Modulation technique utilizing variations in signal amplitude. QoS Quality of Service. Measure of service as specified by the Public Service Commission. Technology that supports both asymmetric and symmetric applications on a single twisted pair telephone line. RFI Radio Frequency Interference.
All electronic equipment generates radio waves, which interfere with other devices.
Router A device that connects LANs by dynamically routing data. RT Remote Terminal. The local loop can be terminated at RTs. RTs are intermediate points between the CO and the customer premises used to improve service reliability. RTU Remote Termination Unit.