A system for Clearing a frequency band which has a Filter and a Frequency Converter.

摘要

A Cable System (10) has a number of Caus (34) connected to a variety of Network Devices (58 - 68) in the building of the Subscriber (36).Network Devices (58 - 68) transmit signals at the Cau (34) in a Clear Frequency (100).The signals are connected to a filter (70) bloqueacualquier noise from the Building Entrance (36).The filter (70) is connected to a Mixer (76), which converts in descending the senalesdesde Clear Frequency (100) to the desired Frequency (104).The signs of Upward flow in a Band of derivation (102) from network devices are connected to a low pass filter (72).The signals are then combined with the converted signals are transmitted in a Descending way and Cable System (10).