VCCI 1 year grace period for 1 GHz+ testing

The VCCI Council posted a notice on its web site at http://www.vcci.jp/vcci_e/topics/new091211.html detailing the planed implementation of the 1 GHz+ radiated emissions requirements. These requirements are based on CISPR22 Edition 5.

While the VCCI Council will begin enforcement of the new requirements on October 1, 2010, manufacturers will have the option of applying the old requirements until September 2011. The VCCI Council requests however that manufactures proceed with conformity to the new requirements on the original 2010 deadline date.

The VCCI Council gives justification for its decision based on the publication, August 21, 2009, in the Official Journal of the European Union, that extended the date of withdrawal of EN55022:1998 until September 30, 2011. EN55022:1998 is based on CISPR22 Edition 3, and does not contain requirements for testing above 1 GHz.

It is interesting to note that for product sold in the United States, testing above 1 GHz has been required for many years. In fact, Part 15.33 calls out that unintentional radiators can be required to be tested up to as high as 40 GHz.

What has been a major point of contention for some, is that no agreed method for site validation has been published for above 1 GHz for FCC testing. That being said, no significant reports of interference above 1 GHz from properly tested unintentional radiators have made the headlines either.

ISN for ITE telecom line testing

Image by pascal.charest via Flickr

On November 11^th, 2009, the VCCI Council of Japan issued notice describing the restrictions on the use of Impedance Stabilization Network (ISN) to be used for the measurement of telecommunication ports conducted EMI. Although this information is published in the current CISPR standard, the VCCI Council will only begin to deal with the filing of reports on telecommunication port conducted emission from April 2010. Currently, a great deal of confusion abounds on the proper selection of the ISN for telecom measurements. This notice helps to clear up some of that confusion.

As implied, the document describes the acceptable types of ISN, suitable for the measurement of telecom line conducted EMI. Most notably, the document comes with warning notes about using certain types of ISNs with certain quantity of balanced pairs. Get a copy of the notice.

> 1GHz testing for Japan

Image by End of Summer via Flickr

It’s known for several months now, that the European Union has deferred implementation of EN55022:2006 +A1:2007 until October 2011.  But what about others that implement CISPR standards for EMC

EN55022 is the emissions specification for Information Technology Equipment, or ITE. It is a derivative if CISPR22. The A1:2007 amendment adds the requirement for testing from 1GHz to 18GHz, depending on the operating frequency of the product under test.

However, in Japan, the current Voluntary Control Council for Interference by Information Technology Equipment (VCCI Council) rules call for mandatory compliance with the CISPR 1GHz to 18GHz test band by October 2010. The news here is that, so that Japan can be harmonized with Europe and other countries, It has been presented at a meeting in London, that the intent of the VCCI is to defer the 1-18 GHz requirements until October 2011.

 

VCCI - Advanced notice of enforcement of new limits for conformity verification reporting.

From: http://www.vcci.jp/vcci_e/topics/new090701.html

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Dear VCCI members -

This is to remind you that the following previous notice given in V-3/2009.04 Technical Requirements will actually be enforced as stated.

“Enforcement of limits of conducted disturbance at the telecommunication ports is from 1st April 2010, and enforcement of EMI measurement above 1GHz is from 1st October 2010.”

Let us elaborate on this statement as follows to avoid any misunderstanding on your part. Note that “telecommunication ports” and “above 1GHz” are referred to as “category” in the explanation.

What is meant by this statement is that you are required to measure your ITE against the given limit for conformity verification report to be filed to VCCI on and after, not before, the given date per category. Also the limit will be inapplicable to products already filed to VCCI and distributed in the market before the enforcement date per category.