IEC 60728-13:2010 specifies the basic system parameters and methods of measurement for optical distribution system having a system outlet in order to assess the system performance and its performance limits. It describes the system specification of FTTH (fibre to the home) network for broadcast signal transmission. It is also applicable to the broadcast signal transmission using telecommunication network if it satisfies the optical portion of this standard. It describes RF transmission for broadcast and narrowcast (limited area distribution of broadcast) signals over FTTH, and introduces xPON system as a physical layer media.