电视与声音信号的电缆分配系统设备与部件双向干线放大器通用规范
电视与声音信号的电缆分配系统设备与部件双向干线放大器通用规范
Equipments and components used in cabled distribution systems primarily intended for television and sound signals Generic specification for two-way trunk amplifiers
发布日期:1998-03-11
实施日期:1998-05-01