Editing DOCSIS (section)

==European alternative==
As frequency allocation bandwidth plans differ between United States and European CATV systems, DOCSIS standards earlier than 3.1 have been modified for use in Europe. These modifications were published under the name '''EuroDOCSIS'''. The differences between the bandwidths exist because European cable TV conforms to [[PAL]]/[[DVB-C]] standards of 8&nbsp;MHz RF channel bandwidth and North American cable TV conforms to [[NTSC]]/[[ATSC]] standards which specify 6&nbsp;MHz per channel. The wider channel bandwidth in EuroDOCSIS architectures permits more bandwidth to be allocated to the downstream data path (toward the user). EuroDOCSIS certification testing is executed by Belgian company Excentis (formerly known as tComLabs), while DOCSIS certification testing is executed by CableLabs. Typically, [[Customer-premises equipment|customer premises equipment]] receives "certification", while CMTS equipment receives "qualification".