RT is short for Remote Terminal. An RT is generally any type of switching or routing equipment that is located outside of the traditional Telephone Central Office (C.O.). An RT is linked back to the C.O.. Most are linked by fiber optic cable either directly to the C.O. or on a SONET (Synchronous Optical NETwork). Some older RTs are linked by T1’s back to the C.O. over copper pairs.
RT’s often go by many other names depending on the manufacturer, type, or region. Some common names are: RT, Slc or “slick”, Slc96 or “slick 96”, PairGain, Fujitsu, Series5, Remote Office, LightSpan, CEV (controlled environment vault), and they go on.
RT’s are not a new technology. Many Telcos have been using the technology for decades. RTs were originally used to serve high growth areas where there are limited copper facilities. RT’s come in many shapes sizes and capabilities. Most RTs in service today are not DSL capable.
RT’s have been recently implemented to break the 18,000 foot DSL limitation from the central office and to serve people in outlying areas. The objective is to put the DSL equipment (DSLAM) closer to the subscriber, thus eliminating the distance limitation.
Note: In some cases it is possible to be too far from an RT for DSL service.
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