Patent ID: 6574236
Filing Date: 2003-06-03
Classification: H04M

Abstract:
An interface device for connecting a customer site to a VDSL based communication network providing combined narrowband and broadband signals, the interface device comprising:a network port for receiving the combined narrowband and broadband signals from a single twisted-pair copper cable connected to a network device; a narrowband port for connection to a wiring plant located at the customer site; a broadband port for connection to a twisted-pair copper cable located at the customer site; a frequency splitter connected to the network port for separating the broadband signals for output at the broadband port and the narrowband signals for output at the narrowband port; a low pass filter connected between the frequency splitter and the narrowband port for filtering the separated narrowband signals before output at the narrowband port, the low pass filter being further arranged to reduce feedback of EMI and other radio interference, which is electromagnetically coupled onto the narrowband wiring plant within the customer site, from entering the network; and a high pass filter connected between the frequency splitter and the broadband port for filtering the separated broadband signals before output at the broadband port, the high pass filter being further arranged to reduce feedback of EMI and other radio interference, which is electromagnetically coupled onto the broadband cable within the customer site, from entering the network.