ADSL adapter filter for phone broadband internet telephone BT socket. Enables a broadband modem to plug in alongside a normal telephone device It filters out unwanted noise that could would otherwise appear on the telephone side due to the ADSL signal. Meets all SIN346 requirements including 'longitudinal balance' test.
Applied in voice or data transmission circuits.
Provides isolated conversion between modem and telephone line.
Filter function,and passed UK test standard.