What Does Add/Drop Multiplexer (ADM) Mean?
An add/drop multiplexer (ADM) is a critical element of an optical fiber network. It can combine (i.e. multiplex) several low-bandwidth streams of data into a single light beam; and simultaneously, it can drop or remove other low-bandwidth signals from the stream of data and direct them to other network routes. The filtering technology used with ADM is called Fabry-Pérot etalon.
Techopedia Explains Add/Drop Multiplexer (ADM)
Thank of an ADM as an on-ramp/off-ramp to a high-speed optical fiber network.
