immunity) which forms the basis for this seminar. He has been present at all of the CISPR G meetings as well as its working groups since CISPR G was formed in the 1980’s and hence knows first hand the intricacies of the CISPR G publications as well as future proposals for changes and their application in making conformity assessments of ITE products.

Presenter: John Lichtig

John F. Lichtig was born in Puerto Rico. He received a Bachelors of Science in Electrical Engineering from Northeastern University in 1983 and a Masters in Engineering (Electrical) from Cornell University in 1984. During his employment at Telcordia Technologies’ (formerly Bellcore) EMC Group for 15 years he was responsible for electromagnetic interference systems designs, particularly radio frequency interference suppression, and establishment of RFI immunity and emission standards for telecommunications facilities (e.g., Section 3 (EMI) of GR-1089-CORE, Electromagnetic Compatibility and Electrical Safety - Generic Criteria for Network Telecommunications Equipment). He is now the president of Lichtig EMC Consulting, LLC, an organization that provides EMC consultation to the telecommunications industry. He is a member of ANSI Accredited Standards Committee C63 on EMC, a member of IEC CISPR/G Working Groups 1 and 3 - EMC of Information Technology Equipment, and a USA technical expert to ITU-T (formerly CCITT) SG 5 - Protection against electromagnetic environment effects. Mr. Lichtig is a National Association of Radio and Telecommunications Engineers (NARTE) Certified EMC Engineer and a member of Eta Kappa Nu, Tau Beta Pi, and the Institute of Electrical and Electronic Engineers (IEEE).

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