What equipment is needed for Charter Telephony service?
In some areas two pieces of customer premise equipment are used: a Network Interface Unit (NIU) and a Local Power Supply Unit (LPSU). A NIU is a box that connects the coaxial cable from the drop and the twisted pair telephone line inside your home. The LPSU provides the power needed for Charter Telephone Service. In other areas a single modem is used rather than both a NIU and a LPSU. This modem both delivers the cable signal needed for Charter Telephone service and provides battery backup that keeps your service running if the power goes out.
