In
telecommunications
Telecommunication is the transmission of information by various types of technologies over wire, radio, optical, or other electromagnetic systems. It has its origin in the desire of humans for communication over a distance greater than that fe ...
, a remote digital terminal (RDT) typically accepts
E1,
T1 or
OC-3 Optical Carrier transmission rates are a standardized set of specifications of transmission bandwidth for digital signals that can be carried on Synchronous Optical Networking (SONET) fiber optic networks. Transmission rates are defined by rate of t ...
digital lines to communicate with a telephone
Access network
An access network is a type of telecommunications network which connects subscribers to their immediate service provider. It is contrasted with the core network, which connects local providers to one another. The access network may be further ...
(AN) or
telephone exchange (Local Digital Switch, LDS) on one side, and forms a
local exchange (LE) on the other, which is connected to "plain old telephone service" (
POTS) lines.
See also
*
Distributed switching Distribution may refer to:
Mathematics
*Distribution (mathematics), generalized functions used to formulate solutions of partial differential equations
* Probability distribution, the probability of a particular value or value range of a vari ...
*
Remote concentrator
In modern telephony a remote concentrator, remote concentrator unit (RCU), or remote line concentrator (RLC) is a concentrator at the lowest level in the telephone switch hierarchy.
Subscribers' analogue telephone/PSTN lines are terminated on co ...
*
Digital access carrier system
References
Local loop
{{telephony-stub