進(jìn)入澳大利亞市場(chǎng)銷售的 PLC 產(chǎn)品在此之前沒(méi)有專用的EMC測(cè)試標(biāo)準(zhǔn)，能夠使用的只有CISPR 22，但是以目前的PLT (PLC) 產(chǎn)品特性是無(wú)法符合 CISPR 22 的要求，因此根據(jù)實(shí)際情況，ACMA 針對(duì) EN 50561-1 與 EN 50561-3進(jìn)行了研究實(shí)驗(yàn)和咨詢公眾意見(jiàn)，最終決定采用EN50561-1作為家用PLT (PLC) 產(chǎn)品的 EMC 標(biāo)準(zhǔn)，由于目前沒(méi)有合理的依據(jù)證明EN 50561-3 的必要性，所以暫時(shí)不使用EN 50561-3。
原文出自:
The ACMA has completed a review of the regulatory arrangements for the supply of in-home powerline telecommunications (PLT) devices.
The review arose from a stakeholder request to adopt the European technical standard EN50561-1 as an applicable electromagnetic compatibility (EMC) standard for in-home PLT devices. EN50561-1 is a technical standard published by CENELEC that applies to in-home PLT devices operating up to 30 MHz. The ACMA was also asked to adopt EN50561-3, which applies to in-home PLT devices that operate up to 80 MHz. During the assessment of the suitability of EN50561-1, the ACMA became aware of the interference risk from in-home PLT devices to VDSL2 and G.fast broadband access technologies.
The review included public consultation and a stakeholder workshop. Submissions to the consultation are available on the PLT consultation page.
After considering the submissions received and the findings of its own research, the ACMA found that:
There appears to be systemic non-compliance across the in-home PLT device market. In particular, suppliers of in-home PLT devices have been unable to produce test reports demonstrating compliance with CISPR22, which has been the applicable EMC standard.
Despite the systemic non-compliance and the high volume supply of in-home devices to the Australian market over the past 10 years, the ACMA has not received any complaints of interference to radiocommunications services caused by in-home PLT devices.
The level of modification required to in-home PLT devices to ensure compliance with CISPR22 would significantly compromise the performance of the devices.
The lead Australian EMC technical committee, Standards Australia technical committee TE-003, does not believe that EN50561-1 is a suitable technical standard in Australia to manage the risk of interference from in-home PLT devices to radiocommunications services.
Laboratory testing observed by the ACMA has confirmed that there is an interference risk to VDSL2 and G.fast services under certain operating conditions. Laboratory tests indicate that, where a service is provided at the ‘highest rate’ (that is, 100/40 Mbs), the performance of the broadband system in a ‘worst case’ scenario can be degraded by around 50 per cent.
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