A new international standard from ITU-T looks set to help take home phoneline networking technology into the mainstream.
Home phone networking is a simple way to network devices such as computers, printers, games machines etc. in the home. It uses existing internal - telephone line - infrastructure and so is available to anyone with more than one phone in their home. Data rates up to 128 Mbps (240 Mbps with optional extensions) are achievable with the technology according to the Home Phoneline Networking Alliance (HomePNA) upon whose specifications some of ITU-T's standards are based.
ITU-T Recommendation G.9954 is the latest in a series of ITU-T Recommendations (including G.989.1, G.989.2 and G.989.3) in the area and outlines interoperability and compatibility issues for phoneline networking transceivers. Specifically it gives enhanced physical, media access, and link layer specifications for the devices.
A number of manufacturers are already incorporating ITU-T specifications into their phoneline networking products.