New EN 61000 Requirements Slated to Go Into Effect

 

Manufacturers of who use EN 61000-6-4 for emission evaluations for products to be sold the European Union should take note of some important changes that are slated to go into effect with regard to their EMC testing requirements under EN 61000-6-4. The 2001 version of the standard will be withdrawn as of December 1, 2009. Any products that will be on the market after this withdrawal date will need to be tested to demonstrate compliance with the new 2007 version of the standard.

 

Conformance to the European Union’s CE marking requirements for industrial products that do not fall under a product specific standard for emissions evaluations involves compliance with the EN 61000-6-4 standard. (Common examples of products that do not have a product specific standard for emissions are semiconductor tools and industrial equipment for process control.)

 

EN 61000-6-4:2007 introduces requirements for measuring conducted emissions from telecommunications ports. Telecommunication ports include Local Area Network interfaces (Ethernet, 10/100 Base-T, 1000 Base-T) and Wide Area Network interfaces (telephone, DSL, POTS, T1, E1, Synchronous serial and DS3)

 

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Proposed Changes in requirements for Dynamic Frequency Selection (DFS) in the European Union

Manufacturers of Wireless devices operating in the 5GHz band should take note of proposed changes for the European Union's new Dynamic Frequency Selection (DFS) requirements that are slated to go into effect to prepare for current compliance efforts.

 1. The radio spectrum standards for devices using the 5150-5350MHz and 5470-5725MHz unlicensed bands (e.g. WiFi 802.11an devices) remain as previously published  - this is EN 301 893 V1.4.1 and EN 301 893 V1.3.1, with EN 301 489 V1.3.1 superseded by v1.4.1 on March 31st 2009

2. The previous listing OJ listing had indicated that the V1.3.1 and V1.4.1 standards did not adequately address protection for meteorological radars using the 5600-5650MHz band and added the following requirements for that sub-band:

• Detection of interleaved radar waveforms (no previous requirement to detect non-constant pulse periods);
• Detection of pulse widths of 0.8us (previously minimum width was 1.0us);
• A 10-minute Channel Availability Check (CAC)

3. The most recent listing updates the footnote to EN 301 893 V1.4.1.  This new note requires that devices subject to the radar detection requirements in the 5250 – 5350MHz and 5470-5725MHz bands will need to be evaluated for their capability to detect interleaved radars across all DFS bands if they are to be placed on the market after April 1, 2009. The requirements for using the 5600-5650 MHz band remain unchanged and while the footnote does suggest that EN 301 893 V1.5.1 contains assessment methods to evaluate these DFS requirements, it also notes that these assessment methods are only proposed. 

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Contact Us for more Information

If your company needs more information about ways that Elliott Laboratories can help you bring your existing products into compliance with the new EN61000 and Dynamic Frequency Selection (DFS) requirements, please contact us at (408)245-7800 or info@elliottlabs.com.