Design layout record

A Design Layout Record (also called by its acronym, DLR) is used in the telecommunication industry to describe the detailed design path of a completed telecommunications circuit, including all equipment and network components from one end of the circuit to the other.

It may be detailed enough to include location, floor, row, rack, panel and port for each circuit component or it may simply refer to another previously engineered circuit. A DLR may describe an end-to-end circuit that comprises physical or virtual circuits. As an example, a physical facility would include a panel, rack and port, while a virtual facility may be a channel on a channelized circuit, such as a T1 on a previously engineered DS3.