[国外标准] BS EN 50083-2-2001 Cable networks for television signals, sound signals and interactive services — P
[国外标准] BS EN 50083-1-1994(﹢A1-1997﹢A2-1997) Cabled distribution systems for television, sound and interacti
[国外标准] PD CLC TR 50083-10-1-2009 Cable networks for television signals, sound signals and interactive servi