Active adaptor for matching building cabling to users e.g. for television signals converts from asymmetrical to symmetrical transmission e.g. for coax and patch cables

摘要

The active adaptor (3) is operable together with an amplifier. The adaptor includes an active distributor for distributing at least one incoming signal to several outputs, and an active converter for converting asymmetrical transmission to symmetrical transmission. The active converter includes an amplifier (9) for compensating for matching losses. The conversion from asymmetrical to symmetrical transmission involves an impedance change from 75 ohm to 100 ohm. A computer interface may be provided for controlling the adaptor using management software. Independent claims are included for an amplifier for the user side of a universal cabling layout, a system for universal cabling of a building and a method of transmitting signals via a universal cabling layout.