ITU-T G.9964 PDF

This Recommendation specifies the control parameters that determine spectral content, power spectral density (PSD) mask requirements, a set of tools to support reduction of the transmit PSD, means to measure this PSD for transmission over telephone wiring, power line wiring and coaxial cable, as well as the allowable total transmit power into a specified termination impedance. It complements the system architecture and physical layer (PHY) specification in [ITU-T G.9960], and the data link layer (DLL) specification in [ITU-T G.9961] as well as the modifications and additions to these Recommendations specifying the multiple input/multiple output (MIMO) home networking transceiver in [ITU-T G.9963].

This includes support for:

– A profile for 200 MHz baseband coaxial;

– Spectral content for 200 MHz operational frequency band (OFB) for telephone lines;

– Extended bandwidth over coaxial and phoneline mediums;

– An additional subcarrier spacing of 12.20703125 kHz for narrow-band channels.

For the Profile 2 limit PSD mask (LPM) on telephone lines, in a case where transmission is not limited to networks with increased shielding, such as those with shielded cables or where cables are buried underground, conformance of equipment with this Recommendation may not ensure compliance with specific national or regional regulation on electromagnetic compatibility when installations are taken into service.